Apparatus and method for producing fulfillment pieces on demand in a variable imaging system

Abstract

The present invention discloses a method for assembling fulfillment pieces with custom documents in an efficient manner. The fulfillment pieces, which may have fixed and/or variable information, are produced in line on the same press as the custom documents. This "on demand" fulfillment is accomplished through the manipulation of an original database containing document recipient information. The database manipulation includes adding records (rows) or columns to the original database to represent the custom document and the fulfillment pieces. The modified databases are used to create press command files, which are combined according to the configuration of the database to produce ordered output from a press.

Claims

We claim:

1. A method of reproducing books and fulfillment pieces in distribution order, wherein each book and fulfillment piece may include variable data, comprising the steps of:

(a) modifying a database containing variable data for pages in the book to include reference to the fulfillment pieces;

(b) creating template page files, the page files having fixed information and a placeholder at the location on the page where the variable data will be reproduced;

(c) generating a press command file to specify the distribution order in which the pages and the fulfillment pieces should be reproduced;

(d) interpreting the pages and fulfillment pieces according to the press command file, including incorporating the variable data from the database into the pages at the location of the corresponding placeholder; and

(e) transmitting the pages and fulfillment pieces to a display device in distribution order.

2. The method of claim 1, wherein the display device is a demand printer that prints the pages and fulfillment pieces.

3. The method of claim 1, wherein the display device is a computer.

4. The method of claim 1, wherein the pages and fulfillment pieces are transmitted to a computer network.

5. The method of claim 1, further comprising the step of attaching the fulfillment pieces to the pages to be distributed to a single address.

6. The method of claim 1, wherein the reference to the fulfillment piece in the database comprises a file name corresponding to the fulfillment piece.

7. The method of claim 6, wherein the fulfillment pieces are generated as QuarkXPress.RTM. files.

8. The method of claim 1, wherein the database contains a record for each person and the step of modifying the database comprises:

(i) adding one column to the database for each fulfillment piece; and

(ii) for each column, adding the reference to the fulfillment piece for each person in each record.

9. The method of claim 8, wherein the step of generating a press command file comprises:

(i) creating a separate press command file for each book and each fulfillment piece;

(ii) for each record in the modified database, copying the press command file for the book and the press command file for each fulfillment piece referenced; and

(iii) merging the copied press command files into a new press command file.

10. The method of claim 1, wherein the step of modifying the database comprises:

(i) creating a controlling database containing variable data for the book, a record for each person and a column including a unique identification for each person; and

(ii) creating a fulfillment database for each fulfillment piece, wherein each fulfillment database contains variable information for the fulfillment piece, a record for each person and a column including the unique identification for each person.

11. The method of claim 10, wherein the step of generating a press command file comprises:

(i) creating a separate press command file for each book and each fulfillment piece;

(ii) analyzing the controlling database for identification numbers and for each identification number, searching each fulfillment database for the records containing that unique identification;

(iii) for each record in each fulfillment database containing that identification number, copying a press command file associated with the identification number; and

(iv) merging the copied press command files into a new press command file.

12. The method of claim 1, further comprising the step of adding a number of blank page files to the template page files, wherein the number of blank page files corresponds to a maximum number of pages in the fulfillment pieces.

13. The method of claim 12, wherein the pages of the fulfillment pieces are generated as QuarkXPress.RTM. files and stored in EPS format.

14. The method of claim 12, further comprising inserting an image box on each added blank page file.

15. The method of claim 14, wherein each image box is named corresponding to a column name in the modified database.

16. The method of claim 12, wherein the database contains a record for each person and each page in the fulfillment pieces is stored in a named file, and wherein the step of modifying the database further comprises adding the file name of the fulfillment piece pages for each record.

17. The method of claim 1, wherein the database contains a record for each person and the step of modifying the database comprises adding an additional number of records for each person, wherein the number of additional records per person corresponds to the number of fulfillment pieces for that person.

18. The method of claim 17, wherein the additional records for each person are added to the database in distribution order.

19. A method of generating books and fulfillment pieces in distribution order, wherein each book comprises a plurality of pages having static and variable information and the variable information is stored in a database which contains a record for each person to receive a book, comprising the steps of:

(a) creating template page files representing each page, wherein the page files include the static information and a placeholder at the location on the page where the variable information will be reproduced;

(b) adding an additional number of records to the database for each person, wherein the number of additional records per person corresponds to the number of fulfillment pieces for that person;

(c) for each additional record added to the database, inserting a reference to a fulfillment piece; and

(d) reading each record from the database, including mapping the variable information in the database to the corresponding placeholder on the page files to generate a book and, for each reference in the database to a fulfillment piece, generating that fulfillment piece.

20. The method of claim 19, further comprising the step of transmitting the books and fulfillment pieces to a demand printer to print the books and fulfillment pieces.

21. The method of claim 20, wherein the demand printer prints the books and the fulfillment pieces as separate pages.

22. The method of claim 19, wherein the additional records for each person are added to the database in distribution order.

23. The method of claim 19, wherein the fulfillment pieces include variable information.

24. The method of claim 19, further comprising the step of imposing the books and the fulfillment pieces into a single book.

25. The method of claim 24, further comprising the step of printing the imposed books and fulfillment pieces as a single document.

26. A method of generating books and fulfillment pieces in distribution order, wherein each book comprises a plurality of pages having static and variable information and the variable information is stored in a database which contains a record for each person to receive a book, comprising the steps of:

(a) creating template page files representing each page, wherein the page files include the static information and a placeholder at the location on the page where the variable information will be reproduced;

(b) adding a column to the database for each fulfillment piece and, for each column, adding a reference to the fulfillment pieces for each record;

(c) creating a press command file for each book and each fulfillment piece and, for each record in the database, copying the press command file for the book and the press command file for each fulfillment piece referenced, and merging the copied press command files into a new press command file; and

(d) interpreting the page files according to the new press command file, including mapping the variable data from the database to the corresponding placeholders on the page files.

27. The method of claim 26, further comprising the step of transmitting the books and fulfillment pieces to a demand printer to print the books and fulfillment pieces.

28. The method of claim 27, wherein the demand printer prints the books and the fulfillment pieces as separate pages.

29. The method of claim 26, further comprising the step of imposing the books and the fulfillment pieces into a single book.

30. The method of claim 29, further comprising the step of printing the imposed books and fulfillment pieces as a single document.

31. A method of generating books and fulfillment pieces in distribution order, wherein each book comprises a plurality of pages having static and variable information and the variable information is stored in a database, comprising the steps of:

(a) creating template page files representing each page, wherein the page files include the static information and a placeholder at the location on the page where the variable information will be reproduced;

(b) creating a controlling database containing variable data for the book, a record for each person to receive the book and a unique identification for each person;

(c) creating a fulfillment database for each fulfillment piece, wherein each fulfillment database contains variable information for the fulfillment piece, a record for each person and the unique identification for each person;

(d) analyzing the controlling database for identification numbers, and for each identification number, searching each fulfillment database for the records containing that unique identification, and for each record in each database containing that identification number, copying a press command file associated with the identification number and merging the copied press command files into a new press command file; and

(e) interpreting the page files according to the new press command file, including mapping the variable information from the databases to the corresponding placeholders on the page files.

32. The method of claim 31, further comprising the step of transmitting the books and fulfillment pieces to a demand printer to print the books and fulfillment pieces.

33. The method of claim 32, wherein the demand printer prints the books and the fulfillment pieces as separate pages.

34. The method of claim 31, further comprising the step of imposing the books and the fulfillment pieces into a single book.

35. The method of claim 34, further comprising the step of printing the imposed books and fulfillment pieces as a single document.

36. A method of generating books and fulfillment pieces in distribution order, wherein each book comprises a plurality of pages having static and variable information and the variable information is stored in a database which contains a record for each person, comprising the steps of:

(a) creating template page files representing each page in a book, wherein the page files include the static information and a placeholder at the location on the page where the variable information will be reproduced;

(b) adding a number of blank page files to the template page files, wherein the number of blank page files corresponds to a maximum number of pages in the fulfillment pieces;

(c) inserting an image box on each added blank page file;

(d) modifying the database by adding a reference to fulfillment piece pages for each record;

(e) interpreting the page files, including mapping the variable information from the database to the corresponding placeholders on the page files;

and

(f) imposing the book pages and the fulfillment piece pages for each record in the database into a single book.

37. The method of claim 36, wherein each image box is named corresponding to a column name in the modified database.

38. The method of claim 36, wherein the fulfillment piece pages are stored in a named file and the reference to the fulfillment pages in the database is the file name.

39. The method of claim 36, wherein the fulfillment piece pages contain variable information.

40. The method of claim 36, further comprising the step of transmitted the single book to a demand printer.

Description

TECHNICAL FIELD

The present invention relates generally to reproduction methods and systems, and more particularly to a method of and system for selectively reproducing images.

BACKGROUND ART

Most printing systems in use today utilize printing plates or cylinders which are engraved or photochemically processed to create an image thereon. Ink is then deposited on the plate or cylinder and the ink is thereafter transferred to a substrate, such as paper. In a conventional printing press, a number of pages are printed on a sheet of paper to form a signature which is then folded and assembled with other signatures. The assembled signatures are then bound, trimmed and finished by finishing apparatus to produce finished books, such as magazines, catalogs or any other printed and bound matter.

Often, there is a need to produce different versions of books and/or customized books within a single press run. For example, it may be desirable to produce a number of standard books together with a number of books having additional and/or different signatures or pages therein. Also, it may be necessary or desirable to provide customized information in the form of an address label, personalized information or the like on the inside or outside of finished books. In either case, conventional printing systems are not easily adaptable to produce books of these types.

A printing system which has the ability to produce differing book versions and/or books with customized information is disclosed in Riley U.S. Pat. No. 4,121,818, assigned to the assignee of the instant application. The printing system includes a number of packer boxes disposed adjacent a binding chain wherein each packer box stores a plurality of signatures. A control is included for controlling the packer boxes to selectively feed signatures onto chain spaces of the binding chain so that books of varying content can be produced. Customized information can be printed on the signatures by means of an ink jet printer which is selectively operated by the control. Other types of customization can be effectuated, such as by inserting or onserting cards or the like.

Other systems for producing customized books are disclosed in Abrams et al. U.S. Pat. No. 3,899,165, Wong et al. U.S. Pat. Nos. 4,500,083 and 4,674,052, Wong U.S. Pat. No. Re 32,690 and Berger et al. U.S. Pat. Nos. 4,768,766 and 4,789,147.

Image manipulating systems have been developed which permit gathering of images in an office or home environment. For example, conventional word processing programs, such as Microsoft.RTM. Word.RTM., WordPerfect.RTM. and the like, permit a user to import images into a page and also allow a user to command which pages of a document to print. In addition, macros (i.e., a sequence of commands) can be assembled and executed within these programs which can allow printing of particular document pages in a certain order. Still further, most word processing programs have merge capability wherein a customized image is merged with other standardized information and printed or displayed. As one example, customized information in the form of addressee and address information may be merged with standardized return address information and printed on a series of envelopes.

A different image gathering capability provided by CAD (computer aided design) software, sometimes referred to as "layering," involves the creation and storage of a base page and one or more layer pages. A user can issue commands to display or print the base page and one or more of the layer pages simultaneously atop one another to achieve an effect similar to the overlay of transparencies so that a composite page appearance results.

While the foregoing image manipulating systems allow some image gathering capability, none is effective to assist in the rapid production of different book versions. Of course, CAD systems are primarily designed for line art and not text or graphic images, and hence are of only limited use. Further, if one were to use word processing software to produce book versions it would be necessary to issue commands to separately print the pages of each book version just before such version is to be produced. That is, a user would have to create and store ages to be included in a first book version and then command the software to print as many copies of the first version as are needed. Thereafter, the user would have to recall the pages of the first version from memory, edit and store the pages to create pages to be included in a second book version and then command the system to print the required number of books of the second version. Similar steps would have to be undertaken for each other book version to be produced. Alternatively, the pages of the different book versions could be created and stored and thereafter printed together. In either event, where many book versions are to be produced, such a process would be quite time-consuming. In addition, image importation and merge routines provided as a part of word processing software are adapted for use on a sub-page basis only and hence are of only limited usefulness in the book production environment. Still further, data manipulated by word processing software are largely (if not entirely) in symbolic format. As a result, data to be displayed or printed must be first rasterized by a raster image processor (RIP), which utilizes complex and time-consuming computational routines which further increase production time to an economically impractical level.

Recently, new printing systems have been developed, called "demand printers," which are capable of high speed printing of images from electronic representations thereof. The demand printer produces high quality color (or black and white) images using a set of fusible toners in an electrophotographic process. More particularly, a web of paper is passed adjacent a series of drums, each of which has been electrostatically charged according to an image pattern for a particular color to be applied to the web. The charge is transferred to the paper and an oppositely charged toner of the proper color is brought into contact with the paper. The oppositely charged web and toner attract so that the toner is held on the paper as other colors are applied thereto. The toners and paper are thereafter heated to fuse the toners to the paper to produce the final image. The web is then cut into sheets (or "forms") and the forms are further processed as needed to produce a final product.

Unlike conventional presses which utilize engraved or photochemically prepared plates or cylinders, demand printers are capable of rapidly printing high quality images of differing content owing to the fact that the images are produced by an electrophotographic process. That is, instead of the need to replate and re-engrave a gravure cylinder when a different image is to be printed therewith, it is only necessary to change the charge applied to the drums of the printer in order to make such change. Thus, different images can be printed by the same printer without significant delays. This advantage makes the demand printer desirable for use in certain production environments.

Warmus et al. U.S. patent application Ser. No. 08/478,397, entitled "Variable Imaging Using An Electronic Press" discloses an apparatus and method for controlling an electronic press so that fixed and variable information may be printed in a simple and effective manner. More particularly, first and second sets of template data representing associated first and second template pages, respectively, are developed. Each set of template data includes master data representing fixed information and area data representing an area of a page for variable information. A database is also developed having a number of entries each of which represents variable information. The printer is operated in accordance with the sets of template data and the entries in the database such that the first and second template pages are displayed with selected variable information.

The Warmus et al. apparatus and method generates a page definition language representation of each single page and thereafter generates a page definition language representation of each imposed flat, i.e., each side of a piece of paper to be printed with two or more pages. Such a procedure can be computationally expensive and may limit productivity.

Prior Art Fulfillment Systems

The process of assembling additional pieces of information with a custom document is referred to as fulfillment. Traditionally, fulfillment is accomplished by preprinting all static fulfillment pieces off-line and warehousing them in sorted bins. After the customized document is produced, the appropriate static fulfillment pieces are assembled with each custom document to be mailed. Assembly of the custom documents and the fulfillment pieces is typically done manually. For example, if John Smith is to receive static fulfillment pieces A,B, and C with his custom document, a production worker manually pulls static pieces A,B, and C from the appropriate bins and assembles them with the custom document to be mailed to John Smith.

This fulfillment process is prone to human error due to the fact that the person picking the fulfillment pieces from the bins may inadvertently pull a fulfillment piece from the incorrect bin. Additionally, the person responsible for stocking the bins with the fulfillment pieces may inadvertently stock the bins with the wrong pieces, which would result in the "incorrect" fulfillment pieces being pulled from the "correct" bins. Another shortcoming of the manual fulfillment process is the need to store the pre-printed fulfillment pieces in a warehouse, which can result in warehousing costs and obsolesence of the fulfillment pieces. Additionally, the number of pieces pre-printed is typically in excess of projected needs to avoid running out of fulfillment pieces in the event that some of the pre-printed pieces are damaged or have defects such as smudges. Overprint leads to waste of the excess fulfillment pieces when a job is completed.

Traditionally, since the fulfillment pieces are printed offline, they must contain the same information for everyone that is to receive a particular fulfillment piece. That is, there can be no customization of the fulfillment pieces.

Peach et al., U.S. Pat. No. 5,053,955, discloses a process for merging promotional information from different promotions based on multiple requests. The information is merged into a single stream for printing. Printing can be arranged such that the items are printed in the desired mailing sequence.

Hidding, U.S. Pat. No. 5,519,624, discloses a fulfillment system wherein a main document is scanned. Based on the information read by the scanner, documents are selected for enclosure with the main document. The information read by the scanner prompts the database to send data for the appropriate enclosures to a printer. After the enclosure documents are printed they are assembled with the main document for mailing.

The Peach et al. and the Hidding systems are incapable of providing fulfillment pieces having custom information for each recipient. Also, in the Peach et al. and Hidding systems, the fulfillment pieces are printed separately from the main document and cannot be incorporated into a single document. Additionally, the Hidding system requires the use of a bar code on the master document and a scanner to read the bar code. Once the fulfillment pieces are printed, they must be manually assembled with the appropriate master document. Moreover, both the Peach et al. and the Hidding systems require the use of the same stock size for all printed material.

The present invention overcomes many of the limitations of the prior art in that it allows "on-demand fulfillment" or in-line processing of fulfillment pieces that are to accompany a primary mailing. The present invention allows fulfillment pieces to be reproduced as they are needed in mailing order along with the primary mailing, which avoids manual assembly. The fulfillment pieces may be printed as separate sheets or combined with the primary mailing as a complete book. Also, the present invention provides additional flexibility in that the fulfillment pieces can contain variable information and can be printed on different stock. Additionally, the present invention reduces processing time by eliminating redundant processing of static information.

SUMMARY OF THE INVENTION

According to one aspect of the present invention, a method of reproducing books and fulfillment pieces in distribution order, wherein each book and fulfillment piece may include variable data, comprises the steps of: (a) modifying a database containing variable data for pages in the book to include reference to the fulfillment pieces; (b) creating template page files, the page files having fixed information and a placeholder at the location on the page where the variable data will be reproduced; (c) generating a press command file to specify the distribution order in which the pages and the fulfillment pieces should be reproduced; (d) interpreting the pages and fulfillment pieces according to the press command file, including incorporating the variable data from the database into the pages at the location of the corresponding placeholder; and (e) transmitting the pages and fulfillment pieces to a display device in distribution order.

In a preferred embodiment, the display device is a demand printer that prints the pages and fulfillment pieces or a computer that transmits the pages and fulfillment pieces are transmitted to a computer network. Also, the fulfillment pieces may be printed as separate sheets or attached to the pages to be distributed to a single address. The reference to the fulfillment piece in the database may comprise a file name corresponding to the fulfillment piece and the fulfillment pieces may be generated as QuarkXPress.RTM. files.

According to another aspect of the present invention, a method of generating books and fulfillment pieces in distribution order, wherein each book comprises a plurality of pages having static and variable information and the variable information is stored in a database which contains a record for each person to receive a book, comprises the steps of: (a) creating template page files representing each page, wherein the page files include the static information and a placeholder at the location on the page where the variable information will be reproduced; (b) adding an additional number of records to the database for each person, wherein the number of additional records per person corresponds to the number of fulfillment pieces for that person; (c) for each additional record added to the database, inserting a reference to a fulfillment piece; and (d) reading each record from the database, including mapping the variable information in the database to the corresponding placeholder on the page files to generate a book and, for each reference in the database to a fulfillment piece, generating that fulfillment piece.

According to yet another aspect of the present invention, a method of generating books and fulfillment pieces in distribution order, wherein each book comprises a plurality of pages having static and variable information and the variable information is stored in a database which contains a record for each person to receive a book, comprises the steps of: (a) creating template page files representing each page, wherein the page files include the static information and a placeholder at the location on the page where the variable information will be reproduced; (b) adding a column to the database for each fulfillment piece and, for each column, adding a reference to the fulfillment pieces for each record; (c) creating a press command file for each book and each fulfillment piece and, for each record in the database, copying the press command file for the book and the press command file for each fulfillment piece referenced, and merging the copied press command files into a new press command file; and (d) interpreting the page files according to the new press command file, including mapping the variable data from the database to the corresponding placeholders on the page files.

According to still another aspect of the present invention, a method of generating books and fulfillment pieces in distribution order, wherein each book comprises a plurality of pages having static and variable information and the variable information is stored in a database, comprises the steps of: (a) creating template page files representing each page, wherein the page files include the static information and a placeholder at the location on the page where the variable information will be reproduced; (b) creating a controlling database containing variable data for the book, a record for each person to receive the book and a unique identification for each person; (c) creating a fulfillment database for each fulfillment piece, wherein each fulfillment database contains variable information for the fulfillment piece, a record for each person and the unique identification for each person; (d) analyzing the controlling database for identification numbers, and for each identification number, searching each fulfillment database for the records containing that unique identification, and for each record in each database containing that identification number, copying a press command file associated with the identification number and merging the copied press command files into a new press command file; and (e) interpreting the page files according to the new press command file, including mapping the variable information from the databases to the corresponding placeholders on the page files.

According to yet another aspect of the present invention, a method of generating books and fulfillment pieces in distribution order, wherein each book comprises a plurality of pages having static and variable information and the variable information is stored in a database which contains a record for each person, comprises the steps of: (a) creating template page files representing each page in a book, wherein the page files include the static information and a placeholder at the location on the page where the variable information will be reproduced; (b) adding a number of blank page files to the template page files, wherein the number of blank page files corresponds to a maximum number of pages in the fulfillment pieces; (c) inserting an image box on each added blank page file; (d) modifying the database by adding a reference to fulfillment piece pages for each record; (e) interpreting the page files, including mapping the variable information from the database to the corresponding placeholders on the page files; and (f) imposing the book pages and the fulfillment piece pages for each record in the database into a single book.

Other features and advantages are inherent in the apparatus claimed and disclosed or will become apparent to those skilled in the art from the following detailed description in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram illustrating a prior art method of producing books;

FIG. 2 is a block diagram of a method of producing books implementing the present invention;

FIG. 3 is a block diagram illustrating an exemplary system for implementing the method of the present invention illustrated in FIG. 2;

FIG. 4 is a block diagram illustrating one of the demand printing systems of FIG. 3 in greater detail;

FIG. 5 is a generalized diagram of the steps implemented by the method of the present invention;

FIGS. 6a and 6b are elevational views of portions of a sample book that may be produced by the present invention;

FIGS. 7a, 7b and 8a, 8b are elevational views of portions of other sample books that may be produced by the present invention;

FIG. 9 is a flowchart illustrating programming that may be executed by a user on a personal computer to create the template files 105 of FIG. 5;

FIGS. 10a-10f, when joined along similarly-lettered lines, together represent programming executed by the control unit 52 of FIG. 3;

FIG. 11 is a flowchart illustrating the programming implemented by the control unit 52 to generate a page description language instruction set specifying which pages should be printed and how the pages should be positioned (or imposed) for printing;

FIG. 12 is a sample window to prompt a user for the information needed to create a pagination file;

FIG. 13 is a flowchart illustrating in detail the programming implemented by the block 348 of FIG. 11 which determines which pages should be printed for a particular record in the press command file;

FIG. 14 is a flowchart illustrating in detail the programming implemented by the block 350 of FIG. 11 to determine whether the pages should be forced to the left or right-hand side of the book;

FIG. 15 is a flowchart illustrating in detail the programming implemented by the block 352 of FIG. 11 to pad the pages included in the book into a multiple of the number of pages to be printed on a sheet;

FIG. 16 is a sample window to prompt a user to provide various information to select imposition and printing styles;

FIG. 17 is a flowchart illustrating the programming implemented to RIP page files to Tiff format for use in "Get Tiff" imposition in accordance with the present invention;

FIG. 18 is flowchart illustrating the programming implemented to impose pages using "Get Tiff" imposition in accordance with the present invention;

FIG. 19 is a more detailed block diagram of the print system 79 (shown in FIG. 4) incorporating the imposition-on-the-fly procedures of the present invention;

FIG. 20 is a flowchart illustrating the standard operation of the Level 2 PostScript.RTM. showpage operator;

FIG. 21 is a flowchart illustrating the program steps implemented by the redefined Postscript.RTM. initclip operator according to the imposition-on-the-fly procedures of the present invention;

FIG. 22 is a flowchart illustrating the program steps implemented by the redefined PostScript.RTM. transform operators according to the imposition-on-the-fly procedures of the present invention;

FIG. 23 is a flowchart illustrating the program steps implemented by the EnableVirtualDevice procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 24 is a flowchart illustrating the program steps implemented by the DisablePageDevice procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 25 is a flowchart illustrating the program steps implemented by the SetPortrait procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 26A is a diagram illustrating the conversion of a portrait-oriented page to a landscape-oriented page according to the SetPortrait procedure of FIG. 24;

FIG. 26B is a diagram illustrating the conversion of a landscape-oriented page to a portrait-oriented page according to the SetPortrait procedure of FIG. 24;

FIG. 27 is a flowchart illustrating the program steps implemented by the setvirtualdevice procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 28 is a flowchart illustrating the program steps implemented by the ImposeJob procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 29 is a flowchart illustrating the program steps implemented by the ImposeFile procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 30 is a flowchart illustrating the program steps implemented by the MakeNull procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 31 is a flowchart illustrating the program steps implemented by the redefined EndPage procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 32 is a flowchart illustrating the program steps implemented by the redefined BeginPage procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 33 is a flowchart illustrating the program steps implemented by the Vsave procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 34 is a flowchart illustrating the program steps implemented by the Vrestore procedure according to the imposition-on-the-fly procedures of the present invention;

FIG. 35 is a flowchart illustrating the program steps implemented by the redefined PostScript.RTM. save operators according to the imposition-on-the-fly procedures of the present invention;

FIG. 36 is a flowchart illustrating the program steps implemented by the redefined PostScript.RTM. restore operator according to the imposition-on-the-fly procedures of the present invention; and

FIG. 37 is a flowchart illustrating the program steps implemented by the redefined PostScript.RTM. grestore and grestoreall operators according to the imposition-on-the-fly procedures of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 illustrates a prior art method of producing books, for example, as shown in the above-identified Riley et al. '818 patent. During a publishing step 20, the contents of one or more book versions are determined. Each version may comprise, for example, a set of standard or common pages. In addition, some of the versions may include one or more additional pages or other customized information. Thereafter, during a preliminary step 22, color correction of color images is undertaken together with undercolor removal and screening for halftone images. During a prepress step 24, page imposition is effected and printing cylinders or plates are prepared. The plates or cylinders are then used during a printing step 26 to prepare signatures which are loaded into packer boxes (not shown). As noted in the Riley et al. '818 patent identified above, the signatures are then selectively collected on a gathering chain (not shown) during a book assembly step 28 and the gathered signatures are bound and trimmed to create the books. The books are thereafter distributed during a step 30 to users via one or more distribution systems, for example, the U.S. Postal Service.

As should be evident from the foregoing, customization occurs during the book assembly step 28, inasmuch as the choice of particular signatures to be included in a book is made at that time. In addition, customized information can be printed onto selected signatures using an ink jet printer disposed adjacent the gathering chain. Thus, for example, addressee information can be printed by the ink jet printer on assembled books so that preprinted addressee labels need not be used. Other types of customization can be effected at this time, for example, by inserting or onserting cards into or onto a stack of collected signatures, affixing a specialized or customized cover on a gathered stack of signatures, or the like. Customization at this point in the production process is simpler and less expensive than, for example, separately printing each book version with customized information.

FIG. 2 illustrates a block diagram of a method 40 according to the present invention which may be used in place of the method of FIG. 1 to produce books. The method 40 includes a step 42 which utilizes the output of publishing and preliminary steps 36, 38 and produces books for distribution according to the step 30 of FIG. 1. The step 42 creates one or more master and variable page files in, for example, a page description language (PDL) such as PostScript.RTM. (Postscript.RTM. is a trademark of Adobe Systems, Inc. for its page description language) representing pages to be produced. In addition, as noted in greater detail hereinafter, a press command file (also referred to as a "book ticket" file) is developed which specifies the manner in which data contained within the master and variable page files are to be merged to produce printed pages. The format of the press command file may be, for example, of the form specified by Barco Graphics of Gent, Belgium, which is particularly suited for control of a DCP-1 digital color press manufactured by Xeikon of Mortsel, Belgium. Alternatively, the format of the press command file may be of the form specified for control of a DocuPrint printer, manufactured by Xerox Corporation. Other demand printers include the IBM 3900 or Siemens 2090 Twin or 2140 Twin. It should be noted that the apparatus and method of the present invention are not limited to use with a particular type of demand printer or a particular system for controlling such a printer, inasmuch as the invention can be adapted for use with any type of printer or control whether located locally or remotely.

The master and variable page files and the press command file are converted by a collator and raster image processor (RIP) into bitmaps which may be stored in a memory. The stored bitmaps are used to control one or more demand printers and/or any other type of display device, such as a laser printer, a CRT, an LCD display or the like so that the device displays pages having fixed and variable information thereon. Alternatively, the master and variable page files may be premerged to create a plurality of combined files each representing a page to be reproduced with master and variable information. The combined files can be then sent to any type of printer or other display device, whether local or remote. Also, the combined files can be converted to a suitable format (e.g., Acrobat.RTM. PDF format) and transmitted to a remote location using a facsimile machine, e-mail, the Internet/World Wide Web or other transmission medium, if desired. Advantageously, the combined files may be transmitted over the Internet or any other networked or linked computers, such as a company intranet. In this case, an electronic page containing customized data can be sent over the Internet/intranet to a user based upon user demographic(s), a user search and/or any other identifiable user interests(). For example, a customized Internet page could be sent with links to other web pages of interest to a user or a customized page may be sent in response to a user search for information on a particular subject. Alternatively, or in addition, ads could be generated and sent as a web page to one or more users based upon user demographics. As a further example, personnel information concerning a particular employee may be sent to the employee in response to a request for information.

If the pages are to be displayed by rendering the ages on the demand printer, the assembled books may be bound and trimmed and, if desired, further customized, during a finishing step.

FIG. 3 illustrates a system 50 which implements the steps 36, 38 and 42 in the method 40 of FIG. 2. A control unit 52, which may be implemented by a personal computer or another type of computer, includes a memory 53 and stores therein data representing images to be printed. As noted in greater detail hereinafter, the data may be specified by a publisher using a personal computer 54 or any other type of computer and may comprise one or more template files specifying pages to be produced with master or fixed printed information (i.e., printed information which does not vary from book to book of the same version) and variable printed information (which typically varies from book to book). The variable information may be stored in a database created by the publisher and the template file(s) specify the locations on particular pages for variable information stored in the database, as noted in greater detail hereinafter.

If desired, image data may be obtained from any other type of device or devices, such as a scanner which scans input copy, data supplied over a network or any other source. The control unit 52 is further responsive to control and makeready files and causes one or more demand printing systems 62 to print desired pages. While three demand printing systems 62a-62c are illustrated in FIG. 3, it should be understood that the control unit 52 may operate a different number of demand printing systems, as desired. Also, the control unit 52 may operate a fax machine 64 and/or may communicate with other remote devices to send properly converted combined files, as desired and as noted above. In the case of other remote devices, a modem 65 may be operated by the control unit 52 to transmit data representing one or more pages to be displaced by a display device at a remote location over phone lines (land lines and/or cellular) or a combination of phone lines and the Internet. Alternatively or in addition, the data may be sent to a local or remote location at least in part over an intranet or another computer network through a direct connection therewith. The combined files may be printed or may alternatively be reproducible in a different medium and/or may comprise a non-static image or other information, e.g., movies or audio.

The pages printed by the demand printing system 62 may be supplied to a finishing apparatus 66 which includes various auxiliary production devices and device interfaces for assembling the pages to produce finished books which are ready for distribution. The finishing apparatus 66 may include one or more gathering devices 70 for gathering printed pages into books, one or more ink jet printers 72 for printing additional customized information, such as addressee information, on each book, one or more label printers 74 for printing address labels and/or other control devices 76. In addition, one or more detectors 78 may be provided to sense when a defective book is produced. The control unit 52 may be responsive to the output of the detector 78 to reorder a defective book at an appropriate point in the production sequence thereof so that advantage can be taken of postal discounts, if possible.

One or more components of the finishing apparatus 66 may be physically located on the demand printer (i.e. "online finishing"). Alternatively, the finishing apparatus 66 may be physically separate from the demand printer (i.e. "offline finishing").

FIG. 4 illustrates the demand print system 62a of FIG. 3 in greater detail, it being understood that the systems 62b and 62c are functionally similar. The system 62a includes a print system 79 having a press controller 80, a collator 81 and a raster image processor (RIP) 82 which are operable in response to press commands generated by the control unit 52. A collator is an electronic device for storing raster image processor files (i.e., bitmap files) and delivering selected files to a digital press in real time, such that the digital press can run at full speed while processing and printing unique page data for each book produced on the press. The RIP 82 converts the page files to bitmap format or any other format, such as a symbolic printer control language. The collator 81 includes memory in the form of mass storage drives and physical memory and collates the bitmap page files. If desired, the collator 81 and/or RIP 82 may comprise a part of the press controller 80. The controller 80 instructs the collator 81 to send page files to a demand printer 84. The print system 79 may comprise the PrintStreamer system, manufactured and marketed by Barco Graphics of Belgium, while the demand printer 84 may comprise the Xeikon DCP-1 digital color press noted above. Alternatively, the demand printer 84 may be a DocuPrint printer manufactured by Xerox Corporation and the RIP 82 may be a Xerox DocuPrint RIP.

It should be noted that a different print system and/or demand printer may alternatively be used, such as the Indigo printer manufactured by Indigo Nev., of Maastricht, Netherlands, if desired.

FIG. 5 illustrates in diagrammatic generalized form he method of the present invention. For the purpose of explaining the present invention, as an example, it will be assumed that the demand print system 62a will be operated to produce a number of multiple-page books in the form of a brochure in duplex (or "saddle-stich") format. FIGS. 6a and 6b illustrate four pages P1-P4 printed on a single sheet of paper 100 and to be included in a brochure. The sheet of paper 100 includes a first side 100a with printed pages P1, P4 thereon and a second side 100b with pages P2, P3 printed thereon. (As will become evident hereinafter, the use of designations P1-P4 is not meant to imply that such pages will necessarily become pages 1, 2, 3 and 4 of the finished book.) In addition, pages P1-P4 are imposed such that the page P1 is placed on a right-hand portion 100a-r of the side 100a while the page P4 is placed on a left-hand portion 100a-l of the side 100a. Further, the page P2 is placed on a left-hand portion 100b-l of the side 100b while the page P3 is placed on a right-hand portion 100b-r of the side 100b. In this fashion, when the sheet of paper 100 is folded along a fold line 102 with the pages P1 and P4 on the outside, the pages P1-P4 appear in sequence. (The format shown in FIGS. 6A and 6B is often referred to as "saddle stitch" imposition and is commonly used in magazines.) Because each book to be produced in this example includes multiple sheets of paper (or "forms"), each folded once along a fold line, the imposition process takes into account shingling effects but not bottling effects. It should be noted both of that such effects will generally have to be taken into account when more than two pages are to be printed on a single side of a sheet of paper and thereafter folded multiple times and assembled with other multiple-folded printed sheets of paper to create a book.

In addition to the foregoing, in the first example, assume that the pages P1 and P4 will become the outside front and back covers, respectively, of a finished book and include variable and fixed information thereon. Further, assume that the pages P2 and P3 will become the inside front and back covers, respectively, (as must be the case if P1 and P4 are the outside front covers) and include fixed information only thereon. For example, the page P1 may include variable information in the form of a personalized message, a variable image, or the like in an area 110 whereas the page P4 may include other variable information in an area 112, for example, postal information for mailing the brochure to an addressee. Corresponding front and back pages of the remaining books may include different variable information. The remaining printed information on pages P1-P4 may be identical to the printed information on corresponding pages of remaining books.

The books to be produced may include the same or differing number of forms and may have the same or differing numbers of pages. For example, the pages P1-P4 may be assembled with a number of other printed forms comprising twelve additional pages to produce a first book having sixteen pages. Another book to be produced in the same run may include some or all of pages P1-P4 and a second number of forms printed with twenty other pages, some of which may or may not be identical to the twelve additional pages of the first book. Filler pages may be placed in some or all books to cause such book(s) to have a certain number of pages. This may be necessary or desirable to result in a book length which is evenly divisible by four (in the event pages are imposed as two-page spreads) and/or to insure that particular page(s) appear on the left-hand or right-hand side in the finished book.

In fact, the books to be produced in the same press run may be different in terms of page content and/or appearance, book length, book size (by changing page imposition parameters), book version, etc . . . Specifically, for example, the pages of FIGS. 7a, 7b and 8a, 8b may be produced and assembled in different book versions together with the book version incorporating the pages of FIGS. 6a and 6b in the same production run or job. Pages P5-P8 of FIGS. 7a and 7b are identical to the pages P1-P4, respectively, of FIGS. 6a and 6b except that an additional area 113 is provided on the page P5 for placement of variable information, in addition to the areas 110 and 112. Because of the addition of the area 113, the remaining master information appearing in an area 114 differs from master information appearing in an area 116 of the page P1 of FIG. 6a.

The book version incorporating eight pages P9-P16 of FIGS. 8a and 8b differs from the book versions incorporating the pages of FIGS. 6a, 6b and 7a, 7b not only in terms of content of master and variable information, but also number of pages and page size. Specifically, the pages P9, P12, P13 and P16 are to be printed on a first side 117a of a sheet of paper 118 and the remaining pages P10, P11, P14 and P15 are to be printed on a second side 117b of the sheet 118. In addition, the pages P11-P14 are printed upside down relative to the remaining pages so that, when the sheet 118 is folded first along a fold line 119a and then along a fold line 119b, the resulting pages P9-P16 appear in order. Thereafter, the folded sheet 118 is trimmed to separate the pages P9-P16. As should be evident, the pages P9-P16 are one-half the size of the pages P1-P8, and further include different master and variable information thereon. The demand printer may also have multi paper trays to select different paper sizes, stocks, colors etc. or preprinted sheets to be included in the finished book.

Referring again to FIG. 5, one or more template files 106 are developed by a publisher specifying the content (including appearance) of fixed information and the positioning of all information (i.e., fixed and variable) on the different books or book versions. A database 108 is also developed by the publisher using the personal computer 54 specifying the content of variable information to be placed in variable information areas, for example, the areas 110, 112 on the pages P1, P4, respectively, of FIGS. 6a and 6b. The database 108 further includes control information, as noted in greater detail hereinafter.

The template files 106 include data specifying the position and content of fixed information on the pages to be printed. Specifically, the template files 106 define template pages wherein each template page includes data representing any fixed information to be reproduced on corresponding pages of the books or book versions and area data representing any area(s) on the corresponding pages where variable information is to be reproduced. The template files are duplicated to create working files. One set of working files is stripped of all area data relating to placement of variable information to create stripped master page files 120 defining template pages having only fixed information thereon. The stripped master page files are then converted into PDL master page files 122 expressed in a page description language, such as Postscript.RTM..

Optionally, the PDL master page files 122 may be converted into two-page spreads by a page make-up program such as QuarkXPress.RTM.. Preferably, however, the PDL master page files 122 are provided to the print system 79 and imposed according to the imposition processes of the present invention, as explained in detail below.

A further set of working files is stripped of all fixed information to create stripped variable page files 126 defining template pages having fixed information removed therefrom and further having the area data defining the areas 110, 112. The data representing template pages having variable information thereon are expanded into a set of intermediate page files. In the example of FIGS. 6a and 6b and under the assumption that three books are to be printed, two intermediate page files 130, 132 are thus produced. The file 130 includes a file portion P1-a defining the position of variable information to be produced on the page P1 for the first book. Two other file portions P1-b and P1-c define the position of variable information to be produced on the front outside covers of the remaining two books. In like fashion, file portions P4-a, P4-b and P4-c represent the position of variable information to be reproduced on the back outside covers of the three books. At this point, data is also contained in each of the files 130, 132 identifying the entries in the database 108 to be placed in the areas 110, 112 during printing.

The files 130, 132 are then converted into variable page files 134, 136. The files 134, 136 are identical to the files 130, 132, respectively, except that the data in each file identifying entries in the database are replaced by the actual data stored at such entries. The files 134, 136 are then converted into files 137, 138 in a PDL format, for example, Postscript.RTM..

Like the master PDL files 122, the variable PDL files 137, 138 may be converted into two-page spreads by a page make-up program such as QuarkXPress.RTM.. Preferably, however, the variable PDL files 137, 138 are provided to the print system 79 and imposed according to the imposition procedures of the present invention, as explained in detail below.

The print system 79 operates in response to the press commands in a press command file 140 and merges the PDL master page files 122 with the PDL variable files 137, 138 to create the finished books or book versions. Alternatively, the master page files 122 may be premerged with the PDL variable files 137, 138 before the files are provided to the print system 79.

FIG. 9 illustrates a flow chart of programming executed by the personal computer 54 for creating the template file(s) 106 of FIG. 5. The programming may be written as an extension of QuarkXPress.RTM., a page make-up program distributed by Quark, Inc. of Denver, Colo. The QuarkXPress.RTM. program may be adapted for operation on the Apple.RTM. Macintosh.RTM. operating system or any other operating system, such as the Microsoft Windows.RTM. operating system. Alternatively, a different page make-up program may be used, if desired.

During the make-up process for a document consisting of one or more pages, a template file is created for each book version to be produced, or, where a book is to include two or more parts (referred to as "sections" hereinafter) a template file may be created for each section. At a block 150 a user may select an area of a page for reproduction of variable information therein, at which point a line object, a text object or an image object may be selected. A block 152 then checks to 5 determine which type of object has been selected. If a text object has been selected, indicating that variable text is to be inserted at a point defined by the current cursor position on the computer display, the name or an indication of the appropriate field in the database 108 is inserted into the template file at the insertion point defined by the current cursor position by a block 154. If the user wishes to designate more areas for variable information (block 156) control returns to the block 150 to await selection by the user. If the user then selects an image object, a box is defined by the user to contain an image at a desired location on a selected page. Control from the block 152 thereafter passes to a block 158 which inserts a dummy picture file and an indication of the proper database field name in the template file for the page at the location indicated by the current cursor position. The user will thereafter see the dummy picture file at the insertion point on the display of the computer 54 when the page is viewed. The dummy picture file will display an indication of which database field will be used for insertion on the respective pages.

Following the block 158, a block 160 prompts the user to enter an indication of whether the image object is to be displayed in one of several display formats. If the image is to be displayed in other than the original size thereof, a block 162 sets a subname defined for the image to "fit," indicating that the image is to be scaled to fit the box. If the image is to be displayed in the original size thereof, a block 163 prompts a user to select a position for the image at a particular location in the box defined therefor, such as the upper left-hand corner, the lower right-hand corner, or the like. If the user does not select a position, the image is placed in the upper left corner of the image box. Control thereafter proceeds to the block 156.

If the block 152 determines that a line object has been selected, control returns directly to the block 150, inasmuch as variable information cannot be entered into a line object. The resulting page template files(s) are stored on a storage medium, such as an optical disc or other storage device, and/or the files(s) are downloaded together with the database to the control unit 52.

At any point during the page make-up process, other functional aspects of the QuarkXPress.RTM. program may be invoked to both master and variable aspects as necessary to produce finished pages.

The database 108 is assembled by creating an ASCII file having a plurality of records wherein each record includes one or more fields entered into the database in tab-delimited format (i.e, the fields are separated from one another in each record by tab keystrokes and the records are separated from one another by line returns) and wherein the fields are arranged under field names of a header. Each field may include text to be reproduced on a page or a name of an image file stored in the memory 53 and defining an image to be reproduced on a page.

In addition to the foregoing data, the database 108 may include an optional field designating the number of copies of each book to be produced, an optional townsort image field, a version identification field indicating book version number if multiple book versions are to be produced, an optional distribution list field, control data and the like.

A sample database is set out below having a header consisting of twelve fields (i.e., "version," "addressline1," "addressline2," etc.) and a number of records, nine of which are shown, each having twelve fields:

    __________________________________________________________________________
    Version
        Addressline1
               Addressline2
                     Addressline3
                            Addressline4
                                  Addressline5
                                        Price1
                                            Image1
                                                Price2
                                                    Copies
                                                        Barcode
                                                              Townsort
    __________________________________________________________________________
    01  William Doe
               123 Elm
                     Chicago
                            Illinois
                                  606248923
                                        $22.95
                                            Shoes
                                                $21.95
                                                    1   !606248923!
    03  Hugh   56 Maple
                     Chicago
                            Illinois
                                  606248923
                                        $21.95
                                            Shirt
                                                $20.95
                                                    1   !606248923!
        Jorgensen
    02  Jay P. 1313 Park
                     Chicago
                            Illinois
                                  606248924
                                        $24.95
                                            Pants
                                                $22.95
                                                    1   !606248924!
                                                              .box-solid.
        Morgan
    02  Joe Louis
               819 Elm
                     LaGrange
                            Illinois
                                  605251093
                                        $19.95
                                            Pants
                                                $18.95
                                                    1   !605251093!
    03  John Smith
               926 Cossit
                     LaGrange
                            Illinois
                                  605261093
                                        $19.95
                                            Shoes
                                                $15.25
                                                    1   !605251093!
    01  Len Johnson
               882 Monroe
                     LaGrange
                            Illinois
                                  605251093
                                        $19.95
                                            Shoes
                                                $17.25
                                                    1   !605251093!
    02  Janet Cizmar
               916 Monroe
                     LaGrange
                            Illinois
                                  605251094
                                        $24.95
                                            Pants
                                                $21.95
                                                    1   !605251094!
                                                              .box-solid.
    03  Jay Schroeder
               88 W. 77th
                     Brookfield
                            Illinois
                                  605241391
                                        $21.95
                                            Shirt
                                                $19.95
                                                    1   '605241391!
    03  Danielle
               129 Madison
                     Brookfield
                            Illinois
                                  605241391
                                        $22.95
                                            Shirt
                                                $19.95
                                                    1   !605241391!
                                                              .box-solid.
        Johnston
    __________________________________________________________________________

    ______________________________________
              1            7
              8           43
              9           44
             10           45
             11           46
             11           47
             13           50
             14           52
             15           50
             15           51
    ______________________________________

    ______________________________________
    Original Database
           Xname       Xaddress
    ______________________________________
           Jim         123 Easy St.
           Mark        234 Grove St.
           Pete        345 Lucky Ln.
    ______________________________________

    ______________________________________
    Piece                 File Name
    ______________________________________
    Customized Benefits   Benefits
    Statement
    Brochure A            BfileA
    Brochure B            BfileB
    Brochure D            BfileD
    ______________________________________

    ______________________________________
    Modified Database
    Xname        Xaddress         Xversion
    ______________________________________
    Jim          123 Easy St.     Benefits
    Jim          123 Easy St.     BfileA
    Jim          123 Easy St.     BfileB
    Mark         234 Grove St.    Benefits
    Mark         234 Grove St.    BfileB
    Pete         345 Lucky Ln.    Benefits
    Pete         345 Lucky Ln.    BfileD
    ______________________________________

    ______________________________________
    Modified Database
    Xname    Xaddress     Xful1    Xful2   Xful3
    ______________________________________
    Jim      123 Easy St. BfileA   BfileB
    Mark     234 Grove St.
                          BfileB
    Pete     345 Lucky Ln.
                          BfileD
    ______________________________________

    ______________________________________
    Modified Database For Benefits
    Xname  Xaddress   XuniqueID
    ______________________________________
    Jim    123 Easy St.
                      0001
    Mark   234 Grove St.
                      0002
    Pete   345 Lucky Ln.
                      0003
    ______________________________________
    Modified Database For Brochure A (BfileA)
    Xname  Xaddress   XuniqueID  XDollars
    ______________________________________
    Jim    123 Easy St.
                      0001       134.50
    ______________________________________
    Modified Database For Brochure B (BfileB)
    Xname  Xaddress   XuniqueID  XAdvisor
                                        XDollars
    ______________________________________
    Jim    123 Easy St.
                      0001       Dr. Jones
                                        134.50
    Mark   234 Grove St.
                      0002       Dr. Pepper
                                        132.75
    ______________________________________
    Modified Database For Brochure D (BfileD)
    Xname  Xaddress   XuniqueID
    ______________________________________
    Pete   345 Lucky Ln.
                      0003
    ______________________________________

    ______________________________________
    Brochure A     Brochure B
                             Brochure D
    ______________________________________
    BfileA.1       BfileB.1  BfileD.1
    BfileA.2       BfileB.2  BfileD.2
    BfileA.3       BfileB.3  BfileD.3
    BfileA.4       BfileB.4  BfileD.4
    ______________________________________

    ______________________________________
    XName  Xaddress   XFPage1   XFPage2
                                       . . .
                                            XFPage12
    ______________________________________
    Jim    123 Easy St.
                      BfileA.1  BfileA.2
                                       . . .
    Mark   234 Grove St.
                      BfileB.1  BfileB.2
                                       . . .
    Pete   345 Lucky Ln.
                      BfileD.1  BfileD.2
                                       . . .
    ______________________________________

    ______________________________________
    Sheet No. Side No.     Left Side
                                    Right Side
    ______________________________________
    1         1             Page 12 Page 1
    1         2            Page 2    Page 11
    2         1             Page 10 Page 3
    2         2            Page 4   Page 9
    3         1            Page 8   Page 5
    3         2            Page 6   Page 7
    ______________________________________