JPS62182832A - Document printing device - Google Patents

Abstract

PURPOSE:To print plural document data on a form supplied in an optimum style by developing the document data containing plural formats of different document sizes that can be printed on the form supplied to an image memory in response to the printing style. CONSTITUTION:An MPU 4 doubles an address replacement means. A raster image displayed at a CRT display part 1 is developed to an image memory 11. The contents developed to the memory 11 are printed by a printer 10. Then a direct memory access controller DMAC 12 forming a document development means transfers the contents of the memory 11 to the printer 10 by a command given from the MPU 4.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a document printing device that prints document data such as graphics and images, and particularly to a document printing device that performs optimal printing while referring to a format. It is related to.

[Conventional technology]

The printing style in conventional word processors is 7-)
Image information input and edited by the '7' processor is printed using a wire dot, thermal transfer printer, etc. based on code data and text formatting information such as line pitch and character pitch. Therefore, the quality is definitely different from that of printed matter that complies with typesetting rules.

It was only possible to create a "word processing document" with low quality.

However, in recent years, printers with high resolution such as laser beam printers and LED printers have appeared, and furthermore, due to the rapid decline in prices, the speed of 1Bdat/ms has increased.

Addressing is now OT for all points on paper printed at a resolution of 12 dat/mm.

[Problem that the invention seeks to solve]

However, since these devices have a greater degree of freedom than devices that print documents based on code information, the method of loading documents to be printed into memory has become a problem.

In addition, some printing devices themselves can be equipped with multiple paper cassettes or vapor decks, so when printing documents, the printing format must be changed depending on the paper size fed from the installed cassette or paper deck.
Printing may not be efficient due to image clipping or wasted space.
Furthermore, in laser beam printers capable of double-sided printing, paper conveyance and paper ejection control for single-sided and double-sided printing is extremely complicated, and unless the form of printed characters is changed based on the format, the printed matter will be meaningless. There were problems such as .

This invention was made in order to solve the above-mentioned problems. Document data having a plurality of formats with different document sizes that can be printed on fed paper is efficiently expanded into an image memory, and the optimal An object of the present invention is to obtain a document printing device capable of printing in the form of a document.

[F-stage to solve problems]

The document printing device according to the present invention includes an address updating unit that updates, for each document data, a development address of a plurality of document data having different document sizes that can be printed on selected paper;
The apparatus is provided with a document development means for sequentially and cyclically developing each document data in the image memory based on the development address updated by the address updating means.

[Effect]

In this invention, the address updating means sequentially updates the development addresses of a plurality of document data of different document sizes that can be printed on paper to be fed, and the document data is updated based on the sequentially updated development addresses. The expansion means sequentially and cyclically expands the image into the image memory.

〔Example〕

FIG. 1 is a block diagram for explaining the configuration of a document printing apparatus according to an embodiment of the present invention, in which 1 is a CRT display section using a rask scan display method, and 2 is a video RAM (VRA) display section.
In M), pattern development information for one screen is stored. 3 is a display control unit, which controls pattern expansion to VRAM2 and C
R7 Controls pattern reading to the display section 1. 4 is a microprocessor (MP) that collectively controls each unit.
In U), each unit is controlled according to the control program stored in the main memory 5, and information for data processing is written into or read from the work area of the main memory 5. The main memory 5 is composed of a ROM 5a containing a control program, a RAM 5b serving as a work area, and the like.

The MPU 4 also serves as address updating means of this invention.

6 is an external magnetic disk device, which stores document files and the like. Reference numeral 7 denotes a pointing device (hereinafter referred to as FD), which performs input operations for specifying a position on a display screen and selection operations for formatting operations on a formatting screen (menu).

8 is the keyboard, and 69 is the I10 bus, which is used for inputting numerical values for formatting or manually inputting documents.
! = Connect MPU4. Reference numeral 10 denotes a printing device comprising, for example, a laser beam printer, which prints document data displayed in a bitmap on the CR7 display section 1. 11
is an image memory in which the rask image displayed on the CRT display unit 1 is developed, and the contents developed in this image memory 11 are to be printed by the printing device 1o. Reference numeral 12 denotes a direct memory access controller (hereinafter referred to as DMAC) which serves as a document development means of the present invention, and the controller 12 transfers the contents of the image memory 11 to the printing device 1 in response to a command from the MPU 4.
Transfer to o.

FIG. 2 is a block diagram for explaining the configuration of the printing apparatus 10 shown in FIG. 1, and the configuration and operation will be described below.

In this figure, 21 is an image reading means, and printing bag f!
When llo is online, it optically scans the document placed on the platen and reads image information into the image memory 11, and when it is offline, it serves as a reading device for the local copying machine. Image memory 1 when the printing device 10 is online
1 and an image read off-line are converted into electrical signals, which modulate optical signals from a scanner (not shown) of the image forming section 22. Commands for controlling the conveyance of the document and the conveyance of the recording medium are sent to the image forming section 22 and the duplex unit 23 in parallel. The duplex unit 23 selectively inverts the recording medium (hereinafter referred to as recording paper) that has been fed from the paper feeder 24 and on which an image has been formed in the image forming section 22, and feeds the recording paper to the image forming section 22 again. Paper can be fed. The duplex unit 23 is provided with an intermediate tray 23a for temporarily stopping the conveyed recording paper. The paper feeding means 24 is a paper feeding cassette (including an f feeder) that feeds recording paper according to its size.
It consists of a vapor deck, etc. that accommodates a large amount of recording paper. The seven paper discharge stages 25 are comprised of a sorter, a discharge tray, etc., on which double-sided or single-sided copies formed by the single image forming section 22 are placed in order. Note that the image forming section 22 transfers the image onto recording paper by a known electrophotographic process in accordance with the electrical signal output from the image reading means 21.

FIG. 3 is a sectional view of a laser beam printer showing an example of the printing apparatus 10 shown in FIG. 2, and in this figure, the same reference numerals as in FIG. The following describes the configuration and operation of the card.

The image reading L stage 21 has a platen 21a, and an original 21b placed on the platen 21a is scanned by a scanning system (not shown) to read an image. Further, the image forming unit 22 in which the image data in the image memory 11 is processed as an image signal by the MPU 4 includes a registration roller 22a.
, Ray-f22b, Scanner 22c, Optical lens 22
d, a scanning mirror 22e, a photosensitive drum 22f, a conveyor belt 22g, a fixing device 22h, a deflection cam 221, a paper discharge roller 22j, and the like.

The duplex unit 23 includes an intermediate tray 23a, a feed roller 23b, a paper feed roller 23c, a conveyance roller 23d, and the like. Note that Va and Vd each indicate a paper path.

The paper feed stage 24 includes paper feed cassettes 24a, 24b and a vapor deck 24c.

Note that recording paper is fed to the vapor deck 24c from the paper path Vd for the duplex unit 23.

The paper ejection means 25 is composed of a paper ejection roller 25a, a sorter 25b, and a paper ejection bin 25c.The paper ejection unit 25c is configured by a drive means (not shown) of the sorter 25b in response to a signal sent from the control section of the image reading p stage 21. By driving the printer, the ejected recording sheets can be placed in the correct page order.

FIG. 4 is a schematic diagram for explaining the memory map in the main memory 5 shown in FIG. 1. PI is a document data definition section in which text data is stored as code information. P2 is Bunju data ancient style part 1, for example, line pitch, character pitch, non-pull! ? (described later) is included as data. P
3 is a line information table that positions memory and display. For example, data (x++,
12.

X13. ..., yl, etc.) are stored.

Next, print format while referring to FIGS. 5 to 7.

) Functions related to formats such as aiming appearance and their calls to sentence α will be explained.

FIG. 5 is a schematic diagram for explaining part of the data stored in the external magnetic disk device 6 shown in FIG.
31 is a format file table, and format file 32
Decide which file to select. 33 is a document file, which includes a text section 33a that stores actual document data;
It has a format section 33b that stores a format corresponding to the document, and the document file 33
Decide which text or format to select.

FIG. 6 is a schematic diagram illustrating the main text and column definitions of the text section 33a shown in FIG. It consists of a column alignment data definition section, 2 line length data definition sections, 9 column spacing data definition sections, etc. 42 is a text definition section, a 1-character spacing data definition section, and a 9-line feed definition section.

Consists of paragraph indentation data definition section, etc.

FIG. 7 is a diagram for explaining parameters (terms) related to the q equation, and 51 is a display screen, which shows the state displayed on the CRT display unit 1. Reference numeral 52 denotes a printing plate composed of two stages, which is an area to be printed. The printing plate 52 consisting of the areas indicated by the vertical and horizontal arrows is the printing plate of the left page of the double-page spread. ■ indicates the top, ■ indicates the throat, and ■ indicates the position where the bottom of one column is aligned. ■ indicates the number of lines, and ■ indicates the distance between columns. ■ indicates line spacing.

■ indicates the edge. Note that the above items 1 to 2 are determined by the column definition section 41, and the headquarters definition section 42 has data such as character font, number of dots, size, character spacing, character spacing, character width, and color information. .

Next, the mechanisms related to the above-mentioned format will be explained in detail.

[1] Format Registration FIG. 8 is a flowchart explaining the format registration setting procedure. Note that (1) to (6) indicate each step.

When a command to register a format is entered, first the work station (W) consisting of a CRT display section 1 and a keyboard 8 is
Among the various functions of S), a format registration routine starts, and paper information, that is, paper size, paper placement direction, vertical M/horizontal writing, etc., is input (1). Next, as shown in FIG. 9 (2L), the column format information, that is, the plate surface 52 in the sheet FA is determined by inputting two points, for example, the edge, using PO2 (2). Then, as shown in FIG. 9(b), input the number of rows, "2" in this figure, and then specify, for example, the main marking point using the keyboard 8 or PO2 as shown in FIG. 9(C). and step part 1
Specify the column spacing (the steps up to this point complete the column definition specification). Next, it is determined whether or not the input of column format information has been completed.3) If NO, as shown in FIG. Please input headings, etc. 4). If YES, the format file 32 shown in Figure 5 shows the set format.
Register in format files A, B, C, etc. (5).

In this way, the column definition information and text definition can be specified intuitively while viewing the image displayed on the CRT display section 1, so the format can be set very efficiently. In addition,
It goes without saying that more accurate formatting can be performed by numerically displaying the formatting status and format.

[2] Partial correction of registered format Next, the operation of partially correcting the registered format will be explained with reference to FIGS. 1θ and 11.

FIG. 10 is a schematic diagram for explaining the format menu display operation according to the present invention, and shows a multi-window display on the CRT display unit 1 shown in FIG.

FIG. 11 is a flowchart for explaining the operation of partially modifying a registered format according to the present invention. In addition, (1
) to (4) indicate each step.

When partially modifying a registered format, a format menu for calling up the registered format is displayed on a part of the display screen of the CRT display unit 1, for example, as shown in FIG. 10, a format file is displayed. A list, for example, format files A to E, is displayed in a multi-window (1). In addition, format file B is
The content is 'IG', the paper size is [A] version, the type size is rL0 points (not shown), and the number of 9 columns is rlJ.
The case is shown schematically. Next, move the cursor (K in the figure) using PO2 and turn on the PO2 key (not shown) at the desired format, for example, a report in format file A, and the format file A shown in Figure 5 will be displayed. The included format is selected from the format file table 31 and displayed on the CRT display unit 1 shown in FIG. 1 as shown in FIG. 7 (2). And format file A
The format is corrected by changing the image numerically or intuitively using the keyboard 8 or PO2 for parameters such as the line length of the column (3). Next, the corrected format is rewritten in the format file A shown in FIG. 5 (4).

[3] Document formatting Next, referring to FIG. 12, the operation of document formatting according to the present invention will be explained.

FIG. 12 is a flow chart for explaining the formatting operation of a document according to the present invention. In addition, (1), (2
) indicates each step.

When a command for formatting a document is input using the WS, the screen shown in FIG. 10 is displayed on the CR7 display section 1. Note that this screen is displayed superimposed on the current screen even if document processing is in progress. Therefore, in order to make the document easier to view, the mouth shown in the lower right corner of FIG. 10 can be pointed upward with the cursor, and the window can be scaled in accordance with the movement of the cursor. You can also move the entire window by specifying the "format file" part of the title. Therefore, even if the text screen is displayed, the screen shown in Figure 10 can be moved or resized to be displayed in an empty area on the text screen, and the desired format in the window can be easily selected to match the text screen. can.

Now, data n1 of the text section 33a shown in FIG. 5 is displayed on the screen.
With the document displayed, use the keys from the WS to call up the format file list window shown in Figure 10 at any position on the screen and display it. 1) Select the desired format using PO2 and cursor K. , for example, when format file A is selected, format file A shown in FIG.
(2). This removes the formatting of the document currently being processed. And the sentence:
Since the typesetting output in step 7 is performed while formatting the text according to the new format in the document, the document being processed in L is outputted in a completely new 3-format format through the above operations.

[41 Partial change in document format Next, referring to FIG. 13, the document according to the present invention...
The section change operation will be explained.

FIG. 13 is a flowchart illustrating a partial modification operation of a document according to the present invention. Note that (1) to (3) indicate each step.

When partially correcting the format of a document created by formatting the document in [31] described above, read out the document file 33 consisting of the format section 33b and text section 33a using the document file table 341), CR7. Display section 1
If you want to display the document in that format, then modify the parameters related to the format such as 1 column, 1 line length, etc. 2) and register it, create the document file shown in Figure 5. 33 may be newly registered or re-registered (
3).

Next, referring to FIG. 14, document processing 9 according to the present invention
The typesetting process will be explained.

FIG. 14 is a flowchart for explaining the procedure of document processing 9 typesetting processing according to the present invention. In addition, (+
) to (27) indicate each step. Furthermore, the term "document" used here includes image data. Further, to simplify the explanation, explanation of the key controller and the like will be omitted, and it will be assumed that the MPU 4 manages everything.

The MPU 4 waits for an input from the keyboard 8 or P07, etc.l), and when a key is pressed, it judges whether it is a document recall command2), and if it is NO, it shifts to another control, which is directly related to this invention. (Omit explanations without),
If YES, there is no document data in the image memory 11L or the page memory ball (not shown) and the page is blank. In other words, it is necessary to judge whether it is in the initial state 3), YES
If so, proceed to step (5) onwards, and if No, read the document data from the external magnetic disk device 6 etc. onto the memory (00, then the document data 6 developed on the VRAM 2
2 and the editing menu are displayed on the CRT display section 11:, for example, as shown in FIG. 15 (5), C6).
. Next, it waits for a key input from the keyboard 8 or PO2 (7), and determines whether the key input is an instruction to move the cursor (8), and if YES, moves the cursor K.
9) and return to step (7).

- If the judgment in step (8) is No, judge whether the key is a command to instruct the "range specification" key in the menu part 61 using PO2 and arrow AR10), and if YES Then, set cursor K as a range cursor (11) and return to step (7).

On the other hand, if the judgment in step (10) is NO, it is necessary to judge whether the key input in step (7) is an editing command such as line alignment (12), and if YES, each editing command 13), then it is determined whether or not to make a partial correction 14). If YES, the corrected part is redisplayed on the CR7 display section 1 (15), and the process returns to step (7); if NO, the process returns to step (7). Waiting for complete revision order 1B
), once entered, make a full correction and press C on the full correction screen.
It is displayed on the R7 display unit 1 (17), and the process returns to step (7).

- If the judgment in step (12) is No, it is necessary to judge whether the key input in step (7) is a 1B style command18), and if YES, the input format command is not executed. 19), return to step (14) and N
If O, determine whether the key input in step (7) is a layout command 20), if YES, execute the input layout command 21), No
If so, determine whether the key input in step (7) is a print command 22), and if YES, execute the print process 23), return to step (7) and select No.
If so, determine whether the key input in step (7) is a table format command24), if YES, execute table format processing25), return to step (7), and if NO, proceed to step (7). Determine whether the key input is another application selection command (26), and if YES, perform other application processing, such as updating statement-7 (27),
Return to step (1), and if NO, return to step (7).

Securing Memory Next, the relationship between securing the image memory 11 and the printing apparatus 10 according to the present invention will be explained with reference to FIGS. 16(a) and 16(b).

FIGS. 16(a) and 16(b) are diagrams for explaining the relationship between securing the image memory 11 and the printing device 10 according to the present invention. In these diagrams, W indicates the scan width determined from the paper size. , H indicates the number of scanning lines determined from the length of the paper.

Normally, as shown in FIG. 16(a), the image memory 1 has a memory area corresponding to the scan width W and the number of scan lines H (1-H) according to the paper size set in the formatting.
], and the DMAC 12 develops the image data in the order of 1 to H in the direction indicated by the arrow.

On the other hand, in double-sided or double-sided printing, etc., the final image will not be obtained unless the image is rotated according to the binding margin position or paper conveyance direction, so the scan width W according to the paper size set in the format settings After securing a memory area of H and the number of scanning lines in the image memory 11,
), the DMAC 12 is W, W-t,...
・, 1, and unfold in the opposite direction to that shown in FIG. 2(a).

Developing the document data Next, Figure 17 (a), (b) and Figure 18 (a), (
The document data development operation according to the present invention will be explained with reference to b).

17(a) and 17(b) are schematic diagrams illustrating the document data development operation according to the present invention, and in FIG. 17(a), the short width direction of the paper is conveyed perpendicular to the paper conveyance direction 71. The state of transfer to the image memory 11 is shown in FIG.
) shows the state of transfer to the image memory 11 when the longitudinal direction of the paper is conveyed perpendicularly to the paper conveyance direction 71.

Figures 18(a) and (b) are Figure 17(a).

FIG. 6 is a schematic diagram illustrating the memory expansion coordinates shown in FIG.
a and Wb indicate the scan width.

As can be seen from this figure, the development address AD+ (xa
, yb), when the longitudinal direction of the paper is conveyed perpendicular to the paper conveyance direction 71, the scan width Wa is changed to the scan width wb, and the scan width Ha is changed to the scan width)(b). The expansion address AD+ (xa, yh) is 90
'Rotated expanded address AD2 (xb, ya
).

However, xb = Wb - Ya, yb = xa
By controlling the development address in the paper transport direction 71 in this way, the printed matter is printed in the paper transport direction 7]
The same image can be formed regardless of the

Document data page) J<Open Next, the operation of opening page R to the image memory 11 according to the present invention will be explained with reference to FIGS. 19(a) and 19(b).

FIGS. 19(a) and 19(b) are schematic diagrams for explaining an example of the page development operation according to the present invention, and show, for example, a case where two pages of document data are developed in a page area corresponding to one page. It is.

In the same figure (a), 81.82 is the sentence g data, and the scan width Wo (
Wl + W2), which shows the document data 81.82 expanded in the memory area secured by the scanning width Ho,
In the same figure (b), 83 is document data, address O
From the point moved from to 01, scan width W6 (W
2 +wl ), which shows the state in which document data 83 and document data 84 are developed in the memory area secured by the scanning width Ho. Note that the document data 84 is document data obtained by removing the scan width WI from the document data 81.

As can be seen from these figures, when the format settings specify the development of multiple pages with different formats, document data that can be printed on the selected paper size, for example, when the paper size is A3 and the number of documents is 2” is specified,
As shown in FIG. 19(a), the image memory 111
: from address O to scan width WO (Wl +W?),
A storage area is secured for the number of scanning lines Ho. At this time, when the left page is to be developed, that is, when the document data 81 is to be developed, the page is clipped with the scan width W1 and the number of scanning lines HO using the address O as a reference point, and is developed in the image memory 11. Next, when the page on the right side is to be developed, address 0, which was the reference for development, is updated to address o1, which is obtained by adding the scan width WI, and the document data 82 is developed based on address 01. At this time, an area is secured in the image memory 11 starting from address 01 on the image memory 11 with scan width Wo (w, +W2), number of scan lines) (half scan width less than the area secured with 0. , in the same process as described above, that is, using the address 01 as a reference point, clipping it with the scan width Wl and the number of scan lines Ho, and developing it in the image memory 11, the document data 82 is generated as shown in FIG. 19(b). 81° is unfolded. When performing single-bag binding printing, the scan width Wl and the scan width W2 may be made equal. Also, if the unfolding direction is 90° to the right.
If it is rotated by °, it is sufficient to develop the document data 81 and 82 as shown in FIG. By updating the address by the amount specified by the scanning width, document data with a different format can be developed into the image memory 11, so when outputting document data, the image can be accurately created based on the format. It can be transferred to the printing device 10.

Double-sided printing control Next, the printing form during double-sided printing or double-sided printing will be explained with reference to FIGS. 20(a) and 20(b).

FIGS. 20(a) and 20(b) are schematic diagrams for explaining the printing form during bag binding or double-sided printing according to the present invention,
Components that are the same as those in FIG. 7 are given the same reference numerals.

Figure (a) shows the printing form during bag binding printing.
The left side shows the numbered pages, the right side shows the even numbered pages, the dotted line shows the folding edge, tl, t2 are the headers from the folding edge (
column) indicates the position, t3.

t4 indicates the non-pull (page number) position from the folding edge.

Figure (b) shows the printing form during double-sided printing, where the left side shows the front side, the right side shows the back side, Sl+52 shows the header (column) position, and S3.

s4 indicates a non-pull (page number) position.

When performing double-stitch printing, the position of the printing plate 52 on the paper FA (position of the fore edge ■) for sound number pages and even number pages.
, header position tl +t2 *'embru position L3
, ta must be positioned so that the left and right sides are symmetrical with respect to the folding edge. For this reason, when formatting is done, the DMAC12 will
The document data development position in the image memory 11 is controlled to be developed at a predetermined position, that is, the position shown in FIG. 20(a).

In addition, when double-sided printing is performed, for sound number pages and even number pages, the position of the printing plate 52 of the paper PAJz (position of the fore edge ■), the header position ms+, s2, the non-pull position s3. s
If 4 is front or back, it must be placed in the reverse position. Therefore, when formatting is performed, the DMAC 12 sets the document data development position in the image memory 11 to a predetermined position for odd-numbered pages and even-numbered pages, that is, as shown in FIG.
Control is performed so that it is expanded to the position shown in b). Note that the explanation and the vertical conditions are omitted.

FIG. 21 is a flowchart for explaining the bag binding printing control operation according to the present invention. In addition, (1) to (11
) indicates each step.

First, determine whether the page to be expanded is an odd numbered page (1), and if YES, move the position of the printing plate 52 from address 0 of image memory ill to fore edge position (2).
0 Next, find the length h) of the header string (3)
. Next, the header character string is expanded from the address 0 by subtracting the header character string length h) from the scan width W1 and the length for the header position t1 (4).

Next, find the length of the non-pull character string (m) (5)
. Next, from address 0, a non-pull character string is developed from a position obtained by subtracting the length of the non-pull character string (m) from the scan width W1 and the length of the non-pull position S1 (6
). Next, the document data in the printing plate 52 is developed into the image memory 11 (7).

Perform printing (8).

On the other hand, if the judgment in step (1) is No, that is, if it is an even page, the position of the printing plate 52 is moved from address 0 on the image memory 11 to header position t2 (9) 0. 11 Expand the header character string from the address 0 on the image memory 11, adding the throat position n (10), then expand the non-pull character string from the address 0 on the image memory 11, adding the non-pull position t2. (11) and return to step (7). It goes without saying that double-sided printing can also be controlled in the same way if the determination in step (1) is made based on whether or not it is the front side.

Next, the relationship between the binding margin position and the development of document data during double-sided printing will be explained with reference to FIGS. 22(a) and 22(b).

FIGS. 22(a) and 22(b) are schematic diagrams illustrating the relationship between the binding sheet position l and the development of document data during double-sided printing according to the present invention. In FIG. 22(a), FAI is This is a case where the binding margin is provided on the left side in the longitudinal direction of the paper. PA2 indicates the back side of another page, and the binding margin position is on the right side with respect to the paper length f direction so as to match the binding margin of the first surface PA1.

In FIG. 3B, PA3 shows the surface of the double-sided sheet, and the binding margin is provided on one side in the width direction of the sheet. PAa
indicates the back side of another page, and the binding margin position is on the lower side with respect to the longitudinal direction of the paper so as to match the binding margin of the front side PA3.

As can be seen from these figures, when document data is developed in the image memory 11 according to the direction of binding during double-sided printing, on the front and back sides, that is, according to the binding margin position set in the format, When the format shown in figure (a) is set, the document data is transferred to the image memory 1 in the same direction.
1 and the format as shown in FIG.
It is controlled by AC12.

Next, with reference to FIGS. 23(a) to 23(d), the document data expansion operation depending on the paper conveyance direction and the binding margin position according to the present invention will be described.

23(a) to 23(d) are schematic diagrams illustrating the document data expansion operation depending on the paper conveyance direction and the binding margin position according to the present invention. In FIG. 23(a), 91a indicates the surface of the paper. The image is formed by being conveyed in the direction of the arrow Q+force. 91b indicates the back side of the paper and corresponds to the front side 91a. The fist indicates the binding hole. Further, arrow Q2 indicates a state in which the front surface 91a is fed from the intermediate cassette 23a shown in FIG. 3.

In FIG. 9B, 92a indicates the front surface of the paper, which is conveyed in the direction of arrow Q1 and an image is formed on the paper. 92b indicates the back side of the paper and corresponds to the front side 92a. The fist indicates the binding hole. Further, arrow Q2 indicates a state in which the front surface 91a is fed from the intermediate cassette 23a shown in FIG. 3.

In FIG. 9C, 93a indicates the surface of the paper, which is conveyed in the direction of the arrow Q+force and forms an image thereon. 93b indicates the back side of the paper and corresponds to the front side 93a. In addition,·
indicates the binding hole. Further, arrow Q2 indicates a state in which the front surface 91a is fed from the intermediate cassette 23a shown in FIG. 3.

In FIG. 9D, 94a indicates the surface of the paper, which is transported in the direction of the arrow Q+force and an image is formed on the paper. 94b indicates the back side of the paper and corresponds to the front side 94a. The fist indicates the binding hole. Further, arrow Q2 indicates a state in which the front surface 91a is fed from the intermediate cassette 23a shown in FIG. 3.

As can be seen from these figures, depending on the binding sheet position (binding hole position) and conveyance direction, the optimal double-sided printing format cannot be obtained unless the document data is rotated when developing the document data to the image memory 11. , when the binding margin is yE as shown in FIG. For example, in Fig. 16 (b), rotate the
) controls memory expansion.

Next, a paper feed selection control operation based on formatting according to the present invention will be described with reference to FIG.

FIG. 24 is a flowchart illustrating an example of a paper feed selection control operation procedure based on formatting according to the present invention.

Note that (1) to (18) indicate each step. Paper is fed from paper feed cassettes 24a, 24b or paper deck 24c shown in FIG.
From a and 24b, there are vertical feeding in which the longitudinal direction of sheets of the same size coincides with the transport direction, and horizontal feeding in which the lateral direction of sheets of the same size coincides with the transport direction.

First, the paper size and document orientation determined in the formatting stage, that is, information on whether to place the short side down or the long side down, are extracted (1). Next, determine whether the paper size you took out is a standard size (A3, B4, etc.).
If YES, select f paper feed (3), if YES, determine whether the manual feed tray is empty 4),
If so, proceed to step (6) and onwards, and if YES, determine whether there is a paper feeder (24a, 24b) or paper deck 24c loaded in addition to the f insert5).
If YES, the process returns to step (3); if YES, it is determined whether a paper feed cassette that matches the set paper size is installed (8); if YES, the paper is further stored in the paper deck 24c. Please check whether the paper size is the paper size selected in the format settings 7), YE
If S, the paper deck 24c is selected (8), and if No, it is determined whether a cassette corresponding to the direction in which document data is to be developed in the image memory 11 is loaded (3).

If this judgment is YES, it is determined whether the cassette that matches the unfolding direction is the paper feed force sensor) 24a, the upper cassette (10), and if YES, the upper cassette is selected (11). ), if NO, the lower cassette is selected (12).

On the other hand, if the determination in step (8) is No.

It is determined whether the paper size of the upper cassette matches the formatted paper size (13); if YES, the upper cassette is selected (14); if NO, the lower cassette is selected (15). With this control, even if the paper cannot be transported in a direction that matches the development direction, document data is developed in the image memory 11 in the process described above so that an image can be optimally formed on the paper stored in the paper feed cassette. Since it can be controlled, images can be formed without any troublesome operations.

On the other hand, if the determination in step (6) is NO.

It is determined whether the paper deck 24c is installed (16), and if YES, the paper deck 24c is selected (17), and if No, the upper cassette is selected (18).
).

Although this paper selection control has been described as an example in which paper is fed preferentially from the paper deck 24C, the present invention is not limited to this. For example, the first paper feed is from the paper deck 24c, and the second paper feed is from the paper deck 24c.
Paper can also be fed by setting an arbitrary priority order, such as from 24a onwards. This paper selection flow is performed in parallel with the document data development operation in the image memory 11.

〔Effect of the invention〕

As described above, the present invention includes an address updating means for updating the expanded address of a plurality of selected document data of different document sizes for each document data, and a Since document development means is provided that sequentially and cyclically develops the document data in the image memory, multiple 1! Sentences having the I format: Since the given data can be developed in the image memory according to the print format jE, a plurality of sentences 9 data can be printed on paper fed in the optimal format. Further, since document data based on a format can be printed on paper according to the priority order, it has excellent advantages such as greatly improving throughput.

[Brief explanation of drawings]

FIG. 1 is a block diagram for explaining the configuration of a document printing device showing an embodiment of the present invention, FIG. 2 is a block diagram for explaining the configuration of the printing device shown in FIG. 1, and FIG. 3 is a block diagram for explaining the configuration of the printing device shown in FIG. is a cross-sectional view of a laser beam printer showing an example of the printing device shown in FIG. 2, FIG. 4 is a schematic diagram illustrating the memory map in the main memory shown in FIG. 1, and FIG. FIG. 6 is a schematic diagram for explaining part of the data stored in an external magnetic disk device, FIG. 6 is a schematic diagram for explaining the text and column definitions of the text section shown in FIG. 5, and FIG. FIG. 8 is a diagram illustrating format-related parameters and a flow chart illustrating format registration setting procedures. FIG. 9 is a schematic diagram for explaining the format registration setting operation, FIG. 10 is a schematic diagram for explaining the format menu display operation according to the present invention, and FIG. 11 is a schematic diagram for explaining the operation for partially modifying a registered format according to the present invention. Flowchart for explaining, 12th
FIG. 13 is a flowchart explaining the operation of formatting a document according to the present invention, FIG. 13 is a flowchart explaining the operation of partially changing a document according to the present invention, and FIG. 14 is a document processing 1 typesetting process according to the present invention. 15 is a schematic diagram illustrating the document processing 9 typesetting process, and FIGS. 16(a) and 16(b) show the relationship between securing the image memory and the printing device according to the present invention. Figures 17(a) and 17(b) are schematic diagrams illustrating the document data expansion operation according to the present invention, and Figure 18(a) is an explanatory diagram.
. (b) is a schematic diagram illustrating the memory development coordinates shown in FIGS. 17(a) and (b), and FIG. 19(a). 20(b) is a schematic diagram for explaining an example of the page unfolding operation according to the present invention, and FIGS. 20(a) and 20(b) are schematic diagrams for explaining the printing form during double-sided printing or double-sided printing according to the present invention. , FIG. 21 is a flowchart for explaining the bag binding printing control operation according to the present invention, FIG. 22(a),
23(b) is a schematic diagram illustrating the relationship of development of document data for each binding page during double-sided printing according to the present invention; FIG. 23(a)
- (d) are schematic diagrams illustrating the document data expansion operation depending on the paper conveyance direction and the binding sheet position according to the present invention;
FIG. 4 is a flowchart illustrating an example of a paper feed selection control operation procedure based on formatting according to the present invention. In the figure, 1 is a CRT display section, 2 is a VRAM, 3 is a display control section, 4 is an MPU, 5 is a main memory, 6 is an external magnetic disk device, 7 is an FD, 8 is a keyboard, 10 is a printing device, 1
1 is an image memory, and 12 is a DMAC.゛I-し'、」、）、、、! Figure 2n Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 (a) (b) (c) (d) Figure 10 Figure 11 Figure 12 Figure 13 Figure 15 Figure 16 Figure 17 (a) (b) Figure 18 (a) (b) Figure 19 Figure 20 S2 S2 Figure 21 Figure 22 (a) (b)

Claims (3)

[Claims] (1) In a document printing device that develops document data into an image memory based on a preset document format and prints an image according to the developed document data, there are different document sizes that can be printed on selected paper. address updating means for updating the expansion address of a plurality of document data for each document data; and document expansion means for sequentially and cyclically expanding each document data in the image memory based on the expansion address updated by the address updating means. A document printing device comprising: (2) The document printing apparatus according to claim 1, wherein the image memory develops the document data in a certain area based on the updated development address. (3) The document printing device according to claim (1), wherein the document data developed by the document development means is double-sided binding or double-sided printing data.