JPS63125352A - Printing data control system - Google Patents

Abstract

PURPOSE:To allow a user to arbitrarily file a printing system in either one of a top-binding system and a side-binding system, by indicating the binding position and front or back surface printing of paper and controlling the development of printing data on a full dot memory and the feed-out order thereof from the full dot memory to a printing part on the basis of indication. CONSTITUTION:A flag showing the front and back of a page is contained in printing data and set to a page front and back flag register 102. Paper binding position data composed of top-binding, side-binding, the width of a blank part or the like are stored in a paper binding position data register 103. A character contraction operator 104 operates contraction quantity for contracting a character vertically or horizontally on the basis of paper binding position data. This contraction quantity is sent to a character contraction device 105 and printing data are contracted vertically or horizontally. The printing data passing through the character contraction device 105 are developed on a full dot memory (FDM) 107 under the control of an FDM developing address operator 106 and read under the control of an FDM reading address operator 108 to be sent to a printer 109.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control system for print data, and in particular, to a printing device that develops print data into a full dot memory and prints it on both sides of paper. The present invention relates to a control method for writing and reading print data into a full dot memory, which is suitable for filing with top binding, horizontal binding, etc.

[Conventional technology]

As a conventional single-sided printing device, for example, Japanese Patent Application Laid-Open No. 56-99
The one described in Japanese Patent No. 585 is known. This has two sets of full dot memory and printing units for the front and back sides, and the front side print data sent from the host is developed into the first full dot memory and printed on the front side of the paper. The second printing unit is arranged to send the paper to the first printing unit arranged to print it, and similarly, the back side printing data is expanded to the second full dot memory and printed on the back side of the paper. It will be sent to and printed.

[Problem that the invention seeks to solve]

In double-sided printing, as in single-sided printing, when filing the print results, for example, there are cases in which it is desired to bind on the top side and cases in which it is desired to bind on the side. However, in the conventional technology, the print data sent from the host is simply developed into a full dot memory, sent to the print unit in the order in which it was sent, and printed, and the user files the print results. There was a problem in that the user could not file the print results in any way he or she wanted. Furthermore, in the above conventional technology, it is necessary to prepare two sets of full dot memory and printing units for the front and back sides.
There is also a problem in terms of cost.

An object of the present invention is to provide a printing device that develops print data into a full dot memory and prints it on both sides of paper, allowing the user to file the print results in any method such as top binding and horizontal binding.I: One object is to provide a print data control method that realizes this with a set of full dot memory and a printing section.

[Means for solving problems]

When double-sided printing of print data such as text or a single graphic image is performed, the present invention specifies the binding position of the paper and front or back printing, and based on this, the print data is expanded to the full dot memory and the print data is It is characterized by controlling the sending order from the dot memory to the printing section.

[Operation] For example, in the case of front side printing with top binding, the print data is expanded into the full dot memory with a blank space at the top for the binding position, and then read out in order from left to right and top to bottom. Send to printing department. In the case of backside printing with top binding, a blank space is provided at the bottom for the binding position, the print data is developed into a full dot memory, and this data is read out in order from left to right and from top to bottom.

For example, in the case of front-side printing with left side binding, print data is developed with a blank space on the left side corresponding to the binding position, and is read out in order from left to right and from top to bottom. In the case of left side binding and printing on the back side, a blank space is provided on the right side for the binding position, the print data is developed in a full dot memory, and this data is read out in order from right to left and from bottom to top.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a block diagram of an embodiment of a print control device according to the present invention. Print data such as characters and one graphic image sent from a host is stored in a print data register 101. The print data includes a flag indicating the front and back sides of the page, and the flag is stored in the page front and back flag register 10.
Set to 2. On the other hand, paper binding position information register 1
03 stores paper binding position information including top binding, horizontal binding, blank area width, and the like. This paper binding position information is set by the user. The character reduction calculator 104 calculates the amount of reduction to reduce the character vertically or horizontally based on the paper binding position information in the register 103.

This reduction amount is sent to the character reducer 105 and is 2N.

The print data in the print data register 101 is reduced vertically or horizontally. The print data that has passed through this character reducer 105 is developed into a full dot memory (FDM) 107 under the control of an FDM development address calculator 106.
The print data developed in 7 is FDM i! l! The output address is read out under the control of the output address calculator 108 and sent to the printing device 1.
Sent to 09. The FDM expanded address arithmetic unit 106 uses a page front/back flag register 102. The paper binding position information register 103 calculates how print data is to be developed on the FDM 107. Similarly, the FDM read address calculator 108 uses the page front/back flag register 102 and the paper binding position information register 103 to
The print data 101 developed in M107 is sent to the printing device 1.
1109, the order of sending is calculated.

Next, when the print data in the print data register 101 is for top binding, horizontal binding, or both sides of the paper.

How the data is developed in the FDM 107 and sent to the printing device 109 will be explained using FIG. 2.

(a) If the front side is top-stitched, leave the top side blank for the binding position and send it to FDM203.
The expanded print data 204 is expanded by vertical reduction.
are sent to the printing device 109 according to the reading order 201 and the line order 202.

(b) In the case of top binding and back side, leave the bottom side blank for the binding position and send it to FDM203.
The print data 204 that has been expanded by vertical reduction is sent to the printing device 109 in accordance with the reading order 2o11 line order 202.

(c) In the case of horizontal binding and front side, leave the left side blank for the binding position and send it to FDM203.
The print data 204 that has been expanded by horizontal reduction is sent to the printing device 109 according to the reading order 2011 and the line order 202.

(d) In the case of horizontal binding and back side, leave the right side blank for the binding position and send it to FDM203.
The print data 204 that has been expanded by horizontal reduction is sent to the printing device 109 in accordance with the reading order 201 and the line order 202.

FIG. 3 shows a schematic configuration of the printing device 109. Following the paper feeding direction 302, toner is first transferred to the surface of the paper 303 from the rotating drum 304, and then the toner is transferred to the surface of the paper 303 by the fixing device 3.
Fixed by 06. After that, the paper 303 is sent toward the paper reversing unit 301 by the paper feed direction changer 3.05, where the front and back sides are reversed, and the toner is transferred to the back side by the rotating drum 304, and then transferred to the fixing device 306. It is fixed well and then discharged.

FIG. 4 shows the printing results corresponding to FIGS. 2(a) to (d), where 401 is the printing result, 402 is the paper feeding direction, and 403 is the scanning direction of the optical system (for example, a laser beam scanner). be. In other words, in the case of top stitching, the first page is as shown in Fig. 2(a).
The print data read out from the FDM in the order of 201 and 202 is printed on the front of the paper as shown in 401-(a),
after that.

The paper is reversed along the feeding direction, and the paper is turned over to the front and back sides, as shown in Figure 2 (b).
) The print data read out in the order of 201 and 202 is printed on the back of the paper as shown in 401-(b). In the case of left side binding, the print data read out from the FDM in the order of 201 and 202 in FIG.
The paper is printed as shown in 1-(Q), and then the paper is turned over along the feeding direction, and the paper is printed as 201 and 20 in FIG. 2(d).
The print data read in the order of 2 is printed on the back of the paper 401
-Printed as shown in (d).

FIG. 5 is a diagram illustrating reduction of print data.

In FIG. 5(B), a register 501 stores horizontal reduction information (HI), and a register 502 stores vertical reduction information (HI).
VI) is stored. Further, the register 503 stores top binding and horizontal binding information. Based on the register 503, the discriminator 50 determines which of the registers 501 and 502 is to be used.
4 and sends HI or VI to the character reducer 105 together with the print data in the print data register 101. In the character reducer 105, as shown in FIG.

The string of black bits in the VI data is thinned out from the character data to create vertically and horizontally reduced character data.

FIG. 6 is a diagram illustrating an example of the configuration of the FDM expansion address calculator 106 and expansion of print data to the FDM 107.

xl is a blank area for horizontal binding.

Yl indicates a blank area in case of vertical binding.

The clock operates at the timing when one piece of print data is written to the FDM. The X counter (1) 602 is
Each time the clock is input, it counts up by 1 from xl, and when it reaches X, it is reset.

The X counter (2) 601 counts up by 1 each time a clock is input from 0, and is reset when it reaches (X-Xi). The Y counter 603 is a counter from 0 to an X counter (
2) Count up every time 602 becomes X,
It is reset when it reaches Y. The X counter 604 counts up by 1 each time a clock is input from 0, and is reset when it reaches X. Y counter (1) 605 is Y
Every time the X counter 604 reaches X, it counts up by one, and when it reaches Y, it is reset. The Y counter (2) 606 counts up by 1 each time the X counter 604 reaches X from 0, and (Y-Yl)
It will be reset when

The discriminator 607 determines the X counter (1) 602 and the X counter (
2) Determine which value of Y counter (1) 605 or Y counter (2) 606 is to be enabled. The discriminator 608 determines which counter value is valid based on the register 610 in which top stitching and horizontal stitching information is stored. The output of this discriminator 608 is FDM
Deployment address roar.

FIG. 7 is a diagram illustrating an example of the configuration of the FDM successive address calculator 108 and reading of print data from the FDM 107. Clock 1 operates at the timing to transfer one word from the FDM, and clock 2 operates at the timing to start one raster. The H-up counter 701 counts up by 1 each time a clock 1 is input from 0.
It is reset when it becomes H. The H down counter 702 counts down by 1 every time clock 1 is input from H, and is reset when it reaches 0. (2) The up counter 703 counts up by 1 each time clock 2 is input from 0, and is reset when it reaches (2). ■
The down counter 704 counts down by 1 each time clock 2 is input from ①, and is reset when it reaches 0. To determine which of these up counters and down counters is to be enabled, a register 708 that stores page front/back, top binding, and horizontal binding information is used to create and store switch information for selecting either a or b. 7
05, the switch circuit 709 operates to set the H counter value and V counter value selected by the switch circuit 709 in the H counter 711 and V counter 712, and read data from the FDMI07.

One word of data read from the FDM 107 first enters a buffer 706 , then the one word of data is rotated and put into an inversion buffer 707 . Which one is sent to the printing device 109 is determined by the operation of the switch circuit 710 using the register 705 . For example, 401 in Figure 4
- Select a in the case of -(a), 401 (b), and 401- (c), and select b in the case of 401-(d).

〔Effect of the invention〕

As explained above, according to the present invention, double-sided printing can be performed so as to satisfy the file method required by the user.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a diagram illustrating the expansion of print data into a full dot memory and the reading order according to the present invention, and FIG. 3 is the printing apparatus of FIG. 1. 4 is a diagram showing an example of the print result, FIG. 5 is a diagram illustrating reduction of print data, and FIG. 6 is a diagram showing the FDM of FIG. 1.
FIG. 7 is a diagram showing an example of the structure and operation of the expanded address calculator. FIG. 7 is a diagram showing an example of the structure and operation of the FDM read address calculator in FIG. 101...Print data register, 102...Page front/back flag register. 103...Paper binding position information register, 104...
Character reduction operator, 105...Character reduction unit, 1
06...FDM expansion address calculator. 107...Full dot memory (FDM), 108...
...FDM read address calculator, 109...printing device. Fig. 2 Fig. 3 Fig. 4 1 =) Fig. 5 (A) (B) Fig. 6 (A) (I3)

Claims (1)

[Claims] (1) In a printing device that develops print data into a full dot memory, reads it out, and prints on both sides of paper, a means for instructing front-side printing or back-side printing and a means for storing paper binding position information are provided. 1. A print data control method characterized by controlling development of print data into a full dot memory and the order of sending the print data from the full dot memory to a printing unit based on the contents of the means.