JPS6349433A - Perfect printing control system - Google Patents

Abstract

PURPOSE:To enable perfect printing for data quickly and flexibly by designing the subject system in such a way that data which is to be printed is read from four directions, top, bottom, left and right, and a printing position can be set variably in accordance with a printing data format which is transferred from a host device. CONSTITUTION:An access adjustment/data editing part 36 designates a scan direction in which an image information memory 32 for storage of image information to be printed in four directions such as top, bottom, left and right according to the contents of settings to a format setting part 34. Then the part 36 composes and outputs the image information which is read from the image information memory 32 as a video signal to be transmitted to a laser light emitting means. A printing position setting means 37 variably designates a position in which an output of the image information memory 32 is printed on a paper, in accordance with the content of a binding allowance designation/ storage means 35. Thus perfect printing for data can be performed quickly and flexibly.

Description

[Detailed Description of the Invention] [Summary] A double-sided printing control method in a printing device, in which printing transferred from a host device is Depending on the data format, print data up or down.

By configuring the device so that it can be read from four directions (left and right) and the print position can be variably set, it is possible to quickly and flexibly print data on both sides.

[Industrial application field]

The present invention is one of various printer devices used in a double-sided printing control method information processing system in a printing device.
Non-impact laser printer devices that are capable of high-quality printing in a short time have been put into practical use.

On the other hand, currently, single-sided printing is the main type of printing performed by laser printers, etc., but with the expansion of the amount of print data processed at a time, double-sided printing is now possible even with such laser printers. Implementation is now strongly desired.

[Prior Art] FIG. 6 is a diagram explaining how to bind double-sided printing paper, FIG. 7 is a diagram explaining a double-sided printing format, and FIG. 8 is a schematic configuration diagram explaining a conventional printing device. .

The laser printer device shown in FIG. 8 shows a configuration for printing data only on one side of a sheet of paper. The laser printer device shown in FIG. A hopper 1 that feeds printed paper (DL), a stacker 2 that stores printed paper (DL), a control unit 3 that controls printing processing operations within the laser printer device, and a laser that responds to the video signal output from the control unit 3. A laser emitting section 4 that generates light, and a photosensitive drum 8 that rotates and reflects the laser light emitted from the laser emitting section 4.
a rotating mirror part 5 that scans the photosensitive drum 8; a photodetector 6 that detects when the reflected laser beam reaches a predetermined position when reflected by the rotating mirror part 5 and scans the photosensitive drum 8; A drum motor 7 that serves as a driving source for rotating the photosensitive drum 8; a photosensitive drum 8 that creates a latent image of image information on a charged photosensitive band on its surface by scanning with reflected laser light; and the photosensitive drum 8. The image forming apparatus is configured to include a developing device 9 that develops the latent image formed on the sheet with toner or the like, and a transfer device 10 that transfers the image information developed by the developing device 9 onto a sheet of paper.

A host device (
When the print command and print data (not shown) are transferred, the control circuit 3 stores the image information memory 32 in the control unit 3.
Stored via 1.

The print data (2) stored in the image information memory 32 can be stored in an amount equivalent to one page of paper.

The control unit 3 turns on the drum motor 7 and other components in accordance with the print command to prepare for print processing.

At the same time, when print data corresponding to one page of paper is stored in the image information memory 32, the print data is organized and temporarily stored in the register 33, and sent to the laser emitting unit 4 as a video signal ■. .

The laser emitting unit 4 irradiates the photosensitive drum 8 with a laser beam emitted in response to the video signal (2) via the rotating mirror part 5, and creates a latent image while scanning the rotating photosensitive drum 8. Print image information on paper.

[Problem that the invention seeks to solve]

In the case of single-sided printing, which is performed as described above, the printing start position and format are set in one format in advance, but in the case of double-sided printing, as shown in Figure 6, the printing start position and format are determined by the binding method of the paper. It is necessary to change the print start position.

In other words, if you take a "binding margin" on the horizontally long side as shown in Figure 6 (A) and start printing from the "binding margin" side,
When printing from the opposite side of the "gutter" side with a "gap margin" on the horizontal side as shown in B), take the "gap margin" on the vertical side as shown in Figure 6 (C) and print from one side. Depending on the case where printing is performed from the "binding margin" side, and one printing is performed from the opposite side of the "binding margin" side, it is necessary to change the printing start position and the horizontal direction of the printing start.

Furthermore, the printing directions corresponding to FIGS. 6(A), (B), and (C), especially the vertical direction (printing in the direction of the arrow), are as shown in FIGS. 7(A), (B), and (C). may be printed on. Note that the "binding margin" is the shaded area.

In the laser printer device described above, there is a method that changes the printing start position and printing direction according to the duplex printing format, and can flexibly and quickly respond to the specified duplex printing format. The current situation is that it has not been put into practical use at present.

[Means for solving problems]

FIG. 1 shows a block diagram illustrating the invention in detail.

The principle block diagram shown in FIG. 1 shows the principle block of the control section in the laser printer device explained in FIG. 8, and its configuration includes the control circuit 311 explained in FIG. a format designation setting unit (format designation setting unit) 34 for storing double-sided printing format designation content in the print data format to be printed; a gutter designation storage unit (register) 35 for storing binding margin designation content; The scanning direction for reading out the image information memory 32 to be stored is set by format designation setting means (format designation cent part) 3.
Access arbitration/data organization that specifies four directions (up, down, left and right) according to the set contents to 4, and organizes and outputs the image information read from the image information memory 32 as a video signal to be sent to the laser emitting means. Means (access mediation/
a data organization unit) 36; a print position setting unit (counter) 37 that variably specifies the position at which the output of the image information memory 32 is printed on the paper in accordance with the contents of the binding margin specification storage unit (register) 35; The access arbitration/data organization section (access arbitration/data organization section) 36 is accessed in response to the output signal from the print position setting section (counter) 37 to control the reading of image information stored in the image information memory 32. Read control unit 38
and a reversing mechanism control means (reversing mechanism control unit) 39 that controls the operation of a reversing mechanism that performs reversing of the paper from the back side to the reverse side according to the read processing operation.

In addition, as the transfer order of the print data transferred from the host device (not shown), the duplex printing format is specified, the binding margin corresponding to the specified content of the duplex printing format is specified, and the image to be printed is specified. It is defined as being transferred in the same order as the information.

[Effect]

When double-sided printing is instructed from a host device, information specifying the print format of the print data transferred from the host device in the order of the newly defined print data format and the "binding margin" of the paper are stored in each. The image information stored in the image information memory 32 is read out from four directions, top, bottom, left and right, and the print position can also be set variably according to the print format and "gap margin" specification. By doing so,
Double-sided printing of print data (2) can be performed quickly and with flexibility.

〔Example〕

The gist of the present invention will be specifically explained below with reference to embodiments shown in FIGS. 2 to 5.

FIG. 2 is a block diagram explaining the present invention in detail, FIG. 3 is a diagram explaining the order of transfer printing information in an embodiment of the present invention, and FIG. 4 is an overview of the configuration of a laser printer device in an embodiment of the present invention. FIG. 5 is a diagram illustrating a reversal situation of a sheet in an embodiment of the present invention. Note that the same reference numerals indicate the same objects throughout the figures.

FIG. 2 is a block diagram showing an embodiment of the control section 30 of a laser printer device that performs double-sided printing according to the present invention.

The format specifying section 34 in the control section 30 in this embodiment includes a decoder 34a that decodes the address (2) of the image information memory 32 and sends out a decoded signal;
The host device (not shown) responds to the decoded signal from
Set the print data ■ transferred from the flip-flop (hereinafter referred to as F/F) 34b that controls up/down of the address counter 36b, and also set the print data ■ according to the decode signal. It includes an F/F 34c that controls the shift direction (horizontal direction) of the shift register 36c.

The access arbitration/data organization section 36 also includes an access arbitration circuit 36a that arbitrates access to the image information memory 32, an address counter 36b that specifies the access address of the image information memory 32 when writing print data, and an access arbitration circuit 36a that arbitrates access to the image information memory 32; A shift register 36c is provided, which shifts the image information read from the F/F 34c in a designated left/right direction, organizes it into a video signal (2), and sends it out.

Note that the register 37 corresponds to a binding margin specification storage means, and stores the "binding margin" transferred from a host device (not shown).
Stores specified information.

Further, the counter 37 corresponds to a print position setting means, and cents the "binding margin" designation information stored in the register 37.
The printing position on the paper is set by loading information from the readout control unit 38 and sending the carrier to the readout control unit 38 when the print position is reached.

The print data transferred from the host device (not shown) is sent to the double-sided format designated end i (e) as shown in Figure 3.
, "binding margin" designation information (fl and image information for each page fgl, (hl).

Also, the paper reversing mechanism during double-sided printing moves the paper (d) on the paper transport path fal to the reversing stacker 12, as shown in FIG.
a guide 11 that guides the paper (d) to the paper transport path (C), a reversing stacker 12 that temporarily stores the paper (d) and sends it out again to the paper transport path (C), and a reversing stacker 12 that inverts the paper fd+ on the paper transport path (C1
It consists of a guide 13 that guides the guide onto the al.

For example, the paper (d) is first sent from the hopper 1 onto the paper transport path (a) with the back side facing up, and when printed, the guide 11 moves the paper (d) to the reversal stacker 12 under the control of the reversing mechanism control unit 39. Guide (route (1) shown in Figure 5).

The paper (dl) sent from the reversing stiff force 12 to the paper transport path fc) is reversed to the front side by passing through the guide 13, and is sent out again onto the paper transport path fal (route (2) shown in FIG. 5). Ru.

Note that the reference symbol (B) shown in FIG. ) Image information (g) written from the image information memory 32 by sending only its print data ■.

(When reading out hl, it is turned off, and functions to send only the image information (g) and (hl) to the shared bus (B).

When the readout control section 38 confirms the double-sided printing command, it sends out a drum operation signal (2) for rotating the drum motor, and starts the rotation of the photosensitive drum 8.

During this time, the address counter 36b is stored in the image information memory 32.
The image information (hl) is written at the position specified by .

Incidentally, the output of the address counter 36b is created by increasing/decreasing in the vertical direction according to the image information (g) and (h) to be written as described above.

This image information (g), fh) is read from the image information memory 32 and stored in the shift register 36c. The shift direction at this time is the left or right direction specified by F/F 34c.

In the shift register 36c, data for one page is organized, and this is sent as a video signal 2 to the laser emitting unit 4, where double-sided printing is performed. Incidentally, when the scanning signal on the photosensitive drum 8 reaches the print position designation point designated by the counter 37, the signal (2) detected by the photodetector 6 is confirmed by the readout control section 38.

As a result, the read control section 38 controls the address counter 36.
b is accessed to designate the read address of the image information memory 32, and the read image information (g) and (h) are stored in the shift register 36c.

〔Effect of the invention〕

According to the present invention as described above, there is an effect that double-sided printing of print data can be performed quickly and with flexibility.

[Brief explanation of the drawing]

FIG. 1 is a block diagram explaining the present invention in detail, FIG. 2 is a block diagram explaining the present invention in detail, FIG. 3 is a diagram explaining the order of transfer print information in an embodiment of the present invention, and FIG. The figure is a diagram explaining the outline of the configuration of a laser printer device in an embodiment of the present invention. Figure 5 is a diagram explaining the reversal situation of paper in an embodiment of the present invention. Figure 6 is a diagram explaining how to bind double-sided printing paper. FIG. 7 is a diagram illustrating a double-sided printing format, and FIG. 8 is a schematic configuration diagram illustrating a conventional printing apparatus. In the figure, 1 is a hopper, 2 is a stacker, 3.30 is a control unit, 4 is a laser emitting unit, 5 is a part of a rotating mirror, 6 is a photodetector, 7 is a drum motor,
8 is a photosensitive drum, 9 is a developing device, 10 is a transfer device, 11.13 is a guide, 12 is a reversing stuff force, 31 is a control circuit, 32 is an image information memory, 33 is a register, 34 is a format designation center, 34a is a decoder, 34b, 34c are F/
F. 35 is a register (binding margin specification storage means), 36 is an access arbitration/data organization section, 36a is an access arbitration circuit, 36b is an address counter, 36c is a shift register,
37 is a counter (print position setting means); 38 is a readout control unit; 39 is a reversing mechanism control unit; FIG. 1 is a block diagram explaining the present invention in detail. Fig. 5 A detailed explanation diagram of the present invention Fig. 2 Explaining the order of transfer printing information in an embodiment of the present invention Fig. 3 A laser printer device in an embodiment of the present invention! Figure 6 to explain the outline of the configuration Figure to explain how to bind double-sided printing paper

Claims (1)

[Scope of Claims] In a printing device that prints simultaneously transferred print data ([1]) on both sides of a sheet according to a double-sided printing command transferred from a higher-level device, The print data ([1]) is transferred in the order of the specification of the duplex printing format, the specification of the 'binding margin' of the paper corresponding to the specified content of the duplex printing format, and the image information to be printed. a format designation setting means (34) for defining a print data format, receiving the print data format, and setting double-sided printing format designation content in a control unit (30) for controlling print processing operations in the printing device; , When the binding margin specification contents are stored, the binding margin specification storage means (3
5), and the scanning direction for reading out the image information memory (32) that stores the data to be printed transferred from the host device is set to the top, bottom, left and right according to the settings set in the format designation setting means (34). access arbitration/data organization means (36) for specifying four directions and organizing and outputting the read data as a video signal ([3]) for printing; Printing position setting means (37) for variably specifying the printing position on the paper according to the contents of the binding margin specification storage means (35); and a reversing mechanism for reversing the paper are read out and processed. and a reversing mechanism control means (39) for controlling the reversing mechanism accordingly, and when double-sided printing is instructed from the host device, double-sided printing of data is performed on the paper in a print format corresponding to the defined print data format transferred. A double-sided printing control system characterized in that printing is performed by controlling the printing direction and printing position based on the specifications of the access arbitration/data organization means (36) and the printing position setting means (37).