JPS6337420A - System for processing printing - Google Patents

Abstract

PURPOSE:To perform an efficiency print processing by retransferring print data stored in a memory if error occurs in an electrophotographic printer and transferring print data of the next page at the time of the end of printing. CONSTITUTION:When the processing in a latent image forming part 12 of an electrophotographic printer 10 is terminated, the end of printing of one page is reported to the side of a host system 1. Page names in the other areas are arranged close in a page name management part 23 to make the last area empty. Meanwhile, a page name write control part 22 reports the page name of the printed page to a memory write control part 31 of the host 1 through a page name reporting part 24. The control part 31 eliminates print data corresponding to the reported page name from a memory 30 and successively arranges print data in the other areas close together and writes new print data in the empty area from a print data file 2. If jam error is reported from an error reporting part 18 to the control part 31 on the way of this processing, the control part 31 immediately retransfers print data of the same page name again.

Description

[Detailed Description of the Invention] [Summary] This is a print processing method that, when an error due to a jam or the like is detected while processing print data in a printing device, resends the print data to a print data file in a host device. After accessing and transferring the print data and preparing to transfer the print data after error recovery, preparation for transfer of the print data was done by waiting for the completion report of the retransmitted item.In order to solve this problem, the printing speed is significantly reduced. Read from the print data file, give each page a name and store it,
If an error is detected in the print data of the page,
By configuring the system to immediately resend the stored print data for the page in response to that report, and to read the data from the print data file in parallel during that time, efficient print processing is possible even after error recovery. becomes.

[Industrial application field]

The present invention relates to a print processing method for printing print data transferred page by page from a host device page by page.

For example, electrophotographic printers currently in practical use are required to process print data with high quality and at high speed, and this processing is performed in the following procedure.

That is, printing is performed by creating a latent image on a charged photosensitive drum in accordance with the transferred print data, transferring it to printing paper, and fixing it.

The means for sending out the printing paper mentioned above is usually implemented via a mechanical mechanism, and jams may occur during the sending. In this case, the electrophotographic printer will report this as an error to the host system and try again. I am having the same print data transferred to me.

At this time, the print data corresponding to the next page is processed by entering the transfer $ reserve from the time when it is reported that the print data processing retransmitted in the error recovery process has been completed.

Therefore, error detection and print data processing after error recovery processing is delayed. Prompt processing of such processing is an important requirement for processing print data at high speed.

[Conventional technology]

FIG. 4 is a block diagram illustrating a conventional example, and FIG. 5 is a diagram illustrating a print processing procedure in the conventional example.

The block diagram in FIG. 4 shows a general configuration of the electrophotographic printer 10 and a part of the configuration of the host system 1, which stores print data patterns and prints data when accessed by the processing unit 3. A host system 1 includes a print data file 2 that sends out a data pattern page by page, a processing unit 3 that controls the legacy of print data processing within the host system 1, and the following functional blocks 11 to 18. It is composed of an electrophotographic printer 10.

The electrophotographic printer 10 includes a code analysis section 11 that analyzes the code of the print data pattern transferred page by page from the host system 1 and sends it to the latent image creation section 12; a latent image creating section 12 that controls optical signals etc. based on information and creates a latent image on a charged photosensitive drum (2) (shown in FIG. 5(A)); It has a transfer unit 13 that transfers the transferred print data to the printing paper (3) using a heat roller, a fixing unit 14 that fixes the transferred print data using a heat roll, etc., and a sensor (6) that detects the printing paper that is discharged. A discharge section 15 sends out the detection signal of the sensor (6) as a print processing end signal and discharges the printing paper (3) to the stacker (5), and a process within the host system 1 assumes that the print processing has ended normally. It has a completion reporting section 16 that reports to the transfer section 3, a means for detecting the printing paper (3) passing through a predetermined path in the transfer section 13, and further detecting the passage of the printing paper (3) even after a predetermined period of time has elapsed. When the error signal is not detected, the paper detecting section 17 sends out an error signal, and the error reporting section 18 reports the occurrence of an error to the processing section 3 in the host system 1 based on the error signal.

FIG. 5 is a diagram explaining the print processing procedure of the electrophotographic printer 10 and the processing path of the printing paper (3). A latent image forming section 12 sends out a signal corresponding to the analyzed data onto a charged photosensitive drum (2) to form a latent image.

At this time, the printing paper (3) is taken out from the hopper (11) in which the printing paper (3) is stacked and stored, and the printing paper (3) is taken out from the photosensitive drum (
2) The latent image above is transferred onto the printing paper (3) by the process of the transfer section 13, and sent to the fixing section 14 via a predetermined path.

The fixing section 14 fixes the transferred image on the printing paper (3) using a predetermined method, and when finished, sends it out to the discharge section 15. Note that during this process, only one sheet of printing paper (3) is on the predetermined path and is being processed. □When the sensor (6) in the discharge section 15 detects this printing paper (3), the completion reporting section 16 reports the end of the printing process to the host system 1 based on the detection signal, and the printing paper (3) is moved by the stuff force (
5) It is discharged inside.

The processing unit 3 in the host system 1 includes an electrophotographic printer 1
Waiting for the completion report of the print process from 0, reads the print data pattern for the next page from the print data file 2,
Controls transfer to the electrophotographic printer 10.

[Problem that the invention seeks to solve]

When print data is being printed in the electrophotographic printer 10 using the process described above, for example, the printing paper (3)
If the printing paper (3) is not detected within the detection time set in advance by the paper detection unit 17, an error occurs if a jam occurs during the paper delivery route or the printing paper (3) is not detected during the detection time set in advance by the paper detection unit 17 due to a power failure, etc. The occurrence of the error is reported to the processing unit 3 via the reporting unit 18.

The processing unit 3 accesses the print data file 2 and retransfers the print data pattern for which an error report has been reported, and the processing unit 3 retransfers the print data pattern for which the error has been reported. Preparations for transferring the print data pattern will have to wait.

In other words, preparation for transfer of the next print data pattern must wait until the fixing process for the error-recovered print data pattern is completed and the ejection process begins, resulting in a problem in that the overall print processing speed is significantly reduced. be.

[Means for solving problems]

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

The principle block diagram shown in FIG. 1 is based on the print data file 2 described in FIG. A processing unit 3 and a storage unit (memo storage unit) for storing page-by-page print data transferred from a host system (host system) 1 to a printing device (electrophotographic printer) 10 by assigning a page name to a predetermined number of pages. 30, print data corresponding to the storage capacity of the storage means (memory) 30 is sequentially outputted from the print data file 2, a page name is given to the print data, and the print data is written or stored in the storage means (memory) 30. A memory write control unit 31 is provided for deleting the print data written in the means (memory) 30 to which the page name has been reported from the printing device (electrophotographic printer) 10. the upper device (host system) 1, the functional blocks 11 to 18 explained in FIG. The page name of the print data detected by the detection signal trailing edge detection means for detecting the part and the detection signal trailing edge detection means may be used to delete the page name stored in the page name management means;
A page name writing control means that controls writing of the page name obtained by analysis by the code analysis unit 11, and is stored in the storage means (memory) 30 in the host system 1 under the write control of the page name writing control means. The page name management means stores and manages the page names corresponding to the number of pages written, and the page name notification means reports the page names sent from the page name writing control means to the host system 1. It is composed of a printing device (electrophotographic printer) 10 having a holding means (page name management/processing section) 20.

[Effect]

A memory 30 is provided in the host system 1 for assigning a page name to the print data to be transferred and reading and storing print data for a predetermined page from the print data file 2. When the printing process for the page is completed, the page name is assigned to the print data to be transferred. A notification is received from the electrophotographic printer 10, the data is deleted from the memory 30, and the print data corresponding to the page of the public land is stored.

On the other hand, the electrophotographic printer 10 is provided with means for storing and managing the same number of page names as the print data stored in the memory 30, and when the printing process is completed, the page names are also changed to the same number of page names as the print data stored in the memory 30. Delete and code analysis section 1
Stores the page names for the print data analyzed in step 1.

If an error due to a jam or the like occurs in the electrophotographic printer 10, the host system 1 that receives the error report immediately retransfers the print data stored in the memory 30.

At the time of receiving the print processing completion report for this print data,
By immediately transferring the print data for the next page that has already been read and stored in the memory 30, efficient print processing becomes possible.

〔Example〕

The gist of the present invention will be specifically explained below with reference to embodiments shown in FIGS. 2 and 3.

FIG. 2 is a block diagram illustrating the present invention in detail, and FIG. 3 is a diagram illustrating the procedure of print processing operations in an embodiment of the present invention. Note that the same reference numerals indicate the same objects throughout the figures.

An embodiment of the page name management/processing section 20 according to the present invention is composed of the following functional blocks as shown in FIG. That is, the detection signal trailing edge detection section 21 detects the trailing edge portion of the detection signal from the sensor (6) that detects that the print data that has been printed has been carried out as a printed matter, and the detection signal trailing edge detection section 21 detects this. A page name writing control unit 22 that controls the deletion of the page name stored in the page name management unit 23 and the writing of the page name obtained by analysis by the code analysis unit 11 based on the page name of the print data that has been generated. Under the write control of the page name write control unit 22, the page name management unit 23 stores and manages page names corresponding to those stored in the memory 30 in the host system l, and the page name write control unit 22 sends out the page names. The page name notification section 24 is provided to report the page name to the host system l.

The memory 30 of this embodiment shown in FIG. 2 has a capacity to store print data for five pages.
Similarly, it is assumed that the storage device has a capacity to store and manage the page names of five pages of print data.

In addition, FIG. 3(A) shows the processing path for print data and page names, and the processing path for printing paper (3) (there are multiple sheets of printing paper (3) in between). B) shows a print processing procedure for print data.

The memory write control unit 31 in the host system 1 assigns a page name to each of the print data equivalent to five pages from the print data file 2, writes and stores them in the readout memory 30 in the order of transfer, and stores them. The print data is transferred page by page to the electrophotographic printer 10 in the order specified.

Electrophotographic printer 10 that received the transferred print data
The code analysis section 11 analyzes the page name, and sends the page name to the page name writing control section 22.

The page name writing control unit 22 sequentially writes this page name to 5
Up to the page name is written and stored in the page name management section 23.

On the other hand, the print data is subjected to printing processing, and when the printing processing is completed and the printed matter is ejected to the ejection section 15, the sensor (6)
Based on the detection signal from the detection signal trailing edge detection unit 21 that detects the trailing edge portion of the detection signal, the page name writing control unit 22 writes the page name corresponding to the print data that has been printed to the page. It is deleted from the name management section 23.

In the case of this embodiment, at the time when the completion report section 16 reports the end of processing, it confirms that the processing of the latent image creation section 12 has ended, and then reports to the host system 1 that printing of one page has ended.

The page name management unit 23 sequentially fills in page names in other areas, leaving the last area (ie, the fifth area in this embodiment) empty. On the other hand, the page name write control unit 22 notifies the memory write control unit 31 in the host system 1 of the page name via the page name notification unit 24.

The memory write control unit 31 deletes the print data corresponding to the notified page name from the memory 30, sequentially fills print data in other areas, and writes new data from the print data file 2 into the empty area. Write print data.

For example, if a jam occurs during the above-mentioned processing and a jam error report is received from the error reporting unit 18, the memory write control unit 31 immediately retransfers the print data with the same page name.

When the printing process of this print data is completed, the memory write control unit 31 transfers the print data of the next page already stored in the memory 30, and at the same time, while the transferred print data is being processed, Other print data is read from the print data file 2 and preparations for transfer are made.

Note that the symbols ■ and ■ shown in FIG. 3(B) represent the same print data.

〔Effect of the invention〕

According to the present invention as described above, efficient printing processing can be performed without reducing the overall printing processing speed of an electrophotographic printer.

[Brief explanation of drawings]

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 procedure of print processing operation in an embodiment of the present invention, and FIG. The figure shows a block diagram explaining the conventional example, and FIG. 5 shows a diagram explaining the print processing procedure in the conventional example. In the figure, 1 is the host system (upper device), 2 is the print data file/3 is the processing unit, 10 is the electrophotographic printer (printing device), 11 is the code analysis unit, 12 is the latent image creation unit, and 13 is the transfer unit. Department,
14 is a fixing section, 15 is an ejection section, 16 is a completion report section, 17 is a paper detection section, 18 is an error report section, 20 is a page name management/processing section (holding means), 21
22 is a page name writing control unit; 23 is a page name management unit; 24 is a page name notification unit; 3
0 is a memory (storage means), 31 is a memory write control unit 1. 4 (斃゛37+ (7,, cat4 > guess 4 H7,3
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Claims (1)

[Claims] A host device (1) that transfers print data page by page, and a sheet connected to the host device (1) that is transported through a paper transport path from a paper storage section to a paper transport section. a printing device (10) that prints the print data page by page;
The host device (1) transfers print data on a page-by-page basis in response to a print completion report from the printing device (10), and also receives a report of paper transport failure in the paper transport path. If there is, in the print processing method that retransmits the data to be printed on the paper with the transport defect, the host device (1) stores the print data for each page with a different page name. storage means (3
0) and is configured to transfer print data to which the page name is assigned page by page, and the printing device (10) transmits the completion report by at least an image corresponding to the print data in page units. The holding means (20) is configured to emit a page name after the image is formed, and holds the page name given to the print data to be printed on the paper at least while the paper on which the image is formed exists in the paper transport path. ), and if there is a paper conveyance failure, the printing device (10) sends the page name corresponding to the data printed on the paper with the conveyance failure report together with the conveyance failure report to the host device (10).
), and the host device (1) transfers print data for each page corresponding to the notified page name.