JPS619723A - Recovery system of print output error - Google Patents

Abstract

PURPOSE:To improve the reliability in case an error in generated by setting the print action analysis information of the error generating mode into the device status words through a printer system and leaving ghe error recovery processing to an operating system. CONSTITUTION:In a format of a device status word 9 delivered from a printer system of an error recovery system, a field X reports the error generating state and the possibility for automatic recovery. A field Y reports the print action analysis result of an error generating mode in case the automatic recovery is possible. While fields Z1 and Z2 code the details of errors. The field Y for print action analysis is classified into three cases; errors producing no mechanical action, errors related to the row and pagin, errors about printing and occurring before and after the row and paging, and errors of unknown positions, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an output control method for a printing device connected to a data processing system, and particularly to an error recovery method for the output.

[Prior art]

Conventionally, there is a control system of this type as shown in FIG. In this conventional control method, an operating system prepared in the data processing apparatus uses an end status code transmitted from the printing apparatus to the data processing apparatus and sense information indicating details of the error when an error occurs. Based on the instructions from the system, a corresponding operator was supposed to perform the recovery process for the error. In this figure, a data processing device (3) is connected to a printing device (1) via a channel (i) and a print control device (i). The device (3) is equipped with an operating system (6) for starting and ending printing operations and determining error conditions during printing operations.
). Further, (ri) is an input/output status word (CSW), which is received by the data processing device (3) at the time of termination of human output processing.

(j) is a channel status word, which is used to indicate the completion status of the operation of the channel.

(Te) is a device status word 'C1 This is set in the print control device (K) to indicate the completion state of the printing operation of the printing device (1). Also, (10)
is the error message displayed on the error message display section (evening).
This is an example of a message, in which the part marked NDD (//) represents the input/output address of the printing device, and the part marked xxxx (/co)
represents error information in hexadecimal notation that occurred during the printing operation and is received by the data processing device (3).

In a data processing system with such a configuration, the data processing device @(3) sends out data to be printed at a required time, and this is sent to the print control device ff! under the control of the channel (ri).
A printing operation is started by operating a printer system consisting of (, 2) and a printing device (1). The end of this printing operation is then reported from the print control device (2) to the data processing device (3).

The operation of the conventional control system of this type will be explained in more detail with reference to FIG. 1. First, the data processing device (3) prepares coded data representing characters to be printed (print data) and coded data (control data) that controls line breaks and page breaks on printing paper, and then prints the data. A channel command word (C
CV) and instructs the printer system to start input/output operations using a predetermined SIQ command (first stage).

Following this, the printer system interprets the CCW and initiates a printing operation (step U). When this printing operation is completed, the printer system reports this to the data processing device (3rd step) based on the device status word (wo) indicating the completion status of the printing operation. ), the operating system (6) provided in the device status word (q),
C3W ('7) in the data processing device (3) created based on the channel status word Cg) indicating the error status of channel B4t1 and the last executed CCW is checked (μth stage ISf&). Then, when it is determined that no error exists, if print data remains, the operations from the first step are repeated.

Further, when it is determined that an error exists, an error message display section (3) provided in the operator's console, for example, K indicates an error message (10) indicating the occurrence of an error, and a channel status word (g).
, device status word (9), and sense information θ are output, and a judgment by the operator in charge is awaited.

By the way, in printer systems using conventional control methods, only the internal structural status of the device is reported, without analyzing the printing operation at a predetermined point in time and creating and reporting a device status word in a dead format. Because I was trying to
The operating system could only perform simple error recovery processing such as retrying the same ccwtt, and error handling was left entirely to the operator in charge, which placed a heavy burden on the operator. The disadvantage is that the processing is complicated and involves great difficulties.

[Summary of the invention]

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional method, and the printer system sets information in the device status word that analyzes the printing operation at the time of error occurrence, so that error recovery time can be improved. By leaving most of the processing to the operating system, we aim to improve reliability in the event of an error, and at the same time, provide an error recovery method for the output of a lath printer system that reduces the burden on the operator in charge. This is the purpose.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to FIGS. 2 and 3.

First, FIG. 1 shows the device status word (
9) is shown. In this first figure, the X field is for reporting the error occurrence status and whether or not it can be automatically recovered, and the Y field is for reporting the analysis result of the printing operation when the error occurred, if automatic recovery is possible. and 2. ,2
．． The field is for encoding details of the error. These are considered to have the following meanings.

X=O...No error.

/...Automatically recoverable error.

Co...Error that cannot be automatically recovered.

Y=0...No error.

/...Error not accompanied by mechanical movement.

U...Recoverable errors related to line and page feeds.

J: Printing error before line feed or page feed.

DA...Printing error after a line feed or page feed.

5...Location unknown error.

2. 2U...Error details code.

Next, FIG. 3 is a flowchart for explaining the operation of the error recovery method according to the embodiment of the present invention, in which (S
to), (Bco0) and (B90) are the same stages as in the conventional method, and
The stages O) and (stoo) are stages introduced by using the device status words shown in FIG. 2 above.

The basic operations of a typical printer system include printing processing and one type of paper control such as line feed or page feed. The printer system receives the received CC
The CCW interprets the W and controls the above-mentioned one type of operation, but the CCW has commands (called Odan,
Contains code for directly specifying behavior. This code includes those instructing ■Printing, ■Paper control after printing, ■Printing after paper control, and ■Paper control. Note that a code (FCC) for instructing paper control is set as part of the print data at the first character along with the print data. This F'CC includes one that instructs a line break (seven lines or multiple lines) and one that instructs a page break.

A predetermined operating system provided within the data processing device detects the completion of a printing operation from the printer system by receiving and receiving the device status word shown in FIG. Upon receiving the device status word, the data processing device checks whether the printing operation was completed normally or if an error occurred.
IO), in the case of normal termination, prepares the CCW to send the next data to the printer number system (B20).

On the other hand, if an error occurs, it is determined whether it is an error that can be automatically recovered (S3θ),
In the case of an error that cannot be automatically recovered, the operator console outputs a predetermined error message and waits for intervention by the operator in charge (S30), as in the conventional case. When this error is reported to be an automatically recoverable error, the necessary error recovery processing is performed based on the information regarding the printing operation at the time the error occurred (F3'IO-F3
gO). First, if the error does not involve mechanical movement, the same 〇〇V is tried again (S110). Line feed error is a recoverable error related to page feed, and if a paper control order has been placed after printing, change it to a paper control order, and then If any of the control orders has been placed, ccw & retry (sho) without changing the order. If the error is related to printing before line feed or page feed, retry the same CCW (S
60), if the error is related to printing after line feed or page feed, change the CCV from the print order after paper control to a simple print order and try again (87(:l)).

If an error with an unknown position is reported, the CCV that prints the data at the beginning of the page of the paper where the error occurred is placed after the C'CW that instructs a page break (((chained)). and try again (SεO).

In this embodiment, paper control is set to 1? Although the case where this is performed by 'cc has been described, a similar error recovery method can be applied even when this is performed by order. In addition, if the system is implemented using FCC functional orders, there are two types of orders: paper control and printing, and the paper control order and the printing order are used in a chain. The type of paper control order is FCC
There are the same number of FCC functions, and the FCC function is not embedded in the print data.

〔Effect of the invention〕

As explained above, according to the present invention, the burden of analyzing the cause of errors is reduced from the operator in charge, and high reliability is achieved by performing automatic recovery processing in accordance with the details of errors reported by the printer system. It has the effect of obtaining.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the conventional method, and FIG. 2 is a format diagram of the device status word applied to the embodiment method of the present invention.
FIG. 3 is a flowchart for explaining the operation of the embodiment system of the present invention. (1)...printing device, (2)...printing control device, (3)
...data processing device, (su...channel, (!r)...
Error message display area, (6)... Operating system, (ri)... Input/output status word (C8W), (
g)...Channel status word, (9)...Device status word, (lO)...Error message. In each figure, the same reference numerals indicate the same or corresponding parts. Almost 1 banknote 2 banknote procedural amendments (voluntary) March 25, 1985

Claims (1)

[Claims] A data processing device is connected via a channel to a printer system consisting of a print controller and a printing device, and an operating system provided on the data processing device is
In a print output error recovery method that performs predetermined printing operations and paper control under the control of a system, and also handles errors that occur, termination of the printing operation is sent from the print control device to the data processing device. Information indicating the analysis result of the printing operation of the printer system at the time of error occurrence is set in the device status word prepared for notification to the printer, and the necessary error recovery processing is selected depending on the analysis result. A printout error recovery method characterized by: