JPS61187460A - Recorder - Google Patents

Abstract

PURPOSE:To diagnose the state of picture by providing an operation control means for suppressing the operation for retransmitted number of recording media carried in the recorder in response to a trouble generated in the test print mode setting to execute the test print in on-line state optionally. CONSTITUTION:When the print of a recorder main body 1 is started, the output state of a BD signal outputted from a recording synchronous (BD) signal generating circuit 4 is supervised always by an output defect detection circuit 5, and when any output defect is detected, whether or not the test print mode is set is discriminated further. When the setting is YES, a CPU 6 does not set the presence of mis-print to the controller 2 but continues a required operation, then the calculation of the retransmitted sheet number is not executed. Errors such as duplicated transmission of print paper, or synchronizing signal (VSYNC signal) for picture write and other errors can be referred totally to as mis-print and the similar processing can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device that records an image upon receiving image information sent from an external device.

[Conventional technology]

A conventional recording apparatus is constructed as shown in FIG.

FIG. 3 is a configuration block diagram illustrating an example of a conventional recording device, in which 11 is the recording device main body, and the printer unit 1-
12.2 & tray unit 13. Double-sided unit 14. Control data and video signals are received via a device video interface 17 consisting of a paper deck 15, etc., and images are formed using a known electrophotographic method. Reference numeral 18 denotes a manual switch for instructing a test print. When this manual switch 18 is turned on, a test print mode is set when online with the control device 16, and the printer unit 12 executes its own print operation to form a desired image. It is configured so that the image condition can be checked.

Next, the number of retransmitted sheets will be explained.

The number of retransmitted sheets is data indicating the number of recording media (print paper) existing in the printer unit 12. Therefore,
The control device 16 includes a printer unit"/to 1 2
Even if image information is lost due to a synchronization error or print error (described later) while printing, by reading this data on the number of retransmitted sheets and restarting the print operation for that number of sheets, the information for one image will be restored. This can prevent defects.

[Problem that the invention seeks to solve]

However, since the test print mode can be set online with the control device 16, an error may occur while the test print is being executed.

For example, when an output failure of a synchronization signal for capturing a video signal occurs in the recording apparatus main body 11, a control means (not shown) of the printer unit 12 instructs the control device 16 to that effect. For this reason, the control device 16
Even though no print command is sent from
In response to a misprint command output from the printer unit 12, the control device 16 may perform an error recovery operation, or ignore the command and not even output a misprint cancellation command. A significant mismatch occurs in the I10 matching between the control device 16 and the control device 16. For this reason, there is a problem in that the system does not know what action to take next, and the system is often forced to reset. Furthermore, if there is a number of prints to be retransmitted that have not been executed by the control device 16, the control device 16
There were problems such as correct error recovery not being possible and loss of image information.

In the current system in which a single printer is shared by a plurality of hosts to form images, once the above-mentioned problem occurs, operational efficiency is significantly reduced.

The present invention has been made to solve the above-mentioned problems, and eliminates the inconvenience caused by misprints that occur in the test print mode, so that even if test prints are always performed online, images are not lost. It is an object of the present invention to provide a recording device that is capable of recording and diagnosing an image state arbitrarily in an online state.

[Means for solving the problem]

The recording apparatus according to the present invention is provided with a calculation control means for suppressing calculation of the number of retransmissions of recording media conveyed into the recording apparatus in accordance with a trouble state that occurs during test print mode setting.

[Effect]

In the present invention, when the arithmetic control means detects a synchronization error occurring in the recording apparatus main body and an error with respect to print paper while setting the test print mode, it suppresses calculation of the number of retransmitted recording media to be conveyed.

〔Example〕

FIG. 1 is a block diagram showing a configuration of a recording apparatus according to an embodiment of the present invention. Reference numeral 1 denotes a main body of the recording apparatus, which exchanges information with an external device via a control device 2 and an interface circuit 3. As shown in FIG. Reference numeral 4 denotes a recording synchronization signal generation circuit which captures a video signal in synchronization with a generated reference clock signal.

Reference numeral 5 denotes an output failure detection circuit which monitors the output state of the synchronization signal generated by the recording synchronization signal generation circuit 4 and sends the output of the synchronization signal to the CPU 6 (arithmetic control means). 7 is a momentary switch that commands a test print operation. Note that the main body 1 of the recording apparatus mainly shows the control configuration, and elements 12 to 15 shown in FIG. 3 are omitted for the sake of explanation.

Next, the operation of each part will be explained.

A print start command is sent from the control device 2 to the recording apparatus main body 1. Thereafter, the control device 2 outputs a recording synchronization signal (B) sent from the recording synchronization signal generation circuit 4.
An image information signal (video signal) is output to the recording apparatus main body 1 in synchronization with the D times signal, and a predetermined image forming operation is started.

At this time, the output failure detection circuit 5 is connected to the recording synchronization signal generation circuit 4.
It is checked whether the BD multiplied signal outputted from the BD multiplied signal is correctly outputted or not, and if a BD multiplied signal output error is detected, it is outputted to the CPU 5 as a detection signal a. In response to this, the CPU 6 transmits the information "T misprint" to the control device 2, and calculates data on the number of sheets to be retransmitted. Along with this, the recording device main body 1 ejects the print paper present in the device,
The operation is stopped until a misprint cancellation command is received from the control device 2.

Next, the control operation of the present invention will be explained with reference to FIGS. 2(a) and 2(b).

FIGS. 2(a) and 2(b) are flowcharts illustrating an example of the control operation of the present invention. In addition, (1) to (2)
, (11) to (16) indicate each step.

The flow shown in FIG. 2(a) is a subroutine included in the image forming operation. First, it is determined whether the momentary switch 7 is in the on state (1). If the answer is NO, the process returns to the main routine to continue, and if the answer is YES. If so, set the test print mode (2). This distinguishes between the test print mode and normal print operation.

When the flow shown in FIG. 2(a) is completed, the recording device main body 1
When the printing operation starts, the flow shifts to the flow shown in FIG.
The output failure detection circuit 5 constantly monitors the double signal output state.
1) When an output failure is detected, it is further determined whether the test print mode is set (12).
If this judgment is NO, the CPU 6 notifies the control device 2 that there is a misprint (13), and further calculates data on the number of sheets to be retransmitted (14). Then, as described above, the operation is stopped until the misprint cancellation command is received. In addition, if the determination in step (12) is YES, the CPU 6 informs the control device 2, ``In order to continue the required operation without setting Misprint J, the calculation of the number of retransmitted sheets will not be performed.'' Then, it is determined whether printing has ended (15). At this determination, YES
In this case, please reset the test print mode 16)
, in the case of No, the operation of this routine is continued.

In the above embodiments, we have explained about the output failure of the recording synchronization signal, but errors such as double feeding of print paper, no single image write synchronization signal (VSYNC signal), etc., and other errors are collectively referred to as misprints and are similar to Processing may also be executed.

Furthermore, in the above embodiment, the CPU 6 is controlled to ignore the detection signal of the output failure detection circuit 5 while setting the test print mode. A similar effect can be obtained even if the detection signal is controlled not to be sent.

Furthermore, during the test print operation, for example, there is a double feed, there is a jam, there is no counter, and there is no toner.

Control may be performed to ignore errors such as waste toner full.

〔Effect of the invention〕

As explained above, the present invention includes a calculation control means that suppresses the calculation of the number of sheets of recording media to be retransmitted to be conveyed into the recording device according to a trouble state that occurs during the test print mode setting. This method has the advantage of eliminating inconveniences caused by misprints that occur during mode, making it possible to diagnose image conditions by arbitrarily executing test prints online, and efficiently recording images without image defects.

[Brief explanation of drawings]

FIG. 1 is a configuration block diagram of a recording device showing an embodiment of the present invention, FIGS. 2(a) and (b) are flowcharts explaining an example of the control operation of the present invention, and FIG. 3 is a conventional recording device. FIG. 2 is a configuration block diagram illustrating the operation of the FIG. In the figure, 1 is the main body of the recording apparatus, 2 is a control device, 3 is an interface circuit, 4 is a recording synchronization signal generation circuit, 5 is an output failure detection circuit, 6 is a CPU, and 7 is a momentary switch. i-1:..., -J Engj Figure 1 L----111--------
-1-'' Figure 2 (a) (b) -Picture

Claims (1)

[Claims] In a recording device that records images by receiving image information sent from an external device, the calculation of the number of retransmissions of recording media to be transported into the recording device is suppressed depending on a trouble state that occurs during test print mode setting. What is claimed is: 1. A recording device characterized by comprising arithmetic control means for