JPS62227680A - Media low detection system - Google Patents

Abstract

PURPOSE:To equalize the results of printing by a printer by including a media low controller to reset counter, a switch enabling an operator to alter line number, and a controller to notify alarm to an higher-level computer when line number coincides with the content of counter. CONSTITUTION:In an interface 18, output data from a computer are stored in a data buffer 20 and the demand of output is notified to a control circuit 30. By instruction of the circuit 30, data from the buffer 20 are received by a printer head pin control circuit 40 to operate a printer head pin 70 for printing. A paper sending control circuit 50 gives instruction for sending papers to a paper sending motor 80 and 1 is added to the counter. A media low control circuit 110 receives signals from media low sensor 90 to reset the counter 60, and the contents of the counter 60 and the switch 100 are compared. When the values are the same, alarm response signal is sent to the computer through the control circuit 30. By such a constitution, the results of printing are equalized.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a media low detection method.

[Traditional technique]

The conventional media low detection method is the dot impact type 7
“As soon as the media low detection in the link is sensed, an alarm signal is sent to a total of 7 machines in the upper order.
Additionally, the sensor position was determined individually for each model.

[Problem that the invention seeks to solve]

In other words, in the conventional media low detection method described above, the media low detection position differs depending on the model of dot impact printer, so when outputting Tendo data to a printer from an application on a host computer, it is necessary to specify the printer model in the application. If the printer is operated without adjusting, there is a drawback that the printer print results will be different in the recovery area WE when a media low occurs.

For example, if a certain amount of data is divided and output from a total of 3 applications to a printer whose media low detection position is one printer head pin away, the data sent to the printer's buffer even when a media low detection position is detected is is a case in which all printing is performed on the same paper, and if the media low detection position is closer to the printer head pin than the printer mentioned above, some of the data sent to the printer's buffer when media low is detected is transferred to the paper. There is a drawback that printing fails, and when resetting the paper, it is necessary to reprint from the remaining 0 portions on a separate sheet of music, resulting in different printing results.

[Rounding method to solve problems]

The media row feeding method of the present invention minimizes r! J] A counter that is reset by the media low sensor located at r#i @VC, the switch that can be changed from the row ak operator, and the media low detection signal from the media low sensor, and counts up by +2 by the change operation of the grifter head. and a control circuit that senses the state of the switch, compares it with the contents of the counter, and issues an alarm signal to the host computer as a heavy arrow if the values are the same.

(Central Example) Next, embodiments of the present invention will be described with reference to the drawings.
do.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In the media row output method shown in FIG. 1, an interface signal 2 consisting of an output request and output data is received from the computer to the printer via a contact 1, and the interface 18 outputs the output data as a data signal 3 to the data buffer 20. It is stored and notified to the control circuit 30 as the output request kmJ control signal 4.

In response to the output request Xt-, the rbij control circuit 30 issues a data address instruction 6 to the data buffer 20 and notifies the link 1 of an instruction to output the data as a data signal 7 to the control circuit 40 as a data output instruction 8, and also sends a line feed. At times, a paper feed instruction 9 is output to the paper feed control circuit 50.

To the printer, the doping control circuit 40 is connected to the data buffer 20.
Get data from σ and shi, printer head bin operation instructions 1
3 and prints by operating the radbin 70 on the printer.

The paper feed 1blJ control circuit 50 outputs a paper feed instruction 14 to the paper feed motor 80 and also outputs a count instruction 12.
Outputs and adds +1 to cuff/ri60.

The media low detection sensor V-90 sets the menai arrow detection signal 15 when detecting the media low.

The media low control circuit 110 outputs the media low detection signal 1
5, the counter 60 is reset with the counter reset instruction 11, and the contents of the counter 60 obtained in response to the counter sense signal 10 and the state of the switch 100 obtained in response to the switch sense signal 45 are compared. do.

The media low control circuit 110 controls the market when the contents of the counter 60 and the switch 100 are l'1fJ-1 direct.
Send alarm signal 17 to Ayu 30.

The control circuit 30 receives the alarm signal -S't17t- and sends an alarm response to the calculation unit as a response (MQ5).

〔Effect of the invention〕

The media low detection method of the present invention is provided with an external switch and can be set freely by the operator.This makes it possible to standardize the temporary processing from the top total of 7km for printers with different positions of the media low detection sensor. I can feel the effect of being able to do it.

[Brief explanation of drawings]

GL is a block diagram showing one embodiment of the present invention. l... Contact, 2... Interface signal, 3... Data signal, 4... Control signal, 5... Response signal, 6 ...Data address instruction, 7...Data signal, 8...
...Data output instruction, 9...Paper feed instruction,
10... Counter sense signal, 11...
・Power 9 Reset instruction, 12...Count up instruction, 13...Grinmeh, dobbin operation instruction, 14...Paper feed instruction, 15... Media low detection No. 4, 16...Switch sense signal, 17...Alarm signal, 18...
・・Interface, 20・・Group・Data buffer, 3
0...control circuit, 40...to printer, dobbin control circuit, 50...paper feed control circuit,
60... Counter, 7o... Printer rotation/, 8°... Paper feed motor, 90...
...Media low detection upper limit, 100...
Switch, 110... Media low control circuit.

Claims (1)

[Claims] In a dot printer having an internal buffer for temporarily storing data, a counter, a paper feed control means for incrementing the counter when paper is fed, and a medium located at a distance of at least a paper length from a head pin and for detecting media low. a low detection means, a media low control means for resetting the counter in response to a media low detection signal, and a switch that allows an operator to change the number of rows;
A media low detection method comprising: a control means that compares the number of rows set in the switch with the contents of the counter and notifies a host computer of an alarm when they match.