Wincor Nixdorf TH200, Руководство программиста

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Programmer’s Guide
TH200
13
DLE ENQ n Real-time request to printer
Code:
Range:
Description:
Notes:
Reference:
ASCII DLE ENQ n
Hex 10 05 n
Decimal 16 5 n
1
≤
n
≤
2
Responds to a request from the host computer. n specifies the requests as follows:
n Request
1 Recover from an error and restart printing from the line where the error occurred
2 Recover from an error after clearing the receive and print buffers

This command is effective only when an auto-cutter error occurs.

The printer starts processing data upon receiving this command.

This command is executed even when the printer is off-line, the receive buffer is full, or
there is an error status with a serial interface model.

With a parallel interface model, this command can not be executed when the printer is
busy.

The status is also transmitted whenever the data sequence of <10>H<05>H<n> (1
≤
n
≤
2) is received.
Example:
In ESC * m nL nH dk , d1 = <10>H, d2 = <05>H, d3 = <01>H

This command should not be contained within another command that consists of two or
more bytes.
Example:
If you attempt to transmit ESC 3 n to the printer, but DTR (DSR for the host
computer) goes to MARK before n is transmitted, and DLE ENQ 2 interrupts
before n is received, the code <10>H for DLE ENQ 2 is processed as the code for
ESC 3 <10>H.

DLE ENQ 2 enables the printer to recover from an error after clearing the data in the
receive buffer and the print buffer. The printer retains the settings (by ESC ! , ESC 3 ,
etc.) that were in effect when the error occurred. The printer can be initialized
completely by using this command and ESC @ . This command is enabled only for
errors that have the possibility of recovery, except for print head temperature error.

When the printer is disabled with ESC = (Select peripheral device), the error recovery
functions (DLE ENQ 1 and DLE ENQ 2 ) are enabled, and the other functions are
disabled.
DLE EOT