updated March 18, 2002

After the printer resets, it defaults to not sending status unless requested. If an error occurs, the printer appears hung, unless a status is requested. If unsolicited status is enabled, the printer sends the error to the system as soon as it occurs.

Note: If transparent XON/OFF is disabled, X'10', X'11', and X'13' can be imbedded in returned status and data. (See “XON/XOFF Control” on page 24.) To re-enable the printer, the printer must be reset.

Data Buffer Management and Batch Printing

Reset Line Count

RS-232 Syntax:

ESC 6 or X'1B36'

Purpose:

Resetting the line count lets the system track the print line where an error occurs.

Remarks:

The line count is incremented at every print command. The count is sent in every status message to the system. The count can go to 256 (X'0FF'), when it rolls back to 0. (See “Print Character Commands” on page 148.)

Disable Line Count

RS-232 Syntax:

ESC 8 n or X'1B;38'n

Purpose:

To temporarily not increment the line count. This can be used when printing predefined messages, if the number of lines embedded in the message is unknown.

Hold Printing Until Buffer is Released

RS-232 Syntax:

ESC 7 or X'1B37'

Purpose:

If the system cannot send data to the printer at a speed needed to keep the printer in constant motion, it can hold the printer queue until it sends all data lines for a transaction.

Remarks:

The printer must be printing one line while processing the next line. If the printer is unable to completely process a line, the print speed reduces to half.

The line count is reset when the buffer is held.

Document Handling

Use the side load capability for documents that must be positioned to begin printing at a particular location on the document. (There is an arrow on the side of the cover to indicate where printing begins.) Use front load for all other cases.

Appendix C. RS-232 Programming Information 157

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IBM TI5, TM7, TF7, TG5 Data Buffer Management and Batch Printing Reset Line Count, Disable Line Count, Document Handling

TI5, TG5, TM7, TF7 specifications

IBM has long been a pioneer in the field of technology and enterprise solutions, consistently delivering innovations that redefine industry standards. In line with this tradition, IBM has unveiled its latest offerings: TF7, TM7, TG5, and TI5. Each of these models is designed to cater to specific needs within the growing arena of data processing and management.

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