NCR 5021 Printer Emulation Commands

Cancel Double-Wide

Ends double-wide printing.

Hexadecimal

Decimal

ASCII

1016DLE

Set Double-Wide

Starts double-wide printing. The printer returns to single-wide mode when it receives the Cancel Double-Wide (10) command or when the end of the current line is reached.

Hexadecimal

Decimal

ASCII

1218DC2

Set Interline Spacing

Sets the number of dot rows that are printed between lines. The default number of dot rows is 2. The valid range is from 1 to 7 dot rows.

This command is processed only when the printer is Offline.

Hexadecimal

Decimal

ASCII

Value of n

1B 5B 72 n

 

ESC [ r n

31-37

Printer Status Commands

Read Status

Returns the status of the printer.

Printable data sent to the printer immediately after this command is not included in the print process or data buffer status.

If the printer is not processing data, but data is buffered, then the printer is holding a partially formed line and is waiting for the user to complete the line before it is printed. The forms compensation assembly is not opened while the printer holds a partial line of data.

The data buffer status reflects the state of the data buffers only, not the communication buffers.

3255 4073–002

8–13

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Unisys EFP9800 NCR 5021 Printer Emulation Commands Cancel Double-Wide, Set Double-Wide, Set Interline Spacing, Read Status