NCR 5021 Printer Emulation Commands

Reset

This command does the following:

Stops printing

Flushes data buffers

Initializes parameters

Resets I/O ports

Takes the printer offline

It does not reload the character set from NVRAM, affect the interline spacing, clear the tallies, or flush the communication buffers. The command is executed immediately, regardless of the state of the printer.

Hexadecimal

Decimal

ASCII

1B 5B 30

27 91 48

ESC [ 0

The printer sends the following in reply to this command: 1BH, 5BH, 35H, 30H, 32H, 31H, 2CH, 31H, 30H, 30H, 32H, 2CH, 30H, 31H, 30H, 30H, 2CH, vvH*, vvH*, 70H

*The value of vvH may be 30H-39H.

Open

Puts the printer online. The printer accepts all commands except Set Interline Spacing (1B 5B 72) and Write Device Control Memory (1B 5B 7F) when it is online. The printer accepts printable data only when it is online.

If the open command is received while the printer is already online, the open command is ignored.

The printer is offline when it powers up.

Hexadecimal

Decimal

ASCII

1B 5B 32

27 91 50

ESC [ 2

8–4

3255 4073–002

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Unisys EFP9800 manual NCR 5021 Printer Emulation Commands Reset, Open