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3-8
Printing
Changing the Protocol
When you first turn the printer on, the active protocol depends on what port will be used for
printing.
For Macro 1: If you use the serial port, the active protocol will be the DEC protocol.
If you use the parallel port, the active protocol will be the Epson protocol.
For Macro 2: If you use the serial port, the active protocol will be the DEC protocol.
If you use the parallel port, the active protocol will be the IBM protocol.
This printer has three protocols and allows you to set the protocol mode in one of the
following three ways: the printer engages one of the three protocols, automatically
determines the active protocol, or assigns different protocols for parallel and serial
interfaces.
To change the protocol:
1. Make sure the printer is in the Ready state (no data to be printed).
2. Repeatedly press the Protocol button 1. The DEC and PPX24 indicators turn on and off.
The combination of lighted indicators shows the protocol mode selected, according to
the next table.
Courier 10
Draft
HSDraft
Comp. 17
Nimb. PS
HiDraft
Soft Ctrl.
M1
M2
Fault
DEC
PPX24
Set-up/Quit
Top
Exit/Save
Ready
EP2
M2
M1
Control Panel
Indicator Status Active Protocol
DEC lit DEC PPL2 protocol
PPX24 lit IBM Proprinter X24E protocol (LA36N)
IBM Proprinter XL24E protocol (LA36W)
Both lit (EP2) Epson ESC/P2 protocol
Flashing alternately According to Set-Up settings, the printer waits for data to switch
to a proper protocol.
1