Paxar 9401 manual Exception Packets, Printer Status Codes

11. Online Information

The host should wait for any reponse before sending further data. If the host sends data to the printer before the printer responds to a request, the printer will cancel the reponse by sending a carriage return with no data to the host. It then processes the new data.

Exception Packets

This section describes exception packets, including their syntax.

Syntax	{E,"#,[message]" p }
E	is a constant, indicating that the data stream is an
	exception packet.
#	A code indicating what the printer should do. Values are
	as follows:
	0	Print message on line 1 of the display.
	1	Provide input.
	2	Print message on line 1 of the display and provide input.
	3	Sound a tone.
	4	Print message on line 1 of the display and sound a tone.
	5	Sound a tone and provide input.
	6	Print message on line 1 of the display, sound a tone,
		and provide input.
message	A message used to perform the action specified in #. It
	cannot be more than 15 characters long. Use message
	only with actions 0, 2, 4, and 6. If you specify message
	with actions 1, 3, or 5, the printer will ignore it.

Online Information

Example {E,"2,Scan bar code" p }

This example displays Scan bar code on line 1 of the printer display and enables the printer operator to provide input to the host.

Printer Status Codes

The printer sends one of the following return codes to the host after receiving a packet

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