Epson E02 manual Printer Operation by the UDP Commands, Commands Packets

UB-E02 Technical Reference Guide

4.7 Printer Operation by the UDP Commands

By using the UDP commands, the following information can be received in order to recover from abnormal operations and errors.

Function Code	Packet	Function
03-0000	Q	Acquires basic information
03-0010	Q	Acquires status
03-0011	C	Off-line forced transmission
03-0012	C	Reset
03-0013	C	Buffer flash
03-0016	C	Clears connection time-out timer

4.7.1 Commands Packets

Off-set	Size	Packet Transmission	Packet Reply
0	5	Character string “EPSON”	Character string “EPSON”
5	1	Packet type:	Packet type reply:
		’Q’: Query	’q’: Query reply
		’C’: Command	’c’: Command reply
6	1	Device type (0 ⋅ 03 fixed)	Device type (0 ⋅ 03 fixed)
7	1	Device number (0 ⋅ 00 fixed)	Device number (0 ⋅ 00 fixed)
8	2	Function number	Function number
10	2	0 ⋅ 00, 0 ⋅ 00 fixed	Result code
12	2	Length (n)	Length (n)
14	n	Command parameter	Reply data

The following values are replied for the packet reply result codes. Check the results in an application.

❏0000h: Normal end

❏FFFEh: No device requested

❏FFFFh: Function requested are not supported

Rev. A 4-7Programming Samples