Epson RP-U420 manual Dle Enq, Ascii DLE ENQ

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C O N F I D E N T I A L					■■ ■■ ■■	more
DLE ENQ					EXECUTING COMMAND
[Name]	Real-time request to printer
[Format]	ASCII	DLE	ENQ	n
	Hex	10	05	n
	Decimal	16	5	n

[Range]

[Default]

[Description]

1 ≤ n ≤ 3

None

Responds to a request from the host specified by n. The operations performed depend on the value of n, as follows:

n = 1: Recover from an error and restart printing from the line where the error occurred.

	n = 2:	Clear the receive and print buffers and recover from an error.
	n = 3:	Cancel waiting for validation.
[Notes]	■ The printer executes this command upon receiving this command.
	■ With a serial interface model, this command is executed even in the offline, receive buffer-full, or error

states.

■ With a parallel interface model, the printer cannot receive data when it is busy; therefore this command cannot be used under the following conditions.

• When DIP Switch 1-6 is On: receive buffer-full.

• When DIP Switch 1-6 is Off: receive buffer-full, offline, error states.

■ This command is executed any time the data sequence <10>H<05>H<n> (1 ≤ n ≤ 3) is received, even if it appears as part of another command.

<Example>

In ESC * m nL nH d1 ... dk, d1=<10>H, d2=<05>H, d3=<1>

■This command should not be used within the data sequence of another command that consists of two or more bytes.

<Example>

If you attempt to transmit ESC ! n to the printer, but DLE ENQ 3 interrupts before n is received, the code <10>H for DLE ENQ 3 is processed as the code for ESC ! <10>H.

RP-U420 Miscellaneous commands DLE ENQ Ver. 1.0 p. 74