more

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

Page 74
Image 74
Epson RP-U420 manual Dle Enq, Ascii DLE ENQ