Pertech 5300 User Manual

The printer will enter a Fault Mode and will not operate when certain failure conditions are encountered.  Confirmation 

of this condition can be accomplished by the host on the DTR (pin 8) or status with an RS-232 interface.

A Printer in fault mode will not feed paper when the paper advance button on the top cover is depressed nor will it 

execute commands other than immediate commands that are executed even when the printer is in a fault condi-

tion. Immediate commands are high-level commands that are typically executed prior to low-level commands that 

are stored in the input buffer. They are received and processed regardless of the printer’s fault state or communica-

tions interface busy status. 

ACL Control Language Immediate Commands

Immediate status transmission

DLE  EOT

10  04

16  4

Immediate recovery from fault

DLE  ENQ

10  05

16  5

Immediate peripheral pulse

DLE  DC4

10  14

16  20

Immediate printer reset

DLE  @

10  40

16  64

The color of the Power LED on the front panel of the printer will change from Green to Red if a fault condition is en-

countered.  Depressing the paper feed button on the printer cover will cause the printer to enter diagnostic mode.  This 

will cause the LED to flash a 3 bit code to define the specific reason the printer entered Fault Mode.  The error code is 

followed by a delay before being repeated.  The diagnostic code will toggle the DTR line and flash the Red LED if the 

RS-232 interface is selected.  It will toggle the fault line and flash the green led if parallel interface is selected.

* Clamp functionality, wiper engage and disengage 

** Failed sensor, control board problem, mechanical problem or dirty sensor. The later  has 

proved to be the most common and can be resolved by cleaning paper dust and  other debris 

from the sensors and code wheel. 

***Failures diagnosed with error codes indicating a problem with the firmware or control board.

The printer will remain in FAULT Mode until the power is cycled or the printer is reset with a imediate reset command. 

Dot 

Dot

Dash

Mechanical Error (most likely compensator, wiper problem)*

Dot

Dash

Dot

Ram Error*** 

Dot 

Dash

Dash

Program Error / Firmware Error***

Dash

Dot

Dot

 Home Sensor Error **

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