Pertech 5300 - Manual (Page 33)

Pertech Resources Inc. November 2005 220321A 27
Trouble Shooting Printer Problems
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
(See 5300 Programing Manuals for details on these and other Compatibility Mode available commands)
Immediate status transmission DLE EOT 10 04 16 4 n
Immediate recovery from fault DLE ENQ 10 05 16 5 n
Immediate peripheral pulse DLE DC4 10 14 16 20 s m n
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.
Error Code Diagnosed failure
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 **
LED Error Fault Mode Diagnostics
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