TallyGenicom T2265, Maintenance Manual

Page: 85 / 190

Testmodes and Troubleshooting Ignore Printhead
4-19
8. Hardware Alarm Task Code 128 – Automatic Head Gap Adjustment
9. Hardware Alarm Task Code 32 – Function Select
4.7
Ignore Printhead
To allow operating the printer without plugged in printhead (no printhead control, no
temperature control) a special “Ignore Printhead” mode was implemented. You can
achieve it by pressing keys 1, 2 and Setup during power on procedure. Further also
Show-function will be set to on. This is suitable for enhanced test purposes.
Phenomena Countermeasure
No clocks from timing strip – check whether the strip positiones in
the barrier
– check whether the strip is damaged
or lose
– check whether the barrier is plugged
in correctly
– substitute the sensor (light barrier)
Missing clocks from timing strip inter-
mittent (printout is moving horizontally
until carriage blocks on any side panel) – substitute head adapter cable;
replace it with level C
– substitute light barrier (horizontal
sensor)
– check ,,noisy“ environment: interface,
main controller, CR-motor
Reason Solution
AGA Flag defective or missing Substitute AGA flag on indicator axle
System not adjusted Switch printer on without paper loaded
Phenomena Countermeasure
AGA shows correct value (Show func-
tion) but the printout is not correct or
the printer prints but no impact on the
paper – check whether the white damper on
each side are hanging / blocking
– check whether the excentric wheels
on both sides are mounted parallely
– check basic head distance
Reason Solution
Tractor drive does not engage – check mechanic of tractor 1/2 drive
– check function sensor
– replace optical sensor by magnetic
sensor
Initializing
Online
Setup
2 1
3
4