TallyGenicom 2365, Руководство по обслуживанию

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Monitoring of Thermo-ASIC and Printhead Testmodes and Troubleshooting
4-22
4.5
Monitoring of Thermo-
ASIC and Printhead
After Power On the Thermo-ASIC will be tested. Is there a problem the display will
show a bitcoded message THS ERROR XXX (XXX = Failure number from 1 trough
16). The message is active approx. 20 s and will be deleted by pressing any key.
Bit 1 = 1 (xxx = 001) low current error
Cable of printhead is broken, coil defect, contact of connector bad
Bit 2 = 1 (xxx = 002) high current error
constant current generator defect, Thermo – ASIC defect, short in coil system
Bit 3 = 1 (xxx = 004) Rref error
Printhead ID wrong, Reference resistor wrong or missing or contact failure
Bit 4= 1 (xxx = 008) Eeprom values wrong
calibrating of printhead not ok., Eeprom defect, Thermo – ASIC defect
Above mentioned failure possibilities might occur as combinations. Example: xxx = 9;
9 = 1001 binary = failure 1+4
Behavoir in case of failure:
If a THS-ERROR is recognized the ASIC will be switched off by firmware. To make
printout nevertheless possible the print will be stopped shortly at the end of the line
to protect overheating of the printhead.
4.5.1
Calibrating Values of
Thermo-ASIC and
Printhead*
By pressing the keys ONLINE and SETUP you will enter the service menue. After that
the display changes as follows:
Printers with NDK9 and NDK9MC do not need any calibration (see Chapter 4.11).
* For printers with NDK9+ printheads only.
*
Print Temp.cal
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