Tektronix Phaser 840, Service Manual

Page: 98 / 207

Service Guide 87
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13,002.41 and 13,018.48: A jet stack thermistor appears to be shorted.
Reseat or replace the gray data cable. If the error reoccurs, replace the
printhead. If the new printhead gives same error, replace the power
control board.
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13,033.45 error: the thermistor in the reservoir appears to be open. If the
4-pin connector on the top of the driver board is disconnected, this error
will occur. Turn off the printer and reseat the cable.
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13,034.46: thermistor appears to be shorted. Look to see if the 4-pin plug
on the top of the driver board is plugged in correctly. If it is, check the
gray data cable. If the gray data cable is good, replace printhead. If the
error happens on the new printhead, replace the power control board.
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13,035.47 and 13,036.48: reservoir heater is running away, or reservoir is
not heating. With these errors it is most likely a problem with the
printhead.
Note
A broken ink loader can cause the cap/wipe/purge assembly
gasket to not seal. Look for signs of breakage of the black plastic
parts on the ink loader’s underside, especially the bosses that
retain the lowest black plastic panel. Breakage or separation can
interfere with head tilt, resulting in a poor seal with the cap/wipe/
purge assembly during the purge process. Replace the ink loader
if broken or defective.
Inadvertently disconnected thermistor cable connector