Tektronix PHASER 840 Service Manual page 51

Table 4 Front panel and fault history log error codes and messages
Error code
13,000:Printhead thermals Printhead thermal faults are determined by a thermistor
in the printhead. Ensure that there is adequate clearance for airflow (at least 4 inches
(10 cms.) on all sides) and that the room temperature is below 90
13,001.40:
TCH_JS_LEFT_OPEN
13,002.41
TCH_JS_LEFT_SHORT
13,003.42:
TCH_JS_LEFT_HOT
13,004.43:
TCH_JS_LEFT_SLOW
13,017.47:
TCH_JS_RIGHT_OPEN
13,018.48:
TCH_JS_RIGHT_
SHORT
13,019.40):
TCH_JS_RIGHT_HOT
13,020.41:
TCH_JS_RIGHT_SLOW
13,033.45:
TCH_RESERVOIR_
OPEN
13,034.46:
TCH_RESERVOIR_
SHORT
13,035.47:
TCH_RESERVOIR_HOT
13,036.48:
TCH_RESERVOIR_
SLOW
40
Phaser 840 and 850 Color Printers
Meaning
The thermistor in the left jet stack appears to be open.
Check the printhead cabling. Replace the printhead.
The thermistor in the left jet stack appears to be shorted.
Check the printhead cabling. Replace the printhead.
The left jet stack heater is running away. Unplug the
printer NOW! Check the printhead cabling. Replace the
printhead.
The left jet stack heater is not heating at all, or is heating
too slowly. Ensure the printer is not located next to an
air-conditioning duct. Check that the printhead-to-drum
gap is not too close (the drum can act as a heatsink).
Inspect the printer wiring. Replace the printhead.
The thermistor in the right jet stack appears to be open.
Check the printhead cabling. Replace the printhead.
The thermistor in the right jet stack appears to be shorted.
Check the printhead cabling. Replace the printhead.
The right jet stack heater is running away. Unplug the
printer NOW! Check the printhead cabling. Replace the
printhead.
The right jet stack heater is not heating at all, or is not
heating as quickly as it should.
The thermistor in the reservoir appears to be open. Check
the printhead cabling. Replace the printhead.
The thermistor in the reservoir appears to be shorted.
Check the printhead cabling. Replace the printhead.
The reservoir heater is running away. Unplug the printer
NOW! Check the printhead cabling. Replace the
printhead.
The reservoir heater is not heating at all, or is not heating
as quickly as it should. Check the printhead cabling.
Replace the printhead.
o o
F (35 C).