Tektronix PHASER 840 Quick Reference Manual page 44

Table 4 Front panel and fault history log error codes and messages
Error code
16,002.44 (0x8402):
TCP_THERMISTOR_
SHORT
16,003.45 (0x8403):
TCP_THERMISTOR_
HOT
16,004.46 (0x8404):
TCP_THERMISTOR_
SLOW
19,000 Head
Calibration Fault
19,001.4X
HC_DEV_FAULT (0x01)
19,002.4X
HC_DEV_FAULT (0x02)
22,700: Media jams
22,703,0C DECLARED
JAM
22,704,0C DECLARED
JAM
22,705,0C DECLARED
JAM
22,707,0C DECLARED
JAM
22,708,0C DECLARED
JAM
22,721,0C DECLARED
JAM
22,722, 0C DECLARED
JAM
34 Phaser 840 Color Printer
Meaning
The preheater thermistor appears to be shorted. Replace
the paper preheater.
The preheater heater is running away. Unplug the printer
NOW!
The preheater heater is not heating at all, or is not heating
as quickly as it should. Check for an open connection or
open thermistor in power supply.
Occurs during the scales and offset calibration. If this
process fails a fault is declared. Any part in the chain
could be responsible for the incorrect reading including
the print head electronics, the A/D electronics, the
waveform generation electronics, power supply, Wave
Amplifier (on the power control board), print head
interconnect cable, etc.
Occur when the printer is attempting to determine how
many data taps the print head uses. If this process fails
an fault is declared. Any part in the chain could be
responsible for the incorrect reading including the print
head electronics, the A/D electronics, the waveform
generation electronics, power supply, Wave Amplifier (on
the power control board), print head interconnect cable,
etc.
Stall event
Sensor failure
Media jam at exit tray
Media too long at exit tray
Media too short at exit tray
Media not staged at preheater entry in time for transfix
Media jam at stripper fingers