Tektronix Phaser 840, Service Manual

Page: 46 / 207

Service Guide
35
4,014.44
PC_DEV_FAULT_6x6DP
I_CAL Calibration Failure: Defined but not used.
4,015.45
PC_DEV_FAULT_HEAD
_ADJUST_TIMEOUT The engine spent over 20 minutes in the printhead
adjust-state. The engine declares a device fault and shuts
down, rather than leave a hot heater against a cold drum
for an indefinite period. Remove the adjustment tools and
cycle power
4,016.46
PC_DEV_FAULT_HEAD
_NV_FORMAT The printhead format number, stored in printhead NVRAM,
is not understood by this version of engine firmware. Verify
the correct printhead is installed. Replace the printhead
4,016.68 Bad Message in main pc_ready message loop. The
engine code received an unexpected message while the
printer was in the ready state waiting for a command from
PostScript interpreter. Typically this message is a
PM_RESULT_OK message that is the result of a previous
command to PM to tilt back the printhead. The odd
behavior is that PC is not waiting for the operation to finish.
4,017.47
PC_DEV_FAULT_
AMBIENT_TOO_COLD Ambient temperature has fallen to less than 10
o
C.
Something may be wrong with a heater.
4,018.48
PC_DEV_FAULT_LATE_
CLEAN_REQUEST After the printer determined, at power-up, that the
printhead was warm enough not to need cleaning, and
while the printer was warming up, the printhead
temperature dropped below the head-clean-needed
threshold. Something may be wrong with a heater.
4,019.40
PC_DEV_FAULT_
193DPI_CAL Calibration Failure: Target Volt-Sec Area of Fast Color
mode could not be achieved. Check the printhead cabling.
Replace the printhead.
4,020.41
PC_DEV_FAULT_FTTR
_HEADCAP Declared when the printer is booted and the head/cap
contact flag is set in NVRAM. The printer cannot run with
the head and cap/wipe/purge unit in contact because it
would be unwise to separate the two when the printhead is
cold.
04,021.4x
PC_DEV_FAULT_FTTR
_DIRTYDRUM Declared when the printer is booted and the drum is dirty.
Cleaning the drum when very cold could increase the
chance of gluing media to the drum surface and creating a
mess around the stripper fingers.
4,023.66 Cannot tilt head forward. The engine was attempting to do
something that required the printhead to be in print
position. The printhead was not in position and some
condition was preventing the code from tilting it.
Table 4 Front panel and fault history log error codes and messages
Error code Meaning