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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
Summary of Contents for Phaser 840
Page 11: ...xii Phaser 840 and 850 Color Printers ...
Page 65: ...54 Phaser 840 and 850 Color Printers ...
Page 101: ...90 Phaser 840 and 850 Color Printers ...
Page 125: ...114 Phaser 840 and 850 Color Printers ...
Page 134: ...Service Guide 123 Clearing PostScript NVRAM menu item ...
Page 135: ...124 Phaser 840 and 850 Color Printers ...
Page 166: ...Service Guide 155 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 9 9 ...
Page 170: ...Service Guide 159 Figure 3 Paper path FRUs 0388 80 2 1 5 11 10 9 12 6 4 3 7 13 8 11a 11b ...
Page 172: ...Service Guide 161 Figure 4 Motor and fan FRUs 0388 14 7 4 3 5 6 2 1 ...
Page 174: ...Service Guide 163 Figure 5 Circuit board FRUs 4 3 5 2 1 9 7 6 8 10 11 13 0388 81 12 7a ...
Page 176: ...Service Guide 165 Figure 6 Solenoid and clutch FRUs 4 5 3 2 1 0388 23 ...
Page 182: ...Service Guide 171 Figure 9 High capacity PaperTray 0388 65a 1 2 ...