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Phaser 7700 Color Laser Printer Service Manual
6-149
Service Diagnostics NVRAM Resets
PostScript NVRAM Reset
Resetting the printer setup values resets the job defaults, front panel
language, Intelligent Ready, multi-purpose setup, tray 1 - 4 setup, Startup
Page, front panel intensity, front panel contrast, postscript error information
and E
NERGY
S
TAR
TM
timeout to their default values.
1.
Enter Service Diagnostics.
2.
Highlight NVRAM Access and press OK.
3.
Highlight PostScript NVRAM Reset and press OK.
4.
Select the specific entry desired and press OK.
The printer now exits Service Diagnostics and reboots. While booting,
NVRAM is reset.
Clear Tech Rep Faults
The following printer faults can occur during normal operation, and the normal
procedure is to isolate and repair the problem. However, with these particular
faults, an additional step is required. A value has been written in the engine
NVRAM that requires clearing before the printer can be used. Some faults
require three occurrences before the fault is generated.
Note
To clear a Tech Rep Fault, you must disconnect the
Finisher option.
The following functions generate a Tech Rep Fault:
■
Belt Home Too long - Error: 30
■
ATC-YMCK Sensor Fail - Errors: 12, 13, 14, 15
■
ADC Sensor Fail Errors - Engineering use only
■
Print Cart. YMCK Type Mismatch - Engineering use only
■
Fuser Main/Sub Lamp Temp Too High - Errors: 40, 44
1.
Enter Service Diagnostics.
2.
Highlight NVRAM Access and press OK.
3.
Highlight Clear Tech Rep Faults and press OK.
4.
Highlight the Link Code to be reset and press OK.
Reset CRU Life Counters
For Engineering use only.
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