Xerox 7750DXF - Phaser Color Laser Printer Service Manual page 140

Test
ADC Output Check
Tone Up/Down
Laser Power Check
PWM Mapping Data
Read
Coarse RegiCon Init
Maintenance
Engine maintenance functions
Clean Fuser
Clean Accumulator
Belt
NVRAM Access
access tests, see "Service Diagnostics NVRAM Resets" on page 6-19.
PostScript NVRAM
Reset
Clear Tech Rep
Faults
Reset CRU Life
Counters
Reset Engine
NVRAM
4-12
Front Panel Display
Measuring:
Result = 0
Stop Status = 0
ADC Sensor Fail = 0
ADC shutter Fail - 0
Measuring:
Result = 0 Status = 0
ATC Sensor Fail = None
ATC Limit Warn = None
ATC Change Warn = None
Y=OK M=OK C=OK K=OK
YMCK=OK
YMCK(CycUp)=OK
Fuser Cleaning Sheets
Do you wish to continue?
Yes
No
Motor On
Motor Off
Please cycle power to the
printer now!
You can read or reset, selected NVRAM address locations. For all NVRAM
Clear <4-36>
Clear <9-380 ~ 9-383>
Clear <9-654>
Clear <9-910 ~ 913>
Clear <10-348 & 10-350>
**Writes data to Eng NVM**
Are you sure?
Yes
No
Test Operation Definition
This tests the Automatic Density
Correction sensor.
This tests the Automatic Toner
Calibration sensor.
This tests the laser output.
See "Coarse RegiCon Initialization"
on page 6-12.
Runs five sheets of paper through
the fuser from the default tray.
CAUTION
Accumulator Belt, it is
recommended that you
leave the belt cleaner
installed and perform the
Belt Edge Learn test
instead, see "RegiCon #1
Fine Skew Adjustment" on
page 6-7.
See "Service Diagnostics
NVRAM Resets" on
page 6-19.
Error Code 30
Error Codes 12, 13, 14, & 15
ADC Sensor Error
Imaging Unit type mismatch
Error Codes 40 and 44
Resets the life on individual
routine maintenance items.
This writes data from the
hard drive to the engine
NVRAM.
See "Resetting Engine
NVRAM" on page 6-17.
Phaser 7750 Printer Service Manual
To avoid damaging the