![background image](http://html.mh-extra.com/html/xerox/docuprint-c55/docuprint-c55_service-manual_883399065.webp)
2/99
IMAGE QUALITY RAPs
DocuPrint C55/C55mp/[NC60]
3-9
IMAGE QUALITY DEFECTS
Defect Name / Description
Possible Causes
Corrective Action
14. DARK DENSITY (ALL COLORS).
1. Color Balance out of adjustment.
1. Perform the Density and Color Balance
Adjustment. (ADJ. 3.1).
2. Developer near end of life.
2. Check % remaining (from the Menus).
Replace as required.
3. Print Drum Module failure.
3. Replace the Print Drum Module.
4. Print Drum Arcing.
4. Refer to OF8 Arcing RAP in Section 2.
5. New developer assembly did not initialize.
5. Run a Diagnostic Sheet and check the Toner
Concentration Setpoints for newly installed
developer assembly. If the Setpoints are at
70 (default), replace the developer assembly.
6. No charge.
6. Refer to BSD 9.4 and check the RED leads
to the Print Drum Module for an open.
7. Temperature/RH Sensor failure.
7. If the readings on the diagnostic sheet are
out of range (RH=0 or RH > 100, or
Temp=0), refer to the chart below:
If the wiring checks OK, replace the Tem-
perature/Humidity Sensor.
Diag.
Sheet
Refer to BSD 9.19 and check
:
RH=0
CN105-1, Humidity Sense, for a short to ground.
RH > 100
CN105-1, Humidity Sense, for an open.
CN105-2, Humidity Sense, GND for an open.
Temp=0
CN105-5, Temp. Sense, for an open or short to
ground.
Summary of Contents for DocuPrint C55
Page 14: ...SERVICE CALL PROCEDURES 2 99 NOTES 1 6 DocuPrint C55 C55mp NC60 Notes ...
Page 56: ...OTHER FAULTS RAPs 2 99 NOTES 2 42 DocuPrint C55 C55mp NC60 NOTES ...
Page 76: ...IMAGE QUALITY SPECIFICATIONS 2 99 NOTES 3 20 DocuPrint C55 C55mp NC60 NOTES ...
Page 130: ...REPAIRS ADJUSTMENTS 2 99 NOTES 4 42 DocuPrint C55 C55mp NC60 NOTES ...
Page 216: ...GENERAL PROCEDURES 2 99 NOTES 6 18 DocuPrint C55 C55mp NC60 Notes ...
Page 252: ...GENERAL PROCEDURES 2 99 NOTES 6 54 DocuPrint C55 C55mp NC60 NOTES ...
Page 272: ...GENERAL PROCEDURES 2 99 NOTES 6 74 DocuPrint C55 C55mp NOTES ...
Page 274: ...GENERAL PROCEDURES 2 99 NOTES 6 76 DocuPrint NC60 NOTES ...