Xerox M20 - WorkCentre B/W Laser, Service Manual

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December 2006
1-5 WorkCentre M20, 4118, FaxCentre 2218 Family
SCP 4
Service Call Procedures
Image Quality Defects
If the image quality is defective, go to the IQ1 Image Quality Entry RAP.
For image quality specifications, refer to the following:
• IQS 1 Solid Area Density.
• IQS 2 Skew.
• IQS 3 Registration.
Fax Faults
If the machine has a fax fault, go to the 20.3 Fax Faults Without a Message RAP.
Audible noise
If the machine is making an unusual noise, go to the OF4 Audible Noise RAP.
Machine Settings
To make any adjustments to the machine settings, go to ADJ 1.1 Machine Settings.
Waste Toner Contamination
If the machine has waste toner contamination, go to the OF5 Waste Toner Contamination RAP.
Additional Information
If necessary, refer to the following general procedures and information:
• GP 1 Engine Test Mode Entry.
• GP 2 User Mode Entry.
• GP 3 Service Mode Entry.
• GP 4 Fax Setup.
• GP 5 Memory Clear.
• GP 6 Maintenance.
• GP 7 Reports.
• GP 8 Firmware Upgrade.
• GP 9 Identify Sale Date (M20i).
• GP 10 General Disassembly Precautions.
• GP 11 Machine Specifications.
• GP 12 Circuit Description.
• GP 13 Circuit Operation.
• GP 14 Scanner Operation.
• GP 15 Host Interface.
• GP 16 Engine Controller (M20F).
• GP 17 PBA OPE Operation (M20F).
• GP 18 PBA LIU Operation (M20F).
• GP 19 SMPS Unit Operation (M20F).
• GP 20 Acronyms and Parts Description List.
• GP 21 DADF/ADF Document Feeding Specifications.
• GP 22 Paper and Media Specifications.
• GP 23 Service Log.
• GP 24 ADF Test (4118).
• GP 25 DADF Test (2218).
• GP 26 Restriction of Hazardous Substances (RoHS).