Xerox WorkCentre Pro 423 Service Manual page 269

Poor registration: Copy sample
C - 25
Symptom: Poor registration
(Image position deviated in the copy feed direction or transverse to copy feed direction.)
Cause
Deviation of lead edge registration
• Faulty orientation of Platen
Glass
Deviation of lead edge registration
• Foreign matter in DADF Platen
Baffle, or Skipping of or worn
DADF Feed roller
Deviation of lead edge registration
• Paper transport roller is worn
up to the Drum or worn Spring
Deviation of lead edge registration
• Paper tray end guide is
loose/detached.
Deviation of lead edge registration
• IIT magnification failure in slow
scan direction
Deviation of lead edge registration
• DADF scanning position failure
Deviation of side registration
• Faulty orientation of Platen
Glass
Deviation of side registration
•
Wrong orientation of DADF
Document Guide
WorkCentre Pro 423/428
j0hn3028
Corrective action
• Install Platen Glass correctly. (Fix the glass while
pressing to the left and rear.)
• Execute IIT lead edge registration adjustment.
[06-301] (ADJ 3.1.1)
• Clean the Baffle.
• Execute DADF lead edge registration adjustment.
[21-80] (ADJ 3.1.3)
• Replace Roller and Spring.
• Execute IOIT lead edge registration adjustment.
[20-01] (ADJ 7.2.1)
• Check the structure and replace failure parts.
• Adjust IIT magnification in slow scan direction.
(ADJ 3.1.4)
• Adjust DADF scanning position.
[21-8-] (ADJ 3.1.3)
• Install Platen Glass correctly. (Fix the glass while
pressing to the left and rear.)
• IIT side registration adjustment [06-30]
(ADJ 3.1.2)
• Instruct the customer to load paper correctly.
• Adjust DADF scanning position as needed.
[21-82] (ADJ 3.1.3)
Cause
Deviation of side registration
• Improper loading of paper in
the paper tray.
Deviation of side registration
•
Paper tray side guide is
loose/detached.
3-25 CHAPTER 3 IMAGE QUALITY TROUBLESHOOTING
Corrective action
• Instruct the customer to load paper correctly.
• Adjust IOT side registration. [06-80] (ADJ 7.2.2)
• Check the structure and replace failed parts.
3.3 Image Quality Troubleshooting