WorkCentre 3210/3220 Multifunction Printer Service Manual 5-21
Print-Quality Troubleshooting
Horizontal Black Line and Band
There are black lines running parallel with the leading edge of the print,
perpendicular to the direction of the paper travel. This can occur when the
high voltage contacts to the Print Cartridge are damaged or dirty. Staining of
Print Cartridge components can also cause horizontal banding.
Initial Actions
■ Check the connection between the HVPS and Print Cartridge.
■ Check Print Cartridge life.
Troubleshooting Reference Table
Applicable Parts Example Print
■ Print Cartridge, PL1.0.21
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Clean all Print Cartridge contacts.
Does the image quality improve?
Complete. Go to step 2.
2 Does the defect occur at a regular
interval?
■ Charge roller = 26.7mm
■ Supply roller = 47.1mm
■ Develop roller = 35.2mm
■ Transfer roller = 47mm
Clean the right
side OPC Drum
gear.
Go to step 3.
3 Check the right side OPC Drum gear
for damage.
Is the Gear damaged?
Replace the
Print Cartridge
(
8-7).
Complete.
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