Phaser 3250 Laser Printer Service Manual 5-27
Print-Quality Troubleshooting
Vertical Black Line and Band
There are faded or black lines along the page in the direction of the paper 
travel from the leading edge to the trailing edge.
Initial Actions
■ Check the paper transfer path.
■ Ensure there are no debris on the transfer path.
Troubleshooting Reference Table
Applicable Parts Example Print
■ Transfer Roller, PL1.1.11
■ Print Cartridge, PL1.1.20
Troubleshooting Procedure Table 
Step Actions and Questions Yes No
1 1.Check the Print Cartridge for 
damage.
2.Is the Print Cartridge damaged?
Replace the 
Print Cartridge 
(
page 8-7).
Go to step 2.
2 1.Check the Transfer Roller surface for 
damage.
2.Is the Transfer Roller surface 
damaged?
Replace the 
Transfer Roller
(page 8-10).
Complete.
Vertical Stripes