Horizontal Band, Voids, Or Streaks - Xerox Phaser 6128MFP Service Manual

Print-Quality Troubleshooting

Horizontal Band, Voids, or Streaks

Initial Actions
5-18
There are areas of the image that are extremely light or are missing entirely. These
missing areas form wide bands which cover a wide area horizontally, perpendicular
to the paper feed direction.
• Check the paper transfer path.
• Ensure there are no debris on the transfer path.
Troubleshooting Reference Table
Applicable Parts
Laser Unit Kit (PL4.1.99)
HVPS Board (PL4.1.19)
Imaging Unit (PL4.1.21)
Toner Cartridge K (PL5.1.21)
Toner Cartridge C (PL5.1.22)
Toner Cartridge M (PL5.1.23)
Toner Cartridge Y (PL5.1.24)
Transfer Belt (PL6.1.7)
IP Board (PL10.6.6)
MCU Board (PL10.7.7)
Troubleshooting Procedure Table
Step Actions and Questions
1 Run the Contamination Check test
print: Service Mode > Test Print >
Contamination Chk
Compare any defects with the Pitch
Chart (page 5-51).
Do any of the horizontal bands
match the chart?
2 Check the paper condition
Is the paper dry and approved for
use?
3 Is the image printed correctly?
4 Inspect the transfer belt surface.
Is there any damage to the belt?
Example Print
Horizontal Band, Void, or Streaks
Yes No
Replace the Go to step 2.
corresponding
parts
Go to step 4. Replace with
dry, approved
paper, then go
to step 3.
Complete Go to step 4.
Replace the Go to step 5.
Transfer Belt
(page 8-103).
Phaser 6128MFP Service Manual