Repeating Defect Measurement - Xerox Phaser 3300 Servce Manual

Repeating Defect Measurement

Phaser 3300MFP Service Manual
When horizontal lines and/or spots occurs periodically, it is possibly caused by
a defect on a particular roller. Measure the interval of the defect on the test
print and check the relation to the roller in the table. The interval does not
necessarily match the circumference of the roller.
If abnormal image prints periodically, check the parts shown below.
Abnormal
image
No Roller period
1 OPC Drum 75.5 mm
2 Charge Roller 37.7 mm
3 Supply Roller 53.2 mm
4 Developing 39.2 mm
Roller
5 Transfer Roller 47.1 mm
6 Heat Roller 88.9 mm
7 Pressure Roller 101.3 mm
2
4
3 1
5
Kind of
abnormal Part to
image replace
White spot, Print Cartridge
Black spot
Black spot Print Cartridge
Horizontal Print Cartridge
density band
Horizontal Print Cartridge
density band
Black side Transfer Roller
contamination
/transfer fault
Black spot and Fuser
fuser ghost
Black side Fuser
contamination
Print-Quality Troubleshooting
6
7
s3300mfp-169
Parts List
5-9