Repeating Defects; Print Cartridge; Transfer Roller; Fuser - Xerox Phaser 3500 Service Manual

Repeating Defects

Some image-quality problems can be associated with specific assemblies, the most common
problems and the associated assemblies are listed below. Also, see the specific image-quality
troubleshooting procedure for more information.

Print Cartridge

■ Streaks
■ Fine Lines
■ Banding in Process Direction
■ Uneven Density
■ Voids
Repeating Defects
■

Transfer Roller

■ Toner on the back side of the printed page (simplex mode)
■ Light Prints
■ Repeating Defects
■ Spots on Image

Fuser

■ Hot or Cold Offsetting
■ Repeating Defects
■ Voids

Repeating Defects Measurement Table

Assembly Component
Print Cartridge Developer Roller
Drum
Drum Charge Rollers
Supply Roller
Transfer Roller Transfer Roller
Fuser Assembly Heat Roller
Pressure Roller
Distance between
Defects
50 mm (1.97 in.)
94 mm (3.70 in.)
38 mm (1.50 in.)
42 mm (1.65 in.)
56 mm (2.20 in.)
126 mm (4.96 in.)
126 mm (4.96 in.)
Phaser® 3500 Laser Printer Service Manual
3-3
image-quality Troubleshooting
Typical Defect
Horizontal image band
White spots on black image
or black spots on white
Black spots
Light or dark horizontal
image bands
Image ghost
Black spots and image
ghost
Black spots on back