HP color laserjet 2550 series Manuale Di Servizio

3. Warranty Note. This section contains information about how the printer warranty is

affected when you use non-HP supplies. It also requests that you call the HP fraud
hotline if a supply that is being detected as a non-HP supply was sold to you as a
genuine HP supply. (See the HP Color LaserJet 2550 Series Printer User Guide for
information about the HP fraud hotline.)

4. Ordering Information. This section contains basic information about how to order new

HP supplies.

5. Recycling Information. This section contains information about the Web site you can

visit for information about recycling.

Use a ruler to measure occurrences of repetitive image defects to help solve image quality
problems. Place the ruler next to the first occurrence of the defect on the page. Find the
distance between identical defects and see 

 to identify

the component that is causing the defect.

22.1 mm (.87 inch)

Pre-ICL roller

33.9 mm (1.33 inches)

Developer sleeve

37.9 mm (1.49 inches)

ICL roller

38.1 mm (1.50 inches)

Charge roller

41.9 mm (1.65 inches)

RS roller

44.3 mm (1.74 inches)

T1 transfer

56.9 mm (2.24 inches)

T2 transfer

66.6 mm (2.62 inches)

Pressure roller

75.6 mm (2.98 inches)

Fuser film

89.0 mm (3.50 inches)

Transfer belt drive roller

90.0 mm (3.54 inches)

Transfer belt tension roller

148.3 mm (5.84 inches) Cartridge drum

ENWW

Troubleshooting tools