Service manual

Epson AcuLaser CX-11N/AcuLaser CX-11NF Field Repair Guide 9/9/05

Printer Component, Software Item, LCD Display, Printer Button Page 50.

Print Quality

Incorrect Colors or Hueing

• Occurs when copying or faxing, but not when printing from a computer.

1. Defective Scanner

Streaks, Lines or Blotches in Print

Reference AcuLaser CX11/CX11F Service Manual Section 3.4.5.3

• Streaks are either continuous or evenly spaced down the page when printing from a computer, when copying

and in received faxes.

1. Photoconductor Unit

2. Toner Cartridge

3. Developer Unit

4. Fuser Assembly

5. Dirty ROS Assembly

6. PWBA Main (ESS)

7. PWBA MCU

When horizontal stripes and spots appear at fixed intervals, it is highly possible that a specific roll has caused the

trouble. If this happens, you might be able to easily solve the problem by measuring the interval between the stripes

or spots on a test print, and checking the relationship between the pitches shown in the table below (note that the

pitch does not necessarily match the perimeter of the roller).

Part (Roller) Name Pitch (mm)

FUSER FUSER ASSY EXIT ROLL 49.1 mm/1.93 inches

PINCH ROLL 25.1 mm/1.0 inches

H/R 84.5 mm/3.33 inches

FUSER BELT 94.5 mm/3.72 inches

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