Service manual

Symptoms, Causes, and Solutions of Bad Images

M000/M009 4-2 SM

4.2 SYMPTOMS, CAUSES, AND SOLUTIONS OF BAD

IMAGES

4.2.1 VERTICAL BLACK LINE AND BAND

Description:

1. Straight thin black vertical lines occur in the printing.

2. Dark black vertical band occurs in the printing.

Symptom and Cause Solution

1. Deformed Doctor-blade or

cleaning-blade, in print cartridge

2. Scratched surface of the charge roller

in the print cartridge.

3. Partial depression or deformation on

the surface of the transfer roller.

1. If causes one or two occur in the print

cartridge, replace the print cartridge

and try to print.

2. Replace the transfer roller if this occurs

as No. three.

CÓPIA NÃO CONTROLADA