2WIRE F-116P User Manual

Alignment and Troubleshooting

4-71

4.2.7 Copy Problems

1) Black Copy

Description : Black page is printed out when copy.

1. Check the Scan-Cover open.

Room light can pass through a
thin original.

Remake shading profile in the
tech mode.

2. Check shading profile.

3. Check white/black reference

voltage in Main PBA.

Replace U60 if it is defective.
. U60-154 = 0.5V
. U60-155 = 3.3V