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
Kommentare zu diesen Handbüchern