Density Changes At Cis Joints - Ricoh B286 Service Manual

5. Horizontal line broken at 150 mm from center.
Possible causes:
! LPH subscan timing error at joint position

4.6.4 DENSITY CHANGES AT CIS JOINTS

Case 1: Dark image density at CIS1, CIS3, and CIS5.
Possible causes:
! The main machine is installed near a window. Direct sunlight is hitting the CIS units
inside the scanner unit.
Case 2: Dark image density at CIS2 and CIS4.
Possible causes:
! The white plate is not flat against the original.
SM
Image Problem Troubleshooting
4-43 B286/B289