Image Problem Troubleshooting; Flow Chart - Ricoh Aficio 480W Dolphin-C2 Service Manual

28 April 2005

4.4 IMAGE PROBLEM TROUBLESHOOTING

4.4.1 FLOW CHART

Image
Problem
VDB Test
pattern output
OK
IPU Test
pattern output
OK
CIS defective or
Harness defective
between the IPU and
the CIS.
NOTE: For the VDB/IPU test patterns, use SP2902.
IMAGE PROBLEM TROUBLESHOOTING
NG
Problem image
area 1/3 unit.
NO
VDB Defective
IPU Defective or
NG
Harness defective
between the IPU
and the VDB.
4-21
YES
LPH Defective
NG
B188T901.WMFF