Black Or Blank Page Copy Service Check - Konica Minolta bizhub 4020 Service Manual

4.8.7

Black or blank page copy service check

Actions
Step 1
Print a menu page or a page from the host.
Is the page black?
Step 2
Is the copy an ADF scan?
Step 3
Run a flatbed copy.
Is it blank or black?
Step 4
Did the sheet feed into the ADF?
Step 5
Is the CCD ribbon cable properly connected to JCIS1 on the
controller board?
Step 6
Replace the flatbed unit. See
Did this fix the problem?
Step 7
Replace the controller board. See
Did this fix the problem?
bizhub 4020/3320 Service Manual
Flatbed assembly removal.
Controller board removal.
- 163 -
Yes No
See Printer is printing Go to step 2.
solid black pages.
Go to step 4. Go to step 3.
Go to step 5. Go to step 4.
Go to step 5. Perform an ADF
paper feed test.
Go to step 6. Properly connect the
ribbon cable to
JCIS1.
The problem is Go to step 7.
solved.
The problem is Consult the next
solved. level of support.