Sharp MX-C507P - Page 86

5028
Diagnostics and troubleshooting
52
Action
Yes
No
Step 4
a Place a narrow strip of paper over the gap between the
developers.
Note: Make sure that the paper stays in place when
reinstalling the imaging unit to prevent the laser from
discharging the photoconductors.
b From the home screen, touch Settings > Reports > Print
Quality Pages .
c Check the test page.
Is there vertical banding?
Go to step 5.
Go to step 6.
Step 5
Replace the printhead. See “Printhead removal” on page 397 .
Does the problem remain?
Go to step 6.
The problem is
solved.
Step 6
Check the toner cartridge contacts for damage, and replace if
necessary. See “Toner cartridge contacts removal” on page
365 .
Does the problem remain?
Go to step 7.
The problem is
solved.
Step 7
Turn off the printer, and then check the continuity of the HVPS
cable.
Does the cable have continuity?
Go to step 9.
Go to step 8.
Step 8
Replace the HVPS cable.
Does the problem remain?
Go to step 9.
The problem is
solved.
Step 9
Replace the HVPS. See “HVPS removal” on page 356 .
Does the problem remain?
Go to step 10.
The problem is
solved.
Step 10
Replace the printhhead. See “Printhead removal” on page 397 .
Does the problem remain?
Contact the next
level of support.
The problem is
solved.