4. Troubleshooting
11)
Blank page
Description : The back of the page is stained.
Check and cause
Solution
The ground contact of laser toner cartridge or imaging unit
is bad.
Clean the ground terminal of laser toner cartridge or imaging
unit. If the problem persists, replace it.
LSU is defective.
Replace the LSU.
The connection between the main board and HVPS board
is bad.
Reconnect the harness. If the main board or HVPS board
is defective, replace it.
12)
Partial image void
Description : The partial void occurs in the printed page.
Check and cause
Solution
The printer is not installed on flat ground.
Install the printer on flat ground. Print 10 sample pages for
test.
The developer circulation in the laser toner cartridge or
imaging unit is bad.
1) Shake the imaging unit 2~3 times from right to left.
Reinstall the imaging unit. Print 10 sample pages
for test.
2) If the problem persists, replace the laser toner
cartridge or imaging unit.
The contact between imaging unit and transfer roller is bad.
Check if the imaging unit and transfer roller are installed
properly.
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