Dell Multifunction Laser Printer 5535dn, Руководство по обслуживанию

Страница: 189 / 657

Diagnostic information
2-157
Vertical lines and bands (process direction)
Step Check Yes No
1 Check the media condition.
Load new, dry, recommended media.
Re-print the defective image.
Does the error continue?
Go to step 2. Problem solved.
2 Is the media transfer route and the media path clear of
debris? Go to step 3. Remove debris or
contamination.
3 Check the laser beam route.
Check for debris between the printhead assembly and the
PC drum.
Is the laser beam route free of debris and the glass
window, in the printhead assembly, free of contamination?
Go to step 4. Remove debris or
clean the
printhead
assembly window.
4 Check the print cartridge for proper installation.
Is the above component properly installed?
Go to step 5. Inspect, clean and
reinstall replace
the print cartridge.
5 Check the transfer roll assembly for contamination and
wear.
Is the above component free of excess wear and
Go to step 6. Replace the
transfer roll
assembly.
6 Check the printhead assembly for proper connection.
Is the above component properly connected?
Replace the
printhead
assembly. Replace the
connections.
7 Perform a print test.
Does the problem remain?
Contact next
highest level of
tech support. Problem solved.
Leading edge
Trailing edge
contamination? Go to “Transfer
roll assembly
removal” on
page 4-56
.
assembly
page 4-34 .
Go to “Printhead
removal” on