Lexmark T650 Series Service Manual

Diagnostic information 2-161
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1 Check the media condition.
Load new, dry, recommended media.
Re-print the defective image.
Does the problem remain?
Go to step 2. Problem solved.
2
Check the toner level.
Is the toner level normal?
Go to step 3. Replace the
print cartridge.
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 transfer roll assembly for contamination and
wear.
Is the above component free of excess wear and
contamination?
Go to step 5. Replace the
transfer roll
assembly.
Go to “Transfer
roll assembly
removal” on
page 4-80.
5
Check the printhead installation.
Is the above component properly installed?
Go to step 6. Reinstall and
adjust the
printhead
assembly.
Go to
“Printhead
assembly
removal
(T650)” on
page 4-59 or
“Printhead
assembly
removal (T652,
T654, T656)” on
page 4-60.
6
Perform a print test.
Does the problem remain?
Contact next
highest level of
tech support.
Problem solved.
Leading edge
Trailing edge

Lexmark T650 Series Specifications

General

Print Technology	Monochrome Laser
Print Speed	Up to 45 ppm
Print Resolution	1200 x 1200 dpi
Monthly Duty Cycle	Up to 200, 000 pages
Standard Output Capacity	250 sheets
Processor Speed	500 MHz
Connectivity	USB, Ethernet
Maximum Paper Size	8.5 x 14 inches
Operating System Compatibility	Windows, Mac OS, Linux
Memory	128 MB, expandable to 640 MB
Standard Input Capacity	650 sheets