Lexmark CS720 User Manual

Action Yes No
Step 11
Replace the motor. See
“Motor (EP drive) removal” on page
296.
Does the problem remain?
Go to step 12. The problem is
solved.
Step 12
Remove the printhead, and then check the printhead lenses for
dust or debris. See
“Printhead removal” on page 361.
Are the lenses free of dust or debris?
Go to step 14. Go to step 13.
Step 13
Clean the printhead lenses.
Does the problem remain?
Go to step 14. The problem is
solved.
Step 14
Check the HVPS cable on the HVPS and on the JHVPS1 connector
on the controller board for proper connection.
Is the cable properly connected at both ends?
Go to step 16. Go to step 15.
Step 15
Reconnect the cable.
Does the problem remain?
Go to step 16. The problem is
solved.
Step 16
Check the cable for continuity.
Does the cable have continuity?
Go to step 18. Go to step 17.
Step 17
Replace the HVPS cable.
Does the problem remain?
Go to step 18. The problem is
solved.
Step 18
Check the toner cartridge contacts for damage, and replace if
necessary. See
“Toner cartridge contacts removal” on page
328.
Does the problem remain?
Go to step 19. The problem is
solved.
Step 19
Remove the transfer module, and then check the three HVPS
contacts. See
“Transfer module removal” on page 334.
Do the contacts freely move?
Go to step 21. Go to step 20.
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Diagnostic information
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Lexmark CS720 Specifications

General

Type	Original
Compatibility	- CS720
Product color	Black
Printing colors	Yellow
Country of origin	China
Quantity per pack	1 pc(s)
Brand compatibility	Lexmark
Color toner page yield	7000 pages
Cartridge return & recycling	Yes
Print technology	Laser printing
Harmonized System (HS) code	84439990

Weight and Dimensions

Package depth	160 mm
Package width	190 mm
Package height	75 mm
Package weight	380 g