Lexmark CS720 User Manual

Background or gray background check
ABCDE
ABCDE
ABCDE
Leading edge
Trailing edge
Action Yes No
Step 1
a From the home screen, touch Settings > Reports > Device >
Device Statistics.
b Check the status of the imaging unit if it was recently replaced.
Does the status show that the imaging unit was recently replaced?
Go to step 2. Go to step 3.
Step 2
Check if only one color is producing the background of the print
job.
Is only one color producing the background?
Go to step 3. Go to step 4.
Step 3
• If the
aected
color is cyan, magenta, or yellow, then replace
the developer unit of the aected color.
• If the aected color is black, then replace the imaging unit.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
Replace the imaging kit.
Does the problem remain?
Go to step 5. The problem is
solved.
Step 5
Reseat the HVPS cable on the HVPS and on the JHVPS1 connector
on the controller board.
Does the problem remain?
Go to step 6. The problem is
solved.
Step 6
Check the contact pins connecting the HVPS to the transfer
module for damage.
Are the contact pins damaged?
Go to step 7. Go to step 8.
Step 7
Replace the HVPS. See
“HVPS removal” on page 319.
Does the problem remain?
Go to step 8. The problem is
solved.
5028
Diagnostic information
36

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