Lexmark CS720 User Manual

Action Yes No
Step 1
a Enter the Diagnostics menu, and then navigate to:
Advanced Print Quality Samples > Advanced Print Quality
Samples
b Check the test page.
Is only one color producing the defect?
Go to step 2. Go to step 4.
Step 2
• 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 3. The problem is
solved.
Step 3
Replace the photoconductor unit.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
Replace the transfer module. See
“Transfer module removal” on
page 334.
Does the problem remain?
Go to step 5. The problem is
solved.
Step 5
Replace the fuser. See
“Fuser removal” on page 333.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Image void scan direction check
Action Yes No
Step 1
Load paper from a fresh package.
Note: Paper may absorb moisture due to high humidity. Store
paper in its original wrapper until it is ready to be used.
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
Reseat the imaging kit, and then perform a print job.
Does the problem remain?
Go to step 3. The problem is
solved.
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Diagnostic information
49

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