Lexmark CS720 User Manual

Action Yes No
Step 1
a From the home screen, touch Settings > Reports > Print
Quality Pages.
b On the Device information section of the print quality test page,
check the CalSet values of the following:
• C Developer operating point
• C Laser operating point
• C Linearization stat
• M Developer operating point
• M Laser operating point
• M Linearization stat
• Y Developer operating point
• Y Laser operating point
• Y Linearization stat
• K Developer operating point
• K Laser operating point
• K Linearization stat
Are the values 0?
Go to step 2. The problem is
solved.
Step 2
Perform the blank or white pages service check. See
“Blank or
white pages check” on page 37.
Was an issue found and resolved?
Go to step 3. Go to step 4.
Step 3
Perform the auto alignment service check. See
“Auto alignment
service check” on page 236.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
a Enter the Diagnostics menu, and then navigate to:
Printer setup > EP setup > Toner patch sensor adjust
b On the sensor gain characterization row, touch Start.
c On the sensor gain verification row, touch Start.
d On the sensor gain verification section of the test page, check
the average signal values of the patch number.
Are the values within the requirement?
The problem is
solved.
Go to step 5.
Step 5
a Remove the imaging kit.
b Move the TPS wiper mechanism lever up and down.
Does the wiper mechanism properly move?
Go to step 8. Go to step 6.
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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