Lexmark CS720 User Manual

Action Yes No
Step 7
a Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustments > Sensor tests
b Find the sensor (Duplex path 2).
Does the sensor status change while toggling the sensor?
Go to step 10. Go to step 8.
Step 8
Check the sensor cable for proper connection and damage, and
replace if necessary.
Does the problem remain?
Go to step 9. The problem is
solved.
Step 9
Check the sensor for damage, and replace if necessary.
Does the problem remain?
Go to step 10. The problem is
solved.
Step 10
a Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustments > Motor tests > Isolation
b Tou ch Start.
Does the motor run?
Contact the next
level of support.
Go to step 11.
Step 11
Check the motor cable for proper connection and damage, and
replace if necessary.
Does the problem remain?
Go to step 12. The problem is
solved.
Step 12
a Replace the isolation unit. See “Isolation unit removal” on
page 371.
b Perform a print job.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Sensor (duplex path 2): Paper (duplex job) cleared too early service check
Action Yes No
Step 1
a From the home screen, touch Settings > Device > Preferences.
b Check if the paper size matches the size set on the tray guides.
Does the paper size match the size set on the tray?
Go to step 3. Go to step 2.
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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