Lexmark CS720 User Manual

Action Yes No
Step 4
Reconnect the cable.
Does the problem remain?
Go to step 5. The problem is
solved.
Step 5
Replace the fuser fan. See
“Fuser fan removal” on page 299.
Does the problem remain?
Go to step 6. The problem is
solved.
Step 6
Replace the controller board. See
“Controller board removal” on
page 357.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Main fan service check
Action Yes No
Step 1
Check the main fan area for obstructions.
Is the fan area free from obstructions?
Go to step 3. Go to step 2.
Step 2
Remove the obstructions.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
Check the cable on the JFAN2 connector on the controller board
for proper connection.
Is the cable properly connected?
Go to step 5. Go to step 4.
Step 4
Reconnect the cable.
Does the problem remain?
Go to step 5. The problem is
solved.
Step 5
Replace the main fan. See
“Main fan removal” on page 301.
Does the problem remain?
Go to step 6. The problem is
solved.
Step 6
Replace the controller board. See
“Controller board removal” on
page 357.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
5028
Diagnostic information
200

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