Lexmark CX310 Service Manual

Printhead service check
Actions Yes No
Step 1
POR the printer.
Does this solve the problem?
The problem is solved. Go to step 2.
Step 2
Turn the printer off, and then remove the rear cover. See
“Rear cover
removal” on page 307.
Check the cables at JMIRR1 and JPH1 on the controller board for proper
connection, the printhead cable for pinch points, and the cable or
connector for any other damage.
Is the cable damaged?
Replace the printhead.
See
“Printhead
removal” on page
324.
Go to step 3.
Step 3
Turn the printer on, and then wait until the printer posts an error. Using
a voltmeter, check the following values at JMIRR1:
Pin 1: +5 V dc
Pin 2: +3.3 V dc
Pin 3: +5 V dc
Pin 4: Ground
Pin 5: +24 V dc
Are the values approximately correct?
Replace the controller
board. See
“Controller
board removal” on
page 309.
Replace the printhead.
See
“Printhead
removal” on page
324.
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Diagnostic information
89

Lexmark CX310 Specifications

General

Print Technology	Laser
Scan Technology	CIS
Scan Resolution	Up to 600 x 600 dpi
Duplex Printing	Manual
Display	2.4-inch color LCD
Processor Speed	800 MHz
Standard Memory	256 MB
Fax Speed	33.6 Kbps
Operating System Compatibility	Windows, Mac OS, Linux
Print Resolution	Up to 600 x 600 dpi
Connectivity	USB, Ethernet
Standard Paper Input	250 sheets
Scanner Type	Flatbed, ADF
Fax Resolution	300 x 300 dpi
Paper Capacity	250 sheets
Network Connectivity	Ethernet
Copy Speed	Up to 22 cpm (black), Up to 18 cpm (color)