Lexmark CX310 Service Manual

Toner specks check
Keep running prints through, and the problem normally clears up. If the problem persists, then replace the developer
cartridge.
Narrow vertical line check
Actions Yes No
Replace the photoconductor unit.
Does this solve the problem?
The problem is solved. Replace the developer
unit.
Random marks check
Service tip: The primary cause of random marks is due to loose material moving around inside the printer and attaching
to the photoconductor unit, developer roll, or transfer belt.
Actions Yes No
Step 1
Is there any loose or foreign material on the imaging unit?
Inspect the imaging
unit by looking at the
individual developers
and photoconductors.
Clean or replace the
faulty unit. See
“Imaging unit (IU)
removal” on page
267.
Go to step 2.
Step 2
Is there any loose or foreign material on the developer roll?
Replace the developer
unit.
Go to step 3.
Step 3
Is there any loose or foreign material on the transfer belt?
Replace the image
transfer unit. See
Image transfer unit
(ITU).
Contact your next level
of support.
7527
Diagnostic information
44

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)