Lexmark CX310 Service Manual

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Step 5
Turn the printer off, and remove the rear cover. See
“Rear cover removal”
on page 307. Turn the printer on, and verify the following values at JINT1
and JCVR1.
JINT1
Pin 1: +5 V dc
Pin 2: Ground
JCVR1
Pin 1: +24 V dc
Are the values approximately correct?
Go to step 6. Replace the controller
board. See
“Controller
board removal” on
page 309.
Step 6
Close the front cover and the toner door. Be sure that the right cover is
in place. Turn the printer off, and then disconnect the cables at JINT1 and
JCVR1.
Test continually at the connector under the following conditions:
• With the front cover and toner door closed: Test pin 1 and pin 3 at
JINT1 cable end, and pin 1 and pin 2 at JCVR1 cable end.
• With one or both doors open: Pin 2 and 3 at JINT1 cable end should
indicate continuity, but pins 1 and 2 at JCVR1 should have no
continuity.
Are the tests verified?
Contact your next level
or support.
Replace the front cover
assembly. See
“Front
door sensor or
switches service
check” on page 123.
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Diagnostic information
126

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)