Exit Sensor Service Check - Lexmark C734 Service Manual

Exit sensor service check

Step Questions / actions
1 Verify the paper is loaded properly in the
paper tray or manual feed slot.
Is the paper properly loaded?
2 Turn the printer off, and remove the fuser.
See "Fuser removal" on page
POR the printer.
Did the error clear?
3 Remove the rear frame cover. See
frame cover removal" on page
Check the fuser DC cable in the connector
JFUSER1 for proper connection to the system
board, for pinch points, and for any other
damage to the cable or the connector.
Is the cable damaged?
4 Place a voltmeter between the fuser DC
autoconnect pin 8 and ground (pin 6).
Does the meter rear +5 V dc?
5 Place a voltmeter between the connector
JFUSER1 pin 8 and ground (pin 6) on the
system board.
Does the meter read +5 V dc?
4-90.
"Rear
4-33.
A
1 JBIN1 1 1 JFUSER1 1 JHVPS1 1 JBLW1 1
1 1 1
JSB1 JFAN1 JBOR1 JMIRR1 JOPP1
1
JCVR1 JCVR1
F5
F6
JLVPS2
1
JCARTP1 F7
J49
1
JCARTS1
1
JBOOT1
JDIMM1
F9
JCARTS2
1 JTLBT1
1 1
JCARTP2 JFMUSB1
1 JTWF1
1
F10
1 JDVR1 1 JTDBUG1
JTPS1
1
JOPT1 J5
JDX1
1 1 F13 1
1 JFDS1
F12
1 JINT1 F14
JFDPCK1 JTRAY1 JSEC1
JPH1
1 1 JT12
Pin 6
(ground)
Yes
Go to step 2.
Problem resolved.
Replace the fuser DC
cable. See "Fuser DC
cable removal" on
page 4-92.
JT1
1
JUSB1
1
J10
Go to step 6.
Go to step 6.
No
Load paper correctly.
Remove the new fuser, and
go to step 3.
Go to step 5.
Go to step 5.
Replace the fuser DC
cable. See "Fuser DC
cable removal" on
page 4-92.
2-123
Diagnostic information
5026