Lexmark C734dn Service Manual

Diagnostic information 2-101
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920.09—POST (power-on self test)—Four toner sensors not connected error service
check
Step Questions / actions Yes No
1 Turn the printer off, and then remove the rear
frame cover. See “Rear frame cover
removal” on page 4-33.
Reseat the cable in connector JHVPS1 (A).
Does the error clear?
Problem resolved. Go to step 2.
2
Check the HVPS cable in connector JHVPS1
for pinch points and any other damage to the
cable or connector.
Is the cable damaged?
Replace the HVPS cable.
See “High-voltage power
supply (HVPS) cable
removal” on page 4-110.
Go to step 3.
3
Remove the left cover. See “Left cover
removal” on page 4-21. Check the HVPS
cable for correct connection to the HVPS
board, pinch points for the cable, or any other
damage.
Is the cable damaged?
Replace the HVPS cable.
See “High-voltage power
supply (HVPS) cable
removal” on page 4-110.
Go to step 4.
4
Replace the HVPS board. See “High-voltage
power supply (HVPS) removal” on
page 4-108.
Does the error clear?
Problem resolved. Replace the system board.
See “System board
removal” on page 4-153.
1
JSB1
JBIN1
JFAN1
JFUSER1
JBOR1
JHVPS1
JMIRR1
JBLW1
JCVR1JCVR1
JLVPS2
JCARTP1
JCARTS1
JCARTS2
JCARTP2
JDVR1
JTPS1
JOPT1
JFDS1
JINT1
JFDPCK1JTRAY1JSEC1
JDX1
JT12
J5
JDIMM1
JOPP1
JT1
JUSB1
JBOOT1
JFMUSB1
J49
JTWF1
JTDBUG1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
JTLBT1
JPH1
F5
F6
F7
F9
F10
F12
F13
F14
1
1
J10
1
1
A

Lexmark C734dn Specifications

General

Brand	Lexmark
Model	C734dn
Category	Printer
Language	English