Diagnostic information
2-95
5026
920.05—POST (power-on self test) printhead motor not connected error service check
Step
Questions / actions
Yes
No
1
1. Turn the printer off.
2. Remove the rear frame cover. See
“Rear
frame cover removal” on page 4-33
.
3. Reseat the cables in connector
JMIRR1 (A).
Does the error clear?
Problem resolved.
Go to step 2.
2
Check the cables in connector JMIRR1 for
pinch points and any other damage to the
cables or connectors.
Is the cable damaged?
Replace the printhead. See
“Printhead removal,
installation, and
adjustment” on
page 4-121
.
Go to step 3.
3
Measure the resistance across fuse F6 (A) on
the system board.
Is the fuse blown?
Replace the system board.
See
“System board
removal” on page 4-139
.
Go to step 4.
4
1. Perform the printhead verification to check
whether the new printhead solves the
problem. See
“Printhead verification”
on page 3-35
.
2. Select
PRINTHEAD TESTS
, and press
Select
(
).
3. Select
Mirror Motor Test
, and press
Select
(
).
Did the mirror motor pass the test?
Replace the printhead. See
“Printhead removal,
installation, and
adjustment” on
page 4-121
.
Replace the system board.
See
“System board
removal” on page 4-139
.
1
JSB1
JBIN1
JFAN1
JFUSER1
JBOR1
JHVPS1
JMIRR1
JBLW1
JCVR1
JCVR1
JLVPS2
JCARTP1
JCARTS1
JCARTS2
JCARTP2
JDVR1
JTPS1
JOPT1
JFDS1
JINT1
JFDPCK1 JTRAY1 JSEC1
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
1
JSB1
JBIN1
JFAN1
JFUSER1
JBOR1
JHVPS1
JMIRR1
JBLW1
JCVR1
JCVR1
JLVPS2
JCARTP1
JCARTS1
JCARTS2
JCARTP2
JDVR1
JTPS1
JOPT1
JFDS1
JINT1
JFDPCK1 JTRAY1 JSEC1
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
Summary of Contents for C734 series
Page 13: ...Notices and safety information xiii 5026 ...
Page 14: ...xiv Service Manual 5026 ...
Page 170: ...2 136 Service Manual 5026 ...
Page 288: ...4 72 Service Manual 5026 12 Remove the seven screws M securing the EP drive ...
Page 339: ...Repair information 4 123 5026 13 Remove the three printhead mounting screws D ...
Page 395: ...Connector locations 5 1 5026 5 Connector locations Locations ...
Page 408: ...7 2 Service Manual 5026 Assembly 1 Covers ...
Page 410: ...7 4 Service Manual 5026 Assembly 2 Front ...
Page 412: ...7 6 Service Manual 5026 Assembly 3 Right 1 2 3 4 5 6 ...
Page 414: ...7 8 Service Manual 5026 Assembly 4 Rear ...
Page 424: ...7 18 Service Manual 5026 Assembly 11 Options and features ...
Page 426: ...7 20 Service Manual 5026 ...
Page 436: ...I 10 Service Manual 5026 ...