2-112
Service Manual
5026
920.27, 920.28, 920.29—POST (power on self test) service check
925.01, 925.03, 925.05—Fan error service check
Step
Questions / actions
Yes
No
1
Is the specified option the 550-sheet tray?
Replace the 550-sheet tray
with a new 550-sheet tray
option.
Go to step 2.
2
Is the specified option the special media tray?
Replace the special media
tray with a new special tray
option.
Go to step 3.
3
Is the specified option the high-capacity input
tray (HCIT)?
Replace the HCIT
controller board assembly.
See
“HCIT controller
board assembly
removal” on page 4-170
.
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
.
Check the cable in connector JFAN1 (A) 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?
Replace the fan. See
“Cooling fan removal” on
page 4-61
.
Go to step 2.
2
Measure the resistance across fuse F5 on the
system board.
Is the fuse blown?
Replace the system board.
See
“System board
removal” on page 4-139
.
Go to step 3.
3
1. Disconnect the cable in connector JFAN1,
and connect a new fan.
2. Bring the printer up in Diagnostic menu
(turn off the printer, press and hold
and
. and turn on the printer).
Did the error clear?
Replace the cooling fan.
See
“Cooling fan
removal” on page 4-61
.
Replace the system board.
See
“System board
removal” on page 4-139
.
1
JSB1
JBIN1
JFAN1
JFUSER1
JBOR1
JHVPS1
JMIRR1
JBLW1
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
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
Содержание C734 series
Страница 13: ...Notices and safety information xiii 5026 ...
Страница 14: ...xiv Service Manual 5026 ...
Страница 170: ...2 136 Service Manual 5026 ...
Страница 255: ...Repair information 4 39 5026 11 Press the two tabs F to separate the right cover from the rear right cover F ...
Страница 284: ...4 68 Service Manual 5026 7 Remove the two screws G 8 Remove the duplex reference edge guide assembly G ...
Страница 288: ...4 72 Service Manual 5026 12 Remove the seven screws M securing the EP drive ...
Страница 339: ...Repair information 4 123 5026 13 Remove the three printhead mounting screws D ...
Страница 346: ...4 130 Service Manual 5026 f Scroll down to Quick Test and press Select A page similar to this one prints ...
Страница 395: ...Connector locations 5 1 5026 5 Connector locations Locations ...
Страница 408: ...7 2 Service Manual 5026 Assembly 1 Covers ...
Страница 410: ...7 4 Service Manual 5026 Assembly 2 Front ...
Страница 412: ...7 6 Service Manual 5026 Assembly 3 Right 1 2 3 4 5 6 ...
Страница 414: ...7 8 Service Manual 5026 Assembly 4 Rear ...
Страница 422: ...7 16 Service Manual 5026 Assembly 10 Optional high capacity input option HCIT 4 2 1 6 5 7 8 11 12 10 13 14 3 9 ...
Страница 424: ...7 18 Service Manual 5026 Assembly 11 Options and features ...
Страница 426: ...7 20 Service Manual 5026 ...
Страница 436: ...I 10 Service Manual 5026 ...