Diagnostic information
2-109
5026
920.21—POST (power-on self test)—24 V power supply failure error service check
4
Check the transport motor cable for pinch
points and any other damage to the cable or
connector.
Is the cable damaged?
Replace the transport
motor cable. See
“Transport cable
removal” on page 4-156
.
Go to step 5.
5
Visually inspect the motor driver card.
Is the motor driver card damaged?
Replace the motor driver
card. See
“Motor driver
card removal” on
page 4-100
.
Go to step 6.
6
Replace the EP drive assembly. See
“Electrophotographic (EP) drive assembly
removal” on page 4-69
.
Problem resolved.
Replace the system board.
See
“System board
removal” on page 4-139
.
Step
Questions / actions
Yes
No
1
Check the input voltage switch on the back of
the low-voltage power supply (LVPS).
Some LVPS FRU do not have switches and
switch automatically. If your does not have a
switch, go to step 2.
Is the voltage level (115/230) properly set?
Go to step 2.
Set switch for the proper
country voltage.
Step
Questions / actions
Yes
No
A
230
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 ...