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Service Manual
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156.xx—COD (Color On Demand) motor service check
160.xx, 161.xx—Motor Error (option tray 2) 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 4-47
.
3. Check the cable in connector JBOR1 on
the system board for proper connection,
for cable pinch points, and for any other
damage to the cable or connector.
Is the cable damaged?
Replace the COD
assembly. See
“Color on
demand assembly
removal” on page 4-78
.
Go to step 2.
2
Measure the continuity across all of the fuses
on the system board.
Are any of the fuses blown?
Replace the system board.
See
“System board
removal” on page 4-163
.
Go to step 3.
3
1. Disconnect the cable in connector JBOR1
and then connect the cable from the new
COD group assembly.
2. Bring the printer up in Diagnostics Menu
(turn off the printer, press and hold
buttons
3
and
6
, then turn on the printer).
3. Navigate to
MOTOR TESTS
>
COD
>
Forward
. If nothing happens, select
Reverse
.
Did the COD motor pass the test?
Replace the COD
assembly. See
“Color on
demand assembly
removal” on page 4-78
.
Replace the system board.
See
“System board
removal” on page 4-163
.
Step
Questions / actions
Yes
No
1
1. Turn the printer off.
2. Reseat option tray 2.
3. Bring the printer up in Diagnostics Menu
(turn off the printer, press and hold
buttons
3
and
6
, then turn on the printer).
4. Navigate to
PRINT TESTS
>
Tray 2
>
Single
.
Did the page print?
Problem resolved.
Go to step 2.
2
1. Turn the printer off.
2. Remove the rear frame cover. See
“Rear
frame cover removal” on page 4-47
.
3. Check the option cable in connector
JOPT1 on the system board for proper
connection, for cable pinch points, and for
any other damage to the cable or
connector
Is the cable damaged?
Replace the option cable.
See
“Option cable
removal” on page 4-143
.
Go to step 3.
Содержание CS748de
Страница 13: ...Notices and safety information xiii 5026 Go Back Previous Next ...
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Страница 38: ...1 18 Service Manual 5026 Go Back Previous Next ...
Страница 229: ...Diagnostic aids 3 51 5026 Go Back Previous Next Theory of operation Paper path ...
Страница 252: ...3 74 Service Manual 5026 Go Back Previous Next ...
Страница 272: ...4 20 Service Manual 5026 Go Back Previous Next e Scroll down and touch Quick Test A page similar to this one prints ...
Страница 296: ...4 44 Service Manual 5026 Go Back Previous Next 5 Unsnap the small latches securing the buttons then remove them ...
Страница 331: ...Repair information 4 79 5026 Go Back Previous Next 5 Remove the five screws B 6 Remove the COD assembly ...
Страница 353: ...Repair information 4 101 5026 Go Back Previous Next 12 Remove the three screws M on the front L M ...
Страница 354: ...4 102 Service Manual 5026 Go Back Previous Next 13 Remove the seven screws N securing the EP drive N N First N N ...
Страница 400: ...4 148 Service Manual 5026 Go Back Previous Next 5 Engage the gear B ...
Страница 407: ...Repair information 4 155 5026 Go Back Previous Next 13 Remove the three printhead mounting screws D ...
Страница 440: ...4 188 Service Manual 5026 Go Back Previous Next 9 Remove the two screws G G 18B1236 ...
Страница 468: ...4 216 Service Manual 5026 Go Back Previous Next ...
Страница 469: ...Connector locations 5 1 5026 Go Back Previous Next 5 Connector locations Locations ...
Страница 472: ...5 4 Service Manual 5026 Go Back Previous Next ...
Страница 476: ...7 2 Service Manual 5026 Go Back Previous Next Assembly 1 Covers C746 1 2 3 4 5 16 17 17 13 14 15 6 7 8 9 10 11 12 18 ...
Страница 480: ...7 6 Service Manual 5026 Go Back Previous Next Assembly 3 Front 1 2 3 4 7 12 11 13 14 10 A B D E C G F F 5 6 8 9 ...
Страница 482: ...7 8 Service Manual 5026 Go Back Previous Next Assembly 4 Right ...
Страница 484: ...7 10 Service Manual 5026 Go Back Previous Next Assembly 5 Rear ...
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