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950.00–950.29—EPROM mismatch failure
Warning:
When replacing any of the following components, replace only one component at a time or the
printer will be rendered inoperable:
•
System board
•
OP panel UICC card
Replace the required component, bring the printer up in Diagnostics mode (see
“Diagnostics menu” on
page 3-7
), and verify that the problem is fixed before performing a POR.
This error code indicates a mismatch between the operator panel assembly and the system board.
Step
Questions / actions
Yes
No
1
Has the OP panel UICC card been replaced
recently?
Replace the operator panel
assembly with a new, and
not previously installed,
UICC card. See
“OP panel
UICC card removal” on
page 4-114
.
Go to step 2.
2
Has the system board been replaced
recently?
Replace the system board
with a new, and not
previously installed, system
board. See
“System
board removal” on
page 4-151
.
Go to step 3.
3
Turn the printer power off for ten or more
seconds. Then turn the printer back on (POR
the printer).
Is the error gone, and can the printer
print?
Problem solved.
Go to step 4.
4
Clear the NVRAM of the printer:
1. Turn the printer power off.
2. With the printer off, press and hold
6
,
7
and
8
on the keypad.
3. Turn the printer on.
4. When
Restoring Factory Defaults
appears, release the buttons.
Note:
If the printer locks up on the
Restoring Factory Defaults, wait two
minutes, and then turn the printer power
off. After ten seconds or more, turn the
printer power back on without holding
down any buttons.
Does the error message still appear?
Go to step 5.
Problem solved.
5
Replace the OP panel UICC card. See
“OP
panel UICC card removal” on page 4-114
.
Does the error message still appear?
Replace the system board.
See
“System board
removal” on page 4-151
.
Problem solved.
Summary of Contents for C792 Family
Page 14: ...xiv Service Manual 5062 Go Back Previous Next ...
Page 19: ...Notices and safety information xix 5062 Go Back Previous Next ...
Page 20: ...xx Service Manual 5062 Go Back Previous Next ...
Page 40: ...1 14 Service Manual 5062 Go Back Previous Next ...
Page 212: ...2 172 Service Manual 5062 Go Back Previous Next ...
Page 468: ...4 214 Service Manual 5062 Go Back Previous Next 7 Remove the motor from the bracket ...
Page 490: ...4 236 Service Manual 5062 Go Back Previous Next 4 Flex the sides to remove the roller frame ...
Page 592: ...4 338 Service Manual 5062 Go Back Previous Next ...
Page 594: ...5 2 Service Manual 5062 Go Back Previous Next Connectors System board ...
Page 610: ...5 18 Service Manual 5062 Go Back Previous Next 5 bin mailbox system card ...
Page 612: ...5 20 Service Manual 5062 Go Back Previous Next Finisher Stacker system card HTU system card ...
Page 616: ...6 4 Service Manual 5062 Go Back Previous Next ...
Page 622: ...7 6 Service Manual 5062 Go Back Previous Next Assembly 3 Front 1 2 4 5 6 7 8 3 3 3 3 ...
Page 624: ...7 8 Service Manual 5062 Go Back Previous Next Assembly 3 1 Front continued 1 2 4 5 1 1 1 3 ...
Page 626: ...7 10 Service Manual 5062 Go Back Previous Next Assembly 4 Left 1 2 4 5 6 8 7 3 ...
Page 628: ...7 12 Service Manual 5062 Go Back Previous Next Assembly 4 1 Left continued 1 2 3 4 ...
Page 630: ...7 14 Service Manual 5062 Go Back Previous Next Assembly 5 Rear 1 2 3 6 11 8 9 12 4 7 5 13 10 ...
Page 632: ...7 16 Service Manual 5062 Go Back Previous Next Assembly 6 Optional 550 sheet tray 2 3 1 ...
Page 644: ...7 28 Service Manual 5062 Go Back Previous Next Assembly 11 Finisher stapler assembly 1 2 ...
Page 648: ...7 32 Service Manual 5062 Go Back Previous Next Assembly 13 5 bin mailbox assembly complete 1 ...
Page 654: ...7 38 Service Manual 5062 Go Back Previous Next Assembly 16 HTU complete 1 ...
Page 662: ...7 46 Service Manual 5062 Go Back Previous Next Assembly 20 HTU with hole punch complete 1 ...
Page 682: ...A 2 Service Manual 5062 Go Back Previous Next Print Quality Pages Page 1 total of five ...
Page 684: ...A 4 Service Manual 5062 Go Back Previous Next Print Quality Pages Page 3 total of five ...
Page 704: ...I 14 Service Manual 5062 Go Back Previous Next ...