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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 menus” on
page 3-8
), 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 4-113
.
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 4-150
.
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 4-113
.
Does the error message still appear?
Replace the system board.
See
“System board
removal” on page 4-150
.
Problem solved.
Summary of Contents for X792 7562-4xx
Page 21: ...Notices and safety information xxi 7562 Go Back Previous Next ...
Page 22: ...xxii Service Manual 7562 Go Back Previous Next ...
Page 238: ...2 198 Service Manual 7562 Go Back Previous Next ...
Page 396: ...4 90 Service Manual 7562 Go Back Previous Next d Lift the rail out of the printer ...
Page 409: ...Repair information 4 103 7562 Go Back Previous Next Verify the rolls turn freely ...
Page 454: ...4 148 Service Manual 7562 Go Back Previous Next ...
Page 459: ...Repair information 4 153 7562 Go Back Previous Next 7 Remove two screws C C 88A0232 ...
Page 582: ...4 276 Service Manual 7562 Go Back Previous Next 10 Remove the jam clearance cover sensor ...
Page 597: ...Repair information 4 291 7562 Go Back Previous Next 7 Remove the motor from the bracket ...
Page 726: ...4 420 Service Manual 7562 Go Back Previous Next ...
Page 728: ...5 2 Service Manual 7562 Go Back Previous Next Connectors System board ...
Page 738: ...5 12 Service Manual 7562 Go Back Previous Next UICC card ...
Page 747: ...Connector locations 5 21 7562 Go Back Previous Next 5 bin mailbox system card ...
Page 750: ...5 24 Service Manual 7562 Go Back Previous Next ...
Page 754: ...6 4 Service Manual 7562 Go Back Previous Next ...
Page 760: ...7 6 Service Manual 7562 Go Back Previous Next Assembly 3 Front 1 2 4 5 6 7 8 3 3 3 3 ...
Page 762: ...7 8 Service Manual 7562 Go Back Previous Next Assembly 3 1 Front continued 1 2 4 5 1 1 1 3 ...
Page 764: ...7 10 Service Manual 7562 Go Back Previous Next Assembly 4 Left 1 2 5 6 8 7 4 3 ...
Page 766: ...7 12 Service Manual 7562 Go Back Previous Next Assembly 4 1 Left continued 1 2 3 4 ...
Page 768: ...7 14 Service Manual 7562 Go Back Previous Next Assembly 5 Rear 1 4 5 8 10 6 9 2 3 7 11 ...
Page 770: ...7 16 Service Manual 7562 Go Back Previous Next Assembly 5 1 Rear continued 4 6 3 2 1 5 ...
Page 772: ...7 18 Service Manual 7562 Go Back Previous Next Assembly 6 Flatbed scanner ...
Page 774: ...7 20 Service Manual 7562 Go Back Previous Next Assembly 7 ADF unit assembly 1 ...
Page 776: ...7 22 Service Manual 7562 Go Back Previous Next Assembly 8 ADF covers 1 2 4 3 5 6 7 8 9 10 11 ...
Page 782: ...7 28 Service Manual 7562 Go Back Previous Next Assembly 11 Optional 550 sheet tray 2 3 1 ...
Page 794: ...7 40 Service Manual 7562 Go Back Previous Next Assembly 16 Finisher stapler assembly 1 2 ...
Page 798: ...7 44 Service Manual 7562 Go Back Previous Next Assembly 18 5 bin mailbox assembly complete 1 ...
Page 804: ...7 50 Service Manual 7562 Go Back Previous Next Assembly 21 HTU complete 1 ...
Page 812: ...7 58 Service Manual 7562 Go Back Previous Next Assembly 25 HTU with hole punch complete 1 ...
Page 830: ...7 76 Service Manual 7562 Go Back Previous Next ...
Page 832: ...A 2 Service Manual 7562 Go Back Previous Next Print Quality Pages Page 1 total of five ...
Page 834: ...A 4 Service Manual 7562 Go Back Previous Next Print Quality Pages Page 3 total of five ...