Diagnostic information
2-23
950.
xx
Service
NVRAM Failure
There is a mismatch between controller
EEPROM and mirror.
• 950.00 through 950.29 codes:
mismatch between controller and
mirror
• 950.30 through 950.60 codes:
mismatch between secure and
controller
Go to
.
951.
xx
Service
NVRAM Failure
Mismatch between controller EEPROM
and mirror.
• 951.00 through 951.29 codes:
mismatch between controller and
mirror
• 951.30 through 951.60: mismatch
between secure and controller
952.
xx
Service
NVRAM Failure
A recoverable MVRAM Cyclic
Redundancy Check (CRC) error
occurred. “
n
” is the offset at which the
error occurred.
Performing a POR will clear this error.
953.
xx
Service
NVRAM Failure
NVRAM chip failure with mirror.
954.
xx
Service
NVRAM Failure
The NVRAM chip failure with controller
part.
955.
xx
Service
Code CRC <
loc
>
The Code ROM or NAND flash failed
the Cyclic Redundancy Check (CRC)
check or the NAND experienced an
uncorrectible multi-bit failure. “<
loc
>”
indicates the source of the failure and
has one of the following values:
•
CRC Failure
: The source is a
failing package indicated by P
n
where “
n
” is the package number.
This error could occur on a
controller with ROM or NAND flash
and could occur as a result of the
CRC check done when the
machine is powered on. The range
of package numbers is from 0 to
15.
•
Error Correction Code (ECC)
Failure
: The source is a failing
page indicated by B
n
where “
n
” is
the page number. This error occurs
only if a multi-bit failure is detected
during the ECC execution. Single
bit failures will be corrected
automatically and will not result in a
service error. The range of page
numbers is from 0 to 1023.
956.00 Service
System Board
Controller board failure. Processor
failure.
Replace conrtroller board. See
956.01 Service
System Board
Processor over temperature.
957.
xx
Service
System Board
Controller board failure. ASIC failure.
Service error messages (1XX, 8XX and 9xx) (continued)
Error code
Description
Action
Y112730-2
Summary of Contents for d-Color MF920
Page 1: ...SERVICE MANUAL Copiatrici Copiers d Color MF920 d Color MF923 Code Y112730 2...
Page 10: ...x Service Manual Y112730 2...
Page 15: ...Notices and safety information xv Y112730 2...
Page 16: ...xvi Service Manual Y112730 2...
Page 18: ...xviii Service Manual Y112730 2...
Page 22: ...xxii Service Manual Y112730 2...
Page 124: ...2 80 Service Manual Y112730 2...
Page 198: ...3 74 Service Manual Y112730 2...
Page 302: ...4 104 Service Manual Y112730 2...
Page 305: ...Locations 5 3 Interior view Y112730 2...
Page 306: ...5 4 Service Manual Printer boards Controller Board Y112730 2...
Page 317: ...Locations 5 15 HVPS Y112730 2...
Page 319: ...Locations 5 17 LVPS Y112730 2...
Page 324: ...6 2 Service Manual Y112730 2...
Page 331: ...Index I 7 Y112730 2...
Page 332: ...UPDATINGSTATUS DATE UPDATEDPAGES PAGES CODE 09 2010 1ST EDITION 332 Y112730 2...