Sharp MX-C507P - Page 277

5028
Diagnostics and troubleshooting
243
Error code
Description
Action
952.xx
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
NVRAM chip failure with mirror.
1 POR the printer.
2 If the problem persists, replace the UICC
card.
Go to “Upper control panel removal” on
page 317 .
954.xx
The NVRAM chip failure with controller part.
Go to “950.xx NVRAM failure service
check” on page 244 .
955.xx
The Code ROM or NAND flash failed the
Cyclic Redundancy Check (CRC) check or the
NAND experienced an uncorrectable 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.xx
Controller board failure. Processor failure.
Check on .02 for fan error.
957.xx
Controller board failure. ASIC failure.
958.xx
Printer has performed more than 100 “shift
and reflash” operations as a result of ECC bit
corrections.
959.xx
Controller verification failure of system boot
code.
Go to “Invalid firmware/controller board
service check” on page 245 .
959.0x
System hardware failure.
Go to “Controller board removal” on
page 393 .