• Code: 955.xx
• Description: Service Code CRC <loc> 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 Pn 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 Bn 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.
• Remedy: • POR the printer. • If the problem persists, then replace the controller board.

• Code: 956.xx
• Description: Service Controller Board Controller board failure. Processor failure. Check on .02 for fan error.
• Remedy: • POR the printer. • If the problem persists, then replace the controller board.

• Code: 957.xx
• Description: Service Controller Board Controller board failure. ASIC failure.
• Remedy: • POR the printer. • If the problem persists, then replace the controller board.

• Code: 958.xx
• Description: Service NAND Failure Printer has performed more than 100 “shift and reflash” operations as a result of ECC bit corrections.
• Remedy: • POR the printer. • If the problem persists, then replace the controller board.

• Code: 959.xx
• Description: Service Invalid Firmware Controller verification failure of system boot code. 959.0x Service System Board System hardware failure.
• Remedy: • Update the firmware. • POR the printer. • If the problem persists, then replace the controller board

• Code: 960.xx
• Description: Service Memory Error RAM memory error: RAM soldered on the board is bad.
• Remedy: • POR the printer. • If the problem persists, then replace the controller board.

• Code: 961.xx
• Description: Service Memory Failure RAM memory error: slot 1 RAM is bad.
• Remedy: • Check RAM in slot 1. • If RAM is ok, then POR the printer. • If the problem persists, then replace the controller board.

• Code: 962.xx
• Description: Service Memory Failure RAM memory error: slot 2 RAM is bad.
• Remedy: • Check RAM in slot 2. • If RAM is ok, then POR the printer. • If the problem persists, then replace the controller board.