3-14 Phaser 5500 Printer Service Manual
Messages, Codes, and Procedures
The error messages and codes generated by the printer’s operating system, the Service
Usage Profile, and Service Diagnostics are the lead-in to the troubleshooting
procedures that follow in subsequent pages. This section correlates the output of these
three diagnostic aids and provides the troubleshooting procedure to locate and correct
reported errors.
Error Message Abbreviations
Due to limited display space, some error messages include abbreviations. The most
common abbreviations used throughout this chapter are listed here.
Error Message Abbreviations
Term Definition Comment
Reg or REGI Registration Used in designators such as Reg SNR.
SNR Sensor Often seen as SNR1 or Reg SNR.
DUP or DM Duplex Unit Optional for 2-sided printing.
F/O Feed Out Used as sensor designators F/O1 or F/O #2.
T/A Take Away Function designator for roller or motor.
H-Xport Horizontal Transport Horizontal Transport section of the Finisher.
MCU Main Control Unit Engine Logic Board
I/P Board Image Processor Image Processor Board
OCT Offset Catch Tray Offset Rollers at Exit
HCF High-Capacity Feeder Option Tray 6 or 2000-Sheet Feeder
MSI or MPT Multi-Sheet Input Used to describe Tray 1/MPT.
IOT Image Output Terminal Used instead of printer.
2TM Two-tray Module Option Trays 4 and 5 or 1000-Sheet Feeder
P/J Plug/Jack Plug (P) and or Jack (J) designators
EM Exit Module Used for either Exit (1 or optional Exit 2).
SW Switch Appears as a designator.
NVM Non-volatile Memory Used instead of NVRAM.
CRUM Customer-Replaceable
Unit Monitor
Device used to store usage information on the
Drum and Toner Cartridges.
Comm Communication As in MCU-DM Comm Error.
LVPS Low-Voltage Power Supply Primary power supply.
PWB Printed Wire Board Used to describe a circuit board (Tray 6 PWB).
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