3-4 Phaser 7500 Printer Service Manual
Error Messages and Codes
Messages, Chain Link Codes, and Procedures
The error messages and chain link codes generated by the printer’s operating
system are the lead-in to the troubleshooting procedures that follow in subsequent
pages. This section correlates the output of the printer’s diagnostic aids and
provides the troubleshooting procedures to locate and correct the reported errors.
Error Messages Abbreviations
Due to limited display space, some error messages include abbrevations. The most
common abbreviations used throughout this chapter are listed here.
Term Definition
ADC Automatic Density Control
ASIC Application-Specific Integrated Circuit
BLK Black
COMM Communication
CRT Cartridge
CRUM Customer Replaceable Unit
ER/ERR Error
ENV Environment
FUNC Function
MACaddress Access Control Address
MCU Machine Control Unit
NVM Non-Volatile Memory. Used instead of NVRAM.
NVRAM Non-Volatile Random Access Memory
PCL Printer Control Language
PDL Page Description Language
RAM Random Access Memory
REG Registration
ROM Read Only Memory
TRAN Transfer Unit
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