Phaser 6130 Color Laser Printer Service Manual 3-5Error Messages and CodesMessages, Chain Link Codes, and ProceduresThe error messages and chain link codes generated by the printer’s operatingsystem are the lead-in to the troubleshooting procedures that follow insubsequent pages. This section correlates the output of the printer’sdiagnostic aids and provides the troubleshooting procedures to locate andcorrect the reported errors.Error Messages AbbreviationsDue to limited display space, some error messages include abbreviations.The most common abbreviations used throughout this chapter are listed here.Term DefinitionADC Automatic Density ControlASIC Application-Specific Integrated CircuitBLK BlackCOMM CommunicationCTD Toner Density Sensor (ADC)CRT CartridgeCRUM Customer Replaceable UnitDTB Transfer Unit (Direct Transfer Belt)ER/ERR ErrorENV EnvironmentFUNC FunctionMACaddress Media Access Control AddressMCU Machine Control UnitMPC Multi-Protocol Network CardNVM Non-Volatile Memory. Used instead of NVRAM.NV RAM Non-Volatile Random Access MemoryPCL Printer Control LanguagePDL Page Description LanguagePHD Imaging UnitRAM Random Access MemoryREG RegistrationROM Read Only MemorySSI Manual Feed Slot (Single Sheet Input)TRAN Transfer Unit
