Ricoh AC104, Service Documentation

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APPENDIX
APPENDIX 3 B173
Appe
ndix
ACRONYMS AND ABBREVIATIONS
The table in the below explains abbreviations used in this service manual.
The contents of this service manual are declared with abbreviations in many parts.
Please refer to the table.
AC Alternating Current IC integrated circuit
ADF Automatic Document Feeder IDE Intelligent Drive electronics or
Imbedded Drive Electronics
ASIC Application Specific Integrated Circuit IEEE Institute of Electrical and Electronics
Engineers. Inc
ASSY assembly IPA Isopropy Alcohol
BIOS Basic Input Output System IPM Images Per Minute
CCD Charge Coupled Device LAN local area network
CMOS Complementary Metal Oxide
Semiconductor lb pound(s)
CN connector LBP Laser Beam Printer
CON connector LCD Liquid Crystal Display
CPU Central Processing Unit LED Light Emitting Diode
dB decibel LSU Laser Scanning Unit
dbA decibelampere MB Megabyte
dBM decibel milliwatt MHz Megahertz
DC direct current NVRAM Nonvolatile random access memory
DCU Diagnostic Control Unit OPC Organic Photo Conductor
DPI Dot Per Inch PBA Printed Board Assembly
DRAM Dynamic Random Access Memory PCL Printer Command Language ,
Printer Control Language
DVM Digital Voltmeter PDL Page Discription Language
ECP Enhanced Capability Port PPM Page Per Minute
EEPROM Electronically Erasable
Programmable Read Only Memory
PTL Pre-Transfer Lamp
EMI Electro Magnetic Interference Q’ty Quantity
EP electrophotographic RAM Random Access Memory
EPP Enhanced Parallel Port ROM Read Only Memory
F/W firmware SCF Second Cassette Feeder
GDI graphics device interface SMPS Switching Mode Power Supply
GND ground SPGP Samsung Printer Graphic Processor
HBP Host Based Printing SPL Samsung Printer Language
HDD Hard Disk Drive Spool Simultaneous Peripheral Operation
Online
HV high voltage SW Switch
HVPS High Voltage Power Supply Sync Synchronous or synchronization
I/F interface USB Universal Serial Bus
I/O Input and Output