MCH . . . . . . . . . .Main Charger Unit

MCS . . . . . . . . . .Main Charger Sensor

MIGS . . . . . . . . .Minter Image Generation

System

MPU . . . . . . . . . .Micro Processing Unit MUX . . . . . . . . . .Multiplexer

OPC. . . . . . . . . . .Organic Photoconductor OPPNL . . . . . . . .Operator Panel

PC . . . . . . . . . . . .Photoconductor

PCL . . . . . . . . . . .Hewlett-Packard Printer Con- trol Language (Software)

PCL . . . . . . . . . . .Printer Control Logic Board (Hardware)

PCL5 . . . . . . . . . .HP Printer Control Language

(Version 5)

PCU. . . . . . . . . . .Photoconductor Unit

PFS . . . . . . . . . . .Paper Full Sensor

PH 1 . . . . . . . . . .A.C. Power Cord

PIA . . . . . . . . . . .Peripheral Interface Adapter

PIT . . . . . . . . . . .Parallel Interface/Timer

PMP . . . . . . . . . .Page Map Primitives

POR. . . . . . . . . . .Power On Reset

PPS . . . . . . . . . . .Paper Path Sensor

(B-C Sensor) (Duplex only)

PROM . . . . . . . . .Programmable Read Only

Memory

PS . . . . . . . . . . . .PostScript

PSS . . . . . . . . . . .Photoconductor Seam Sensor

PTM . . . . . . . . . .Programmable Timer Module

PTS . . . . . . . . . . .Paper Timing Sensor

PW CONT2 . . . .Power Control #2

PW CONT3 . . . .Power Control #3

PWBA. . . . . . . . .Printed Wire Board Assembly

RAM . . . . . . . . . .Random Access Memory

Resist Motor . . . .Registration Motor

(Duplex only)

ROM . . . . . . . . . .Read Only Memory

Root Motor . . . . .“C” Roller Motor

(Duplex only)

RPS . . . . . . . . . . Registration Paper Sensor (Duplex only)

RSS . . . . . . . . . . Registration Side Sensor (Duplex only)

SCC . . . . . . . . . . Serial Communication Controller

SIG IF or SIF . . . Signal Interface Board SRAM . . . . . . . . Static Random Access

Memory

SRC . . . . . . . . . . System Reference Code

SRMR2 . . . . . . . Side Registration Motor

Control #2 (Duplex only)

Suction FA3 . . . . Suction Fan

SW5 . . . . . . . . . . Upper Cassette In Switch

SW6 . . . . . . . . . . Lower Cassette In Switch

TAG . . . . . . . . . . Troubleshooting Analysis

Guide

TC . . . . . . . . . . . Toner Concentration

TCH . . . . . . . . . . Transfer Charger Unit

TCS . . . . . . . . . . Transfer Charger Sensor

TDS . . . . . . . . . . Toner Density Sensor

TES . . . . . . . . . . Toner Empty Sensor

TFS . . . . . . . . . . Tray Front Sensor

TH . . . . . . . . . . . Thermistor

TO SIG IF . . . . . To Signal Interface

TOSIGIF CENT To Signal Interface Centronics TONER . . . . . . . Toner Motor

TPS . . . . . . . . . . Timing Paper Sensor (Schematics)

TPS . . . . . . . . . . Toner Patch Sensor (Printer) TRC . . . . . . . . . . Timing Roller Clutch

TRS . . . . . . . . . . Tray Rear Sensor

PAPS . . . . . . . . . Upper Paper Sensor

UMT 1-3 . . . . . . Usage Meter Drive Signal

UPC . . . . . . . . . . Upper Paper Feed Clutch

UPE . . . . . . . . . . Upper Paper Empty Sensor

UPP . . . . . . . . . . Upper Pick Up Clutch

UPSS . . . . . . . . . Upper Tray Interlock

VPCL . . . . . . . . . Video Printer Control Logic

Board

A-2

Abbreviations and Acronyms

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HP C30 manual PC . . . . . . . . . . . .Photoconductor