Table Of Contents - Ricoh G031 Service Manual

OVERALL INFORMATION
1. OVERALL MACHINE INFORMATION ........................................ 1-1
1.1 SPECIFICATIONS.....................................................................................1-1
1.2 MACHINE CONFIGURATION ...................................................................1-5
1.3 PAPER PATH............................................................................................1-6
1.4 MECHANICAL COMPONENT LAYOUT....................................................1-7
1.5 ELECTRICAL COMPONENT LAYOUT .....................................................1-8
1.6 ELECTRICAL COMPONENT DESCRIPTIONS ......................................1-10
1.7 PRINTING PROCESS .............................................................................1-12
1.8 BOARD STRUCTURE.............................................................................1-14
1.8.1 OVERVIEW ....................................................................................1-14
1.8.2 MAJOR COMPONENTS ................................................................1-15
1.9 COMPARISON ........................................................................................1-16
DETAILED DESCRIPTIONS
2. DETAILED SECTION DESCRIPTIONS ...................................... 2-1
2.1 PRINTING .................................................................................................2-1
2.1.1 IMAGE DATA PATH .........................................................................2-1
2.1.2 PRINTER CONTROL BOARD..........................................................2-2
2.1.3 IMAGE DATA PROCESSIING..........................................................2-3
2.1.4 HOST INTERFACE ..........................................................................2-4
2.2 LASER EXPOSURE ..................................................................................2-5
2.2.1 OVERVIEW ......................................................................................2-5
2.2.2 OPTICAL PATH................................................................................2-6
2.2.3 AUTO POWER CONTROL (APC) ....................................................2-8
2.2.4 LD SAFETY SWITCH .......................................................................2-9
2.3 TONER CARTRIDGE ..............................................................................2-10
2.3.1 OVERVIEW ....................................................................................2-10
2.3.2 DRIVE.............................................................................................2-11
2.3.3 DRUM CHARGE.............................................................................2-12
2.3.4 DEVELOPMENT.............................................................................2-13
2.3.5 DRUM CLEANING..........................................................................2-15
2.4 IMAGE TRANSFER AND PAPER SEPARATION ...................................2-16
2.4.1 OVERVIEW ....................................................................................2-16
2.4.2 TRANSFER ROLLER CLEANING..................................................2-17
2.5 PAPER FEED..........................................................................................2-18
2.5.1 OVERVIEW ....................................................................................2-18
2.5.2 PAPER TRAY .................................................................................2-20
2.5.3 BY-PASS TRAY..............................................................................2-25
2.5.4 PAPER REGISTRATION................................................................2-27
2.6 IMAGE FUSING ......................................................................................2-29
2.6.1 OVERVIEW ....................................................................................2-29
SM

TABLE OF CONTENTS

i G031/G032/G049/G054