Ricoh M160 Service Manual page 8

2.21.2 EXECUTE THE @REMOTE SETTINGS .......................................................... 2-81
3. PREVENTIVE MAINTENANCE..................................................... 3-1
3.1 PREVENTIVE MAINTENANCE TABLES ...................................................................... 3-1
3.2 IMAGE QUALITY STANDARDS .................................................................................... 3-2
3.3 PAPER TRANSFER QUALITY STANDARDS ............................................................... 3-4
4. REPLACEMENT AND ADJUSTMENT ......................................... 4-1
4.1 GENERAL CAUTIONS .................................................................................................. 4-1
4.1.1 NOTES ON THE MAIN POWER SWITCH ......................................................... 4-1
Characteristics of the Push Switch (DC Switch) ..................................................... 4-1
Shutdown Method.................................................................................................... 4-2
Forced Shutdown .................................................................................................... 4-3
4.2 SPECIAL TOOLS ........................................................................................................... 4-4
4.3 EXTERIOR COVERS..................................................................................................... 4-5
4.3.1 FRONT COVER .................................................................................................. 4-5
4.3.2 LEFT COVER ...................................................................................................... 4-7
4.3.3 RIGHT COVER .................................................................................................... 4-8
4.3.4 REAR COVER / REAR LOWER COVER ........................................................... 4-9
4.3.5 UPPER COVER ................................................................................................ 4-10
4.3.6 OPERATION PANEL ......................................................................................... 4-11
4.3.7 OPERATION PANEL LOWER INNER COVER ................................................ 4-12
4.4 LED OPTICS ................................................................................................................ 4-13
4.4.1 LED UNIT .......................................................................................................... 4-13
How to Re-engage Disengaged Springs ............................................................... 4-16
4.5 PCDU ........................................................................................................................... 4-20
4.5.1 PCDU................................................................................................................. 4-20
4.6 TONER CARTRIDGE .................................................................................................. 4-21
4.6.1 TONER CARTRIDGE ........................................................................................ 4-21
4.7 IMAGE TRANSFER ..................................................................................................... 4-22
4.7.1 IMAGE TRANSFER ROLLER ........................................................................... 4-22
4.8 DRIVE UNIT ................................................................................................................. 4-23
4.8.1 MAIN MOTOR ................................................................................................... 4-23
4.8.2 DUPLEX EXIT MOTOR ..................................................................................... 4-23
4.8.3 TONER SUPPLY CLUTCH ............................................................................... 4-24
4.8.4 REGISTRATION CLUTCH ................................................................................ 4-25
4.8.5 PAPER FEED CLUTCH .................................................................................... 4-25
4.8.6 DRIVE UNIT ...................................................................................................... 4-26
4.8.7 GEAR UNIT ....................................................................................................... 4-26
4.8.8 BY-PASS FEED CLUTCH ................................................................................. 4-27
M160/M161 iv SM