Toshiba e-STUDIO182 Service Manual page 15

9.4.1 Drawer ............................................................................................................... 9-5
9.4.2 Bypass tray ........................................................................................................ 9-7
9.4.3 General operation .............................................................................................. 9-9
9.5 Disassembly and Replacement....................................................................................... 9-10
9.5.1 Bypass unit ...................................................................................................... 9-10
9.5.2 Bypass tray ...................................................................................................... 9-11
9.5.3 Bypass separation pad ................................................................................... 9-11
9.5.4 Bypass roller unit ............................................................................................. 9-12
9.5.5 Bypass pickup roller ........................................................................................ 9-14
9.5.6 Bypass feed roller ........................................................................................... 9-14
9.5.7 Bypass paper sensor (S8) ............................................................................... 9-14
9.5.8 Bypass pickup solenoid (SOL2)....................................................................... 9-15
9.5.9 Bypass pickup clutch / Bypass feed clutch ...................................................... 9-16
9.5.10 Damp heater unit (DH3) / Dummy plate .......................................................... 9-18
9.5.11 Paper empty sensor (S7) ................................................................................. 9-18
9.5.12 Pickup roller .................................................................................................... 9-19
9.5.13 Registration clutch (CLT1) ............................................................................... 9-20
9.5.14 Pickup solenoid (SOL1) ................................................................................... 9-20
9.5.15 Drawer pickup clutch ....................................................................................... 9-21
9.5.16 Registration roller (rubber) ............................................................................... 9-22
9.5.17 Registration roller (metal) ................................................................................ 9-23
9.5.18 Feed gear unit.................................................................................................. 9-24
9.5.19 Drawer detection switch (SW5) ....................................................................... 9-24
9.5.20 Registration sensor (S4) .................................................................................. 9-25
10. DRUM RELATED SECTION ....................................................................................... 10-1
10.1 General Description ........................................................................................................ 10-1
10.2 Configuration................................................................................................................... 10-2
10.3 Functions......................................................................................................................... 10-3
10.4 High-Voltage Output Control Circuit................................................................................ 10-5
10.4.1 General description.......................................................................................... 10-5
10.4.2 Description of Operation .................................................................................. 10-6
10.5 Drum Temperature Detection Circuit .............................................................................. 10-7
10.5.1 General description.......................................................................................... 10-7
10.5.2 Circuit configuration ......................................................................................... 10-7
10.6 Temperature/Humidity Detection Circuit ......................................................................... 10-8
10.6.1 General Description ......................................................................................... 10-8
10.6.2 Circuit configuration ......................................................................................... 10-8
10.7 Disassembly and Replacement....................................................................................... 10-9
10.7.1 Process unit ..................................................................................................... 10-9
10.7.2 Drum cleaner unit .......................................................................................... 10-11
10.7.3 Discharge LED (ERS) .................................................................................... 10-12
10.7.4 Main charger.................................................................................................. 10-13
10.7.5 Main charger grid .......................................................................................... 10-13
10.7.6 Main charger cleaner ..................................................................................... 10-14
10.7.7 Needle electrode ........................................................................................... 10-14
10.7.8 Drum ............................................................................................................. 10-15
10.7.9 Drum cleaning blade ..................................................................................... 10-15
10.7.10 Drum separation finger ................................................................................. 10-15
10.7.11 Recovery blade ............................................................................................. 10-16
10.7.12 Transfer/Separation charger .......................................................................... 10-16
10.7.13 Charger wire ................................................................................................. 10-17
10.7.14 Transfer unit................................................................................................... 10-18
10.7.15 Ozone filter ................................................................................................... 10-19
10.7.16 Exhaust fan (M5) ........................................................................................... 10-20
10.7.17 Temperature/humidity sensor (S3) ................................................................ 10-21
10.7.18 Toner cartridge interface PC board (CTIF) .................................................... 10-22
© 2009 TOSHIBA TEC CORPORATION All rights reserved
3
e-STUDIO182/212/242
CONTENTS