Toshiba e-studio212 - Page 16

e-STUDIO182/212/242 © 2009 TOSHIBA TEC CORPORATION All rights reserved
CONTENTS
4
11. DEVELOPMENT SYSTEM.......................................................................................... 11-1
11.1 General Description ........................................................................................................ 11-1
11.2 Construction .................................................................................................................... 11-2
11.3 Functions......................................................................................................................... 11-3
11.3.1 Function of each unit ....................................................................................... 11-3
11.3.2 Functions of the toner cartridge PC board (CTRG) ......................................... 11-4
11.3.3 Recovered toner supply mechanism ............................................................... 11-6
11.4 Toner Motor Control Circuit............................................................................................. 11-7
11.5 Auto-Toner Circuit ........................................................................................................... 11-8
11.5.1 General description.......................................................................................... 11-8
11.5.2 Function of auto-toner sensor.......................................................................... 11-9
11.6 Disassembly and Replacement..................................................................................... 11-11
11.6.1 Developer unit................................................................................................ 11-11
11.6.2 Developer material ........................................................................................ 11-12
11.6.3 Filling developer unit with developer material................................................ 11-13
11.6.4 Auto-toner sensor (S6) .................................................................................. 11-14
11.6.5 Drum thermistor (THMS4) ............................................................................. 11-14
11.6.6 Guide roller / Developer sleeve ..................................................................... 11-14
11.6.7 Mixer .............................................................................................................. 11-18
11.6.8 Replacement of Oil Seal ................................................................................ 11-20
12. FUSER / EXIT UNIT .................................................................................................... 12-1
12.1 General Description ........................................................................................................ 12-1
12.2 Configurations ................................................................................................................. 12-2
12.3 Functions......................................................................................................................... 12-3
12.4 Operation ........................................................................................................................ 12-5
12.5 Fuser Unit Control Circuit................................................................................................ 12-6
12.5.1 Configuration ................................................................................................... 12-6
12.5.2 Temperature detection section ........................................................................ 12-7
12.6 Disassembly and Replacement..................................................................................... 12-12
12.6.1 Fuser / Exit unit.............................................................................................. 12-14
12.6.2 Pressure roller unit / Fuser roller unit............................................................. 12-14
12.6.3 Exit roller........................................................................................................ 12-15
12.6.4 Exit sensor (S5) ............................................................................................ 12-16
12.6.5 Separation finger ......................................................................................... 12-18
12.6.6 Center heater lamp / Side heater lamp (LAMP1/LAMP2) .............................. 12-19
12.6.7 Fuser roller .................................................................................................... 12-20
12.6.8 Pressure roller .............................................................................................. 12-20
12.6.9 Center thermistor / Side thermistor / Edge thermistor
(THMS1/THMS2/THMS3)............................................................................. 12-22
12.6.10 Fuser thermostat (THMO1)............................................................................ 12-22
12.6.11 Exit motor (M7): Option.................................................................................. 12-23
13. AUTOMATIC DUPLEXING UNIT (ADU) (OPTION: MD-0103) .................................. 13-1
13.1 General Description ........................................................................................................ 13-1
13.1.1 Specifications of MD-0103............................................................................... 13-2
13.2 Construction .................................................................................................................... 13-3
13.3 Functions......................................................................................................................... 13-4
13.4 Drive of ADU ................................................................................................................... 13-5
13.5 Description of Operation ................................................................................................ 13-6
13.6 Disassembly and Replacement..................................................................................... 13-11
13.6.1 Automatic Duplexing Unit (ADU) ................................................................... 13-11
13.6.2 ADU driving PC board (ADU) ........................................................................ 13-12
13.6.3 ADU motor (M8)............................................................................................. 13-12
13.6.4 Upper transport roller..................................................................................... 13-13
13.6.5 Lower transport roller..................................................................................... 13-13
13.6.6 Paper guide ................................................................................................... 13-14