Toshiba e-studio 167 Service Manual page 7

12.2 Construction....................................................................................................................... 12-2
12.3 Functions ........................................................................................................................... 12-3
12.3.1 Function of each unit .............................................................................................. 12-3
12.3.2 Functions of the toner cartridge PC board (CTRG) ................................................ 12-4
12.3.3 Recovered toner supply mechanism ...................................................................... 12-6
12.4 Toner Motor Control Circuit ............................................................................................... 12-7
12.5 Auto-Toner Circuit.............................................................................................................. 12-8
12.5.1 General description ................................................................................................ 12-8
12.5.2 Function of auto-toner sensor ................................................................................ 12-9
12.6 Disassembly and Replacement ....................................................................................... 12-11
13. FUSER / EXIT UNIT .................................................................................................... 13-1
13.1 General Description ........................................................................................................... 13-1
13.2 Configurations.................................................................................................................... 13-2
13.3 Functions ........................................................................................................................... 13-3
13.4 Operation ........................................................................................................................... 13-5
13.5 Fuser Unit Control Circuit .................................................................................................. 13-6
13.5.1 Configuration .......................................................................................................... 13-6
13.5.2 Temperature detection section ............................................................................... 13-7
13.6 Disassembly and Replacement ....................................................................................... 13-12
14. AUTOMATIC DUPLEXING UNIT (ADU) (OPTION: MD-0103) .................................. 14-1
14.1 General Description ........................................................................................................... 14-1
14.1.1 Specifications of MD-0103 ..................................................................................... 14-2
14.2 Construction....................................................................................................................... 14-3
14.3 Functions ........................................................................................................................... 14-4
14.4 Drive of ADU...................................................................................................................... 14-5
14.5 Description of Operation ................................................................................................... 14-6
14.6 Flow Chart ....................................................................................................................... 14-11
14.7 Disassembly and Replacement ....................................................................................... 14-12
15. POWER SUPPLY UNIT .............................................................................................. 15-1
15.1 Construction....................................................................................................................... 15-1
15.2 Operation of DC Output Circuit.......................................................................................... 15-2
15.3 Output Channel ................................................................................................................. 15-3
15.4 Fuse................................................................................................................................... 15-4
15.5 Configuration of Power Supply Unit................................................................................... 15-5
15.6 Power Supply Sequence ................................................................................................... 15-6
15.7 AC Wire Harness ............................................................................................................... 15-7
16. PC BOARDS ............................................................................................................... 16-1
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