Toshiba e-STUDIO2008A Service Manual page 16

4.7.2 Drum cleaner unit ............................................................................................ 4-88
4.7.3 Discharge LED................................................................................................. 4-90
4.7.4 Main charger.................................................................................................... 4-91
4.7.5 Main charger grid ............................................................................................ 4-92
4.7.6 Main charger cleaner ....................................................................................... 4-92
4.7.7 Needle electrode ............................................................................................ 4-93
4.7.8 Drum ............................................................................................................... 4-94
4.7.9 Drum cleaning blade ....................................................................................... 4-95
4.7.10 Drum separation finger .................................................................................. 4-96
4.7.11 Recovery blade ............................................................................................... 4-97
4.7.12 Temperature/humidity sensor (S19) ................................................................ 4-98
4.7.13 Toner motor (M4)............................................................................................. 4-98
4.7.14 Process unit fan (M2)....................................................................................... 4-99
4.7.15 SYS/HDD cooling fan (M6) ............................................................................ 4-100
4.7.16 Switching regulator cooling fan (M7) ............................................................. 4-101
4.7.17 Main power switch (SW1) .............................................................................. 4-101
4.8 Developer Unit .............................................................................................................. 4-102
4.8.1 Developer unit................................................................................................ 4-102
4.8.2 Removing developer material ........................................................................ 4-104
4.8.3 Filling developer unit with developer material................................................ 4-105
4.8.4 EPU memory board (EPU) ............................................................................ 4-105
4.8.5 Auto-toner sensor (S4) .................................................................................. 4-106
4.8.6 Drum thermistor (THMS4) ............................................................................. 4-106
4.8.7 Guide roller / Developer sleeve ..................................................................... 4-107
4.8.8 Mixer .............................................................................................................. 4-111
4.8.9 Replacement of oil seal ................................................................................. 4-113
4.9 Transfer unit .................................................................................................................. 4-114
4.9.1 Transfer unit................................................................................................... 4-114
4.9.2 TRU fan (M9) ................................................................................................. 4-115
4.9.3 Transfer roller unit.......................................................................................... 4-116
4.9.4 Transfer roller ............................................................................................... 4-116
4.9.5 Separation needle.......................................................................................... 4-118
4.9.6 Ozone filter .................................................................................................... 4-119
4.10 Fuser Unit...................................................................................................................... 4-121
4.10.1 Fuser unit....................................................................................................... 4-121
4.10.2 Front side cover ............................................................................................. 4-123
4.10.3 Rear side cover.............................................................................................. 4-123
4.10.4 Fuser roller cover........................................................................................... 4-123
4.10.5 Paper entrance guide .................................................................................... 4-124
4.10.6 Separation finger ........................................................................................... 4-124
4.10.7 Exit sensor (S5) ............................................................................................. 4-126
4.10.8 Fuser center thermostat (THMO1)/fuser front thermostat (THMO2) ............. 4-127
4.10.9 Center thermistor (THMS1)/side thermistor (THMS2)/
edge thermistor (THMS3) .............................................................................. 4-128
4.10.10 Center heater lamp (LAMP1)/side heater lamp (LAMP2) .............................. 4-131
4.10.11 Pressure roller ............................................................................................... 4-134
4.10.12 Fuser roller..................................................................................................... 4-135
4.11 Paper Exit and Reverse Sections ................................................................................. 4-138
4.11.1 Reverse unit <35ppm/45ppm/50ppm> .......................................................... 4-138
4.11.2 Paper exit unit <35ppm/45ppm/50ppm>........................................................ 4-139
4.11.3 Paper exit unit <20ppm/25ppm/30ppm>........................................................ 4-140
4.11.4 Lower exit roller ............................................................................................. 4-140
4.11.5 Exit motor (M10) ............................................................................................ 4-142
4.11.6 Reverse motor (M13) <35ppm/45ppm/50ppm>............................................. 4-144
4.11.7 Reverse gate solenoid (SOL1) <35ppm/45ppm/50ppm> .............................. 4-145
4.11.8 Upper exit roller <35ppm/45ppm/50ppm> ..................................................... 4-146
4.11.9 Reverse roller <35ppm/45ppm/50ppm> ........................................................ 4-148
e-STUDIO2008A/2508A/3008A/3508A/4508A/5008A
CONTENTS
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