Toshiba e-STUDIO2330C Service Manual page 11

11.6.10 Bypass transport roller ................................................................................... 11-21
11.6.11 Bypass feed clutch (CLT8) ............................................................................ 11-21
11.6.12 Bypass separation roller ................................................................................ 11-22
11.6.13 Bypass feed sensor (S41) ............................................................................. 11-23
11.6.14 Drawer feeding unit........................................................................................ 11-24
11.6.15 Tray-up sensor (S31/S35) / Empty sensor (S32/S36) ................................... 11-24
11.6.16 Paper stock sensor (S33/S37)....................................................................... 11-24
11.6.17 Separation roller ............................................................................................ 11-25
11.6.18 Feed roller...................................................................................................... 11-26
11.6.19 Pickup roller ................................................................................................... 11-26
11.6.20 Drawer feed clutch (CLT3/CLT6) ................................................................... 11-27
11.6.21 Tray-up motor (M21) ...................................................................................... 11-27
11.6.22 Tray drive unit ................................................................................................ 11-29
11.6.23 2nd drawer transport clutch (Low speed) (CLT4) .......................................... 11-29
11.6.24 2nd drawer transport clutch (High speed) (CLT5) ......................................... 11-29
11.6.25 1st drawer detection switch (SW5) / 2nd drawer detection switch (SW6) ..... 11-30
11.6.26 Paper feed guide assembly ........................................................................... 11-30
11.6.27 2nd drawer feed sensor (S34) ....................................................................... 11-31
11.6.28 Side cover switch (SW4)................................................................................ 11-31
11.6.29 Registration guide.......................................................................................... 11-32
11.6.30 Registration sensor (S28) .............................................................................. 11-34
11.6.31 1st drawer feed sensor (S30) ........................................................................ 11-34
11.6.32 Registration roller (Rubber) ........................................................................... 11-35
11.6.33 Registration motor unit................................................................................... 11-36
11.6.34 Registration motor (M19) ............................................................................... 11-36
11.6.35 Registration roller (Metal) .............................................................................. 11-37
11.6.36 Paper dust holder .......................................................................................... 11-39
11.6.37 1st drawer transport clutch (Low speed) (CLT2) ........................................... 11-39
11.6.38 Feed/transport motor (M20)........................................................................... 11-40
11.6.39 Feed/transport gear unit ................................................................................ 11-40
11.6.40 1st drawer transport clutch (High speed) (CLT1)........................................... 11-40
11.6.41 1st drawer transport roller.............................................................................. 11-41
11.6.42 2nd drawer transport roller............................................................................. 11-41
11.7 Adjustment of the Paper Feeding System..................................................................... 11-42
11.7.1 Sheet sideways deviation caused by paper feeding...................................... 11-42
12. PROCESS UNIT RELATED SECTION....................................................................... 12-1
12.1 General description ......................................................................................................... 12-1
12.2 Composition .................................................................................................................... 12-2
12.3 Functions......................................................................................................................... 12-3
12.4 Description of Operation ................................................................................................. 12-5
12.4.1 Drum phase registration mechanism ............................................................... 12-5
12.5 Electric Circuit Description .............................................................................................. 12-7
12.5.1 High-voltage transformer control circuit ........................................................... 12-7
12.5.2 Drum Temperature Detection Circuit ............................................................... 12-9
12.5.3 Drum motor control circuit.............................................................................. 12-10
12.5.4 Drum switching motor control circuit .............................................................. 12-11
12.6 Disassembly and Replacement..................................................................................... 12-12
12.6.1 Process unit (EPU) ........................................................................................ 12-12
12.6.2 Process cover ................................................................................................ 12-13
12.6.3 Cleaning unit/ Developer unit......................................................................... 12-15
12.6.4 Main charger assembly.................................................................................. 12-15
12.6.5 Main charger cleaner .................................................................................... 12-16
12.6.6 Main charger grid .......................................................................................... 12-17
12.6.7 Needle electrode ........................................................................................... 12-17
12.6.8 Drum ............................................................................................................. 12-18
12.6.9 Drum cleaning blade ..................................................................................... 12-20
12.6.10 Drum thermistor (THM1, THM2) .................................................................... 12-21
12.6.11 Discharge LED (ERS-Y, ERS-M, ERS-C, ERS-K) ........................................ 12-22
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