Table Of Contents - Toshiba e-STUDIO 2555C Service Manual

4.2.1 Control Panel unit............................................................................................... 4-8
4.2.2 Key Board ......................................................................................................... 4-9
4.2.3 DSP board ......................................................................................................... 4-9
4.2.4 Touch Panel ..................................................................................................... 4-10
4.3 Scanner Unit ................................................................................................................... 4-12
4.3.1 Original Glass ................................................................................................... 4-12
4.3.2 Lens cover ....................................................................................................... 4-12
4.3.3 Automatic Original Detection Sensor-1, -2 (S24, S25) ...................................... 4-13
4.3.4 Lens unit/CCD driving PC board...................................................................... 4-13
4.3.5 Carriage Home Position Sensor (S23) .............................................................. 4-15
4.3.6 Exposure lamp (EXP) ...................................................................................... 4-15
4.3.7 Scan Motor (M1) .............................................................................................. 4-16
4.3.8 Platen Sensor-1, -2 (S21, S22) ........................................................................ 4-17
4.3.9 Carriage-1........................................................................................................ 4-18
4.3.10 Carriage Wire, Carriage-2 ................................................................................. 4-19
4.3.11 Scanner Damp Heater (Dh1)............................................................................ 4-23
4.4 Led Unit.......................................................................................................................... 4-24
4.4.1 Led Tray.......................................................................................................... 4-24
4.4.2 Discharge Led................................................................................................. 4-27
4.4.3 Led Printer Head.............................................................................................. 4-28
4.4.4 Led Spacer ...................................................................................................... 4-35
4.5 Paper Feeding System.................................................................................................... 4-36
4.5.1 Bypass Unit ...................................................................................................... 4-36
4.5.2 Bypass Feed Roller ............................................................................................ 4-39
4.5.3 Bypass Separation Roller .................................................................................. 4-40
4.5.4 Paper Width Detection Pc Board (Sfb Board) (S17)........................................ 4-41
4.5.5 Bypass Feed Sensor (S16) ............................................................................... 4-42
4.5.6 Side Cover Switch (Sw5).................................................................................. 4-43
4.5.7 Registration sensor (S19), Feed sensor (S20) ................................................ 4-43
4.5.8 Registration Roller (Plastic)............................................................................... 4-45
4.5.9 Registration Roller (Rubber) ............................................................................. 4-46
4.5.10 Jam Access Cover ............................................................................................ 4-48
4.5.11 Transport roller ................................................................................................ 4-48
4.5.12 Jam Access Cover Opening/Closing Switch (Sw20) .......................................... 4-50
4.5.13 2nd drawer paper feed sensor (S32) ............................................................... 4-51
4.5.14 1st drawer paper feed unit ............................................................................... 4-52
4.5.15 1st drawer separation roller guide ................................................................... 4-52
4.5.16 2nd drawer paper feed unit.............................................................................. 4-53
4.5.17 2nd drawer separation roller guide .................................................................. 4-54
4.5.18 1st drawer paper feed roller, separation roller, and pick-up roller ................... 4-55
4.5.19 2nd drawer paper feed roller, separation roller, and pick-up roller .................. 4-57
4.5.20 1st drawer detection switch (SW8) .................................................................. 4-58
4.5.21 2nd drawer detection switch (SW19) ............................................................... 4-59
4.5.22 Tray-up motor unit ........................................................................................... 4-59
4.5.23 Tray-Up Motor (M15) ........................................................................................ 4-60
4.5.24 1st drawer paper remaining sensor (S30) ....................................................... 4-60
4.5.25 2nd drawer paper remaining sensor (S33) ...................................................... 4-61
4.5.26 1st drawer empty sensor (S5) and 1st drawer tray-up sensor (S31) ............... 4-62
4.5.27 2nd drawer empty sensor (S34) and 2nd drawer tray-up sensor (S35)........... 4-64
4.5.28 1st drawer paper width detection switch (SW6)
and 1st drawer paper length detection switch (SW7) ...................................... 4-65
4.5.29 2nd drawer paper width detection switch (SW17)
and 2nd drawer paper length detection switch (SW18) ................................... 4-66
4.5.30 1st drawer feed clutch (CLT1) ......................................................................... 4-66
4.5.31 2nd drawer feed clutch (CLT4) ........................................................................ 4-68
4.5.32 Transport Clutch (H) (Clt5) ............................................................................. 4-69
4.5.33 Transport Clutch (L) (Clt6) ............................................................................. 4-70
4.5.34 Registration motor (M14) ................................................................................. 4-70
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