e-STUDIO2008A/2508A/3008A/3508A/4508A/5008A © 2015 TOSHIBA TEC CORPORATION All rights reserved
CONTENTS
2
3.12 DRUM RELATED SECTION...........................................................................................3-50
3.12.1 Configuration ...................................................................................................3-50
3.12.2 Composition.....................................................................................................3-50
3.12.3 Functions .........................................................................................................3-51
3.13 DEVELOPMENT SYSTEM .............................................................................................3-53
3.13.1 Configuration ...................................................................................................3-53
3.13.2 Construction.....................................................................................................3-53
3.13.3 Functions .........................................................................................................3-54
3.14 FUSER UNIT...................................................................................................................3-57
3.14.1 General Description.........................................................................................3-57
3.14.2 Composition.....................................................................................................3-58
3.14.3 Functions .........................................................................................................3-59
3.14.4 Operation.........................................................................................................3-60
3.14.5 Heater Control Circuit ......................................................................................3-61
3.15 PAPER EXIT SECTION/REVERSE SECTION...............................................................3-62
3.15.1 General Description.........................................................................................3-62
3.15.2 Functions .........................................................................................................3-63
3.15.3 Exit Motor / Reverse Motor Drive.....................................................................3-64
3.16 AUTOMATIC DUPLEXING UNIT (ADU)......................................................................... 3-65
3.16.1 General Description.........................................................................................3-65
3.16.2 Composition.....................................................................................................3-66
3.16.3 Functions .........................................................................................................3-67
3.16.4 Description of Operations ................................................................................3-67
3.16.5 Drive of ADU....................................................................................................3-68
3.17 POWER SUPPLY UNIT..................................................................................................3-69
3.17.1 Construction.....................................................................................................3-69
3.17.2 Explanation of functions...................................................................................3-69
3.17.3 Operation of DC Output Circuits ......................................................................3-70
3.17.4 Output Channel................................................................................................3-72
3.17.5 Fuse.................................................................................................................3-73
4. DISASSEMBLY AND REPLACEMENT........................................................................4-1
4.1 Covers...............................................................................................................................4-1
4.1.1 Front cover.........................................................................................................4-1
4.1.2 Left cover...........................................................................................................4-1
4.1.3 Receiving tray....................................................................................................4-2
4.1.4 Tray rear cover ..................................................................................................4-2
4.1.5 Left top cover.....................................................................................................4-3
4.1.6 Left rear cover....................................................................................................4-3
4.1.7 Connecting port cover........................................................................................4-3
4.1.8 Right top cover...................................................................................................4-4
4.1.9 Right front cover ................................................................................................4-4
4.1.10 Right rear cover .................................................................................................4-4
4.1.11 Front top cover...................................................................................................4-5
4.1.12 Control panel lower cover.................................................................................. 4-5
4.1.13 Front right cover.................................................................................................4-6
4.1.14 Rear top cover ...................................................................................................4-6
4.1.15 Rear cover .........................................................................................................4-6
4.1.16 Front cover switch (SW4) .................................................................................. 4-7
4.1.17 Front cover interlock switch (SW2) ....................................................................4-7
4.2 Control Panel ....................................................................................................................4-8
4.2.1 Control panel unit...............................................................................................4-8
4.2.2 Hinge cover......................................................................................................4-10
4.2.3 USB harness/signal harness ...........................................................................4-11
4.2.4 KEY board/button ............................................................................................4-13
4.2.5 DSP board .......................................................................................................4-16
4.3 Scanner Unit ...................................................................................................................4-18
4.3.1 Original glass...................................................................................................4-18
4.3.2 Lens cover .......................................................................................................4-18
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