Toshiba E-STUDIO2508A - Precautions for [File]

© 2015 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2008A/2508A/3008A/3508A/4508A/5008A
CONTENTS
3
4.3.3 Automatic original detection sensor-1, -2 (S1, S2) ..........................................4-19
4.3.4 Lens unit/CCD driving PC board......................................................................4-19
4.3.5 Carriage home position sensor (S3)................................................................4-22
4.3.6 Exposure lamp (EXP) ......................................................................................4-23
4.3.7 Scan motor (M1)..............................................................................................4-24
4.3.8 Platen sensor (S20, S21).................................................................................4-26
4.3.9 Carriage-1........................................................................................................4-27
4.3.10 Carriage wire, carriage-2 .................................................................................4-29
4.3.11 Scanner damp heater (DH2)............................................................................4-33
4.4 Writing Section................................................................................................................4-34
4.4.1 Laser optical unit..............................................................................................4-34
4.5 Paper Feeding System....................................................................................................4-37
4.5.1 Bypass unit ...................................................................................................... 4-37
4.5.2 Bypass feed roller............................................................................................4-39
4.5.3 Bypass separation roller ..................................................................................4-42
4.5.4 Paper size detection board..............................................................................4-43
4.5.5 Bypass paper sensor (S8) ...............................................................................4-44
4.5.6 ADU opening/closing switch (SW5) .................................................................4-47
4.5.7 Registration sensor (S17), 1st transport sensor (S16) ....................................4-48
4.5.8 Registration roller (on the equipment side)......................................................4-51
4.5.9 Registration roller (on the ADU side)...............................................................4-52
4.5.10 Feed cover.......................................................................................................4-53
4.5.11 Transport roller ................................................................................................4-54
4.5.12 Feed cover opening/closing switch (SW10).....................................................4-56
4.5.13 2nd transport sensor (S9)................................................................................4-57
4.5.14 1st drawer paper feed unit...............................................................................4-58
4.5.15 1st drawer separation roller guide ...................................................................4-59
4.5.16 2nd drawer paper feed unit..............................................................................4-61
4.5.17 2nd drawer separation roller guide ..................................................................4-61
4.5.18 1st drawer paper feed roller, separation roller, and pick-up roller ...................4-63
4.5.19 2nd drawer paper feed roller, separation roller, and pick-up roller ..................4-65
4.5.20 1st drawer detection switch (SW11) ................................................................4-66
4.5.21 2nd drawer detection switch (SW12)...............................................................4-67
4.5.22 Upper tray-up motor unit..................................................................................4-68
4.5.23 Lower tray-up motor unit..................................................................................4-68
4.5.24 Upper tray-up motor (M11) ..............................................................................4-69
4.5.25 Lower tray-up motor (M12) ..............................................................................4-70
4.5.26 1st drawer paper stock sensor (S10)...............................................................4-70
4.5.27 2nd drawer paper stock sensor (S13)..............................................................4-71
4.5.28 1st drawer empty sensor (S12) and 1st drawer tray-up sensor (S11).............4-72
4.5.29 2nd drawer empty sensor (S15) and 2nd drawer tray-up sensor (S14)...........4-73
4.5.30 1st drawer paper width detection switch (SW6) and
1st drawer paper length detection switch (SW7) .............................................4-74
4.5.31 2nd drawer paper width detection switch (SW8) and
2nd drawer paper length detection switch (SW9)............................................4-75
4.5.32 High speed transport clutch (CLT5).................................................................4-76
4.5.33 Low speed transport clutch (CLT6).................................................................. 4-78
4.5.34 1st drawer feed clutch (CLT3) .........................................................................4-78
4.5.35 2nd drawer feed clutch (CLT4) ........................................................................4-79
4.5.36 Flywheel...........................................................................................................4-80
4.5.37 Registration roller clutch (CLT1)......................................................................4-80
4.5.38 Paper feed drive unit........................................................................................4-81
4.5.39 Paper feed drive gear ...................................................................................... 4-82
4.6 Driving section.................................................................................................................4-85
4.6.1 Main motor (M8) <35ppm/45ppm/50ppm> ......................................................4-85
4.6.2 Main motor (M8) <20ppm/25ppm/30ppm> ......................................................4-85
4.7 Drum Related Section.....................................................................................................4-87
4.7.1 Process unit.....................................................................................................4-87