Table of contents ix
4024-XXX
Xerographic Process During a Print Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-46
Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47
Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48
Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52
Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52
Safety system diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53
Repair information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Handling ESD-sensitive parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Removal procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Before starting service work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
2X 500-sheet drawer (2TM) removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
2X 500-sheet drawer (2TM)—top cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
2X 500-sheet drawer (2TM)—foot cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
2X 500-sheet drawer (2TM)—right cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
2X 500-sheet drawer (2TM)—left cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
2X 500-sheet drawer (2TM)—rear cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
2X 500-sheet drawer (2TM)—2TM/TTM left door assembly removal . . . . . . . . . . . . . . . . . . . . . . . 4-6
2X 500-sheet drawer (2TM)—caster removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
2X 500-sheet drawer (2TM)—switch (media size) assembly removal . . . . . . . . . . . . . . . . . . . . . . 4-8
2X 500-sheet drawer (2TM)—media feed unit assembly removal (tray 3) . . . . . . . . . . . . . . . . . . 4-9
2X 500-sheet drawer (2TM)—media feed unit assembly removal (tray 4) . . . . . . . . . . . . . . . . . 4-11
2X 500-sheet drawer (2TM)—media tray guides removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
2X 500-sheet drawer (2TM)—media tray end guide removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
2X 500-sheet drawer (2TM)—tray lift gear group removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
2X 500-sheet drawer (2TM)—media feed lift motor removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
2X 500-sheet drawer (2TM)—lift coupling assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
2X 500-sheet drawer (2TM)—tray lift one-way gear clutch assembly removal . . . . . . . . . . . . . 4-19
2X 500-sheet drawer (2TM)—media feed unit drive gear - 13 tooth removal . . . . . . . . . . . . . . . 4-21
2X 500-sheet drawer (2TM)—media out actuator removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
2X 500-sheet drawer (2TM)—sensor (media level) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
2X 500-sheet drawer (2TM)—sensor (media out) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
2X 500-sheet drawer (2TM)—sensor (pre-feed) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
2X 500-sheet drawer (2TM)—media feed unit drive gear - 28 / 21 tooth removal . . . . . . . . . . . 4-26
2X 500-sheet drawer (2TM)—media feed unit drive gear - 29 tooth removal . . . . . . . . . . . . . . . 4-27
2X 500-sheet drawer (2TM)—feed roll removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
2X 500-sheet drawer (2TM)—feed roll one-way clutch removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
2X 500-sheet drawer (2TM)—feed roll one-way gear 22 tooth removal . . . . . . . . . . . . . . . . . . . 4-30
2X 500-sheet drawer (2TM)—separation roll one-way friction clutch removal . . . . . . . . . . . . . 4-31
2X 500-sheet drawer (2TM)—separation roll removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
2X 500-sheet drawer (2TM)—pick roll idler gear - 33 tooth removal . . . . . . . . . . . . . . . . . . . . . . 4-33
2X 500-sheet drawer (2TM)—pick roll removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
2X 500-sheet drawer (2TM)—pick roll drive gear 25 tooth removal . . . . . . . . . . . . . . . . . . . . . . 4-35
2X 500-sheet drawer (2TM)—feed unit drive gear - 27 tooth removal . . . . . . . . . . . . . . . . . . . . . 4-36
2X 500-sheet drawer (2TM)—sensor (tray 3 feed-out) removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37
2X 500-sheet drawer (2TM)—sensor (tray 4 feed-out) removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
2X 500-sheet drawer (2TM)—upper media transport roll removal . . . . . . . . . . . . . . . . . . . . . . . 4-39
2X 500-sheet drawer (2TM)—lower media transport roll assembly removal . . . . . . . . . . . . . . . 4-40
2X 500-sheet drawer (2TM)—left door pinch roll assembly removal . . . . . . . . . . . . . . . . . . . . . 4-41
2X 500-sheet drawer (2TM)—switch (2TM/TTM left door interlock) removal . . . . . . . . . . . . . . . 4-42
2X 500-sheet drawer (2TM)—2TM/TTM controller card assembly removal . . . . . . . . . . . . . . . . 4-43
2X 500-sheet drawer (2TM)—transport clutch removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
2X 500-sheet drawer (2TM)—drive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
