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ENWW iii
Contents
1 ADF overview
Automatic document feeder product
specifications. . . . . . . . . . . . . . . . . . . . . . . .2
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Functions. . . . . . . . . . . . . . . . . . . . . . . . . . .2
Machine data. . . . . . . . . . . . . . . . . . . . . . . .2
Maintenance . . . . . . . . . . . . . . . . . . . . . . . .3
Operating environment . . . . . . . . . . . . . . . .3
Center cross-sectional drawing. . . . . . . . . . . . . .4
Drive system diagram . . . . . . . . . . . . . . . . . . . . . 5
Original conveyance process . . . . . . . . . . . . . . .6
Single side original copy mode . . . . . . . . . .6
Double side original copy mode . . . . . . . . .7
Mixed original copy mode . . . . . . . . . . . . . .8
Z-fold original copy mode . . . . . . . . . . . . . .8
2 ADF unit explanation
External section. . . . . . . . . . . . . . . . . . . . . . . . .10
Composition . . . . . . . . . . . . . . . . . . . . . . .10
Mechanism . . . . . . . . . . . . . . . . . . . . . . . .10
Original feed/conveyance/exit section. . . . . . . . 11
Composition . . . . . . . . . . . . . . . . . . . . . . .11
Mechanism . . . . . . . . . . . . . . . . . . . . . . . .11
Original feed/conveyance/scan control . . .12
Original reversal and conveyance
control . . . . . . . . . . . . . . . . . . . . . . . .16
Original size detection control. . . . . . . . . .18
3 ADF disassembly/assembly
External section. . . . . . . . . . . . . . . . . . . . . . . . . 22
Removing the ADF . . . . . . . . . . . . . . . . . .22
Reinstalling the ADF . . . . . . . . . . . . . . . . .24
Original feed/conveyance/exit section. . . . . . . . 26
Replacing the pick roller and
conveyance roller rubber . . . . . . . . .26
Cleaning the cleaning pad. . . . . . . . . . . . .27
Replacing the separation roller/
separation roller rubber. . . . . . . . . . .27
Index
Contents