Adf - Ricoh IS450S Service Manual

22 December 1998

1.4.2 ADF

25
24
23
22
21
No. Name
ADF interlock switch
12
13 Paper transport motor
Feed sensor
14
15 Read sensor
16 Paper feed motor
CIS (Duplex model only) Contains the CCDs and LEDs that scan the reverse
17
18 EDU (Option)
Endorser solenoid
19
(Option)
20 Relay sensor
21 Feed-out sensor
Document sensor
22
23 ADU
Document table position
24
sensor
25 Pick-up clutch
Document table lift
26
clutch
26
20
Detects whether the ADF cover and platen cover are
open or closed; cuts the power supply to the machine.
Drives the paper transport drum.
Detects when a document is just before the feeding
position.
Synchronizes the original exposure timing.
This drives the pick-up and feed rollers.
side of the original.
Controls the mechanical parts of the endorser.
Moves the paper holding plate to hold the original at the
endorser's printing position.
Checks for original misfeeds.
Detects when a document is at the feed-out position.
Detects when a document is placed on the document
table.
Controls the mechanical parts of the ADF.
Detects if the document table is at the feed position or
not.
Controls pick-up roller rotation.
Switches on to lift the document table up or down.
1-9
ELECTRICAL COMPONENT LAYOUT
12
13
14
19
G411V505.WMF
Function
15
16
17
18