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Technology > Controls (ADF) > Document Pickup/Separation > Pickup Unit and Stopper
Technology > Controls (ADF) > Document Pickup/Separation > Pickup Unit and Stopper
Feed
The pickup/feed motor (M1) turns in the reverse direction to drive the registration clutch (CL2),
thus allowing the registration roller to feed the document.
The read roller feeds the document to the read wait point.
When the document reaches the read wait point, the pickup/feed motor (M1) stops.
Read roller 1
Read wait point
Registration
roller
CL2
M1
Stream reading
When the leading edge of the document reaches the reading point, an image leading edge
signal is sent to the host machine to start stream reading.
"Stream reading" is a scan mode in which a document is moved on the optical system's glass
using the platen roller.
The read image is stored in the memory of the host machine.
Platen roller
LED
Read roller 2
Read glass
M1
F-2-20
F-2-21
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Pickup Unit and Stopper
The pickup unit consists of a pickup roller and feed roller.
When the print start key is pressed or a document pickup signal is input, the pickup/feed
motor (M1) turns in the reverse direction to lower the pickup unit via the pickup clutch (CL1),
turning the pickup roller and feed roller to feed the document.
The stopper rises in conjunction with the pickup roller unit.
When the document is picked up, the separation pad and separation plate prevent multiple
sheets from being fed together.
When the document is fed to the registration roller to be looped, the registration clutch (CL2)
operates and the power of the pickup/feed motor is transmitted to the registration roller to
feed the document.
Pickup clutch (CL1)
ADF motor
Stopper arm
Stopper arm
Document
Pickup roller
Separation pad unit
Feed roller
F-2-22
