Ricoh A66 - Pick-Up Roller Pressure Mechanism

8.3.5 Pick-up Roller Pressure Mechanism
This by-pass feed table uses a pick-up roller pressure mechanism, which
has two pick-up solenoids. This system uses the main pick-up solenoid [A]
and the sub pick-up solenoid [B] to change the pick-up roller pressure, to
adapt to various paper types and copy modes.
The pick-up roller is lifted by springs [C] on the arm when the copier is not
operated. When the copier is started, the pick-up roller is lowered onto the
paper by the main pick-up solenoid spring [D]. The sub pick-up solenoid
assists the main pick-up solenoid to increase the pressure via the sub
pick-up solenoid spring [E].
Mode Timing Chart
Normal Paper
(Normal speed)
–Manual duplex machine
only–
Duplex Mode
<reverse side>
(Normal Speed)
Thick Paper Mode
(Half Speed)
•
OHP Mode
(Half speed)
•
Thick Paper Mode
(Half speed)
<reverse side>
[D]
[C]
[B]
[E]
[A]
PAPER FEED AND REGISTRATION
A166/A187/A189 2-122 SM