Sharp AR-RB1 Service Manual page 10

(3) Reverse tray delivery operation
A. When paper length is 249mm or less (letter size or less)
(Both the paper input motor and upper turnover motor operate)
The paper input motor and
upper turnover motor are
caused to turn in time with the
copier processing speed, thus
transporting the paper.
The upper turnover motor is
caused to revolve in the paper
delivery direction, and the paper
is discharged.
Transport speed
(high speed)
The relation between the process speed and the transport speed in
RB1 is as follow.
Copier RB1 transport
Paper kind process speed
speed (high speed)
Normal paper 117/140
Thick paper 1 58.5
When the trailing edge of the paper
reaches a point 13mm from the copier
POD off, the transport speed in RB1
is accelerated.
Trailing edge of paper reaches
point 13mm from POD off
Processing speed
When the trailing edge of the paper
reaches a point 50mm before the
delivery roller, the transport speed
decreases.
Trailing edge of paper
reaches point 50mm
before delivery roller
Transport
(low speed)
RB1 transport
Paper size speed
(low speed)
550 A3/A3W 450
/EXTRA
A4R 430
A4/B5/B5R 400
B4/A5 320
195 All size 195
Unit: mm/s
AR-RB1 DESCRIPTION OF OPERATION 4 - 3
Transport speed
(high speed)
speed
Sensor input, motor output, solenoid output timing is as below.
POD
(Paper exit sensor)
BPPD1
(Transport sensor 1)
BPOD
(Paper-out sensor)
BIM
(Paper-in motor)
(Direction of paper-in)
BRM
(Upper reverse motor)
(Direction of paper-out)
BGSOL
(Gate solenoid)
When the trailing edge of
the paper reaches the upper
reverse stop point, the
motor stops.
After the trailing edge of the paper
passes the delivery roller, the
upper turnover motor stops.
Motor stop
(discharge complete)
High speed
Process speed
High speed
Motor stop
(paper stop)
Low speed