Ricoh B064 SERIES Service Manual page 1268

ELECTRICAL COMPONENTS
No. Component
Sensor
S18 Stapler Rotation HP
Sensor
S19 Upper Tray Full Sensor
(B700/B701)
S20 Upper Tray Full Sensor
(B701 only)
S21 Punch Unit HP Sensor
S22 Paper Position Side HP
Sensor
S23 Punch HP Sensor
S24 Punch Encoder Sensor
S25 Clamp Roller HP Sensor
S26 Fold Unit Entrance
Sensor
S27 Stack Junction Gate HP
Sensor
S28 Fold Bottom Fence HP
Sensor
S29 Fold Plate HP Sensor
S30 Fold Plate Cam HP
Sensor
S31 Fold Unit Exit Sensor
B700/B701
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steel rod where the corner stapler travels, this sensor detects
the home position of the corner stapler. The corner stapler is
in its home position when the actuator on the corner stapler
unit interrupts this sensor.
Controls the angle of the position of the corner stapler during
oblique stapling.
B700: When the actuator on the side of the upper fence
enters the gap of this sensor, the sensor signals that the
upper tray is at its lowest position (full) and stops the job.
B701: One of two upper tray full sensors. This is the higher
tray full sensor for A3 and other heavy paper. The other
upper tray full sensor (20) is for lighter paper.
B700: This sensor is not used on the booklet finisher. There
is only one upper tray full sensor (S18).
B701: One of two upper tray full sensors. This is the lower
tray full sensor for A4 and smaller paper. The other upper
tray full sensor (19) is for larger paper.
Switches off the punch movement motor when the punch unit
returns to its home position. Pulse counts determine where
the punch unit pauses for punching and reversing.
Controls the movement of the paper position detection unit.
Switches on when the horizontal detection unit is at the home
position (HP is the reference point).
Detects the home position of the punch unit and controls the
vertical movement of the punches when they fire.
When the punch mode is selected for the job (2-hole, 3-hole,
etc.), the machine controls the operation of the punch drive
(M24) motor which drives a small encoder shaped like a
notched wheel. This wheel is rotated forward and reverse
precisely to select which punches are moved up and down
during the punch stroke.
Controls the movement of the clamp retraction roller (the idle
roller of the clamp roller pair).
Detects 1) the leading edge of the stack during booklet
stapling, and 2) also used to signal an alarm if a paper is
detected at the entrance of the fold unit when the copier is
turned on.
Controls the opening and closing of the stack junction gate.
Switches on when the stack junction gate is open and at the
home position.
Controls the movement of the bottom fence in the folding unit
using pulse counts based on the size of the paper selected
for the job to position the stack correctly for feeding.
Along with the fold plate cam HP sensor (S30) this sensor
controls the movement of the fold plate . The fold plate has
arrived at the home position when the edge of the plate
enters the gap of this sensor.
Along with the fold plate HP sensor (S29), this sensor
controls the movement of the fold plate. The actuator
mounted on the end of the roller that drives the folder plate
forward and back makes three full rotations, i.e. the actuator
passes the sensor gap twice and stops on the 3rd rotation
and reverses. This accounts for the left and right movement
of fold plate.
1) Detects the folded edge of the stack as it feeds out from
the nip of the fold rollers, stops the rollers, and reverses them
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Function
SM