Ricoh B234 Service Manual page 1086

Motors
No. Name
M28 Lower Transport Motor
M29 Punch Motor
M30
Shift Tray Jogger Motor
M31
Shift Tray Jogger Retraction
Motor
PCBs
No. Name
PCB Main Board (Output Jogger)
PCB Main Board
Sensors
No. Name
S01 Entrance Sensor
S02 Upper Tray Exit Sensor
S03 Upper Tray Full Sensor
S04 Shift Tray Exit Sensor 1
S05 Shift Tray Exit Sensor 2
S06 Exit Guide HP Sensor
S07 Paper Height Sensor –
Standby Mode
S08 Paper Height Sensor –
Staple Mode
S09 Paper Height Sensor – Z-
Fold Full
S10 Paper Height Sensor –
Shift/Z-Fold
S11 Drag Drive HP Sensor
S12 Shift Tray Half-Turn Sensor
1
S13 Shift Tray Half-Turn Sensor
2
S14 Upper Tray Junction Gate
HP Sensor
S15 Stapler Junction Gate HP
Sensor
S16 Pre-Stack Junction Gate
HP Sensor
S17 Pre-Stack Tray Paper
Sensor (Right)
S18 Shift Tray Full Sensor
S19 Shift Tray Full Sensor
(Large Paper)
S20 Shift Tray Near-Full Sensor
S21 Stapler Tray Exit Sensor
S22 Staple Trimmings Hopper
SM
OVERALL MACHINE INFORMATION
Description
Drives the rollers that transport paper in the shift and stapling
paper path.
Drives the punch shaft and roller.
Drives the shift tray jogger fences against the sides of the sheets
to align the stack, then reverses to return them to the home
position
Raises the shift tray jogger fences after aligning the stack, then
reverses and lowers them to them to the home position.
Controls operation of the shift and output jogger mechanisms.
Controls the finisher and communicates with the copier.
Description
Detects the copy paper entering the finisher and checks for
misfeeds.
Checks for misfeeds at the upper tray.
Detects when the upper tray is full.
Controls the output timing of stapled stacks and detects jams.
Controls the timing of paper in the shift path and detects paper
jams.
Detects whether the guide plate is opened or not.
Detects the height of the tray when the machine is turned on to
position the tray at the standby position.
Detects the height of the paper output on the shift tray and adjusts
the height of the tray in the staple mode.
Detects the height of the paper output on the shift tray and signals
when the tray is full when Z-folded paper is output to the shift tray.
Detects the amount of paper on the shift tray 1) in shift
mode to control operation of the tray lift motor, and 2) when
Z-folded paper is output to the shift tray.
Controls the push and pull movement of the drag roller when it
extends and drags paper back against the back of the shift tray to
keep the edge of the stack aligned on the shift tray.
Detects whether the shift tray is at either the front or back position.
Controls the side-to-side movement of the shift tray. (This pair of
sensors is used to detect the positions of the leading and trailing
edges of the sheets controls operation of the shift mechanism.)
Detects whether the shift tray is at either the front or back position.
Controls the side-to-side movement of the shift tray.
Detects the upper tray junction gate at its home position.
Detects the staple junction gate at its home position.
Detects the pre-stack junction gate mechanism at its home
position.
Detects paper feed in the right side of the pre-stack unit and
detects jams.
Detects when the shift tray is full for paper smaller than B4. The
tray is at its lower limit.
Detects when the shift tray is full for large size paper (B4 or
larger).
Detects when the shift tray is nearly full.
Detects jams at the staple tray exit.
Detects when the staple trimmings hopper is full.
71
Description
B830