Ricoh B234 - Page 1235

OVERALL MACHINE INFROMATION
B835 36 SM
Sensors
No. Name Description
S10 1st bottom plate position sensor Detects the top of the paper stack in the 1st tray
when it is at the proper height for feeding and
stops the 1st lift motor.
S11 2nd Lower Limit Sensor Detects 1) whether the 2nd tray is down or not
when the tray is not operating, and 2) detects
when the tray is full when the 2nd tray is
operating.
S12 2nd tray cover sensor Detects when the 2nd tray cover is open/closed.
S13 2nd paper set sensor Detects paper placed on the tray and starts the
2nd lift motor to raise the bottom plate. This
sensor also detects a jam if the paper stops and
does not leave the 2nd tray
S14 2nd Paper Feed Sensor Detects jams when the feed roller feeds paper
from the 2nd tray.
S15 2nd Paper Length Sensor Used in combination with 1st tray width sensors
to determine the size of paper in the 1st tray.
S16 2nd paper upper limit sensor When an actuator falls into the gap of this
sensor, this signals paper near end in the 2nd
tray.
S17 2nd Pick-up Roller HP Sensor Detects whether the 2nd pick-up roller is up or
not.
S18 2nd Transport Sensor Detects jams at the point where the 2nd
Transport roller pulls paper from the 1st tray.
S19 2nd bottom plate position sensor Detects the top of the paper stack in the 2nd tray
when it is at the proper height for feeding and
stops the 2nd lift motor.
S20 2nd Vertical Transport Sensor Detects jams in the vertical path after a sheet is
fed from the 2nd tray.
S21 Entrance Sensor Detects paper jams where paper from the copier
enters the unit in the horizontal feed path.
S22 Exit Sensor Detects jams where through-paper and covers
exit the unit.
S23 Vertical Exit Sensor Detects jams where through-paper and covers
exit the vertical feed path.
Switches
No. Name Description
SW1 Front Door Switch Detects whether the front door is properly closed.
The unit will not operate when the front door is
open.
SW2 Transport Cover Switch This is the cover on the right side of the tray unit.
Detects whether the cover is opened or closed.
SW3 1st Paper Width Switch Used in combination with the length sensors to
determine the size of paper in the 1st tray.
SW4 2nd Paper Width Switch Used in combination with the length sensors to
determine the size of paper in the 2nd tray.