Ricoh B132 Service Manual page 882

SPECIFICATIONS
No. Component
QUENCHING LAMPS
QL1 Quenching Lamp - K
QL2 Quenching Lamp - C
QL3 Quenching Lamp - M
QL4 Quenching Lamp - Y
No.
SENSORS
S1 ID Sensor - Black
S2 ID Sensor - Color
S3 ITB Lift Sensor
S4 MUSIC Sensor - Center
S5 MUSIC Sensor - Front
S6 MUSIC Sensor - Rear
S7 Paper Feed Sensor - Tray 2
S8 Vertical Transport Sensor -
Tray 2
S9 Paper End Sensor - Tray 2
S10 Lift Sensor - Tray 2
S11 Paper Feed Sensor - Tray 3
B132/B200
Eliminates electrical charge and neutralizes the surface of
the drum in the Black PCU.
Eliminates electrical charge and neutralizes the surface of
the drum in the Cyan PCU.
Eliminates electrical charge and neutralizes the surface of
the drum in the Magenta PCU.
Eliminates electrical charge and neutralizes the surface of
the drum in the Yellow PCU.
Component
Function
Function
Reads 1) light reflected from the bare surface of the
ITB, and 2) reads light reflected from the black ID
sensor patterns on the ITB.
Reads 1) light reflected from the bare surface of the
ITB, and 2) reads light reflected from the color ID
sensor patterns on the ITB. This sensor has one
additional receptor to collect diffuse light reflected
from color toner to improve calculation of the toner
density.
This sensor switches the ITB lift motor off when the
ITB comes into contact the drums of the four PCUs.
Reads the center MUSIC pattern. This feedback is
used to control the MUSIC process to correct color
registration errors.
Reads the front MUSIC pattern. This feedback is
used to control the MUSIC process to correct color
registration errors.
Reads the Rear MUSIC pattern. This feedback is
used to control the MUSIC process to correct color
registration errors.
Detects the leading edge of each sheet of paper
from the pick–up roller of tray (middle tray) and
switches off the pick–up roller solenoid so the pick–
up roller lifts.
Detects the leading edge and trailing edge of each
sheet fed from tray 2 and signals a jam if the edges
do not pass at the prescribed time.
Receives light reflected from the paper until the last
sheet is fed from tray 2 (middle tray), then signals
paper end.
Detects when the pick– up roller (pushed up by the
top of the paper stack in the right side of the
tandem tray) has reached the correct height for
paper feed and then switches off the tray 2 (middle
tray) lift motor.
Detects the leading edge of each sheet of paper
from the pick–up roller of tray 3 (bottom tray) and
switches off the pick–up roller solenoid so the pick–
up roller lifts.
7-24 SM