Jam Detection - Ricoh C231 Service Manual

JAM DETECTION

6.10 JAM DETECTION
6.10.1 MASTER EJECT JAM (E JAM LOCATION INDICATOR)
Picking up the used master from the drum
Main motor (30 rpm)
Clamper
Master eject motor
Master eject sensor
Jam check timing: When the clamper open sensor is on (clamper open).
Check 1: If the master eject motor is still on after 1.0 second, and the master eject
sensor doesn't detect the master, the machine goes on to check 2.
Check 2: When the clamper opens and closes again, and the drum has rotated 1.0
s, if the master eject sensor doesn't detect the master, the E jam
indicator will light.
Compressing the used master
Pressure plate HP sensor
Pressure plate limit sensor
Pressure plate motor
Master eject sensor
Jam check timing: When moving the pressure plate.
Check: If the master eject sensor detects a master when the pressure plate limit
sensor turns on (pressure plate at lower limit), the E jam indicator lights.
Just after turning on the main switch
Jam check timing: Just after the main switch has been turned on.
Check: If the master eject sensor is on (master detected), the E jam indicator
lights.
C231/C237/C238
Open
Close
1.0 s
Check 1
C h e c k
6-44
1.0 s
Open
Close
Check 2
C238D532.WMF
C238D533.WMF
SM