Jam Detection - Ricoh B039 Service Manual

2.6 JAM DETECTION

JAM 1A: If the registration sensor does not turn on within X1 ms after original
feed starts.
X1 = (114 x 1.1)/line speed + 2,000 ms
JAM 1B: If the registration sensor does not turn on within 685 ms after the
leading edge of the original reaches the original reverse sensor (duplex
mode only)
JAM 2: If the registration sensor does not turn off within X2 ms after turning on.
X2 = (Original length/line speed) +2,000 ms
JAM 3: If there is no original at the registration sensor when scanning is started,
even though the sensor had already turned on.
The operator may then remove the original from the ADF.
JAM 4: The current original is stopped after the registration sensor detects its
leading edge, but the previous original is still at the scanning position.
JAM 5: If the original exit sensor does not turn on within X3 ms after the
registration sensor turns on.
X3 = 140 mm/line speed
JAM 6: If the original exit sensor does not turn off within X4 ms after the original
exit sensor turns on.
X4 = (Original length/line speed) +2,000 ms
JAM 7: If the original reverse sensor does not turn on within 2,329 ms after the
reversing process begins (Duplex mode only).
JAM 8: If the original stopped at the stamp position is removed.
JAM 9: If the cover is opened or the ADF is lifted up while the ADF is in
operation.
JAM 10: If the DF gate signal (indicating that the original is now in the correct
position for scanning) is not asserted when the original trailing edge
passes the DF exposure glass.
JAM 10 occurs when the original is pulled out while it is being scanned.
SM 7-15
JAM DETECTION
B379