Ricoh B064 Service Manual page 677

J1 Timing: After the leading edge of the sheet activates the mailbox exit sensor,
a misfeed is detected if the sensor does not switch off within:
Where X = The amount of time prescribed for the paper size to pass
the sensor. (X = 1.74 s for A4 Sideways for example)
J2 Timing: After the mailbox paper exit sensor is activated, the machine
determines that the paper has not yet fed and detects a misfeed if the
vertical transport sensor does not activate within the time prescribed
for the paper size (1.94 s for A4 paper, for example)
J3 Timing: After the vertical transport sensor is activated, a misfeed is detected if
the vertical transport sensor does not turn off within:
Where X = The amount of time prescribed for the paper size to pass
the sensor. (X = 2.26 s for A4 Sideways for example)
SM
X+0.5 s
X+0.52 s
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PAPER MISFEED DETECTION TIMING
B471