7.5 DF MOTOR CIRCUIT
The DF motor is a 24 volt dc motor. When the CPU receives the feed signal
from the copier, the CPU outputs the ON signal and the Forward signal to the
gate IC. On receipt of the forward signal from the gate IC, the driver IC
outputs 24 volts to CN117-1 and 0 volts to CN117-2. This causes the DF
motor to start turning in the forward direction.
Within 10 to 25 pulses after the original’s trailing edge passes through the
registration sensor, the CPU stops sending the ON signal and the Forward
signal. The DF motor stops turning. Then the CPU outputs the ON signal and
the reverse signal for 15 pulses. Then the driver IC outputs 0 volts to
CN117-1 and +24 volts to CN117-2 to reverse the DF motor.
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Summary of Contents for A151
Page 1: ...SERVICE MANUAL PN RCFM3213 A151 A152 A202 A203 RICOH GROUP COMPANIES ...
Page 2: ...SERVICE MANUAL A151 A152 A202 A203 RICOH GROUP COMPANIES ...
Page 3: ...A151 A152 A202 A203 FIELD SERVICE MANUAL PN RCFM3213 ...
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Page 372: ...Tech Service Bulletin No 3013 3213 008 Page 2 of 3 Continued ...
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