Function Mode Phase
Pattern
Speed
Copy Fine or
photo
1-2 432 pps (t=1/
432)
Super Fine 1-2 216 pps (t=1/
216)
Paper
Feed
——— 1-2 432 pps (t=1/
432)
Stand-by ———
All phases
are
currently
off.
None
The motor suspends while it is in the receive mode (about 70~80 msec), pin 124 of ASIC IC501
becomes a low level and Q503 turns OFF. Then Q502 also turns OFF, and instead of +24 V, +5 V
is supplied through D501 so that the motoris held in place. When the system is in the stand-by
mode, all of the motor drive transistors turn OFF. Consequently, the motor current stops.
7.5. GEAR SECTION
Refer to GEAR SECTION () for Gear operation.
7.6. SENSORS AND SWITCHES
All of the sensor and switches are shown below. See TEST FUNCTIONS(). (#815: Sensor Check)
169
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