Panasonic KX-FP207FX-S

27
KX-FP207FX-S/FP218FX-S
6.4.5. Stepping Motor Drive Circuit
1. Function
The stepping motor works for both transmission and reception.
2. Motor
During motor driving, pin 124 of ASIC IC501 becomes a high level, and Q403, Q402 turns ON. As a result, +24V is supplied to
the motor coil.
Stepping pulses are output from ASIC IC501 pins, 124, 120~123, causing driver IC401 pins, 14~11 to drive the Motor Coil.
The motor coil is energized sequentially in 2 phase increments, which causes a 1-step rotation. A 1-step rotation feeds 0.13
mm of recording paper or document paper.
The timing chart is below.
Stepping Motor Drive Mode
Function Mode Phase Pattern Speed
Copy Fine, Photo 1-2 432 pps (t=1/432)
Super Fine 1-2 216 pps (t=1/216)
FAX Sending Standard 2-2 432 pps (t=1/432)
Fine, Photo 1-2 432 pps (t=1/432)
Super Fine 1-2 216 pps (t=1/216)
FAX Receiving Standard, Fine, 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)
Document Feed ——— 1-2 432 pps (t=1/432)
Stand-by ——— All phases are currently off. None