Panasonic KX MC6020 - Color Laser - All-in-One Service Manual page 60

KX-MC6020HX
6.7.2.2. FB (FLATBED) Motor Drive Circuit
1. Functions
This motor functions for main operations includes FAX transmission, FB copy and PC scan.
This motor feeds CIS unit with synchronizing for reading.
2. Motor operation
During motor driving, pin AL33 of IC 300 become low level, then motor drive IC401 is activated.
Stepping pulses are output from IC300 pins AN34, AM33, AM34, AM31, AP32 and AN32 causing drive IC401 pin 3, 7, 9 and
13 to drive the motor coil.
A 1-step rotation of this motor feeds 0.021mm of CIS unit.
3. Circuit Diagram
6.7.2.3. ADF (AUTOMATIC DOCUMENT FEEDER) Motor Drive Circuit
1. Functions
This motor functions for main operations includes FAX transmission, ADF copy and PC scan.
This motor feeds document which are set to ADF with synchronizing for reading.
2. Motor operation
During motor driving, pin AL32 of IC 300 become low level, then motor drive IC402 is activated.
Stepping pulses are output from IC300 pins AN32, AM33, AM34, AM31, AP32 and AN32 causing drive IC402 pin 3, 7, 9 and
13 to drive the motor coil.
A 1-step rotation of this motor feeds 0.042mm of document.
3. Circuit Diagram
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