Brother International MFC-P2000 Service Manual - Page 29
Document Scanner Circuit, Scanner Panel I/F, is a serial interface.
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Page 29 highlights
1.3.10 Document Scanner Circuit The image processing LSI, SANYO LC82103 transfers the analog signal from the CIS into a digital signal. The gate array, NEC PD65646 stores the digital signal in DRAM with DMA (direct memory access). The document scanner circuit also provides the motor drive pulse generating circuit, PWM (pulse width modulation) circuit for CIS current adjustment and general purpose I/O. Fig. 2-12 1.3.11 Scanner Panel I/F The scanner panel interface is a serial interface. The front sensor and rear sensor are directly connected to the NEC PD65646. Fig. 2-13 II-10
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II-10
1.3.10
Document Scanner Circuit
The image processing LSI, SANYO LC82103 transfers the analog signal from the CIS
into a digital signal.
The gate array, NEC
PD65646 stores the digital signal in DRAM
with DMA (direct memory access).
The
document scanner circuit
also provides the motor drive pulse generating circuit,
PWM (pulse width modulation) circuit for CIS current adjustment and general purpose
I/O.
Fig. 2-12
1.3.11
Scanner Panel I/F
The
scanner panel interface
is a serial interface.
The front sensor and rear sensor are
directly connected to the NEC
PD65646.
Fig. 2-13