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2. ROM (IC2)
Contains all of the program instructions for unit operations.
3. Static RAM (IC3)
This memory is used mainly for the parameter working storage
area.
4. MODEM (Incruded in IC1)
Modem for the FAX.
5. Read Section
Contact Image Sensor (CIS) to read transmitting documents.
6. Thermal Head
Contains heating elements for dot matrix image printing.
7. Motor driver (IC7)
Drives the motor.
8. Reset circuit (IC4)
Provides a reset pulse to each of the major ICs.
9. Analog board
Composed of an ITS circuit and NCU circuit.
10. Sensor Section
Composed of a document sensor, recording paper sensor, motor
position sensors, read position sensor.
11. Power supply switching board section
Supplies +5V and +24V to the unit.
12. CODEC (IC5)
A/D and D/A converter.
5.2.1. General Block Diagram
5.3. CONTROL SECTION
5.3.1. BLOCK DIAGRAM
5.3.2. ASIC (IC1)
This custom IC is used for general FAX operations.
1. CPU
This model uses a Z80 equivalent CPU operating at 8MHz. / Many
of the peripheral functions are handled by custom designed LSIS.
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