2. Product Specifications and Description
5) Block Diagram
The HCF board controls all functions for HCF Assy. It consists of CPU, Motor drive IC.
The Micom in the board receives the information from the Pickup No-paper Sensor, Pickup Level Sensor, Prefeed sensor
etc. and communicates with the copier main board through the UART.
When being received the print job command from the interface connector (CN301) through UART, HCF board drives the
feed motor and pick up motor to pick up a paper.
This board has 2 LEDs. The lower LED is for checking 3.3V power supply and the upper LED is checking the micom
operation.
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