Samsung MULTIXPRESS CLX-9251 Series Service Manual page 113

A3 color copier
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2. Product Specifications and Description
6) Block Diagram
The DCF board controls all functions for DCF Assy. It consists of CPU, Motor drive IC.
The Micom in the board receives the information from the paper size sensor, empty sensor, feed sensor etc. and
communicates with the copier main board through the UART.
When being received the print job command from the interface connector (CN7) through UART, DCF board drives the feed
motor and pick up motor to pick up a paper.
This board has 2 LEDs. The left LED is for checking 5V power supply and the right LED is checking the micom operation.
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