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Canon FAX-L1000 User Manual

Page 207

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FAX-L1000 Chapter 3: Technical Reference

d) OPCNT board

Buttons detection and LED drive function

The control IC on the OPCNT board detects the buttons operation status, and drives the
LCD and LEDs.

Display

The control IC in the LCD module controls the 20-column

×

2-line LCD according to the

display signals from the SCNT board.

Serial communication

Serial communication with the SCNT board is used to send buttons, speaker volume
switch, document status, etc., and to receive display, LED drive data, etc..

Sensors

The signals detected by the one touch dial cover sensors are sent to the SCNT board via
the control IC on the OPCNT board.

e) Sensor board

Sensors

The document sensor, document width sensor, and document feed sensor are attached to
the paper sensor board. The signals detected by these sensors are sent to the SCNT board.