MX-6240N, MX-7040N (serv.man32). Section 13 Operational Descriptions - Updated November 2012 - Sharp Copying Equipment Service Manual (repair manual). Page 2

MX-7040N  OPERATIONAL DESCRIPTIONS  13 – 2

The operation panel unit is composed of the LCD unit, the LVDS PWB, the USB I/F PWB, and the KEY PWB. It displays the machine operation.
It is provided with the USB I/F which is used for the firmware update, USB print, and Scan to USB.

In addition, the USB I/F line is provided inside the operation panel to connect with the keyboard and the IC card reader.

A document size is detected by the document size detection PWB (light emitting) and the document size detection PWB (light receiving).

The detection timing of document size is determined according to the document size detection trigger sensor signal.

HM_KEY

Home Screen key

Switch for home screen

OCSW

Document size detection trigger sensor

Generates the document size detection trigger signal.

PWRSW

Operation panel power switch

Turns ON/OFF the power on the secondary side.

WU_KEY

Power Save key

Switch for power save

1

LVDS PWB

Converts the display data signal to the LCD display signal. / Controls the touch panel.

2

Document size detection PWB (Light emitting)

Drives the LED for the document size detection.

3

Document size detection PWB (Light receiving)

Outputs the document size detection signal.

4

USB I/F PWB

USB Interface

5

KEY PWB

Outputs the key operation signal.

6

Power lamp PWB

Power lamp display

7

Touch panel

Touch panel

8

LCD

LCD