Control Panel; Outline - Canon GP605 Service Manual

I . CONTROL PANEL
A.

Outline

The copier's control panel consists of the PCBs shown in Figure 9-101 and a liquid crystal
display (LCD) panel capable of showing images using 320 × 240 dots.
• Monitoring key inputs (keypad,
function keys)
• Controlling buzzer sound
• Turning on/off control panel
LEDs
• Controls data communication
• Supplies data (display data)
Related Service Mode
COPIER>FUNCTION>PANEL>
LCD-CHK
COPIER>FUNCTION>PANEL>
LED-CHK
COPIER>FUNCTION>PANEL>
LED-OFF
COPIER>FUNCTION>PANEL>
KEY-CHK
COPIER>FUNCTION>PANEL>
TOUCHCHK
COPYRIGHT © 1999 CANON INC.
CHAPTER 9 EXTERNALS/AUXILIARY MECHANISMS

Control panel

inverter PCB
Control panel CPU PCB
System
motherboard
CPU
CPU
Figure 9-101 Functional Construction
Checks the LCD for missing dots.
Starts a check on the control panel LEDs (activation).
Ends a check on the control panel LEDs (de-activation).
Starts a check on key inputs.
Adjusts coordinates of the touch panel.
CANON GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Control
LCD
panel PCB
PCB
(keys and LEDs)
(LCD)
CPU
CPU
DC controller
PCB
MFC
PCB
Image
processor
PCB
Control panel
Control panel
power switch
PCB
LCD contrast
adjustment
PCB
Adjusts the LCD contrast.
9-1