Canon iR4570 Series Service Manual

Also see for iR2270 Series: Product description Printer guide User guide Service manual Service manual

Contents

Canon iR4570 Series Service Manual Manual pdf 565 page image

Chapter 1010-3The machine is equipped with a density adjustment volume (VR2) on its keypad PCB for use by the user to adjustthe contrast of the LCD screen.10.1.7 Functions of the Control Panel CPU 0006-6162iR2270 / iR2870 / iR3570 / iR4570- Monitoring the Key InputsIt communicates the keypad and function key inputs to the CPU on the main controller PCB.- Monitoring the Touch Panel InputIt communicates the key inputs made on the touch panel to the CPU on the main controller PCB.- Controlling the Buzzer Sound- Controlling the Control Panel LEDMemo:the color LCD is driven by the main controller, and the control panel CPU PCB serves to relay the drive signals.10.1.8 Functions of the Control Panel CPU 0006-6166/ iR3530- Monitoring the Key InputsIt communicates the keypad and function key inputs to the CPU on the main controller PCB.- Monitoring the Touch Panel InputIt communicates the key inputs made on the touch panel to the CPU on the main controller PCB.- Controlling the Buzzer Sound- Controlling the Control Panel LEDMemo:the LCD is driven by the main controller, and the control panel CPU PCB serves to relay the drive signals.