Chapter 1010-2The CPU on the main controlled PCB sends data (display data) to the control panel CPU PCB as instructed by the program.The data is sent through the control panel PCB to reach the color LCD.10.1.4 LCD Indication Processing 0006-6164iR2230 / / / iR3530 /The CPU on the main controlled PCB sends data (display data) to the control panel CPU PCB as instructed by the program.The data is sent through the control panel PCB to reach the LCD.10.1.5 Adjustment of the LCD Contact 0006-6161iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570NThe machine is equipped with a density adjustment volume (VR6801) on its keypad PCB for use by the user to adjust the contrast of the LCD screen.10.1.6 Adjustment of the LCD Contact 0006-6165iR2230 / / / iR3530 /The machine is equipped with a density adjustment volume (VR2) on its keypad PCB for use by the user to adjust the contrast of the LCD screen.10.1.7 Functions of the Control Panel CPU 0006-6162iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N- 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 0006-6166iR2230 / / / 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.10.2 Counters10.2.1 Overview 0006-5378iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /The machine is equipped with counters that keep track of printouts according to the type of printer unit. The counters are indicated in response to a press on theCheck key on the control panel. The following shows the functions of the counter as set at time of shipment from the factory.T-10-1large: large-sized paper (in feed direction, 364 mm or longer; count x 1)small: small-sized paper (in feed direction, 364 mm or less).total: all (C + P); count x 1.double-sided: in auto double-side copying count x 1; feed.Counter 1 Counter 2 Counter 3 Counter 4 Counter 5 Counter 6Japan*1 *** total 1 notindicated**notindicated**notindicated**notindicated**notindicated**101 000 000 000 000 000Japan*1 **** total 2 copy (total 2) total A (total2)notindicated**notindicated**notindicated**102 202 127 000 000 000120VTW *2 total 1 total (large) copy (total 1) copy (large) notindicated**notindicated**101 103 201 203 000 000120V UL *3 total 1 total (large) copy (total 1) copy (large) notindicated**notindicated**101 103 201 203 000 000230V *4 total 1 total (large) copy (total 1) copy (large) notindicated**notindicated**101 103 201 203 000 000240V EUR *5 total 1 total (large) total (small) scan (total 1) notindicated**notindicated**101 103 104 501 000 000240V CA *6 total 1 total (large) copy (total 1) copy (large) notindicated**notindicated**101 103 201 203 000 000