Chapter 44-34.1.4 Major Components (iR2018i/iR2018) 0017-6934iR2018 / iR2018iMajor components of the original exposure system are as follows:F-4-2T-4-44.1.5 Control System Configuration (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2022) 0017-5569iR2022i / iR2025 / iR2030 / iR2022The control system configuration of the original exposure system is shown below.[7] Reader heater*1 - Prevents condensation inside the original glass.[8] Original sensor 1 SR404 Detects the original size (AB, INCH/A, INCH/AB).[9] Original sensor 2 SR405 Detects the original size (AB, A, INCH/AB)[10] Contact image sensor (CIS) - Uses LEDs for indirect exposure (LED +Photoconductor)[11] CISHP sensor SR401 Photo interrupter: Detects the CIS position.[12] Copyboard cover open/closesensorSR403 Finishes detecting the original size when thecopyboard cover angle is 5 deg.*1 Service parts settingComponent No. Function/Specification[1] Copyboard cover open/closesensor (Rear: SR402)SR402 Photo interrupter: Detects the copyboard cover open/close status. Starts detecting the original size when thecopyboard cover angle is 30 deg.[2] Reader controller PCB - Controls drive of the reader unit and image processing.[3] Reader motor M401 Pulse motor: Controls drive of the carriage.[4] Reader heater*1 - Prevents condensation inside the original glass.[5] Contact image sensor (CIS) - Uses LEDs for indirect exposure (LED +Photoconductor)[6] CISHP sensor SR401 Photo interrupter: Detects the CIS position.[7] Copyboard cover open/closesensorSR403 Finishes detecting the original size when thecopyboard cover angle is 5 deg.*1 Service parts settingComponent No. Function/Specification[3][2][1][7][4][4][6][5]