Chapter 55-2F-5-1T-5-25.1.3 Construction of the Control System 0006-5715iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /The machine's control system is constructed as follows:Item Notation Description[1] Original cover open/closedsensor (rear)PS501 photo interrupter: detects the state (open/closed) of thecopyboard cover; starts original size indication whenthe original cover is at 25 deg.[2] Reader controller PCB - controls the drive of the reader unit, and controls imageprocessing[3] Original sensor 3 PS506 helps identify original size (for all destinations)[4] Original sensor 4 PS507 helps identify original size (AB, Inch/AB)[5] Original sensor 5 PS508 helps identify original size (Inch/A)[6] Reader motor M501 pulse motor: controls the drive of the carriage[7] Reader heater* - prevents condensation on the copyboard glass[8] Original sensor 1 PS504 helps identify original size (AB, Inch/A, Inch/AB)[9] Original sensor 2 PS505 helps identify original size (AB, A, Inch/AB)[10] Contact image sensor (CIS) - uses LEDs for indirect exposure (LED +photoconducting body)[11] CIS HP sensor PS503 photo interrupter: detects CIS home position[12] Cupboard cover open/closedsensorPS502 ends original size identification with the copyboardcover at 5 deg.*Optional. (100/230-V model only).[6][4][5][3][9][8][2][1][12][7][7][11][10]
