Chapter 47Chapter 4 System Construction4.1 Basic Construction4.1.1 Outline 0010-4342The operation sequence of the duplex unit is controlled by the duplex controller PCB. An 8-bit microcomputer mounted on the duplex controller PCB controls theoperation sequence of the duplex unit and the serial communication with the DC controller PCB.The duplex controller PCB drives motors in response to various commands sent from the DC controller PCB. The DC controller PCB sends the duplex unit statusback to the printer. The duplex unit is powered by 24 VDC supplied from the power supply kit PCB and +5VDC and +3.3 VDC supplied from the DC controllerPCB.The duplex unit circuit configuration is shown below.F-4-1T-4-14.2 Product Specifications4.2.1 Specifications 0010-4339T-4-2M1001 Feed motor SR1002 Duplex paper sensor 1M1002 Reversal motor SR1003 Duplex paper sensor 2SL1001 Duplex flapper solenoidItem Description RemarksType Built in the host machinePaper supply method Switchback reversing methodCopy paper type 60g/m2 to 90g/m2Copy paper size A3, B4, A4, A4R, B5, B5R, A5R, 11X17, LGL, LTR,LTR-R, STMTRPower supply DC power supply from host machineWeight 2.5 kgDimensions 437.2 mm x 448 mm x 378.3 mm (W x D x H) Incl. reversal tray dimensionsDCcontrollerPCBJ1002J218M1001MJ275J1005M1002MJ276J1006SR1002J273J1003SL1001SR1003J274SLOptionalpowersupplyPCBJ1001J55