Canon iR2030 Series Service Manual

Also see for imageRunner 2022: Media guide Brochure & specs Specifications

Contents

Canon iR2030 Series Service Manual Manual pdf 189 page image

Chapter 66-56.4 Driving and Controlling the High-Voltage System6.4.1 Outline 0017-4333iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018iThe voltage generated by superimposing the DC voltage over the AC voltage is applied to the primary charging roller and developing cylinder, and a positive ornegative DC voltage is applied to the transfer charging roller according to the instruction of the CPU on the DC controller PCB.The primary DC bias and developing DC bias are changed according to the image density information sent from the image processor PCB, thus adjusting the imagedensity.A negative DC voltage is applied to the electrostatic discharge needle and fixing film.F-6-66.5 Drum Unit6.5.1 Outline of the Drum Unit6.5.1.1 Outline 0017-4348iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018iMajor components of the drum unit are as follows:F-6-7[1] Photosensitive drum[2] Cleaning blade[3] Primary charging rollerASICCPUPrimary biascircuitFixing film biascircuitTransfer bias circuitRemaining tonerlevel detection circuitStatic eliminatorbias circuitJP3/JP4JP9/JP10JP7/JP8Developing biascircuitJP1/JP2High-voltage powersupply PCBDC controllerPCBJ214 J100Tr3JP5/JP6[3][1][2]