Canon i-SENSYS LBP5300 Series Service Manual

Also see for i-SENSYS LBP5300 Series: User guide User guide

Contents

Chapter 22-17F-2-23The cartridges used in this printer consists of photosensitive drum, primary charging roller, developing roller, and etc.Each cartridge has the following functions.- Memory tag control- Cartridge presence detection- Developing roller engagement/disengagement control2.4.3.2 Memory tag 0013-7481/ i-SENSYS LBP5360 / i-SENSYS LBP5300The memory tag is a nonvolatile memory built in the cartridge. The usage condition of the cartridge is monitored and memorized by reading the data stored in thememory tag and writing (update) data to the memory tag.When the DC controller encounters the following statuses, it determines the memory tag communication error and notifies the video conrtoller of "Warning: car-tridge memory abnormality".- Access abnormality: When reading/writing failed- Data abnormality: When wrong data is read/writtenF-2-242.4.3.3 Cartridge presence detection 0013-7495/ i-SENSYS LBP5360 / i-SENSYS LBP5300This is to detect the presence of a cartridge.When the power is turned ON or the door is closed, the DC controller performs this detection as follows.The DC controller detects the cartridge presence by monitoring the difference of the drive motor operation.When the DC controller determines the cartridge absence in the procedure , it stops the printer engine and notifies the video controller of "cartridge absence".2.4.3.4 Developing roller engagement/disengagement control 0013-7499/ i-SENSYS LBP5360 / i-SENSYS LBP5300The purpose of this control is to engage the developing roller with the photosensitive drum only during the developing operation.The developing roller engagement/disengagement is controlled according to changing the direction of the developing estrangement cam. The DC controller drivesthe developing estrangement solenoid during the fixing motor (M1) rotates clockwise in order to change the direction.This raises or lowers the rear part of cartridge and the developing roller is engaged with or disengaged from the photosensitive drum with a principle of leverage.The developing estrangement sensor detects the direction of the developing estrangement cam, and the DC controller determines the developing roller is engagedor disengaged.MSLToner level sensor (Light receiver)Toner level sensor (Light emitter)DC controller PCBFIXING MOTOR CONTROL signalDRUM MOTORDRIVE signalToner level PCBLED DRIVE signalTONER LEVEL signalDeveloping alienation camCartridge dataDEVELOPING ALIENATION signalDeveloping alienation sensorDrum motorFixing motorMemory tag Photosensitive drumWaste toner containerPrimary charging rollerToner containerDeveloping rollerDEVELOPING ALIENATIONSOLENOID DRIVE signalDeveloping alienation solenoidM1memory tagCartridgeDC controller PCB