Canon DADF-M1 Service Manual

Also see for DADF-M1: Service manual General Timing Chart/General Circuit Diagram Portable manual Service manual Service bulletin

Contents

Canon DADF-M1 Service Manual Manual pdf 48 page image

Chapter 22-26F-2-282.4.4 Controlling the Pickup Motor (M1) 0002-9497The following is a diagram of the circuit used to control the pickup motor (M1). The pickup motor is a 4-phase stepping motor, and the circuit serves the followingfunctions:- turning on/off the motor- controlling the rotation direction of the motor- controlling the rotation speed of the motorF-2-29IC9 on the ADF driver PCB receives print data (command) on printing mode from the host machine (magnification, operation mode, timing); in response, it gen-erates drive pulses to drive the pickup motor.The pickup motor (M1) is a stepping motor, and its direction and speed of rotation are varied by changing the order and the frequency of drive pulses (A, A*, B, B*).2.4.5 Controlling the Lock Motor (M4) 0003-6080The following is a diagram of the circuit used to control the lock motor, and the circuit has the following function:- turning on/off the motor- controlling the speed of motor rotationF-2-30IC9 on the ADF driver PCB receives data (command) from the host machine on printing mode (magnification, operation mode, timing); in response, it generatesdrive pulses to drive the lock motor.The lock motor (M4) is a stepping motor, and the direction and speed of its rotation are changed by changing the order and frequency of drive pulses (A, A*, B, B*).Start key ONOriginal placementsensor (P15)Pickup/feed ReadingPickup clutch(CL1)Separation rearsensor (PI7)Read sensor(PI8)Pickup motor(M1)Feed motor(M2)Release motor(M4)Registrationsensor (PI1):Motor reverse rotationImage leading edgesignalArchingReverse rotation Normal rotationOriginal placement+24VAA*BB*M1J11MOT-B*MOT-B 341562IC9CPUMOT-A*MOT-AMOT-CUTMOT-REF1MOT-REF2+5VREFADF driver PCBIC8MotorDriverIC2MotorDriverAA*BB*M4J9MOT-AMOT-B3654MOT-REFIC9CPUMOT-CUTADF driver PCBMOT-REF+5V3REF