744 JAN 2006Ver. 5.2DP-3510/3520/3530/4510/4520/4530/6010/6020/603011.3.2.3.4. Stapler UnitThe Staple/Fold Motor (M7) is used to perform stapling operation. This motor rotates the Cam one turn forstapling. The home position of this cam is detected by the Staple Home Position Sensor (PI19).The Staple/Fold Motor is rotated in the forward or reverse direction under the control of the Micro Computer(IC13) on the Finisher Controller PCB.When the Staple Home Position Sensor is OFF, the Finisher Controller PCB rotates the Staple/Fold Motor inthe forward direction until the sensor turns ON, allowing the Staple Cam to the original position.The Staple Empty Sensor (PI20) is used to detect presence/absence of a staple cartridge in the Machineand presence/absence of staples in the Cartridge.The Staple Top Position Sensor (PI21) is used to determine whether staples are pushed up to the top of theStaple Cartridge.The Finisher Controller circuit does not drive the Staple/Fold Motor (M7) unless the staple safety switch(MS3) is ON (the Swing Guide is closed). This assures safety in case where you happen to put your fingerin the stapler.Fig. 2-028Fig. 2-029Finisher Controller PCBStaple home position detect signalStaple empty detect signalStaple top position detect signalStaple/hold motor drive signalM7
