Duplex unit pick-up operation After the side registration adjustment is completed, the duplex driver sends the refed paper presence status to the printer. Once the status is reviewed by the printer, it sends the duplex unit pick-up command to the duplex driver. The duplex driver activates the duplex feed motor (M3101) and feeds the paper. When the paper is detected by the registration paper sensor (PS2), the duplex driver deactivates M3101, stopping the paper feed process. The duplex driver then activates M3101 to resume feeding once it receives the refeed command. Once the media is in position, the duplex driver will deactivate M3101 and stop the duplex feed roller.
After the second side of paper is printed, the paper is fed to the face-down delivery bin. C7085-90921 Chapter 5 Theory of operation 131