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IBM 4019 Technical Instructions
Turn the cartridge around and install the toner hopper guide pin. A small amount of rubber cement may be used to keep it in place. (See Photo 32)
Make sure that the toner hopper moves back and forth against the spring tension smoothly. Realign the hopper if necessary, then install the cloth gear assembly.
Install the drum alignment plate. While holding the drum shutter rod back, position the four holes in the plate onto the four black plastic rivet posts. (See Photo 34)
Install screws into holes previously drilled in Step 1. (See Photo 35) Make sure the plate is correctly aligned and held firmly in place. Turn the drum against the wiper blade while listening for noise and testing for undue torque or stiffness. Proper alignment and free rotation of the drum is essential to good cartridge performance.
Carefully reinstall the OPC shutter. (See Photo 36)
Clean the corona wire with the cartridge corona wire cleaner provided by sliding it in and out several times. (See Photo 37) The cartridge is now ready for post
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