- Take out the PCDU and remove the OPC drum so that only the development unit remains. (Development Unit)
Take out the old developer from the supply port [A], and put it into the plastic bag that came with the new developer.
- When lifting the development unit, hold it with the development roller facing up and the development supply port facing down.
- When lifting the development unit, do not hold the frame. It may become bent or broken if load is applied to the frame.
- First, tilt the development unit to 60° and take out the old developer, and then tilt the unit to 90°. If you take out the old developer with the unit at 90° from the start, the developer will spread out and stack in the supply port.
- When the old developer cannot be removed smoothly, try the following procedure while doing step 3, in addition to the operation specified in step 3.
Tilt the development unit, and rotate the screw [B] clockwise using the development jig [A] to remove the old developer.
- When the developer is no longer ejected from the supply port, rotate the development roller [B] counterclockwise using the development jig [A].
- Repeat step 2 until the developer does not come out of the supply port.
Shake the development unit [A] up and down, left and right, and back and forth 5 times each. (The swing width is about 10 cm.)
- This improves the fluidity of the remaining developer, and makes it easier to remove.
- Repeat steps 3 and 2 (in that order) until developer does not come out of the supply port.
- Tilt the development unit [A] towards the development roller. The developer in the unit is gathered at the development roller side.
- Turn the development roller clockwise, and make sure that there is no adhesion of developer around the roller.
Keep removing the old developer until the developer adhered to the front development roller is about 1cm from the edge. When you cannot take out the old developer, try these steps in the following order: steps 5 -> 3 -> 2 -> 7 -> 8.
When there is a lot of remaining developer, tilt the development unit toward the development roller and shake it (in the same way as in step 5).