HP LASERJET 300 - Manual (Page 40)

3. Loosen the two captive thumb screws on the back of the MFP.
Figure 1-45 Loosening the screws
4. Grasp the screws and pull the formatter board out of the MFP. Place it on a flat, non-conductive
surface.
Figure 1-46 Removing the formatter
5. If you are replacing an existing fax accessory, pull up to remove it.
Figure 1-47 Replacing an existing fax accessory
32 Chapter 1 Setup ENWW