Fusing stage Step 6 : The DC negative bias applied to the fusing film strengthens the holding force of the toner on the paper and prevents the toner from scattering. The product uses an on-demand fuser method. The toner image is permanently affixed to the paper by heat and pressure. Figure 1-21 Fusing Fuser heater Fuser film Toner Media Pressure roller Cleaning stage Step 7 : The cleaning blade scrapes the residual toner off of the photosensitive drum and deposits it into the waste toner case. Figure 1-22 Drum cleaning Cleaning blade Waste toner container Photosensitive drum ENWW Image-formation system 27