An exit blade is arranged on a downstream side of a transfer nip formed between a photosensitive element and a primary transfer roller, with an intermediate transfer belt being put therebetween, and brought into contact with an internal surface of the intermediate transfer belt. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. The plug can extend away from the handle into the plurality of bristles to form a space between the bristles. The interpolator further includes a linear interpolation filter, associated with the multiple order interpolation filter, that develops a plurality of samples within the sample range. The filter film is disposed on the optical path of the plurality of light-emitting diodes for filtering light of predetermined wavelength ranges.