A process for producing a polymerized toner, which comprises steps of forming an aqueous dispersion comprising the colored polymer particles, subjecting the aqueous dispersion comprising the colored polymer particles to stripping treatment in the presence of a nonionic surfactant, dehydrating and washing the aqueous dispersion, wherein washing is carried out by using a washing water a temperature of which is controlled to lower than the cloud point of the nonionic surfactant, drying the wet colored polymer particles, and then getting the colored polymer particles.

 
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< Optical scanner configured so a principal ray of an incident beam from a light source to a deflector and a principal ray of a scanning beam from the deflector to a scanned surface travel on same side (or opposite sides) of an optical axis of an optical element(s) having transmissive surfaces both convex (or both concave) toward the deflector in sub-scanning section respectively, and image forming apparatus using the same

> Packaging detection and removal for an image forming device
~ 00477