..BE..DE....FRGB..IT..LUNL........................S0223693EUROPEAN PATENT APPLICATIONA319891213EP86402471.619861104enenen79491019851104US19891213198950198705271987224 4G 03G 15/10 A 4G 03G 15/01 BdeEntwicklungseinrichtung für PlotterenPlotter toner stationfrUnité de développement pour traceurBenson, Inc.0054446064.105385 Ravendale DriveMountain View California 94039-7169USNieto, Robert L.3141 FitzpartickConcord California 94519USCamacho, Joseph5316 Escover LaneSan Jose California 95118USHardy, Douglas3076 HazelwoodSanta Clara California 95051USKamas, Peter1186 Mary AvenueSunnyvale California 94087USMonod, Jean-Yveset al00017441SCHLUMBERGER LIMITED 12 Place des Etats-Unis92124 Montrouge CedexFRBEDEFRGBITLUNL19891213198950

A toner station for an electrostatic printer includes a writing head (l0) and an integral toner application and removal station (28). The toner application station includes a longitudinally grooved roller (35) which rotates to contact a sheet of material to which toner is to be applied. Toner is applied to roller (35) by a sprayer (44). Adjacent toner roller (35) a low pressure chamber (40) is provided to remove excess toner from sheet (l5). The integral toner application and removal stages provide rigidity for the writing head (l0).