A paper guide which does not make stripes on an image on a printing paper. The paper guide of an electrophotographic image forming apparatus includes a guiding member for guiding the printing paper into a fusing unit, a plurality of guiding ribs formed on the guiding member to prevent direct contact of the printing paper with the guiding member, and a blocking bar formed on a leading end near the fusing unit of the guiding member in order that the spaces between the plurality of guiding ribs are blocked from the fusing unit. The blocking bar is formed at the same height as the guiding ribs and has a triangular section with a slope steeper than the section of the guiding ribs.

Paper guide and electrophotographic forming apparatus having the same

A helical web or film path processing rack for use in a processing device comprising a tray having a plurality of semicylindrical cavities arranged in parallel side-by-side relation. The tray is in vertical register with a shaft, and each cavity has planar sides lying in parallel planes transverse to a plane passing through the axis of the shaft and through the centers of the openings in the upper surface of the tray defining the cavities. The tray supports a plurality of film spools extending into the cavities.

Helical web path processing rack

Fluessigkeitsentwicklervorrichtung fuer eine kopiermaschine

Means for developing Xerographic images in which a developer applicator (21) is arranged to progressively apply a liquid developer to a latent electrostatic image on an image-bearing surface on a support member (3) and the surface is progressively pressed to a smooth conductive surface (19) to express excess developer liquid from the image-bearing surface to provide a relatively dry member containing the relatively dry developed image, a corona charging system (7) is included and also means (40-41-42) for multistage developement of color images.

Means for developing electrophotographic images

A toner system for an electrophotographic copying machine comprising a developing trough and a separate store receptacle for toner liquid which can be detachably connected with the trough by connecting means defining separate forward and return flow passages for circulating toner liquid from the receptacle through the trough and back into the receptacle, said connecting means extending downwardly from the trough to be positioned in the store receptacle through a single opening in the top wall thereof and incorporating a pump for pumping toner liquid through said forward flow passage. The toner system can be utilized in a copying machine in which the original to be reproduced and a copy sheet traverses the machine downwardly in synchronism from spaced substantially vertical initial positions in which they are held by gravity along substantially vertical travelling paths, the toner system being arranged below the exposing means in the copy sheet travelling path in the lower portion of the machine casing in which a supporting member is provided for positioning the separate store receptacle in an operative communication with the trough by simple manipulations conducted outside the machine casing.

Toner system for an electrophotographic copying machine and a copying machine utilizing this toner system

A liquid developer tray is arranged to be supported to receive copy sheets to be developed from feed rollers and has a removable insert cooperating to guide the sheets through developer in the tray and to take-off and squeeze rollers. The guide insert also limits the volume of toner in the tray, improves circulation thereof and reduces the toner surface exposed to evaporation. Cooperating with the insert guide structure are means for positioning and retaining the tray properly oriented with respect to the rollers but enabling ready sliding of the support for the tray assembly into and out of position in a photocopy machine.

Photodevelopment apparatus including tray assembly and retaining means therefor

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Photodevelopment apparatus including tray assembly and retaining means therefor