Fuji Photo Film Company, Limited

Nec Corporation

Nippon Telegraph and Telephone Public Corporation

Yuji Inoue

Toshiya Kojima

Yasuhiko Kachi

Shin'ichi Koike

Haruhiko Tsuchiya

Motoi Suzuki

Yasuyuki Mochizuki

Tatsuhiro Ono

A winding core member of a winding core is divided along an axial direction into a first main body, a second main body and a third main body. Projections which are formed at the respective main bodies can fit into cam grooves of cams provided in the winding core member. For this reason, when the cams are rotated, inner peripheral walls of the cam grooves are engaged with the projections, and the main bodies are pulled in inwardly in a radial direction so as to approach each other, so that an outer diameter of the winding core is decreased. Therefore, after a sheet material is or sheet materials are wound in layers around an outer periphery of the winding core, the winding core can be pulled out from the sheet material(s) easily.

Sheet material winding core

A take-up device of an image forming sheet material, in which a plurality of sheet materials used for formation of images is sequentially wound, comprises: a core member formed in the shape of a cylinder and supported rotatably, the core member being provided such that the plurality of sheet materials can be wound around an outer periphery of the core member; an endless belt entrained across a plurality of rollers and moved in a circulating manner in a predetermined direction with an outer periphery of the endless belt contacting by pressure an outer periphery of the core member so as to rotate the core member and the endless belt nipping the sheet material together with the core member to sequentially wind the plurality of sheet materials around the core member; and tension maintaining means for maintaining tension of the endless belt substantially fixedly irrespective of a change of a winding diameter of the sheet material wound around the core member. Since the plurality of sheet materials are accumulated in such a manner as to be wound around the core member, even if the sheet materials having different sizes are included mixedly, these material be effectively accumulated.

Take-up device

An automatic processing apparatus is provided to sequentially dip photosensitive material into a plurality of processing solution tanks storing processing solution while conveying the photosensitive material to process the photosensitive material. Rollers are respectively provided between two adjacent tanks of the plurality of processing solution tanks so as to convey the photosensitive material to a downstream processing solution tank of the two adjacent tanks. A replenishing solution supply apparatus is provided to supply replenishing solution into the plurality of processing solution tanks, respectively. A diluting water supply apparatus is provided in the vicinity of rollers to respectively supply the plurality of processing solution tanks with diluting water for diluting the replenishing solution to a predetermined concentration. The rollers can be washed by the diluting water to be supplied to each of the plurality of processing solution tanks.

Automatic processing apparatus

A drive mechanism for conveying a photosensitive material in a processing tank filled with processing solution such as a developer, wherein a driving force from a driving source disposed outside the processing tank is transmitted to conveyor rollers located inside the processing tank through a pair of magnetic members. One of the magnetic members is located inside the processing tank and the other is located outside the processing tank so that the magnetic members face each other with the wall surface of the processing tank between them. Accordingly, the outside magnetic member is rotated by the driving force from the driving source. The rotation is transmitted to the inside magnetic member by means of a magnetic force, which rotates the conveyor rollers. The driving force is transmitted without a driving shaft or the like through the wall of the processing tank. Further, the processing tank can be made sufficiently airtight, thereby reducing degradation of the processing solution by oxidation.

Drive mechanism

In a communication system comprising a two-wire bus, bidirectional communication is carried out in a time division multiple access fashion through the two-wire bus between a plurality of terminal equipments (26) coupled to the two-wire bus and a central terminator (24) connected to one end of the two-wire bus which has the other end terminated by an active terminator (25). The central terminator transmits, to the two-wire bus, a down burst comprising a down synchronization signal and a down information signal. Each terminal equipment establishes synchronization with reference to the down synchronization signal and thereafter receives the down information signal. The active terminator sends, towards the central terminator, only an up synchronization signal produced with reference to the down synchronization signal extracted from the down burst. Each terminal equipment transmits an up information signal towards the central terminator in the form of an up burst with reference to the up synchronization signal. The up information signal may be sent back to the two-wire bus by the central terminator to carry out communication among the terminal equipments.

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Kanagawa, Japan

Yuji Inoue