摘要:
A carriage has a support shaft for supporting a plurality of film rolls and can be closed by a light shield cover to place the film rolls in a light-shielded state. A film roll storage mechanism is disposed in a dark room and has a shank for receiving the film rolls from the carriage. The film roll storage mechanism can transfer the film rolls one at a time from the shank onto a film unwinding shaft. A positioning mechanism positions the support shaft and the shank coaxially with each other and locks the carriage with respect to the film roll storage mechanism.
摘要:
A process for producing packaged products from a film roll includes the steps of detecting whether an elongate film is defective or not, detecting whether a spool is defective or not, detecting whether an assembled cartridge is defective or not, and detecting whether a case is defective or not. Various defective products detected in these steps are removed without being fed to subsequent steps. By thus detecting various defects in the process for producing packaged products from a film roll, high-quality packaged products can efficiently be manufactured.
摘要:
An apparatus for processing and packaging a photographic film has a film supply unit for unreeling and cutting off a film roll of an elongate photographic film, and supplying a sized film, a film winding unit for winding the sized film around a spool thereby to produce a roll, a cartridge production unit for crimping a cap on an end of a rounded barrel plate thereby to produce a one-end-open cartridge, an assembling unit for inserting the roll into the one-end-open cartridge and thereafter crimping a cap on an opposite open end of the one-end-open cartridge thereby to produce a film-contained cartridge, and an encasing unit for placing the film-contained cartridge into a case and attaching a case cap to an open end of the case thereby to produce a packaged product. The film supply unit, the film winding unit, and the assembling unit are accommodated altogether in a dark chamber. The apparatus is relatively simple in overall arrangement, and allow various types of operation to be carried out easily and efficiently.
摘要:
An electrophotographic dry toner comprising toner particles having externally added thereto fine particles of an inorganic compound having been surface treated with an amphoteric surface active agent. The toner is excellent in fluidity, anti-caking properties, charging properties, and environmental stability and provides excellent images free from defects such as black spots.
摘要:
An electrostatic charge developing toner composition comprising (i) toner particles containing a low-molecular weight polypropylene wax and/or a low-molecular weight polyethylene wax, having a volume average particle size of from 4 to 9 .mu.m, and an exposed amount (X% by weight) of the wax on the surface of the toner in the range of 40.ltoreq.X.ltoreq.65, and (ii) abrasive fine particles having an average particle size of from 0.5 to 5.5 .mu.m, and an image-forming process using the toner.By the toner composition, the occurrence of filming with the wax in the toner particles is prevented and images excellent in the development stability with the passage of time can be formed.
摘要:
A toner composition for thermal fixing is disclosed, comprising a colorant, an external additive and a binder resin that contains a thermoplastic resin having a glass transition point of from 20.degree. C. to less than 50.degree. C. and a polyolefin polymer having an average molecular weight of 800 or more, the polyolefin polymer being present in an amount of from 5 wt % to less than 50 wt % of the total binder resin.
摘要:
A spool around which a roll film is to be wound is carried by a pallet having a spool holding shaft which holds the spool and rotates the spool under a force transmitted thereto from outside the pallet and a pair of film pinch arms which pinch the outer end portion of the roll film wound around the spool and is moved from station to station in a film cassette assembly line.
摘要:
A process for producing a developer carrier is disclosed, which comprises heating a carrier composition containing a resin, magnetic particles and a compound having a lower critical surface energy than the resin, to produce a carrier particle having a higher surface concentration of the compound having a lower critical surface energy. A developer carrier having an average particle size of at least about 50 .mu.m and containing a fluorine-containing compound and fine magnetic particles dispersed in a binder resin is also disclosed. The developer carriers according to the invention when used in magnetic brush development provide superior charge generation, extended life and improved image reproduction.
摘要:
When any of facilities of a film producing and packaging system suffers a failure, a film processing controller shuts off the film producing and packaging system. The operator repairs a failing facility and manually discharges a length of an elongate film which may possibly be defective. After the failing facility is repaired, the film processing controller is restarted to operate the film producing and packaging system, which then automatically discharges a length of the elongate film corresponding to a preset number of sized films. It is possible to easily and quickly discard a portion of the elongate film which has been made defective by the facility failure.
摘要:
A cartridge positioning and holding mechanism has a fixed guide for positioning a single-open-ended cartridge when the single-open-ended cartridge is inserted in an axial direction thereof with a cap positioned ahead, and a movable chuck openable and closable for forming and holding the single-open-ended cartridge after a film coil is inserted into the single-open-ended cartridge in an axial direction of the spool of the film coil. The film coil can be inserted into the single-open-ended cartridge highly accurately and efficiently with a simple and small arrangement.