Abstract:
A photoconductive cartridge removably mounted on a photographic recording apparatus and including a photoconductive body, a casing having an opening for exposure of the photoconductive body to an outside of the casing, and a shutter having a closed position in which the opening is closed by the shutter and an open position in which the opening is open. The photoconductive cartridge further includes a locking device having a first engaging member movable with the shutter, a second engaging member having a first position in which the second engaging member engages the first engaging member to thereby prevent a movement of the first engaging member and a movement of the shutter from the closed position to the open position, and a second position in which the second engaging member is released from the first engaging member, and a biasing device for biasing the second engaging member toward the first position.
Abstract:
The present invention provides a display front panel having an anti-reflection layer characterized in that the anti-reflection layer comprises a first layer and a second layer having a smaller optical refractive index value than that of the first layer which are laminated to at least one side of the surfaces of a base plate of a display front panel in a way that the first layer faces the surface(s) of the base plate and the second layer is laminated on the first layer, wherein the first layer is a cured film made of a composition containing (A) a polymerizable compound or an oligomer thereof having at least two unsaturated double bonds, (B) an organo-silicon compound or an oligomer thereof and (C) particles of metal oxide, and the second layer is a cured film made of an organo-silicon compound.
Abstract:
An electrophotographic image forming system wherein a visible image is generated on a recording medium in response to a print start command, and the visible image is fixed on the recording medium by heat generated by a heater. The temperature of the heater is controlled by a controller such that the detected temperature of the heater is held at an image fixing temperature when the system is in a printing operation, at a high stand-by level lower than the image fixing level when the system is in a first stand-by state without the print start command being received within a predetermined time period even after a last printing operation, and at a low stand-by level lower than the high stand-by level when the system is in a second stand-by state without the print start command being received even after the predetermined time has passed.
Abstract:
A photographic recording apparatus is provided having a housing body, and a process cartridge unit including a photoconductive drum and a developing device and which is removably mounted on the housing body. The cartridge unit includes a first and a second frame which are pivotable about a rotation axis of the drum relative to each other, and a biasing member for biasing the two frames to thereby hold the frames in a first relative angular position. The housing body includes a portion for holding the cartridge unit such that the two frames are held in a second relative angular position, which is established by pivoting the two frames from the first relative angular position against a biasing action of the biasing member. The first and second frames each having holes or openings that are initially misaligned, cooperate in an overlapping fashion to provide at least one opening through which a portion of the drum is exposed outside the frames, when the frames are placed in the second relative angular position. Each opening is closed when the frames are placed in the first relative angular position.
Abstract:
An electrophotographic image forming system wherein a visible image is generated by an image forming device in response to a print start command and is fixed on the medium by heat generated by a heater. The temperature of the heater is controlled in a temperature-control-on mode and not controlled in a temperature-control-off mode. A controller is provided for controlling the heating device in the temperature-control-on mode such that the temperature is held at a first level when the apparatus is in a stand-by mode before the print start command is received, and at a second level higher than the first level when the apparatus is in a printing mode with the image forming device being operated. The controller changes the temperature-control-off mode to the temperature-control-on mode to control the temperature to be held at the second level and establish the printing mode without establishing the stand-by mode, when the print start command is received in the temperature-control-off mode.
Abstract:
An emulsifying epoxy resin composition having excellent emulsifiability and storage stability, which comprises a specific epoxy resin (I), an emulsifiable epoxy compound (II) prepared by reacting an urethane compound (II-1), prepared by the reaction of a polyalkylene polyether polyol compound (II-1-1) having a number average molecular weight of 200 to 12,000 and an ethylene oxide content of 80% by weight or above with an excess amount of a polyisocyanate compound (II-1-2), with a specific epoxy compound (II-2) and an alkylphenol ethoxylate (II-3) having a number average molecular weight of 300 to 5,000 at a specific ratio, and water (III). A curable composition having a high cure rate and the cured product obtained there from having excellent film strength, water resistance and so on, which comprises the above-described emulsifiable epoxy resin composition and an active organic amino compound (IV) is also within the scope of the present invention.
Abstract:
An electrophotographic apparatus includes a control device for controlling a charger to start a high voltage supply operation so that a scanner unit and a photosensitive drum are simultaneously allowed to carry out a normal exposure operation and a normal photosensitizing operation, respectively. Through this control of the high voltage supply, a first print time can be shortened.
Abstract:
The present invention provides a filter for an image display device comprising a resin layer having a thickness of about 1 mm or less containing therein (A) at least one compound selected from a compound of the following formula (1) and the following formula (2): wherein R1 to R9, Z1 and Z2 each independently represent an appropriate substituent, L1 to L4 each independently represent an aromatic ring optionally having a substituent, and X− represents a counter anion; and (B) a compound having an absorption peak of light in the wavelength range from about 780 nm to about 1200 nm. This filter for an image display device is excellent in contrast and color reproducibility of an image and also in durability, and is suitably used for a plasma display panel.
Abstract:
In an electro-photographic device for printing photographic images by fixing heated toner on printing paper. The electro-photographic device has a cover which is opened by an operator during maintenance and error recovery operations. Since the device has a paper sending unit provided on both the main body and the cover of the device, the paper sending unit has to be driven to recover synchronization after the operation is completed. On the other hand, the device cuts off power to the fixation unit for safety reasons during the operation which causes the fixation unit to cool. The present device is characterized in that the device starts the recovery procedure after the temperature of the fixation unit reaches an optimal point above the melting point of the toner so that the fixation unit is not damaged by solid toner.
Abstract:
In a printer having a manual sheet feed mechanism and an automatic sheet feed mechanism, when feed rollers of the manual paper feed mechanism are driven, a counter starts to count. At the time when the printing operation is completed, a CPU retrieves a predetermined value corresponding to a sheet length from a table stored in a ROM. The predetermined value represents the time necessary for the printing operation to be completed, with a tolerance. The CPU does not feed the next print sheet until the counter counts up to the predetermined value.