摘要:
The invention relates to a developer cartridge for exchanging developers in an apparatus which develops an electrostatic latent image, and an image forming apparatus using the developer cartridge. The developer cartridge has a first storage room for unused developer, a second storage room under the first room for storing used developer, openings in the first and second rooms and shutters provided therewith, together with a paddling mechanism in the first storage room for moving unused developer. The image forming apparatus has an endless latent carrier, a mechanism for forming an electrostatic latent image on the carrier and a mechanism for developing the latent image on the carrier. The developer cartridge is detachable positioned to the developing mechanism and a mechanism is provided for driving the shutters of the developer cartridge for exchanging used developer with unused developer.
摘要:
Disclosed are a developer cartridge designed to ensure exchange of developers and toner supplement, and an image forming apparatus using this cartridge. This developer cartridge includes a cylindrical body whose rotational axis extends in a direction perpendicular to the developer carrying direction of the developing unit, a first developer storage room, provided at one portion of the cylindrical body, for storing an unused developer, a second developer storage room, provided at the other portion of the cylindrical body, for storing a supplemental toner, openings respectively formed in the first and second developer storage rooms of the cylindrical body, and a case with a cylinder shape for rotatably retaining the cylindrical body, the case having a pair of injection ports respectively provided in association with the opening of the first developer storage room and the opening of the second developer storage room. The image forming apparatus includes an endless latent carrier, structure for forming an electrostatic latent image on the endless latent carrier, developing mechanism for developing the electrostatic latent image on the endless latent carrier, a developer cartridge detachably attached to the developing mechanism for exchanging developers and for toner supplement, and having the same components as the above-described cartridge, and drive mechanism for driving the cylindrical body of the attached developer cartridge, for exchanging a used developer with an unused developer and for toner supplement.
摘要:
In an image-forming apparatus, in which an electrostatic latent image on a photoconductive drum is developed by a toner accommodated in a container, a periodical exchange of carrier in a container is necessary. A method thereof includes steps of fitting a cartridge to the container, discharging all of an old mixture of toner and carrier from the container to the lower chamber, transferring fresh carrier from the carrier compartment into the container, and further, transferring fresh toner from the toner compartment into the container until a predetermined initial color density of the mixture is obtained.
摘要:
A toner image fixing device includes a heat roller, and a backup roller engaged with the heat roller to form a nip therebetween. A paper carrying a toner image is passed through the nip whereby the toner image is thermally fused and fixed on the paper. The heat roller, which is stained by a part of the fused toner during the fixing process, should be cleaned before a toner image is fixed on a successive paper without staining. To this end, a cleaning roller made of a felt material is pressed against the heat roller so as to be rotated together with the heat roller by a frictional force acting therebetween. The cleaning roller must be periodically replaced. The fixing device is constituted such that the replacement of the cleaning roller can be easily and quickly carried out.
摘要:
A plurality of electrostatic recording units are arranged in series along a path for moving a recording sheet of paper, and charged toner images having different colors are formed on the sheet of paper travelled through the path. A paper feeder unit is arranged beneath a paper introduction side of the paper moving path. The sheet of paper carrying the toner image formed thereon is ejected from a paper ejection side of the paper moving path, and is sent to a fixer in which the toner image is fixed on the sheet of paper. The sheet of paper carrying the toner image fixed thereon is sent to a paper receiver tray positioned above the fixer.
摘要:
An image forming device that can surely prevent a flutter of a sheet-like medium in the feeding portion even when there is a difference in velocity between the conveying belt and the front conveying system at the time of feeding a sheet-like medium onto the conveying belt, thereby obtaining a high-quality image. The image forming device includes a pressure roller mounted in an idle mode on the conveying belt and near to the portion where the transfer paper is fed from the conveying system, the transfer paper being transferred from the conveying system onto the conveying belt while being sandwiched between the pressure roller and the conveying belt. The image forming device is applicable to printers of electro-photographic system, electro-static recording system, or the like.
摘要:
Heterocyclic compounds represented by the formula I and anti-malignant-tumor agents containing the heterocyclic compounds as effective components: wherein X represents nitrogen atom or CH; Y represents C1-C6 alkyl; R1 represents morpholino (which may be substituted with one to four C1-C6 alkyl); and R2 and R3 each represent hydrogen atom or C1-C6 alkyl.
摘要翻译:由式I表示的杂环化合物和含有杂环化合物的抗恶性肿瘤剂作为有效成分:其中X表示氮原子或CH; Y表示C 1 -C 6烷基; R 1表示吗啉代(其可以被一至四个C 1 -C 6烷基取代); R 2和R 3各自表示氢原子或C 1 -C 6烷基。
摘要:
In a connector for memory card, it is objected to stabilize contact of detection switch for detecting insertion of a memory card, and to prevent breakage of the memory card due to bounce-out when it is taken out. The detection switch is held on a contact block with contacts which are to be contacted with terminals of the memory card, and comprised of a fixed contact plate and a movable spring piece. A groove having substantially V-shape is formed on a contacting portion of the movable spring piece so as to contact with the fixed contact plate at two points. Furthermore, elastic protrusions that can fit to recessed portions for locking formed on the memory card just before the slider holding the memory card reaches to an initial position is formed on a top plate of the housing, so that the bounce-out of the memory card is prevented.
摘要:
A continuous feed printer prints images on a continuous paper sheet with conveyance holes perforated at regular intervals along the edges thereof and conveyed by a pinless transportation mechanism. The continuous feed printer includes: a conveyance hole detecting device that detects the conveyance holes on the sheet; a comparison device that compares a measured conveyance length of the sheet, which is a length of the sheet conveyed from the time when the conveyance hole detection has been started to the time when a predetermined number of conveyance holes has been detected, with a calculated conveyance length that is calculated from a number of the detected conveyance holes and the intervals between the conveyance holes; and an adjusting device that adjusts a conveyance velocity of the sheet based on the result of comparison of the measured conveyance length with the calculated conveyance length to make them equal to each other.