摘要:
A plurality of image input devices and a plurality of image output devices are connected to a system bus and an image bus of an image processing system through an external device control unit. In response to an instruction supplied, the image input devices and the image output devices are directly connected with each other through the external device control unit without the intermediary of the image processing system, whereby inputted data can be processed. When the instruction includes an instruction indicating that the number of outputs from the image output devices is plural, the inputted image data is temporarily stored in an image memory of the image processing system. A plurality of outputs of image data are obtained from the image output devices based on the stored image data. Consequently, if the image input device is an image reader for example, scanning of the document is required only once even in a multicopy mode.
摘要:
An image read apparatus provided with a reader which scans an original and a reference white pattern and reads the image by an image sensor, a line RAM which temporarily stores therein the read difference white pattern, a conversion memory which has a conversion table for performing shading correction and gamma correction and which outputs a correction signal from an image signal of the reference white pattern and an original image signal, and a binary digitizing circuit which binary-digitizes the correction signal by a predetermined method and outputs it to an output circuit, so as to simultaneously perform the shading and gamma correction of the original image signal and reads a halftone faithfully to the original to output the read image signal to an output device.
摘要:
A power supply device to electroconductively connect a power-fed terminal included in a power-fed unit and a power supply terminal of a power supply board. The power supply device includes a unit contact portion to contact the power-fed terminal; a board contact portion to contact the power supply board; a connector to connect the unit contact portion and the board contact portion; and a support member to support the unit contact portion, the board contact portion, and the connector. The unit contact portion is held on an inner face of the support member opposed to the power-fed unit; the board contact portion is held on an outer face of the support member opposed to the power supply board; and the connector connects the unit contact portion and the board contact portion through the support member.
摘要:
In a paper feeder, a signal switching unit switches a paper present signal output from a paper detector to a paper absent signal indicative of absence of a paper in the second paper cassette if a first paper cassette is pulled out from a specific position.
摘要:
An image forming apparatus includes a latent image carrier, a latent image forming unit to form an electrostatic latent image on the latent image carrier, at least one developing device disposed to contact the latent image carrier to develop the latent image with developer stored therein, a cooling mechanism including at least one cooling device disposed close to the developing device to cool the developing device, a developer amount detector electrically connected to the developing device to detect an amount of the developer remaining in the developing device, and a cooling mechanism controller connected to the cooling mechanism to change a cooling power of the cooling mechanism according to a detection result generated by the developer amount detector. The developing device includes a rotary member whose shaft is rotationally supported by at least one bearing and is not to be supplied with new developer while any developer remains therein.
摘要:
An image forming apparatus includes a transfer belt that conveys a transfer material, and a photosensitive body that catches the transfer material between the photosensitive body and the transfer belt and that transfers a toner image to the transfer material. The transfer belt is driven in conjunction with the opening action of the front cover, and the photosensitive body is separated from the transfer belt in conjunction with the opening action of the front cover.
摘要:
A fixing device includes a pressurization member connected to a pressing rotary body to press the pressing rotary body against a fixing rotary body; a depressurization assembly interposed between the pressing rotary body and the pressurization member and movable between a reduced pressure position where the depressurization assembly causes the pressurization member to press the pressing rotary body against the fixing rotary body with reduced pressure therebetween and an enhanced pressure position where the depressurization assembly is free from pressure from the pressurization member to cause the pressurization member to press the pressing rotary body against the fixing rotary body with enhanced pressure therebetween; a positioner separatably contacting the depressurization assembly to immovably halt the depressurization assembly at the enhanced pressure position; and a position detector separatably contacting the depressurization assembly to detect the position of the depressurization assembly.
摘要:
In a paper feeder, a signal switching unit switches a paper present signal output from a paper detector to a paper absent signal indicative of absence of a paper in the second paper cassette if a first paper cassette is pulled out from a specific position.
摘要:
An image forming apparatus capable of reliably positioning a process unit in a main image forming apparatus body, without impairing ease of mounting/dismounting of the process unit achieved by a simple structure. The image forming apparatus including a convex section, provided on the process unit, that projects towards the insertion side; an engagement section, provided on the main apparatus body, that positions the process unit in a width direction by engaging with the convex section; and a guidance section, provided on at least one of a tip end of the convex section and the main apparatus body, that guides the convex section towards the guidance section when mounting the process unit.
摘要:
A process cartridge includes an image carrier unit which is equipped with an image carrier, on which an electrostatic latent image is formed, and a developer supply unit which supplies developer to the image carrier unit 11. The image carrier unit and the developer supply unit are configured to be attached and detached with respect to an apparatus main body in which the units are accommodated. Electrical contacts are provided to form electrical connection between the image carrier unit 11 and the developer supply unit 9 in a mounted state in the apparatus main body.