摘要:
A roller device that can be exchangeably used in an image forming apparatus includes a roller, a shaft, and two grip members. The roller is configured to cover the shaft along the rotation axis and have two roller ends from which the two shaft end portions of the shaft are projected outwardly along the rotation axis. A shaft is configured to have a rotation axis at a center thereof and have two shaft end portions. The two grip members are each configured to be rotatably disposed to a respective shaft end portion of the two shaft end portions.
摘要:
An image forming apparatus includes an image carrier, a transferor, a fixing unit, and a guide. The image carrier carries a toner image. The transferor opposes the image carrier to form a transfer nip and transfers the toner image on the image carrier onto a recording medium at the transfer nip. The fixing unit fixes the toner image on the recording medium. The guide guides the recording medium bearing the toner image from the transferor toward the fixing unit and includes a surface portion directly contacting the recording medium. The surface portion includes a material for charging the recording medium to have a polarity opposite to the polarity of a toner forming the toner image.
摘要:
One end of a rotational shaft of a supporting rotational body attached with a rotational member is rotatably supported. The rotational member is sandwiched by a supporting frame that rotatably supports supporting rotational bodies spanned with an annular belt and fixing members fixed to the supporting frame. Thus, the one end of the rotational shaft is supported by the supporting frame and the fixing members at, at least two points. A mark detector is fixed to the fixing members, and the fixing members are fixed to the supporting frame at, at least two points. Accordingly, erroneous detection of a rotational angular speed or a rotational angular displacement of a supporting rotational body due to vibration of the supporting rotational body can be suppressed.
摘要:
An image forming apparatus includes an image forming mechanism for forming an image, at least one guide member arranged in parallel, and a belt unit to be inserted into and removed from the image forming apparatus. The belt unit includes a belt, at least two rotating supports, a supporting frame, a cover, and at least one guided member. The belt is formed in an endless belt shape and transfers the image formed by the image forming mechanism. The belt is looped over the rotating supports which are rotatably supported by the supporting frame. The cover covers an outer circumferential surface of the belt. The guided member is disposed on an outer surface of the cover, engages with the guide member, and is slidably moved along the guide member when the belt unit is inserted into and removed from the image forming apparatus.
摘要:
A transfer device transfers a visual image from an image carrier to a recording medium. The transfer device includes a first transfer element that moves and receives the visual image from the image carrier on a first surface of the first transfer element, a second transfer element provided opposite to the first surface of the first transfer element to pinch and convey the recording medium through a secondary transfer nip part, a facing roller provided on a second surface of the first transfer element opposite to the first surface thereof, and a constant-current power supply that applies an electric current voltage to a core metal of the facing roller to transfer the visual image from the first transfer element to the recording medium. The electric current voltage applied to the core metal has a polarity equal to a polarity of the visual image and is subjected to a constant-current control.
摘要:
The present invention relates to an ester represented by the formula [1]: or its pharmaceutically acceptable salt, or use of the same. The compound represented by the formula [1] or its pharmaceutically acceptable salt is useful as an agent for the treatment or prophylaxis of hyperlipidemia or the like, since it disappears very rapidly in the living body and has an excellent MTP inhibitory activity.
摘要:
An image forming apparatus can easily attach or detach a plurality of attachable and detachable units to or from the apparatus main body as a single unit or individually. An intermediate transfer apparatus is supported on a left guide rail and a right guide rail, and is attachable to and detachable from the image forming apparatus main body. A cleaning apparatus that cleans the intermediate transfer belt of the intermediate transfer apparatus is supported by an upper rail and a lower rail so as to be attachable to and detachable from the intermediate transfer apparatus. The detachment direction of the intermediate transfer apparatus and the direction of detachment of the cleaning apparatus are configured to be the same.
摘要:
After an image forming operation is finished, a motor that drives a belt is stopped after a predetermined time period passes since a sensor detects the only one mark provided on the belt. The predetermined time period is different for first, second and third jobs. This is repeated for the jobs thereafter. One job is a series of processing from the start of the motor to the stop of the motor. Thus, the belt stops at three different positions, for each consecutive three jobs.
摘要:
An image forming apparatus including a drum, an optical scanning mechanism, a development mechanism, an intermediate transfer member, movement detecting mechanisms, and a controller. The intermediate transfer member is rotated in synchronism with a rotation of the drum and receives color toner image multiple times to form thereon a composite color toner image including multiple images of different color toners overlaying one to another. The movement detecting mechanisms detect respective movements of the drum and the intermediate transfer member. The controller controls respective rotations of the drum and the intermediate transfer member with results of respective detection performed by the movement detecting mechanisms.
摘要:
An image forming apparatus including a belt guide member fixedly provided at an upstream side of a nip formed between a roller and a transfer roller so the belt guide member protrudes an image bearing belt such that the belt is substantially parallel with a conveying direction of a transfer medium.