摘要:
An image forming apparatus includes: an image carrier that is rotatably arranged and carries an image on an outer circumferential surface thereof; a transfer member that is rotatably arranged to face the image carrier and transfers the image carried on the image carrier onto a sheet held between the transfer member and the image carrier; a leading edge gripping member that is secured to the transfer member and grips a leading edge side of the sheet in a transport direction thereof on an outer circumferential surface of the transfer member; and a trailing edge holding member that is arranged to be rotatable around the transfer member, holds a trailing edge side of the sheet in the transport direction thereof between the trailing edge holding member and the outer circumferential surface of the transfer member, and bends to release the trailing edge side of the sheet in the transport direction thereof.
摘要:
A developing device includes: a developer holding body including: a hollow development rotary body which is opposed to an image holding body capable of holding a toner image and has a smooth surface whose surface roughness is lower than or equal to 5 μm in terms of maximum height; and a magnet member which is fixedly housed in the development rotary body and in which a plurality of magnetic poles are arranged alongside its periphery, the developer holding body operating in such a manner that developer containing toner and carrier is held on the development rotary body by magnetic force produced by the magnetic poles of the magnet member as the development rotary body is rotated; a layer regulating rotary body as defined herein; and a development driving device as defined herein.
摘要:
An image forming apparatus includes: a document loading tray that loads a document; a document transport path that transports the document; an image reading unit that is disposed in the document transport path and reads an image of the document; a document output tray into which the document that has been transported on the document transport path is ejected; a recording medium loading tray into which a recording medium is loaded; a recording medium transport path on which the recording medium is transported; an image recording unit that is disposed in the recording medium transport path and records an image on the recording medium; and a recording medium output tray into which the recording medium that has been transported on the recording medium transport path is output. The recording medium loading tray is disposed between the document loading tray and the document output tray.
摘要:
An image forming apparatus includes an image carrier that is rotatable; a transfer member that is rotatably disposed so as to face the image carrier, the transfer member transferring an image carried by the image carrier to a sheet; a leading end gripping member that is attached to the transfer member, the leading end gripping member gripping a leading end of the sheet in the transport direction on an outer peripheral surface of the transfer member; a trailing end holding member that holds a trailing end of the sheet in the transport direction between the trailing end holding member and the outer peripheral surface of the transfer member; and a controller that changes a distance between the leading end gripping member and the trailing end holding member when holding the sheet on the basis of a length of the sheet in the transport direction.
摘要:
An image forming apparatus includes: an image carrier that rotates; a developing unit that visualizes an electrostatic latent image carried on the image carrier with a color developer into a developer image; a transfer unit that transfers the developer image carried on the image carrier to a sheet in a predetermined transfer position; a fixing unit that fixes the developer image transferred by the transfer unit to the sheet; a transport unit that transports the sheet to which the color developer image has been fixed by the fixing unit, and returns the sheet to the transfer position for transferring a developer image of another color developer to be superposed on the developer image having been fixed to the sheet; and an adjustment unit that performs adjustment to reduce a time difference between time for returning the sheet by the transport unit and time for an integer number of rotations of the image carrier.
摘要:
A transport device includes: a positioning member provided in a sheet transport path, used for positioning of a print sheet in a direction orthogonal to a sheet transport direction; and a skewed roller that transports the print sheet while skewing the print sheet toward a direction of the positioning member, a transport roller being provided in a position different from the skewed roller in the sheet transport direction.
摘要:
An image forming apparatus includes an image forming unit detachably attached to an image forming apparatus. The image forming unit includes a first unit that accommodates a first process device, and a second unit that is detachable from the first unit and accommodates a second process device with a longer life than the first process device.
摘要:
A conveyance mechanism includes a first conveyed material storage section and a second conveyed material storage section that respectively store a first conveyed material and a second conveyed material. When a position of the first conveyed material storage section is changed to a conveyed position where the first conveyed material is to be conveyed, a discharge destination of a discharge member is switched to a first conveyed material discharge section. When the position of the first conveyed material storage section is changed to an evacuation position evacuated from the conveyed position, the discharge destination of the discharge member is switched to a second conveyed material discharge section.
摘要:
A developing device includes: a developer holding body including: a hollow development rotary body which is opposed to an image holding body capable of holding a toner image and has a smooth surface whose surface roughness is lower than or equal to 5 μm in terms of maximum height; and a magnet member which is fixedly housed in the development rotary body and in which a plurality of magnetic poles are arranged alongside its periphery, the developer holding body operating in such a manner that developer containing toner and carrier is held on the development rotary body by magnetic force produced by the magnetic poles of the magnet member as the development rotary body is rotated; a layer regulating rotary body as defined herein; and a development driving device as defined herein.
摘要:
An image forming apparatus includes an image carrier, a transfer body, an elastic layer, a gripper, and a pressing member. The gripper is located in a cutout region in which a cutout is formed. The gripper grips a leading end portion of the recording medium wrapped around the transfer body and releases the leading end portion that is to be separated from the transfer body. At least part of the pressing member is located closer to a trailing-end side of the recording medium than the gripper. The pressing member presses a leading end side of the recording medium, whose leading end portion is gripped by the leading-end gripper, against the elastic layer.