摘要:
A sheet conveying apparatus includes an apparatus main body, a sheet cassette, a mounting portion and a conveying unit. The sheet cassette is mounted into the apparatus main body. The conveying unit is arranged above the sheet cassette in the apparatus main body. The conveying unit includes a conveyance path, an upper guide unit, a lower guide unit and a locking mechanism. The upper guide unit defines an upper surface part of the conveyance path. The lower guide unit defines a lower surface part of the conveyance path and enters the mounting portion to open the conveyance path. The locking mechanism locks the lower guide unit to the upper guide unit. The lower guide unit includes a projecting piece. The sheet cassette includes a push-up portion. The push-up portion pushes up the projecting piece when the sheet cassette is mounted into the mounting portion.
摘要:
A semiconductive roller for use as a developing roller or the like is provided, which has an outer peripheral surface at least partly imparted with a reduced friction coefficient μ without irradiation with ultraviolet radiation. The semiconductive roller (1) includes a tubular body made of a crosslinking product of an electrically conductive rubber composition containing a crosslinkable rubber component, and a chloride film (5) formed in the outer peripheral surface (4) thereof through chlorination.
摘要:
An image forming apparatus according to the present disclosure includes a type identification value measurement portion, a determination portion and a speed adjustment portion. The type identification value measurement portion uses, when the print job is executed, a media sensor previously provided in a paper feed cassette to measure a type identification value for a sheet to be transported in the print job. The determination portion determines whether or not an incidence of paper delay corresponding to the measured type identification value for the sheet exceeds a previously set threshold value. The speed adjustment portion lowers, when as a result of the determination, the incidence of paper delay exceeds the threshold value, a transport speed of the sheet as compared with a normal transport speed to execute the print job.
摘要:
A sheet feeding device includes: a tip end holding portion configured to hold a tip end of the fed sheet at a first position on the downstream side in the sheet feeding direction in relation to a separation portion; a guide portion configured to guide the sheet; a movement unit configured to move the tip end holding portion and the guide portion between the first position and a second position closer to a feeding portion in relation to the first position; a release portion configured to release the sheet held by the tip end holding portion when the tip end holding portion moves from the first position to the second position; and a conveying portion configured to convey the sheet released from the tip end holding portion at the second position and convey the sheet in an area near the feeding portion in relation to the first position.
摘要:
An image forming apparatus includes a storage unit configured to store a recording medium; a conveyance unit configured to convey the recording medium from the storage unit; an image formation unit configured to perform an image formation for forming an image to be transferred onto the recording medium conveyed from the storage unit; and a detection unit configured to detect a start of the image formation. Upon the detection unit detecting the start of the image formation, the conveyance unit moves the recording medium by a predetermined distance from the storage unit.
摘要:
An image forming apparatus includes an apparatus body, a sheet container detachably attachable to the apparatus body and accommodating recording media therein, an image forming part to form an image on each of the recording media, a sheet separating part to separate the recording media one by one, feed the recording medium toward the image forming part, and include a sheet feeding body and a sheet separating body to rotate in contact with the sheet feeding body and form a sheet separation nip region with the sheet feeding body, a sheet containing unit to contain the recording media therein, and a sheet separating body storing unit disposed at one end of the sheet containing unit to store the sheet separating body therein. The sheet container being pulled out from the apparatus body by moving from the sheet containing unit to the sheet separating body storing unit.
摘要:
A media cassette housing system, which may be usable in an image formation apparatus such as a printer or copier, includes: a guide member configured to guide an insertion of a media cassette from an entrance into an installed position of a cassette housing unit and to guide a pulling out of the media cassette from the installed position to the entrance of the cassette housing unit; and a swingable member provided to the guide member and swingable in inserting and pulling directions of the media cassette. The swingable member includes a slide guide surface configured to come into sliding contact with a slide surface of the media cassette upon the insertion and pulling of the medium cassette.
摘要:
An electrophotographic image forming apparatus includes a recording medium storage unit in which a recording medium is stored, a pickup unit to pick up the recording medium stored in the recording medium storage unit, a pair of transport rollers being engaged with each other to rotate and transport the recording medium picked up by the pickup unit; an image forming unit to form an image on the recording medium transferred by the pair of transport rollers; and a frame including a first support region to support at least one of the pair of transport rollers, and a second support region to support at least a part of the image forming unit, wherein the frame further includes a vibration blocking slit that is disposed between the first and second support regions to block vibration from being transmitted from the first support region to the second support region.
摘要:
An image forming apparatus includes a main body, a sheet stack unit, an endless intermediate transfer member, a first transfer member for transferring a toner image onto the sheets conveyed from the sheet stack unit, at a nip formed between the intermediate transfer member and the first transfer member, and a second transfer member. In addition, a first voltage applying device applies a voltage to the first transfer member, a second voltage applying device applies a voltage having an opposite polarity to the second transfer member, and a controller controls the first and second voltage applying devices. In a timing when a leading edge of a first sheet reaches the nip, a trailing edge of the first sheet contacts a second sheet conveyed on the sheet stack unit, and wherein a period in which the controller causes the first voltage applying device and the second voltage applying device to apply the voltages to the first transfer member and the second transfer member, respectively, is at least from a time when secondary transfer onto the first sheet is started to a time when the trailing edge of the first sheet stops sliding on the second sheet stacked on the sheet stack portion.
摘要:
A sheet feeding device includes a loading section on which sheets are loaded, a delivery section that sequentially delivers the sheets from a top of a stack of the sheets having a side surface loaded on the loading section, a blowing section that has a blowing opening, which opens opposite the side surface of the stack of sheets loaded on the loading section, and that blows air toward the side surface of the stack of sheets through the blowing opening, an inclination section that causes the stack of sheets loaded on the loading section to be inclined in accordance with the quantity of the sheets loaded on the loading section, and a setting section that sets a position of the blowing opening of the blowing section in accordance with an amount of inclination of the stack of sheets that are inclined by the inclination section.