Patent application number | Description | Published |
20090283957 | SHEET PROCESSING APPARATUS - A sheet processing apparatus includes an aligning member and a shift conveying unit. The aligning member is movable in a width direction perpendicular to a sheet conveying direction and presses a sheet stack loaded on a sheet processing tray so as to align the sheet stack in the width direction. The unit is provided on the upstream side of the tray and conveys a sheet, shifting the sheet in the width direction. Being shifted by the unit, sheets are loaded at first and second loading positions on the tray. When sheets are loaded at the first loading position, the aligning member is moved to a first standby position corresponding to the first loading position in advance. When sheets are loaded at the second loading position, the aligning member is moved in advance to a second standby position corresponding to the second loading position. | 11-19-2009 |
20100066013 | SHEET STACKING APPARATUS, SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS - A recording material stacking apparatus equipped with a plurality of discharge ports and a plurality of stacking trays can be set to normal mode and large capacity stacking mode each having a different maximum loading capacity. A stacking tray on the upper side has a plurality of lower limit positions and uses a lower limit position located on the upper side when normal mode is selected. On the other hand, it uses a lower limit position located on the lower side when the large capacity stacking mode is selected. The lower limit position located below a stacking tray on the upper side when this large capacity stacking mode is selected exists at a position in which it blocks a lower discharge port of sheets. Selection of the large capacity stacking mode and normal mode is executed according to a result of computation from data input through an input portion. | 03-18-2010 |
20100111583 | SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS - A sheet feeding device includes a sheet supporting portion which supports sheets, a restricting member which is movably disposed in the sheet supporting portion and is moved to a position according to the sheet supported by the sheet supporting portion, to restrict the position of the sheet; and a lock mechanism including a lock projection which is disposed in the restricting member so as to be pivotable in a movement direction of the restricting member and a plurality of lock grooves which are formed on a side of the sheet supporting portion and disengageably engage with the lock projection, so as to restrict movement of the restricting member in a direction reverse to a sheet restricting direction. The pivotal center of the lock projection in the lock mechanism is located downward of the position of an engaging portion between the lock projection and the lock groove. | 05-06-2010 |
20100329730 | IMAGE FORMING APPARATUS - An image forming apparatus includes a cover configured to open/close with respect to an apparatus main body of the image forming apparatus, a pullout unit, a locking member configured to lock the pullout unit according to an operation of inserting the pullout unit into the apparatus main body, and an abutting member movable between a position where the abutting member regulates the closure of the cover by abutting against the cover and a position where the abutting member does not regulate the closure of the cover. When the locking member does not lock the pullout unit, the abutting member is positioned at the position where the abutting member regulates the closure of the cover. | 12-30-2010 |
20110210502 | IMAGE FORMING APPARATUS - If a jam detecting portion detects a sheet jam, a rear end position of the jammed sheet is computed based on information, when a rear end of the jammed sheet is located within an area A | 09-01-2011 |
20120007308 | IMAGE FORMING APPARATUS - If a jam detecting portion detects a sheet jam, a rear end position of the jammed sheet is computed based on information, when a rear end of the jammed sheet is located within an area A | 01-12-2012 |
20130328262 | IMAGE FORMING APPARATUS - An image forming apparatus includes a manual feed portion provided on a side surface of a housing that accommodates an image forming portion and having an abutting portion against which a downstream end in a sheet feeding direction of a sheet inserted into a gap between the manual feed portion and the side surface abuts. The manual feed portion also includes a holding portion configured to hold the sheet such that a sheet surface is held along the side surface of the housing in the condition in which the downstream end of the sheet abuts against the abutting portion. | 12-12-2013 |
20140376949 | IMAGE FORMING APPARATUS - An image forming apparatus includes a fixing unit heating an image formed on a recording medium and disposed along a conveying path conveying the recording medium. The conveying path includes a first guide plate, discharge guide plate portions and second guide plate portion as conveyance guide plates guiding the recording medium. Partition walls and vertical walls are disposed at positions facing these guide plate portions. The air current guide portion guides air taken in from intake ports through an intake guide portion between the respective guide plate portions and each walls. | 12-25-2014 |
20150055992 | IMAGE FORMING APPARATUS - In a constitution provided with no primary-transfer roller, in order to ensure a contact length between each of photosensitive drums and an intermediary transfer belt, the photosensitive drums are disposed in entering amounts at a plurality of levels with respect to a stretching surface of the intermediary transfer belt, and therefore an apparatus is upsized in a height direction. In order to avoid this, four image bearing members are arranged, along the intermediary transfer belt, in the same entering amount with respect to the stretching surface of the intermediary transfer belt, and a depressing member for depressing a belt surface between two central image bearing members toward an outside is provided. | 02-26-2015 |