| Patent application number | Description | Published |
|---|
| 20080237970 | Sheet loading device, sheet conveying device, and image forming apparatus - A sheet cassette loads and houses therein a plurality of sheets. A separating unit separates the sheets loaded in the sheet cassette one by one. The separating unit is arranged in the sheet cassette in opposite to a feeding roller that conveys the sheets from the sheet cassette. A rib is formed on a rear surface of a bottom plate of the sheet cassette. The rib is pressed by a pressing member. | 10-02-2008 |
| 20080273908 | Sheet discharging device and image forming apparatus - A sheet-discharging device includes an upper discharging roller, a lower discharging roller, and a protruding member. The protruding member allows discharging of a sheet to outside from the nip between the upper discharging roller and the lower discharging roller, and prevents taking-in of a sheet that has already been discharged. | 11-06-2008 |
| 20090056484 | Image forming apparatus - A reciprocating-motion converting mechanism includes a cam that rotates around a rotation center; a reciprocating member that is reciprocated due to rotation of the cam; and a pressing unit that presses the reciprocating member to the cam. A first load torque is generated by a load applied at a point of contact of the cam and the reciprocating motion member. A load applying unit applies a load to the cam to generate a second load torque having a phase substantially opposite to a phase of the first load torque. | 03-05-2009 |
| 20090121418 | Sheet feeding device and image forming apparatus - A sheet feeding device includes a sheet feeding member, a friction separation member, a retaining member, a downstream guiding member, and a biasing member. The downstream guiding member is arranged downstream of a sheet conveyance direction than the friction separation member such that its guide surface is inclined at a predetermined angle to a front surface of the friction separation member towards the sheet feeding member. A line joining an apex of a sheet guiding member arranged upstream of the sheet conveyance direction than the friction separation member and an apex of the downstream guiding unit is positioned towards the sheet feeding member than a contact portion of the sheet feeding member and the friction separation member. | 05-14-2009 |
| 20100192710 | Sheet conveying device and image forming apparatus - Plural auxiliary rotating members abut at different positions in a circumferential direction of a roller-shaped rotating member that is configured to rotate in a forward direction and a reverse direction. Diameters of a portion of the roller-shaped rotating member where a first auxiliary rotating member abuts and a portion of the roller-shaped rotating member where a second auxiliary rotating member abuts are different from each other. Conveying speeds of sheets conveyed by the first auxiliary rotating member and the second auxiliary rotating member with the roller-shaped rotating member in different directions at the same time are different from each other. | 08-05-2010 |
| 20100201059 | Open/close mechanism for paper tray for use in image forming apparatus - An open/close mechanism can be used for paper trays of an image forming apparatus. The open/close mechanism includes a plate member provided on a side of a housing of the image forming apparatus and configured to pivot upon an axis between an open position and a close position, and a box member that is arranged in the housing beneath the plate member and that can be drawn out of the housing from the side. The open/close mechanism includes also includes a restricting unit that is coupled to the plate member and that abuts against the box member when the box member is set in the housing and when the plate member is in the open position thereby restricting detachment of the box member from the housing. | 08-12-2010 |
| 20100276874 | Manual sheet-feeding device and image forming apparatus - An adjusting member is positioned in a sheet feeding opening. The adjusting member is adjusted according to the size of the paper sheet. The adjusting member does not jut out of an exterior surface of an apparatus body. | 11-04-2010 |
| Patent application number | Description | Published |
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| 20080284090 | Switchback mechanism and image forming apparatus - In a color printer in which a drive force of a fixed gear that rotates not in both a forward direction and a reverse direction but in either one direction only is transmitted to a discharging unit, a swing gear is attached to a branch guide via a switching link and a transmission link as a link mechanism. When a solenoid mechanism starts driving, the transmission link rotates. In accordance with the rotation of the transmission link, the switching link rotates, so that a switching among a discharge conveying path, a duplex-printing conveying path, and a switchback conveying path by the branch guide and a switching of a rotating direction of a transmission gear can be simultaneously performed. | 11-20-2008 |
| 20110127707 | Switchback mechanism and image forming apparatus - In a color printer in which a drive force of a fixed gear that rotates not in both a forward direction and a reverse direction but in either one direction only is transmitted to a discharging unit, a swing gear is attached to a branch guide via a switching link and a transmission link as a link mechanism. When a solenoid mechanism starts driving, the transmission link rotates. In accordance with the rotation of the transmission link, the switching link rotates, so that a switching among a discharge conveying path, a duplex-printing conveying path, and a switchback conveying path by the branch guide and a switching of a rotating direction of a transmission gear can be simultaneously performed. | 06-02-2011 |
