| Patent application number | Description | Published |
|---|
| 20090218762 | RECORDING SYSTEM AND RECORDING METHOD - A recording system includes: a feeding device including a pair of rollers that cooperate with each other to nip a recording medium; a recording device which is configured to record an image on the recording medium; and a control device which is configured to control operations of the feeding device. The control device includes an adjusting portion which is configured to adjust an amount of head poke such that a trailing end of the recording medium is not stopped inside the predetermined range relative to a nip position of the pair of rollers. | 09-03-2009 |
| 20090218763 | SHEET CONVEYING DEVICE AND IMAGE RECORDING APPARATUS - A second support member supports a first support member so that the first support member is movable between a predetermined first position and a second position at an upstream side of the first position in a conveying direction of a recording medium. The first support member is moved to the first position during conveyance of the recording medium by a first conveying section. The first support-member is moved to the second position during non-conveyance of the recording medium by the first conveying section. | 09-03-2009 |
| 20090219322 | IMAGE RECORDING APPARATUS AND IMAGE RECORDING METHOD - An image recording apparatus includes a feeding device which feeds a recording medium based on a target feed amount, a recording device which records an image on the recording medium that is fed by the feeding device, a feed-amount correcting portion which corrects the target feed amount, and a recording-position adjusting portion which adjusts a first position in which an image recording is initiated on the recording medium, corresponding to a correction of the target feed amount by the feed-amount correcting portion. | 09-03-2009 |
| 20090219371 | SHEET FEEDING DEVICE, IMAGE RECORDING APPARATUS AND SHEET FEEDING AMOUNT COMPENSATING METHOD - A sheet feeding device for intermittently feeding a sheet member on the basis of a commanded feeding amount included in each of successively generated feeding commands, including an upstream feeding roller and a downstream feeding roller and rotated by respective first and second amounts of rotation corresponding to the commanded feeding amount, an obtaining portion for obtaining an overrun amount of the sheet member immediately after a trailing edge of the sheet member has left the upstream feeding roller, on the basis of a difference obtained by subtracting a first feeding amount which is a product of a first radius and the first amount of rotation of the upstream feeding roller, from a second feeding amount which is a product of a second radius and the second amount of rotation of the downstream feeding roller, an estimating portion for estimating whether the trailing edge leaves the upstream feeding roller during feeding of the sheet member according to the next feeding command, and a subtracting portion for subtracting the obtained overrun amount of the sheet member from the next commanded feeding amount included in the next feeding command, when the estimating portion estimates that the trailing edge leaves the upstream feeding roller. | 09-03-2009 |
| 20090322018 | CONVEYANCE DEVICE AND CONVEYANCE METHOD - A conveyance device includes a motor, a conveyance unit, a movement detection signal output unit, a storage unit, a time measurement unit, a first updating unit, a standby time setting unit, a second updating unit, a manipulated variable determination unit, and a motor driving unit. The standby time setting unit sets a value larger than a parameter value TX stored in the storage unit as a standby time TW. The second updating unit updates the parameter value TX stored in the storage unit to the standby time TW each time the elapsed time measured by the time measurement unit reaches the standby time TW. | 12-31-2009 |
| 20100039473 | IMAGE RECORDING APPARATUS AND CALCULATION METHOD - An image recording apparatus, including: a platen which supports a sheet; a movable carriage disposed so as to face to the platen; a head mounted on the carriage to record an image on the sheet; an optical sensor mounted on the carriage and constituted by an emitting element which emits light and a receiving element which receives light reflected from the sheet and output an electric signal according to intensity of the reflected light; a changing mechanism which changes the optical sensor between first and second positions; and a calculation section which calculates at least one of a distance between the optical sensor and the sheet and a reflectivity of the sheet on the basis of (a) a first electric signal outputted from the receiving element with the optical sensor disposed at the first position and (b) a second electric signal outputted from the receiving element with the optical sensor disposed at the second position. | 02-18-2010 |
| 20100052251 | SHEET GUIDING APPARATUS - A sheet guiding apparatus, including: a supporting member having a supporting surface which supports a sheet; a first electrode provided in the supporting member; an electric field generating portion configured to generate an electric field between the supporting surface and the first electrode; a guide member which is distant from the supporting surface by a predetermined distance in a direction perpendicular to the supporting surface; a moving portion configured to move the sheet supported by the supporting surface by moving at least one of the supporting member and the guide member relatively to each other in a direction parallel to the supporting surface; and an electric field inverting portion configured to invert a direction of the electric field generated by the electric field generating portion, when a leading end portion of the sheet in a direction in which the sheet is moved has reached a vicinity of the guide member. | 03-04-2010 |
| 20100059926 | ROTATION-BODY CONTROLLING APPARATUS, SHEET FEEDING APPARATUS, AND IMAGE RECORDING APPARATUS - A rotation-body controlling apparatus including: a first motor configured to rotate a first rotation body; a second motor configured to rotate a second rotation body; a first rotation amount detecting portion configured to detect a rotation amount of the first rotation body rotated in synchronization with the first motor; a second rotation amount detecting portion configured to detect a rotation amount of a second rotation shaft rotated in synchronization with the second rotation body; a transmitting mechanism configured such that a rotation of the first rotation body is transmittable to the second rotation shaft; and an origin-position detecting portion configured to detect an origin position of a rotation phase of the first rotation body on the basis of a phase of the first rotation body at a time when the second rotation amount detecting portion has detected a rotation of the second rotation shaft, where the rotation of the first rotation body operated by the first motor is transmitted to the second rotation shaft via the transmitting mechanism. | 03-11-2010 |
| 20100067926 | ELECTRONIC DEVICE - An electronic device includes a carriage conveyance unit, a sheet conveyance unit, a failure detection unit, a position detection unit, and a jam determination unit. The carriage conveyance unit includes a motor and conveys a carriage in a main scanning direction by a driving force of the motor. The sheet conveyance unit conveys a sheet in a sub-scanning direction which crosses the main scanning direction in which the carriage is conveyed. The failure detection unit detects a conveyance failure of the carriage. The position detection unit detects a position of the carriage in the main scanning direction. The jam determination unit determines whether or not the conveyance failure is due to jamming caused by interference between the carriage and the sheet, based on the position of the carriage detected by the position detection unit at a time when the conveyance failure is detected by the failure detection unit. | 03-18-2010 |
| 20110050762 | IMAGE PRINTING DEVICE - an image printing device comprises a transfer roller configured to transfer a printing medium in a transfer direction, a first sensor configured to detect a rotation amount of the transfer roller, a carriage mounted with a printhead. The image printing device further comprises a second sensor mounted to the carriage and configured to detect the printing medium. The image printing device further comprises a reference member disposed at a position opposing to the second sensor and a drive transmission mechanism configured to move the reference member in conjunction with a rotation of the transfer roller. The image printing device determines a position of an origin of the transfer roller based on detection results of the first sensor and the second sensor. | 03-03-2011 |
| 20110074856 | Conveyance Device and Image Forming Apparatus - A conveyance device includes a linear encoder that outputs an encoder signal corresponding to displacement of a conveyed object. The encoder includes an encoder fence provided on an intersecting plane that intersects a reference plane orthogonal to a direction in which a guide element supports the conveyed object. The encoder fence is configured such that a plurality of light-transmitting portions and light-shielding portions are arranged alternately on a side of the encoder fence. The light-transmitting portions and the light-shielding portions are formed so that a first point on each boundary between each of the light-transmitting portions and each of the light-shielding portions adjacent to each other and a second point on the each boundary, which is positioned separately from the first point with respect to a direction along the side of the encoder fence and perpendicular to the conveying direction, are separately positioned with respect to the conveying direction. | 03-31-2011 |
| 20110157271 | INK-JET RECORDING APPARATUS AND INK-JET RECORDING METHOD - An ink-jet recording apparatus is provided, including a first transport section which transports a recording medium; a recording section which is formed with a plurality of nozzles and which records an image on the recording medium by discharging ink droplets from the nozzles; an interference member which is provided at a position separated from the recording section; and a control unit which controls the recording section so that only a part of the nozzles is used for a certain area of the recording medium. | 06-30-2011 |
