Patent application number | Description | Published |
20110069102 | IMAGE RECORDING APPARATUS - An image recording apparatus including: a sheet-feed mechanism; a sheet-detect portion; an image recording portion having a nozzle face; a cap for covering the nozzle face; a sucking mechanism; a drive source which generates a drive force; a drive-force transmitting mechanism which transmits one of a forward-direction drive force and a reverse-direction drive force to the sheet-feed mechanism and the sucking mechanism respectively for feeding of the sheet in one direction by the sheet-feed mechanism and an operation of the sucking mechanism, and which transmits the other thereof to the sheet-feed mechanism for feeding of the sheet in another direction by the sheet-feed mechanism; and a controller which controls the drive source such that the sheet is fed in the one direction and discharged without the feeding in said other direction by the sheet-feed mechanism after the sheet-detect portion has detected the sheet during the operation of the sucking mechanism. | 03-24-2011 |
20110293348 | IMAGE RECORDING APPARATUS - An image recording apparatus includes: at least one roller pair which has a driving roller and a driven roller facing the driving roller and which rotates while interposing the recording medium therebetween to transport the recording medium in a first direction; a recording section which records an image on the recording medium transported by the roller pair; a position detecting section which detects a position of the recording medium with respect to the roller pair in a second direction perpendicular to the first direction before the recording section starts recording; a determining section which determines a rotation amount of the driving roller before the recording section starts the recording depending on the position in the second direction of the recording medium detected by the position detecting section; and a control unit which controls the driving roller based on the rotation amount determined by the determining section. | 12-01-2011 |
20110309571 | IMAGE FORMING APPARATUS - An image recording apparatus including: (i) a first controlling portion configured to intermittently convey a following sheet at a second velocity together with intermittent conveyance of a preceding sheet at a first velocity higher than the second velocity; (ii) a predicting portion configured to predict one of the successive intermittent conveyances of the following sheet which is performed together with one of the successive intermittent conveyances of the preceding sheet which causes the trailing end of the preceding sheet to pass a reference position; and (iii) a second controlling portion configured to inhibit the predicted one of the successive intermittent conveyances of the following sheet, and configured to convey the following sheet at a third conveying velocity higher than the second conveying velocity, from a point of time at which the trailing end of the preceding sheet passes the reference position, such that conveyance of the following sheet at the third conveying velocity is stopped without a leading end of the following sheet being brought into contact with the trailing end of the preceding sheet. | 12-22-2011 |
20120249707 | IMAGE RECORDING APPARATUS AND IMAGE RECORDING METHOD - An image recording apparatus including: first and second trays on each of which a recording medium is placed; first and second rollers respectively for the first and second trays; a recording head mounted on a carriage; a drive source; a switching portion switchable to a first posture and a second posture by its contact with the carriage to change transmission of a drive power of the drive source; and a control section configured, where a switching processing is required for switching a target of the transmission of the drive power by moving the carriage to contact the switching portion to change its posture, to start the switching processing in image recording on one recording medium and then to execute a forward and reverse rotation processing for rotating the drive source forwardly and reversely. | 10-04-2012 |
20130256983 | IMAGE RECORDING APPARATUS - An image recording apparatus includes: a first motor for rotating first and second rollers; a second motor; a recording portion provided downstream of the first roller, the second roller provided downstream of the recording portion; a sensor portion provided between the recording portion and the second roller to sense a sheet; and a first gear movable between a first position and a second position where reverse rotational power of the first roller is transmitted to the second roller. When a controller determines that an upstream edge of the sheet in a conveying direction has reached a third position located between the recording portion and the sensor portion, the controller starts driving the second motor to move the first gear from the first position to the second position and thereafter controls the first motor to perform a forward rotation and a reverse rotation alternately a set number of times. | 10-03-2013 |
20140168308 | SHEET TRANSPORTING APPARATUS AND IMAGE FORMING SYSTEM - A sheet transporting apparatus is provided, including a transport mechanism provided with a roller, a motor, a controller, and a measuring input unit, wherein a transport route has a curved area for inverting the sheet, and the controller is constructed such that the control on the motor is executed by a closed loop control system by using a measured value of an control output at an initial stage of the transport of a sheet from a tray, and the control on the motor is switched from the control performed by the closed loop control system to control performed by an open loop control system on condition that a preset phenomenon arises after the sheet is taken out of the tray. | 06-19-2014 |
20150158292 | INKJET PRINTER AND COMPUTER-READABLE RECORDING MEDIUM CONTAINING PROGRAM THEREFOR - An inkjet printer is provided with a conveyor, a carriage movable in a scanning direction, and mounting a printing head and a sensor configured to output a detection signal based on absence/presence of the sheet, and a controller. The controller is configured to obtain image data representing an image to be printed on the sheet, calculate, based on the image data, an estimate margin value which is used to determine a margin width at an end, in a scanning direction, of the sheet, and detect end positions, in the scanning direction, of the sheet based on the detection signal during movement of the carriage in the scanning direction when the margin width estimated based on the estimate margin value is less than a threshold width, while the detection process is not executed when the margin width is not less than a threshold width. | 06-11-2015 |
20150273922 | SHEET PROCESSING APPARATUS, AND METHOD AND COMPUTER-READABLE MEDIUM THEREFOR - A sheet processing apparatus including a controller configured to move a carriage from an initial position to such a position that an optical sensor traverses one of two side edges of a sheet in a scanning direction, in a direction along the scanning direction, in response to the sheet reaching a position opposed to the optical sensor, adjust a light emitting quantity of the optical sensor while the carriage is being moved, within a period from when the carriage begins to move from the initial position to when the optical sensor traverses the one side edge, calculate a position of the one side edge traversed by the optical sensor after the adjustment, based on detection values, corresponding to the light receiving quantity, output from the optical sensor after the adjustment, and identify edge positions of the two side edges based on the calculated position of the one side edge. | 10-01-2015 |
Patent application number | Description | Published |
20110050780 | IMAGE RECORDER - An image recorder includes a driving source generating any of a first-direction force and a second-direction force, a function executing mechanism executing a functional operation, a switching mechanism switching between a first state to allow the function executing mechanism to execute the functional operation and a second state to forbid the function executing mechanism to execute the functional operation, a transmission mechanism transmitting the first-direction force to a feed roller unit and the function executing mechanism and transmitting the second-direction force to the feed roller unit and the switching mechanism, and a controller that after detection of a sheet on a tray, controls the driving source to generate the second-direction force such that the switching mechanism switches to the second state, and thereafter controls the driving source to generate the first-direction force such that the feed roller unit nips the sheet on the tray. | 03-03-2011 |
20120081716 | IMAGE RECORDING APPARATUS - An image recording apparatus is provided. The image recording apparatus includes a first conveyer to convey a recording medium in a first direction, a recording unit to record the image on the recording medium, a second conveyer including a first roller pair with a first driving roller and a first driven roller, an image position detector to detect a position of the formed image along a second direction within the recording medium, a rotation rate setting unit to set a rotation rate of the first driving roller based on the detected position of the formed image when a part of the formed image on the recording medium is nipped by the first roller pair, and a controller to control the first driving roller to rotate in the rotation rate set by the rotation rate setting unit and convey the recording medium by the first roller pair. | 04-05-2012 |
20140035985 | INKJET PRINTER - An inkjet printer including a feeding device configured to feed a sheet in a feeding direction, a platen configured to support the sheet, a recording device configured to eject ink on the sheet, contacting members configured to contact the sheet, a detector configured to detect an end portion position of the sheet in a width direction, and a controller configured to control the feeding device and the recording device is provided. The contacting members are arranged at intervals in the width direction, and the controller performs a suppression process in which at least one of the feeding device and the recording device is controlled to suppress a contact of the sheet with the recording device when the end portion position detected by the detector is a position between the two adjacent contacting members. | 02-06-2014 |
20150266322 | INKJET PRINTER - An inkjet printer including a feeding device configured to feed a sheet in a feeding direction, a platen configured to support the sheet, a recording device configured to eject ink on the sheet, contacting members configured to contact the sheet, a detector configured to detect an end portion position of the sheet in a width direction, and a controller configured to control the feeding device and the recording device is provided. The contacting members are arranged at intervals in the width direction, and the controller performs a suppression process in which at least one of the feeding device and the recording device is controlled to suppress a contact of the sheet with the recording device when the end portion position detected by the detector is a position between the two adjacent contacting members. | 09-24-2015 |