Abstract: A printing apparatus, including a sheet conveyer unit with a first roller unit, a printer unit, and a controller, is provided. The controller executes a first-face printing process, wherein an image is printed on a first face of a sheet; a switchback process, wherein the sheet after the first-face printing process is conveyed in a reverse direction by the first roller unit; a second-face printing process, wherein the image is printed on a second face of the sheet; a first ink amount determining process to determine whether an ink amount discharged in the first-face printing process at an end area of the sheet is one of greater than and equal to a first threshold amount; and a switchback setting process, wherein, if the ink amount is smaller than the first threshold amount, a rotation speed of the first roller unit is set at a higher rotation speed.

Abstract: A printing apparatus, including a sheet conveyer unit with a first roller unit, a printer unit, and a controller, is provided. The controller executes a first-face printing process, wherein an image is printed on a first face of a sheet; a switchback process, wherein the sheet after the first-face printing process is conveyed in a reverse direction by the first roller unit; a second-face printing process, wherein the image is printed on a second face of the sheet; a first ink amount determining process to determine whether an ink amount discharged in the first-face printing process at an end area of the sheet is one of greater than and equal to a first threshold amount; and a switchback setting process, wherein, if the ink amount is smaller than the first threshold amount, a rotation speed of the first roller unit is set at a higher rotation speed.

Abstract: A printing apparatus, including a sheet conveyer unit with a first roller unit, a printer unit, and a controller, is provided. The controller executes a first-face printing process, wherein an image is printed on a first face of a sheet; a switchback process, wherein the sheet after the first-face printing process is conveyed in a reverse direction by the first roller unit; a second-face printing process, wherein the image is printed on a second face of the sheet; a first ink amount determining process to determine whether an ink amount discharged in the first-face printing process at an end area of the sheet is one of greater than and equal to a first threshold amount; and a switchback setting process, wherein, if the ink amount is smaller than the first threshold amount, a rotation speed of the first roller unit is set at a higher rotation speed.

Abstract: A controller of an inkjet recording apparatus is configured to calculate an energized time length during which a timer is in an energized state after a particular calculation start point for calculating a lapse time length based on a time measured by the timer and store the energized time length, determine whether there exists a non-energized state after the calculation start point, estimate the non-energized time length, referring to the energized time length and a time length parameter stored in a memory when it is determined that there exists the non-energized state after the calculation start point, and calculate the lapse time length elapsed from the calculation start point based on the non-energized time length estimated in the estimation process and the energized time length stored in the memory.

Abstract: A controller of an inkjet recording apparatus is configured to calculate an energized time length during which a timer is in an energized state after a particular calculation start point for calculating a lapse time length based on a time measured by the timer and store the energized time length, determine whether there exists a non-energized state after the calculation start point, estimate the non-energized time length, referring to the energized time length and a time length parameter stored in a memory when it is determined that there exists the non-energized state after the calculation start point, and calculate the lapse time length elapsed from the calculation start point based on the non-energized time length estimated in the estimation process and the energized time length stored in the memory.

Abstract: A printing apparatus, including a sheet conveyer unit with a first roller unit, a printer unit, and a controller, is provided. The controller executes a first-face printing process, wherein an image is printed on a first face of a sheet; a switchback process, wherein the sheet after the first-face printing process is conveyed in a reverse direction by the first roller unit; a second-face printing process, wherein the image is printed on a second face of the sheet; a first ink amount determining process to determine whether an ink amount discharged in the first-face printing process at an end area of the sheet is one of greater than and equal to a first threshold amount; and a switchback setting process, wherein, if the ink amount is smaller than the first threshold amount, a rotation speed of the first roller unit is set at a higher rotation speed.

Abstract: A printing apparatus, including a sheet conveyer unit with a first roller unit, a printer unit, and a controller, is provided. The controller executes a first-face printing process, wherein an image is printed on a first face of a sheet; a switchback process, wherein the sheet after the first-face printing process is conveyed in a reverse direction by the first roller unit; a second-face printing process, wherein the image is printed on a second face of the sheet; a first ink amount determining process to determine whether an ink amount discharged in the first-face printing process at an end area of the sheet is one of greater than and equal to a first threshold amount; and a switchback setting process, wherein, if the ink amount is smaller than the first threshold amount, a rotation speed of the first roller unit is set at a higher rotation speed.

Abstract: A printing apparatus, including a sheet conveyer unit with a first roller unit, a printer unit, and a controller, is provided. The controller executes a first-face printing process, wherein an image is printed on a first face of a sheet; a switchback process, wherein the sheet after the first-face printing process is conveyed in a reverse direction by the first roller unit; a second-face printing process, wherein the image is printed on a second face of the sheet; a first ink amount determining process to determine whether an ink amount discharged in the first-face printing process at an end area of the sheet is one of greater than and equal to a first threshold amount; and a switchback setting process, wherein, if the ink amount is smaller than the first threshold amount, a rotation speed of the first roller unit is set at a higher rotation speed.

Abstract: An image recording apparatus wherein the controller is configured to adjust a distance between a first recording medium and a second recording medium fed subsequently to the first recording medium in a medium feeding direction on the basis of a length L1 of a trailing-end marginal area of the first recording medium, a length L2 of a leading-end marginal area of the second recording medium, and a length L0 of a feeding-path recording area on a medium feeding path in the medium feeding direction such that the first recording medium and the second recording medium are not overlapped with each other in the feeding-path recording area and such that respective image recorded areas of the first recording medium and the second recording medium are not disposed on the feeding-path recording area at the same time.

Abstract: An image recording apparatus includes an acquiring section, a recording section, and a width setting section. The acquiring section acquires print data indicative of an image having a size including a recording surface of a recording medium. The recording section records a borderless image on the recording medium based on the print data while the recording medium is conveyed in a conveying direction. The recording medium has an upstream side and a downstream side with respect to the conveying direction. The width setting section sets width of the image in a widthwise direction perpendicular to the conveying direction. The width of the image increases from the downstream side toward the upstream side in the conveying direction.

Abstract: An image-forming apparatus is capable of performing a non-margin recording operation without a margin on a recording medium and providing a waiting time between a moment of termination of a movement of a carriage in one of opposite directions and a moment of initiation of a subsequent movement of the carriage in the other direction, if the non-margin recording operation is performed during the movement of the carriage in the above-indicated one direction. The carriage is moved in the other direction (returned) at a speed lower than that of the movement in the above-indicated one direction, so that the back surface of an edge portion (e.g., leading end portion) of the recording medium is protected from contamination with an ink mist produced from the ink droplets.

Abstract: An image recording apparatus wherein the controller is configured to adjust a distance between a first recording medium and a second recording medium fed subsequently to the first recording medium in a medium feeding direction on the basis of a length L1 of a trailing-end marginal area of the first recording medium, a length L2 of a leading-end marginal area of the second recording medium, and a length L0 of a feeding-path recording area on a medium feeding path in the medium feeding direction such that the first recording medium and the second recording medium are not overlapped with each other in the feeding-path recording area and such that respective image recorded areas of the first recording medium and the second recording medium are not disposed on the feeding-path recording area at the same time.

Abstract: An image-forming apparatus having an inkjet type printer is configured to prevent ink from being wastefully consumed through a purge processing. Before next purge processing is executed, test printing is carried out. The user looks at the result of the test printing and inputs instruction indicating whether or not the next purge processing is to be executed. If the inputted instruction indicates that immediate purge processing is unnecessary, execution of the purge processing is prolonged. In this manner, a purge processing is not automatically executed but executed only when the test printing indicates that an ejection condition of ink is no good.

Abstract: Angles of inclination of the left and right end edges of recording paper as a recording medium are detected. In the case where it is determined an image having a size extended from an image recording region of the recording paper is recordable over the image recording region or even in the case where it is determined that the image represented by the image data is not recordable over the image recording region of the recording paper, when an input operation is performed indicating the user's intention to continue recording, an image data conversion process is performed for converting a color of a portion of the image data, which is not to be recorded in the image recording region of the recording paper, into a color of which ink is not to be ejected. Thereby, ink is ejected only to the image recording region of the recording paper.

Abstract: A printer includes a print unit which prints an image on a recording medium by adhering recording material based on image data; a storage unit which stores a value corresponding to a reference recording material density; a reference density acquisition unit which acquires from the image data a reference recording material density of an area within the image; a specifying unit which specifies a value corresponding to the acquired reference recording material density by referring to the storage unit; a detection unit which detects a recording material density in the area of the printed image; a determination unit which determines whether the detected recording material density in the area is within a range determined based on the specified value; and a controller which indicates a print failure and/or stops printing if the determination unit determines that the detected recording material density detected is outside of the range.

Abstract: A sheet feeder including: (a) a pair of feed rollers operable to have a plurality of successive rotational motions, so as to be rotated by a predetermined amount in each one of the successive rotational motions, for thereby causing a sheet nipped between the pair of feed rollers, to be fed along a feed path by a desired distance as a result of the each one of the successive rotational motions; (b) a back-tension applier disposed in the feed path, and configured to apply a back tension to the sheet that is fed along the feed path; and (c) a motion controller configured to control the successive rotational motions of the feed rollers, and to command the feed rollers to be rotated by a compensated amount that includes a supplementary amount in addition to the predetermined amount, in each of at least one of the successive rotational motions. Also disclosed is a process of feeding a sheet, by using the sheet feeder.

Abstract: An image-forming apparatus is capable of performing a non-margin recording operation without a margin on a recording medium and providing a waiting time between a moment of termination of a movement of a carriage in one of opposite directions and a moment of initiation of a subsequent movement of the carriage in the other direction, if the non-margin recording operation is performed during the movement of the carriage in the above-indicated one direction. The carriage is moved in the other direction (returned) at a speed lower than that of the movement in the above-indicated one direction, so that the back surface of an edge portion (e.g., leading end portion) of the recording medium is protected from contamination with an ink mist produced from the ink droplets.

Abstract: An image-forming apparatus is capable of performing a non-margin recording operation without a margin on a recording medium and providing a waiting time between a moment of termination of a movement of a carriage in one of opposite directions and a moment of initiation of a subsequent movement of the carriage in the other direction, if the non-margin recording operation is performed during the movement of the carriage in the above-indicated one direction. The carriage is moved in the other direction (returned) at a speed lower than that of the movement in the above-indicated one direction, so that the back surface of an edge portion (e.g., leading end portion) of the recording medium is protected from contamination with an ink mist produced from the ink droplets.

Abstract: In view of the fact that a limited storage area of a facsimile memory cannot store a large amount of data necessary to operate and manage the facsimile machine, a hard disk of a personal computer connected to the facsimile machine is used for storing such a large amount of data. For example, an application software needed for achieving a certain function of the facsimile machine is supplied from a service station managed by a manufacturer of the facsimile machine and is downloaded and installed in a hard disk of the personal computer. An example of the function is a scheduled/delayed transmission for scheduling a time of facsimile transmission at a specific time or after a certain period of time has passed. As far as the facsimile machine and the personal computer are connected, other kinds of data, such as help list data and facsimile transaction information, are stored in the hard disk of the personal computer.

Abstract: In view of the fact that a limited storage area of a facsimile memory cannot store a large amount of data necessary to operate and manage the facsimile machine, a hard disk of a personal computer connected to the facsimile machine is used for storing such a large amount of data. For example, an application software needed for achieving a certain function of the facsimile machine is supplied from a service station managed by a manufacturer of the facsimile machine and is downloaded and installed in a hard disk of the personal computer. An example of the function is a scheduled/delayed transmission for scheduling a time of facsimile transmission at a specific time or after a certain period of time has passed. As far as the facsimile machine and the personal computer are connected, other kinds of data, such as help list data and facsimile transaction information, are stored in the hard disk of the personal computer.