Abstract: A recording apparatus according to a first aspect of the invention comprises a recording unit, a first adjuster, and a second adjuster. The recording unit is configured to record an image on a recording medium, and includes an opposing face to face the recording medium at a time of recording an image on the recording medium. The firs adjuster is configured to rotate a first position and a second position different from the first position, about a first axis perpendicular to the opposing face. The first and second positions are defined on the recording unit. The second adjuster is configured to rotate the first position and the second position about a second axis, different from the first axis, perpendicular to the opposing face.

Abstract: An inkjet printer is provided that is configured to store a plurality of pieces of gap information respectively corresponding to a plurality of examined sections discretely arranged along a head moving direction on a recording sheet, each of the plurality of examined sections including a corresponding one portion of top portions and bottom portions on the recording sheet, and calculate interpolation gap information to be interpolated over a whole width in the head moving direction of at least one of a plurality of segments, each of which has a width in the head moving direction defined by two adjacent sections of the plurality of examined sections, based on the stored gap information.

Abstract: An inkjet printer is configured to acquire gap variation information related to a variation of a gap between a specific portion of an ink discharging surface and a recording sheet as a function of an inkjet head position, the specific portion located within a usage nozzle disposed area where usage nozzle rows to be actually used are disposed, determine representative gap variation information related to a variation, as a function of the inkjet head position, of a representative gap representing actual gaps between the usage nozzle rows and the recording sheet, by multiplying the gap variation information by a correction coefficient dependent on a width of the usage nozzle disposed area in a head moving direction and a wavelength of a wave shape of the recording sheet, and determine ink discharging timing based on the representative gap variation information, assuming that the actual gaps are equal to the representative gap.

Abstract: 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.

Abstract: An inkjet printer including an inkjet head with an ink discharging surface, a head scanning unit to drive the inkjet head to reciprocate along a first direction, and a pattern-printing control device to control printing a gap level pattern on a recording medium, is provided. The pattern-printing control device controls the inkjet head and the head scanning unit to print the gap level pattern including a plurality of unit patterns, in each of which the first linear pattern and the second linear pattern intersect each other, aligned along the first direction by manipulating the inkjet head to form a plurality of first linear patterns, which are formed to intersect the first direction, along the first direction, and to form a plurality of second linear patterns, which are formed to intersect the first linear patterns respectively at a same angle, along the first direction.

Abstract: There is provided an ink jet recording apparatus including an ink jet head; a scanning mechanism for scanning the ink-jet head; a transport mechanism including nip sections for nipping a recording medium; and a controller including a pattern forming mechanism, which controls the ink jet head to form a pattern including a mark for detecting a deviation between a landing position in a forward scanning and a landing position in a backward scanning; wherein the pattern forming mechanism controls the ink jet head to form a part of the mark on the recording medium in one of an area which overlaps in the transport direction with one of the nip sections and areas which are placed at outside positions of the nip sections nipping the recording medium at outermost positions in the scanning direction.

Abstract: An inkjet printer is provided that is configured to store a plurality of pieces of gap information respectively corresponding to a plurality of examined sections discretely arranged along a head moving direction on a recording sheet, each of the plurality of examined sections including a corresponding one portion of top portions and bottom portions on the recording sheet, and calculate interpolation gap information to be interpolated over a whole width in the head moving direction of at least one of a plurality of segments, each of which has a width in the head moving direction defined by two adjacent sections of the plurality of examined sections, based on the stored gap information.

Abstract: An inkjet printer is configured to acquire gap variation information related to a variation of a gap between a specific portion of an ink discharging surface and a recording sheet as a function of an inkjet head position, the specific portion located within a usage nozzle disposed area where usage nozzle rows to be actually used are disposed, determine representative gap variation information related to a variation, as a function of the inkjet head position, of a representative gap representing actual gaps between the usage nozzle rows and the recording sheet, by multiplying the gap variation information by a correction coefficient dependent on a width of the usage nozzle disposed area in a head moving direction and a wavelength of a wave shape of the recording sheet, and determine ink discharging timing based on the representative gap variation information, assuming that the actual gaps are equal to the representative gap.

Abstract: 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.

Abstract: 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.

Abstract: A liquid jetting apparatus includes a liquid jetting head having a liquid jetting surface in which a plurality of nozzles are aligned along a predetermined direction, a head holder holding the liquid jetting head and being rotatable within a plane parallel to the liquid jetting surface, a rotation regulation member contacting with two contact portions of the head holder to regulate rotation of the head holder, and an inclination adjustment mechanism, which has a cam member being rotatable about a rotation shaft and being capable of displacing a first contact portion of the two contact portions in a direction including a directional component perpendicular to a direction linking the first contact portion with a second contact portion of the two contact portions within the plane, and which adjusts inclination of the head holder by rotating the cam member to rotate the head holder about the second contact portion.

Abstract: A first common tangent of a first pulley and a second pulley is in parallel with the scanning direction. A second external common tangent of the first pulley and a third pulley intersects with the scanning direction. A motor has a shaft extended in a first direction and connected to the third pulley. An endless belt is wound on the first, second, and third pulleys. A belt connecting portion is provided on the carriage and connected to the belt in a portion on the first external common tangent. The distance between the head passing region and the third pulley is greater than a radial difference obtained as the length of the radius of the motor minus the radius of the third pulley. The distance between the head passing region and the belt connecting portion is smaller than the radial difference.

Abstract: A method including acquiring a first deviation value of ink landing positions in each position in a first range from a first pattern printed over the first range of a recording sheet in a scanning direction at a first moving velocity of an inkjet head, acquiring variation information representing a variation in the scanning direction of the first deviation value, acquiring from the variation information a first representative value representing the first deviation value in the first range, acquiring a second deviation value from a second pattern printed over a second range included in the first range at a second moving velocity of the inkjet head, acquiring a second representative value representing a deviation value in the first range at the second moving velocity, based on the second deviation value and a difference between the first representative value and the first deviation value in the second range.

Abstract: An inkjet printer is configured to acquire gap variation information related to a variation of a gap between a specific portion of an ink discharging surface and a recording sheet as a function of an inkjet head position, the specific portion located within a usage nozzle disposed area where usage nozzle rows to be actually used are disposed, determine representative gap variation information related to a variation, as a function of the inkjet head position, of a representative gap representing actual gaps between the usage nozzle rows and the recording sheet, by multiplying the gap variation information by a correction coefficient dependent on a width of the usage nozzle disposed area in a head moving direction and a wavelength of a wave shape of the recording sheet, and determine ink discharging timing based on the representative gap variation information, assuming that the actual gaps are equal to the representative gap.

Abstract: An inkjet printer including an inkjet head with an ink discharging surface, a head scanning unit to drive the inkjet head to reciprocate along a first direction, and a pattern-printing control device to control printing a gap level pattern on a recording medium, is provided. The pattern-printing control device controls the inkjet head and the head scanning unit to print the gap level pattern including a plurality of unit patterns, in each of which the first linear pattern and the second linear pattern intersect each other, aligned along the first direction by manipulating the inkjet head to form a plurality of first linear patterns, which are formed to intersect the first direction, along the first direction, and to form a plurality of second linear patterns, which are formed to intersect the first linear patterns respectively at a same angle, along the first direction.

Abstract: An inkjet printer is provided that is configured to store a plurality of pieces of gap information respectively corresponding to a plurality of examined sections discretely arranged along a head moving direction on a recording sheet, each of the plurality of examined sections including a corresponding one portion of top portions and bottom portions on the recording sheet, and calculate interpolation gap information to be interpolated over a whole width in the head moving direction of at least one of a plurality of segments, each of which has a width in the head moving direction defined by two adjacent sections of the plurality of examined sections, based on the stored gap information.

Abstract: An image forming apparatus comprises: an image forming mechanism including a motor, and an image forming unit which operates by the motor to form an image on a recording sheet; a registration unit which registers a job; a control unit which controls the image forming mechanism to form an image corresponding to the job registered through the registration unit on a recording sheet; a number obtaining unit which obtains the number of recording sheets required for the job registered through the registration unit; and a setting unit which sets a rotation speed of the motor according to the number of recording sheets obtained by the number obtaining unit. The control unit controls the image forming mechanism to form the image corresponding to the job registered through the registration unit on the recording sheet by rotating the motor at the rotation speed set by the setting unit.

Abstract: A first common tangent of a first pulley and a second pulley is in parallel with the scanning direction. A second external common tangent of the first pulley and a third pulley intersects with the scanning direction. A motor has a shaft extended in a first direction and connected to the third pulley. An endless belt is wound on the first, second, and third pulleys. A belt connecting potion is provided on the carriage and connected to the belt in a portion on the first external common tangent. The distance between the head passing region and the third pulley is greater than a radial difference obtained as the length of the radius of the motor minus the radius of the third pulley. The distance between the head passing region and the belt connecting portion is smaller than the radial difference.

Abstract: 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.

Abstract: A liquid jetting apparatus includes a liquid jetting head having a liquid jetting surface in which a plurality of nozzles are aligned along a predetermined direction, a head holder holding the liquid jetting head and being rotatable within a plane parallel to the liquid jetting surface, a rotation regulation member contacting with two contact portions of the head holder to regulate rotation of the head holder, and an inclination adjustment mechanism, which has a cam member being rotatable about a rotation shaft and being capable of displacing a first contact portion of the two contact portions in a direction including a directional component perpendicular to a direction linking the first contact portion with a second contact portion of the two contact portions within the plane, and which adjusts inclination of the head holder by rotating the cam member to rotate the head holder about the second contact portion.