Abstract: An inkjet printer is provided, which is configured to acquire gap information related to a gap between an ink discharging surface and a recording sheet in each individual position of top-formed positions and bottom-formed positions within a predetermined wave-shape generating range, identify, when the predetermined wave-shape generating range includes a partial range in which the recording sheet is not placed, a top-formed position where the gap information has not been acquired and a bottom-formed position where the gap information has not been acquired, within the partial range, complement the unacquired gap information in the identified top-formed position with a value determined based on the respective pieces of gap information acquired in other top-formed positions, and complement the unacquired gap information in the identified bottom-formed position with a value determined based on the respective pieces of gap information acquired in other bottom-formed positions.

Abstract: An inkjet recording apparatus includes a tank forming an ink chamber and including an injection inlet, a recording head, a cover, a monitor, a cover sensor, an operation panel, and a controller. The controller controls operation of the recording head and the monitor. The controller performs decision processing deciding whether ink injection into the ink chamber after complement of an initial process is completed, and counts an amount of ink discharged from the recording head. The controller controls the monitor to display notification depending on the decision processing and the counted amount of discharged ink.

Abstract: An inkjet recording apparatus includes an ink tank, a recording head, an ink sensor, a monitor, an operation panel, and a controller configured to control operation thereof. The controller receives a completion signal indicating completion of ink injection, and receives a first signal or a second signal from the ink sensor based on whether a predetermined amount of ink is sensed in the ink chamber. Based on the completion signal and receipt of the first signal, inquiry information is displayed on the monitor regarding whether ink injection into the ink chamber is completed. Based on the completion signal and receipt of the second signal, a notification is displayed on the monitor that is based on the ink sensor not sensing the predetermined amount of ink.

Abstract: A liquid introduction member includes an inlet into which a liquid is introduced, a filter to filter the liquid introduced from the inlet, a filter chamber in which cross-sectional areas of the flow path increase from the inlet side to the filter side, and a supply flow path to supply the liquid that has passed through the filter to the nozzle side. The filter chamber has at least one guide extending from an inner wall surface of the filter chamber toward the inlet with a space between the guide and the filter, a bottom surface of the guide has a guide surface to guide bubbles which have entered from the inlet, and the guide guides the bubbles into the space by use of the guide surface to spread the bubbles onto the filter toward an outer periphery of the filter.

Abstract: An optical scanner includes a light source including a plurality of light emitting elements, a polygon mirror which deflects light from the light source for scanning a surface of a subject, an optical element arranged between the light source and the polygon mirror, having optical power in a sub scanning direction, a synchronous detector which detects the light deflected by the polygon mirror for synchronous detection and generates a signal for controlling a timing at which the scanning of the surface is started, and a fixing element which secures one end of the optical element. The light emitting elements of the light source are aligned with a certain tilt angle relative to the sub scanning direction. Light from one of the light emitting elements disposed closest to the fixing element in a main scanning direction is used for synchronous detection.

Abstract: A drying device includes a cooling unit, a gas outward guide unit, a gas inward guide unit, a gas supply unit, and a gas exhaust unit. The cooling unit feeds cooling wind toward a part near a heat source. The gas outward guide unit guides gas outwardly from the part near the heat source. The gas inward guide unit guides the outwardly-guided gas inwardly into the drying chamber. The gas supply unit supplies the inwardly-guided gas in the drying chamber to a neighborhood of an outer peripheral surface of the heat roller. The gas exhaust unit releases gas from a surrounding of the heat roller to the outside of a printing apparatus. Thus, high-temperature gas with heat absorbed from the part near the heat source is fed to the surrounding of the heat roller. This reduces humidity increase in the surrounding of the heat roller and reduces temperature drop of the heat roller, compared to feeding gas at ordinary temperature. Further, diffusion of the high-temperature gas in the printing apparatus is prevented.

Abstract: A control device of a printing execution mechanism executing: first control processing including: conveying a sheet to a first position at which the sheet is held by an upstream holding member of the conveyance mechanism, is not held by a downstream holding member of the conveyance mechanism, and a downstream end of the sheet is located between the upstream and downstream holding members; and printing on a first surface of the sheet; and second control processing including: conveying the sheet to a second position at which the sheet is held by the upstream holding member, is not held by the downstream holding member, and the downstream end of the sheet is located at a more upstream side than the downstream end of the sheet located at the first position; and printing on a second surface of the sheet.

Abstract: The disclosure discloses a printer including a memory storing computer-executable instructions. In an index value detecting process, pulse count index values are detected. In a remaining amount determining process, first process, second process, third process, and fourth process are executed. In the first process, an Nth determination object value is calculated from an Nth and an N+1th pulse count index values. In the second process, an average value is calculated from a plurality of successive pulse count index values in a range including a latest value that is an Nth pulse count index value when N is an even number or is an (N?1)th pulse count index value when N is an odd number of three or more. In the third process, a remaining amount rank corresponding to the Nth determination object value is determined. In the fourth process, a rank display corresponding to the remaining amount rank is performed.

Abstract: A printhead protection apparatus moves between printheads in a printer between a position where cross-members in a frame block media irregularities from striking the faces of the printheads and a position where the cross-members are retracted between adjacent printheads to enable the faces of the printheads to be wiped. The frame of the apparatus encompasses the printheads and the cross-members connected to the frame move between adjacent printheads.

Abstract: A liquid jetting apparatus includes: a head unit; a cap; a cap lifter moving the cap between a capping position in which the cap makes contact with the head unit and an uncapping position in which the cap is separated from the head unit; a motor; a driven device; a first transmission gear transmitting power of the motor to the cap movement device; a second transmission gear transmitting the power of the motor to the driven device; and a movement gear moving between a position at which the movement gear engages with the first transmission gear and a position at which the movement gear engages with the second transmission gear depending on a rotation direction of the motor. At least one of the first transmission gear and the movement gear is made of a synthetic resin material containing glass fiber.

Abstract: A document feeder for a printer may include an upper part and/or a lower part. The upper part may include a feeding roller arrangement configured to engage with an upper face of a document. The lower part may include a retaining surface. The lower part may further include a sliding element which, in at least an operation mode of the document feeder, may have a portion that projects with respect to the retaining surface for supporting a lower face of the document in such a way that at least a portion of the document is raised with respect to the retaining surface.

Abstract: A thermal head includes a substrate, a heat-generating portion disposed on the substrate, electrodes disposed on the substrate and electrically connected to the heat-generating portion, a driver IC disposed on the substrate and electrically connected to the electrodes, and a covering member covering the driver IC. In plan view, a center line of the driver IC extending in a main scanning direction and a highest position of the covering member are located farther form the heat-generating portion than a center line of the covering member extending in the main 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: A thermal head includes a substrate; a heat generating section disposed on the substrate; an electrode which is disposed on the substrate and is electrically connected to the heat generating section; and a connector including a fixing ping electrically connected to the electrode, a movable pin which holds the substrate between the movable pin and the fixing pin, and a connection pin which connects the fixing pin and the movable pin. The movable pin includes a movable section which is bent or curved and a contact section making contact with the substrate. The movable pin is disposed so as to protrude from the connection pin beyond the fixing pin. The contact section is located closer to a connection pin side than a tip end of the fixing pin.

Abstract: A liquid ejecting apparatus includes (A) a carriage that moves a nozzle ejecting a liquid which is cured by irradiation of an electromagnetic wave in a moving direction, (B) a first irradiation section that is installed on the carriage and irradiates electromagnetic waves on dots formed by landing the liquid which is ejected from the moving nozzle, on a medium, and (C) a second irradiation section that is installed on the carriage and irradiates electromagnetic waves on the dots which are irradiated by the electromagnetic waves from the first irradiation section, in which an irradiance level of the electromagnetic waves from the second irradiation section is different from that of the electromagnetic waves from the first irradiation section.

Abstract: The present invention relates to a printer having the same cover opening/closing direction as the paper cutting direction, and includes: a housing in which a receiving space is formed, on an upper part of which a discharging port through which paper is discharged is formed, and which includes a cover that is openable/closable frontward; a cutting unit that is provided in the receiving space and cuts the paper discharged through the discharging port in the opening/closing direction of the cover; and a discharging unit for discharging the paper from the housing.

Abstract: A method for controlling an inkjet printing system including calculating a pigment concentration of ink ejected by the inkjet printhead relative to an initial pigment concentration of the ink based on a determined height of ink in an ink reservoir and a determined period of time since a last printhead activation. A firing pattern for the inkjet printhead is determined based on the determined height, the determined period of time and the calculated relative pigment concentration to account for settling of ink stored in the ink reservoir.

Abstract: Example embodiments relate to ink level based printing. The level of ink available in a printing device is monitored. If the ink level is at or below a pre-defined threshold, a print job is printed according to a user-defined rule.

Abstract: A printing apparatus is provided, including: a liquid supply tank for storing and supplying ink, where a liquid supply outlet is arranged on a bottom wall of the liquid supply tank; a liquid level measuring device for measuring a height of a liquid level in the liquid supply tank; a regulating device for regulating an air pressure in the liquid supply tank; and a controller, for controlling the regulating device to regulate the air pressure in the liquid supply tank based on the height of the liquid level measured by the liquid level measuring device and maintaining a pressure at the liquid supply outlet of the liquid supply tank.

Abstract: A system, device, and method for managing colors of a color printer by printing color patches on a test sheet of paper associated with a paper type, determining spectral data of the color patches using an inline full width array spectrophotometer of the color printer, determining measurements based on the spectral data, determining that a measurement is equal to or within a range of a measurement associated with an existing paper profile; and printing subsequent sheets of paper associated with the paper type using parameters associated with the existing paper profile.