Abstract: An optoelectronic apparatus is provided, comprising a carrier device that has a longitudinal extent and a transverse extent, wherein the carrier device has a plurality of electrically conductive tracks aligned in parallel with the longitudinal extent, and wherein the carrier device has a plurality of contact chambers aligned in parallel with the transverse extent at an upper side. Each of the contact tracks is electrically contactable in each contact chamber to be able to install at least one optoelectronic transmitter and/or at least one optoelectronic receiver in a variable mounting in the respective chamber.

Abstract: A liquid discharge apparatus includes a liquid discharge head, a scanning device, a conveyance device, a reading device, control circuitry, and a detecting device. The liquid discharge head is configured to discharge liquid to a target object. The scanning device is configured to move the liquid discharge head in a main scanning direction. The conveyance device is configured to convey the target object in a direction perpendicular to the main scanning direction. The reading device is disposed at a predetermined position with respect to the liquid discharge head. The control circuitry is configured to change a detection pattern image for detecting a defective nozzle, in accordance with a feed amount of the target object in the sub-scanning direction. The detecting device is configured to identify a nozzle corresponding to a defective portion of the detection pattern image read by the reading device.

Abstract: A liquid discharging device includes a carriage carrying a head configured to discharge a liquid onto a target, the liquid including an ink, the ink consisting water, an organic solvent, a coloring material, and a plurality of polysiloxane compounds, a driving unit configured to move the carriage and the target relatively to each other, a measuring unit configured to measure the distance between the carriage and the target, an image-capturing unit configured to capture a target image, and a setting unit configured to set a liquid discharging performance of the head based on a measurement result obtained by the measuring unit and the target image obtained by the image-capturing unit.

Abstract: When printing is performed using a thermal head to convert power into heat and to heat an ink sheet laid on paper by the heat, a change in density in a paper carrying direction D1 of an image to be printed in an output region of the paper is calculated using printing data, printing-data-for-correction to indicate an image-for-correction to be printed in a margin printing region of the paper and to cause a change of power required by the thermal head while a combined image including the image and the image-for-correction is printed onto the paper to be smaller than a change of the power required by the thermal head while only the image is printed onto the paper is created, and the ink sheet is heated by the thermal head in accordance with the printing data and the printing-data-for-correction.

Abstract: A liquid discharge apparatus includes a liquid discharge head, a pump, tanks, a supply path, liquid supply regulators, a pressure detector, and control circuitry. The liquid supply regulators are provided for each of the tanks and configured to open and block the supply path to regulate supply of a liquid from the tanks to the liquid discharge head. The pressure detector is disposed between the liquid supply regulators and the liquid discharge head in the supply path. The control circuitry is configured to determine a low level tank among the tanks on basis of opening and closing conditions of the liquid supply regulators in a case where the pressure detector detects that a pressure of the supply path is lower than a predetermined value, and control the liquid supply regulators to supply the liquid from at least one tank of the tanks to the liquid discharge head.

Abstract: A liquid ejecting apparatus includes a discharge portion provided with a piezoelectric element that is driven by a driving signal and a compression chamber that discharges a liquid from a nozzle according to the driving of the piezoelectric element, a detection unit detecting residual vibration occurring in the discharge portion, in a detection period after the piezoelectric element is driven and outputting a residual vibration signal indicating a waveform of the residual vibration, a specification unit specifying an initial time from a start time when the detection period starts to a reference time when a residual vibration signal becomes a signal level of a center of an amplitude after the start time of the detection period, and an estimation unit estimating a viscosity of the liquid in the compression chamber, based on the initial time.

Abstract: A liquid ejecting apparatus includes a liquid ejecting portion that performs printing by ejecting a liquid to a medium from a plurality of nozzles, a first mounting portion that is configured to mount a first liquid container that contains the liquid, a second mounting portion that is configured to mount a second liquid container having a liquid containing amount smaller than a liquid containing amount of the first liquid container, a detecting portion that detects a remaining amount of the liquid contained in the first liquid container mounted in the first mounting portion, and a control portion that calculates a remaining amount of the liquid contained in the second liquid container, based on a standard value representing an amount of the liquid contained in the second liquid container and a standard value representing an ejection amount of the liquid ejected from the liquid ejecting portion.

Abstract: An image data processing method for estimating an ink consumption amount includes: an image data compression step of compressing image data after RIP processing by run-length encoding; and an ink consumption amount estimation step of calculating a predicted ink consumption amount when printing based on image data is performed by an inkjet printing device based on information on the number of occurrences for each gradation value obtained when run-length encoding is applied to image data and information on an ink consumption amount for each gradation value held in an ink consumption amount table prepared in advance.

Abstract: A printing apparatus is provided that effectively prevents the risk of ink bleeding so as to obtain a high-quality print result. The printing apparatus includes an inkjet head that ejects droplets of ink using inkjet technique so as to adhere the ink to the medium, and an ultraviolet light source that radiates ultraviolet light. The ink contains a colorant, an ultraviolet absorbent, a resin, and an aqueous solvent that emulsifies or suspends the resin. The ultraviolet light source irradiates the ink adhered to the medium with ultraviolet light to heat the ink to a temperature lower than a boiling point of the ink and high enough to prevent the ink from bleeding, so that the aqueous solvent is at least in part volatilized and removed from the ink.

Abstract: An inkjet printer includes a printer body and an ink container provided in the printer body. The ink container includes an ink containing portion, a frame portion and a cover portion. A top portion of the ink containing portion includes a port. The cover portion is pivotally connected to the frame portion and pivotable between an opened position, in which the port is exposed, and a closed position, in which the cover portion covers the port, with respect to the frame portion. The cover portion includes a sealing member provided corresponding to the port on an opposing surface of the cover portion. When the cover portion is in the closed position, the sealing member seals the port, and when the cover portion is in the opened position, the sealing member is separated from the port.

Abstract: A recording head in an inkjet recording apparatus forms an image on paper using ink. A first sheet of paper has first and second sides. A second sheet of paper has third and fourth sides. The recording head forms a first image and a first mark image on the first side based on first image data, and then a second image and a second mark image on the second side based on second image data. The first mark image represents a first reference location in a first rectangular region in which the first image is to be formed. The second mark image represents a second reference location in a second rectangular region in which the second image is to be formed. A controller determines an enlargement ratio of the second image to be formed on the fourth side based on a discrepancy between the first and second reference locations.

Abstract: A method of detecting printing fluid mixing is provided. A test pattern for at least one printing fluid is printed with a printing device. The test pattern for the at least one printing fluid is scanned with a scanning device. Colorimetric data of the test pattern for the at least one printing fluid are obtained. Metric values are determined from the colorimetric data. A statistical analysis is performed on the determined metric values. Based on the statistical analysis, it is determined whether printing fluid mixing has occurred and where printing fluid mixing has occurred.

Abstract: A liquid ejecting apparatus includes: a liquid ejecting head configured to eject liquid contained in a liquid container; a display portion configured to display information; a remaining amount detection portion configured to detect that a remaining amount of the liquid contained in the liquid container becomes less than a threshold value; and a control portion configured to control display of the display portion, in which the control portion causes the display portion to display a calculation remaining amount calculated based on an initial amount of storage of the liquid contained in the liquid container, a total discharge amount of the liquid discharged from the liquid ejecting head, and a correction amount corresponding to a use environment.

Abstract: A mark mitigating device for a printing device has a protector sheet to cover ribs of a printer platen of the printer device to prevent the ribs from causing marks on print media. The mark mitigating device further has a fixing system to fixate the mark mitigating device relative to the printer platen. The protector sheet has an opening to pass through vacuum applied by the printer platen to attract print media.

Abstract: A system and method for noise management for printers includes a processor that retrieves temporal data indicative of a current day or time. A print job is received via a network interface. The processor determines a relative noise level associated with printing of the print job and modifies a printing operation of an electronic document associated with a received print job in accordance with a determined, relative noise level and retrieved temporal data.

Abstract: An inkjet recording apparatus includes: a tank having an ink chamber; a recording head; a memory; a display; an operation interface; a power switching section; and a controller. The power switching section is configured to be switched between a first state where an electric power is supplied to the recording head and the display and a second state where supply of an electric power to the recording head and the display is interrupted. After the power switching section is switched from the second state to the first state, the controller executes a query process to: display a query screen inquiring whether the ink chamber has been refilled with ink; and receive one of a first operation and a second operation. In response to receiving the first operation indicating that ink chamber has been refilled with ink, the controller executes an initialization process to initialize a count value.

Abstract: A terminal management apparatus includes a radio wave intensity information obtaining unit that obtains radio wave intensity information indicating intensity of radio waves transmitted from a terminal device being managed; a radio wave intensity examination unit that examines a change in intensity of radio waves transmitted from the terminal device, on the basis of the obtained radio wave intensity information; an arrangement information obtaining unit that obtains arrangement information of an item installed indoors; a terminal information holding unit that holds information on the terminal device; and a disturbance determination unit that determines presence and type of radio disturbance, on the basis of a pattern of the change in intensity of radio waves detected by the radio wave intensity examination unit, the arrangement information obtained by the arrangement information obtaining unit, and the information on the terminal device held by the terminal information holding unit.

Abstract: A printing apparatus has an array of printing elements, a unit for conveying a print medium in a direction intersecting with the array direction, a unit for setting the conveying speed, a unit for adjusting a print position of the print head in the array direction, a unit for adjusting an inclination of a print position of the print head with respect to the conveying direction and for dividing the array of the printing elements into blocks and shift image data in the conveying direction in each divided block, and a unit for changing the division positions of the blocks to positions shifted by an equal amount in a direction opposite to the adjustment in the array direction. A printing control apparatus acquires a maximum concurrent drive number in the printing elements based on image data. The conveying speed is set based on the maximum concurrent drive number.

Abstract: One embodiment relates to a liquid discharge head substrate including at least one heat generating resistive element, a first insulating layer covering the heat generating resistive element, a conductive layer disposed on the first insulating layer and overlapping the heat generating resistive element with the first insulating layer interposed therebetween in a plan view with respect to an upper surface of the heat generating resistive element, and a second insulating layer covering an edge of the conductive layer. The edge of the conductive layer has a tapered shape.

Abstract: A test circuit to determine the capacitance of an actuator element in an actuator element array, wherein the test circuit comprises: a controller; a source to generate test inputs; measurement circuitry to measure one or more test values on a test path between the test circuit and the actuator element; wherein the controller is configured to, for a test period: control a first switch associated with the actuator element to connect the actuator element to the test path; control the source to generate a first test input; and determine a total capacitance of the actuator element from a first test value generated in response to the first test input; and determine the capacitance of the actuator element (CACT) from the total capacitance (CPAR+CACT).

Abstract: An individual identifying device includes a generation unit and an imaging unit. The generation unit generates a pattern on an object. The imaging unit acquires an image of the pattern after the pattern is stabilized, in conjunction with generation of the pattern by the generation unit.

Abstract: A printing material container is detachably attachable to a printing apparatus having a plurality of apparatus-side terminals. The printing material container comprises a first device, a second device, and a terminal group that includes a plurality of first terminals, at least one second terminal and at least one third terminal. The plurality of first terminals are connected to the first device and respectively include a first contact portion for contacting a corresponding terminal among the plurality of apparatus-side terminals. The at least one second terminal is connected to the second device and includes a second contact portion for contacting a corresponding terminal among the plurality of apparatus-side terminals. The at least one third terminal is for the detection of shorting between the at least one second terminal and the at least one third terminal and includes a third contact portion for contacting a corresponding terminal among the plurality of apparatus-side terminals.

Abstract: In an example, an apparatus is described that a fluid ejection device to dispense fluid. A local service controller controls dispensing of the fluid by the fluid ejection device under a direction of a fluid ejection controller. The local service controller also initiates, autonomously of the fluid ejection controller, capping of the fluid ejection device in response to the detection of a failure condition by the local service controller. Capping mechanics are provided to cap the fluid ejection device under the direction of the local service controller.

Abstract: A liquid ejection apparatus includes a plurality of liquid ejection head units that eject liquid onto a conveyed object at different positions along a conveying path; a first support member and a second support member that are respectively provided at an upstream side and a downstream side of a landing position of liquid ejected by a corresponding liquid ejection head unit; a first detection unit that is installed between the first support member and the second support member and is configured to detect a position of the conveyed object in a direction orthogonal to a conveying direction of the conveyed object; a second detection unit that is installed upstream of the first detection unit; and a movement control unit that moves each liquid ejection head unit based on a plurality of detection results output by the first detection unit and/or the second detection unit.

Abstract: A duplex printing system and method of configuring the same are described. In examples, an image, such as a test pattern, on one side of a print substrate is printed to be out of phase with an image, such as a test pattern, on the other side of the print substrate. This is achieved by adjusting a configuration of a print buffer that is located between first and second print engines of the duplex printing system. In particular examples, a length of a web within the print buffer is controlled such that the images are out of phase.

Abstract: A print control apparatus capable of communicating with a printing apparatus, including a sheet holding unit in which a sheet to be used for printing is held, for printing an image on the sheet held in the sheet holding unit includes storage configured to store a type of a sheet, an image, and a setting value of the printing apparatus in association with each other, selects a type of a sheet to be used for printing by the printing apparatus, selects an image to be printed by the printing apparatus, and sets the setting value stored in the storage in association with the selected type of the sheet and the selected image.

Abstract: A liquid collection device includes: a suction tank configured to suck and collect liquid accumulated in a liquid reservoir; a suction passage connecting the liquid reservoir and an inlet opened in a lower portion of the suction tank to each other; a suctioner configured to generate a negative pressure in the suction tank and suck the liquid from the liquid reservoir into the suction tank via the suction passage by using the generated negative pressure; and a controller configured to control the suctioner to terminate suction of the liquid into the suction tank upon continuance of a state where a pressure in the suction tank is equal to or greater than a threshold for a prescribed time or more after start of the suction.

Abstract: Devices include one or more inkjet printheads, a reusable jetting sheet that is adjacent to nozzles of the printheads, support structures (e.g., drive rollers) contacting the sheet, and a cleaning station contacting the sheet. The reusable jetting sheet includes an opening, that is at least as large as the sets of nozzles, and a jetting area spaced from the opening. The support structures are adapted to move the reusable jetting sheet relative to the sets of nozzles. The inkjet printheads are adapted to eject ink from at least some of the nozzles, through the opening, to print media when the opening is positioned adjacent to the sets of nozzles, to print on print media. The inkjet printhead is further adapted to eject ink from at least some of the nozzles to the jetting area when the jetting area is positioned adjacent to the sets of nozzles to perform maintenance jetting.

Abstract: A liquid ejecting apparatus includes a generation unit that generates a driving signal, a discharge portion including a piezoelectric element that is driven by the driving signal, and a detection unit that detects residual vibration occurring in the discharge portion, in a detection period after a driving period during which the piezoelectric element is driven by the driving signal, in which the generation unit maintains a potential of the driving signal at a first potential in a first period, maintains the potential of the driving signal at a second potential in a second period, maintains the potential of the driving signal at a third potential in a third period, and maintains the potential of the driving signal at a detection potential in the detection period, the first potential is a potential between the second potential and the third potential, and the detection potential is a potential between the first potential and the second potential.

Abstract: A liquid ejecting apparatus is configured to record a pattern group including a first pattern and a second pattern by driving a moving mechanism to perform a relative movement between a head and a recording medium and by driving the head to eject liquid towards the recording medium. The first pattern and the second pattern are recorded at different timings. Further, recording of the second pattern is performed when a temperature of the liquid in the head is temperature T2 which is different, by a target temperature difference or more, from temperature T1 which is a temperature of the liquid when the first pattern is recorded.

Abstract: A drop-detection device detects a drop that escapes from a metering valve. The drop-detection device includes a light guide with first and second light-guiding elements that are arranged opposite each other at an intermediate space. A drop trajectory runs through the intermediate space such that a light beam sent out by the first light-guiding element crosses the drop trajectory and is subsequently coupled into the second light-guiding element. In addition, the drop-detection device includes a light-signal generation device that couples a pulsed light beam with a carrier frequency into the first light-guiding element. Furthermore, the drop-detection device also has a light evaluation device for evaluating the light beam coupled into the second light-guiding element to determine if a drop has been dispensed by the metering valve. A method of detecting a drop is also described.

Abstract: A liquid ejecting apparatus includes: a support that extends in a second direction intersecting a first direction in which a printing medium is transported; a carriage that is connected to the support and is movable in the second direction; an ejector that is provided in the carriage and ejects a liquid to the printing medium; and a detector that is provided in the carriage and detects a change in posture of the carriage. In a case where the liquid is not ejected from the ejector, the carriage moves in the second direction, and the detector detects the change in posture of the carriage. The detector outputs posture-change amount information based on the change in posture of the carriage. Ejection of the liquid is corrected based on the posture-change amount information.

Abstract: In some examples, a control apparatus for a fluid ejection device includes a plurality of selectors controllable by an input control signal to produce signals for selecting respective nozzles of the fluid ejection device, where a first selector is responsive to the input control signal propagated over a first signal path to turn on a device in the first selector, and a second selector is responsive to the input control signal to perform a different task. A memory encoder is to select a memory location in the memory, the memory encoder responsive to the input control signal propagated over a second signal path to turn on a device in the memory encoder, where signal loading of the second signal path is isolated from signal loading of the first signal path.

Abstract: A method for reducing the effect of defective printing nozzles in a multicolor printing process on an inkjet printing machine. A computer creates a color transformation table that, for every process color of the inkjet printing machine, includes a replacement combination of the respective other process colors with a minimum color distance to the process color in question. The color transformation table is used to compensate for a defective printing nozzle. The color transformation table is created by printing and measuring a test chart with all process colors and interpolated by the computer. The color transformation table is then optimized to avoid undesired transitions between supporting points of the color transformation table and the resultant color transformation table accordingly contains process color combinations with minimum sensitivity to defective printing nozzles and the optimized table is used to carry out the multicolor printing operation on the inkjet printing machine.

Abstract: In one example of the disclosure, a first transfer of ink is made from a photoconductor to a blanket in contact with the photoconductor. The blanket is to cycle along a path. The first transfer occurs at a first arc of the blanket path. A second transfer of the ink is made from the blanket to a media in contact with the blanket. The second transfer occurs at a second arc of the blanket path. A heat source located adjacent to a third arc of the blanket path is utilized to heat an external surface of the blanket. The heating is to occur following the second transfer of the ink.

Abstract: Provided is a color compensation device of an electronic device including a first color converter, a parameter generator, an operator, and a second color converter. The first color converter receives an image signal, converts the image signal into initial tristimulus values based on a basic look-up table, and generates a conversion look-up table using the basic look-up table. The parameter generator extracts 2N number of representative parameters from the conversion look-up table and generates N number of compensation parameters on the basis of the 2N number of representative parameters. N is a natural number. The operator generates compensated tristimulus values at each gray scale using the N number of compensation parameters, generates a compensation look-up table, and converts the initial tristimulus values into the compensated tristimulus values using the compensation look-up table. The second color converter converts the compensated tristimulus values into a compensated image signal.

Abstract: A liquid discharge apparatus includes a rotator, a liquid discharger, a sheet-material position detector, a first signal output device, a second signal output device, and circuitry. The rotator carries a sheet material on a circumferential surface and conveys the sheet material. The liquid discharger discharges liquid onto the sheet material. The sheet-material position detector detects a position of the sheet material. The first signal output device outputs a first signal corresponding to a rotation amount of the rotator. The second signal output device outputs a second signal correlated with a movement amount of the sheet material on the circumferential surface of the rotator. The circuitry determines a discharge start timing of the liquid discharger from a detection result of the sheet-material position detector and the first signal, and generates a discharge timing of the liquid discharger from the second signal.

Abstract: A non-transitory computer-readable medium having a computer program for causing a terminal apparatus to perform a first display processing of displaying an execution instruction object, a reception processing of receiving status information from an image processing apparatus in response to detecting execution of a first operation on a position of the execution instruction object, a first determination processing of determining whether the image processing apparatus can execute an operation for image data on the basis of the received status information in response to detecting that the first operation on the position of the execution instruction object has changed to a second operation, and an execution instruction processing of transmitting execution instruction information for instructing execution of the operation to the image processing apparatus in response to it being determined in the first determination processing that the operation can be executed.

Abstract: There is provided a recording apparatus that start conveying a subsequent sheet in a state where an overlap amount of a preceding sheet and the subsequent sheet is not determined, acquires the overlap amount after the sheet conveyance is started, acquires distance information about a distance between a trailing edge of an image of a last line on the preceding sheet and a leading edge of an image on the subsequent sheet based on recording data and the overlap amount, and generates recording data for image forming of recording data of the last line on the preceding sheet and recording data of a first line on the subsequent sheet in the same scan by a recording unit, based on the acquired distance information.

Abstract: A printing system includes a printing apparatus including a carriage capable of loading a plurality of types of print heads, and a connected host device. In a case where the print head loaded on the carriage corresponds to a first head configuration, the host device is provided with a first printing service using a first identifier to identify the printing apparatus, and in a case where the print head loaded on the carriage corresponds to a second head configuration being different from the first head configuration, the host device is provided with a second printing service using a second identifier being different from the first identifier. The host device obtains printability information indicating a printable condition with the printing apparatus, sets the printable condition with the printing apparatus based on the obtained printability information, and transmits a printing job based on the set condition to the printing apparatus.

Abstract: An ink jet recording apparatus includes an ink discharger provided with a plurality of nozzles which discharge ink; and a processor. The processor discharges ink onto a recording medium from the plurality of nozzles of the ink discharger, and uses the ink discharger to record on the recording medium a composite test image including a halftone image with a predetermined density and a defective nozzle specifying image which specifies a defective nozzle in which a defect in ink discharge is occurring. The processor obtains information regarding the defect in the ink discharge from the nozzle based on a density distribution of the halftone image read from read data of the composite test image and specifies a defective nozzle based on the above information and a portion in the defective nozzle specifying image of the read data.

Abstract: A printing apparatus, which uses a printhead including a circuit configured to inspect an ink discharge status of a selected nozzle using a temperature detection element, causes the printhead to inspect the ink discharge status by changing a threshold value for judging a detection result of the temperature detection element, in order to judge the ink discharge status in a state in which a heater in the selected nozzle is driven by each of a first pulse and a second pulse whose waveform is different from that of the first pulse, obtains first information about a change point where a judgment result obtained by the first pulse changes, and second information about a change point where a judgment result obtained by the second pulse changes, and sets the threshold value based on the first and second information.

Abstract: A control method in a printing apparatus includes printing, by a printing unit, an adjustment image for adjusting a printing position on a sheet, conveying, by a conveying unit, the sheet on which the adjustment image is printed, reading, by a reading unit, an image to generate image data, the reading unit being executable to perform reading by a first reading method for reading an image of a sheet without conveying the sheet or a second reading method for reading the image of the sheet while conveying the sheet, and determining, based on that a type of the sheet on which the adjustment image is to be printed is a specific type, to read the adjustment image by the first reading method.

Abstract: Misalignments of a 3d printing device may be detected by providing a reference pattern in a print zone of the 3d printing device, wherein the reference pattern comprises a plurality of reference marks, printing a test pattern on the reference pattern by means of the 3d printing device, and comparing the test pattern with the reference marks.

Abstract: A conveyance device includes a conveyor to convey a conveyed object, a head unit to perform an operation on the conveyed object being conveyed at a first conveyance speed, a sensor to acquire data of the conveyed object, a gauge to output a measured travel amount of the conveyed object, and a processor. The processor includes a calculator to calculate a detection result including at least one of a position, a speed of travel, and a calculated travel amount of the conveyed object based on the data acquired by the sensor; and an adjusting unit to adjust a timing of acquisition of the data acquired while the conveyed object is conveyed at the first conveyance speed, based on the detection result and the measured travel amount of the conveyed object being conveyed at a second conveyance speed lower than the first conveyance speed.

Abstract: A management system according to the aspect of the embodiments performs expiration date management of consumables delivered for a forming apparatus to be managed, based on an expiration date for consumption after manufacturing of each consumable and an expiration date for consumption after opening of each consumable. The management system then automatically makes arrangement for collecting expired consumables.

Abstract: Disclosed is a liquid ejecting apparatus including a liquid ejecting portion provided with a liquid ejecting head and configured to move the liquid ejecting head in a head moving area in a scanning direction, and the head moving area includes a landing area in which the liquid is ejected from the nozzle and landed onto a medium that is placed in a placement portion, an receiving area in which a liquid receiving portion is provided, and a maintenance area in which a maintenance cap is provided, and the receiving area is disposed at a position farther from the landing area than from the maintenance area in the scanning direction.

Abstract: To generate a dot pattern whose deterioration of a feeling of granularity, density unevenness, and streaks are unlikely to be recognized visually by more effectively suppressing a change of an overlap of ink droplets on a printing medium. Halftone image data representing a dot pattern of each of two or more kinds of dot different in density reproduction is acquired. Then, in a case where there is a possibility that the contact state between dots changes due to a landed-dot shift of ink in a plurality of specific dots on a condition that dots are formed in accordance with a dot pattern in the halftone image data, the plurality of specific dots is replaced with dots of another kind whose number is less than or equal to that of the plurality of specific dots.

Abstract: A liquid cartridge is insertable into an attachment portion of a printing device in an insertion direction and attached thereto in an upright posture. The liquid cartridge includes: a housing defining a liquid chamber; a substrate; a contact; and a memory electrically connected to the contact. The substrate in the upright posture defines a sloped surface facing upward and sloping relative to a first imaginary plane extending in the insertion direction and a widthwise direction orthogonal to the insertion direction and a gravitational direction. The contact is formed on the sloped surface. An acute angle formed between the sloped surface and the first imaginary plane is greater than an acute angle formed between the first imaginary plane and a second imaginary plane passing through: a contact point between the contact and a contact of the device; and a lower end of a wall constituting a holder of the attachment portion.

Abstract: A liquid ejection apparatus includes: a cartridge including a first storage chamber storing liquid; a tank including a second storage chamber storing liquid; at least one nozzle; a detecting portion detecting whether a level of the liquid in the second storage chamber becomes equal to a prescribed position; a notifying portion; and a controller configured to perform: when the level of the liquid in the second storage chamber becomes equal to the prescribed position, calculating first and second volumes; and when the second volume is greater than the first volume, notify that the level of the liquid in the second storage chamber becomes equal to the prescribed position. The first volume is an amount of the liquid in the first storage chamber above the level of the second storage chamber at a time when the level of the liquid in the second storage chamber becomes equal to the prescribed position.