Abstract: A billing method for a liquid jet device includes, counting a consumed amount of liquid by printing, counting the number of printed sheets, counting a consumed amount of liquid for maintenance of a jet head, calculating a maintenance consumption amount per unit number of sheets, from a maintenance consumption amount consumed in current maintenance, and the number of printed sheets for which printing is performed from previous maintenance to the current maintenance, setting, as a liquid consumption amount, a value obtained by adding the maintenance consumption amount per unit number of sheets, to a print consumption amount consumed in printing for the unit number of sheets, and billing for printing for the same number of sheets as the number of printed sheets performed after the current maintenance, in accordance with the liquid consumption amount.

Abstract: A billing method for a liquid jet device includes, counting a consumed amount of liquid by printing, counting the number of printed sheets, counting a consumed amount of liquid for maintenance of a jet head, calculating a maintenance consumption amount per unit number of sheets, from a maintenance consumption amount consumed in current maintenance, and the number of printed sheets for which printing is performed from previous maintenance to the current maintenance, setting, as a liquid consumption amount, a value obtained by adding the maintenance consumption amount per unit number of sheets, to a print consumption amount consumed in printing for the unit number of sheets, and billing for printing for the same number of sheets as the number of printed sheets performed after the current maintenance, in accordance with the liquid consumption amount.

Abstract: A fluid ejecting apparatus, contains: an ejecting head having a plurality of nozzles for ejecting a fluid and having a laminated structure in which a flow passage plate, in which a passage for the fluid is formed, is provided via an adhesive, in which the adhesive contains an adhesion resin, to which a hydrophilic function agent that gives hydrophilicity to the adhesive is added in a proportion of from 0.25 wt % to 5.0 wt %.

Abstract: The invention provides a liquid ejecting head which is capable of introducing liquid from a liquid storage member to a pressure chamber through a liquid flow channel and discharging the liquid in the pressure chamber from a nozzle opening as liquid drops by an operation of pressure generating means including: a filter chamber in the middle of the liquid flow channel, the filter chamber having a diameter larger than other portions of the liquid flow channel and having a filter disposed therein for filtering the liquid in the liquid flow channel, wherein the filter chamber includes a liquid repellent area having a static contract angle with respect to liquid larger than that of the inner wall on the downstream side of the filter formed on the inner wall in the vicinity of the filter on the upstream side thereof.

Abstract: A print start position is set to an appropriate position, and the time required for printing is shortened. A printing apparatus, which forms a row of dots from a print start position in a scanning direction to print on a medium to be printed, is provided with a sensor that is capable of detecting an edge, in the scanning direction, of the medium to be printed. The printing apparatus stores the result of detecting the edge of another medium to be printed, and, when printing on the medium to be printed, it reads out the stored detection result and determines the print start position based on that detection result.

Abstract: The ink jet type printer is equipped with a recording head for ejecting ink including humectant and water from a nozzle formed on a nozzle forming surface and a cap which can seal the nozzle forming surface of the recording head. Further, the ink jet type printer is equipped with a control section for detecting an amount of the ink discharged into the cap from the nozzle, for calculating an available water amount which is a water amount except water absorbed by humectant in the ink in the cap based on the detected ink amount, and for performing maintenance control for forcibly discharging ink into the cap from the nozzle so that the amount of the ink discharged from the nozzle becomes smaller when the calculated available water amount is large than when small.

Abstract: A print start position is set to an appropriate position, and the time required for printing is shortened. A printing apparatus, which forms a row of dots from a print start position in a scanning direction to print on a medium to be printed, is provided with a sensor that is capable of detecting an edge, in the scanning direction, of the medium to be printed. The printing apparatus stores the result of detecting the edge of another medium to be printed, and, when printing on the medium to be printed, it reads out the stored detection result and determines the print start position based on that detection result.

Abstract: A liquid ejection apparatus including a liquid ejection head having a nozzle, a cleaning mechanism, and a controller. The controller includes a timer device, first memory section, second memory section, power supply, determining section, and tracked time correction section. If determination of the determining section is positive when the power supply is resumed, the tracked time correcting section reads out tracked time information from the second memory section and causes the timer device to start time tracking from the time indicated by the tracked time information that was stored when power supply to the liquid ejection apparatus was stopped. If the controller determines that the difference between the tracked time and the end time indicated by end time information stored in the first memory section is longer than or equal to a predetermined period, the controller operates the cleaning mechanism to carry out the cleaning.

Abstract: A fluid ejecting apparatus, contains: an ejecting head having a plurality of nozzles for ejecting a fluid and having a laminated structure in which a flow passage plate, in which a passage for the fluid is formed, is provided via an adhesive, in which the adhesive contains an adhesion resin, to which a lipophilic function agent that gives lipophilicity to the fluid is added in a proportion of from 0.25 wt % to 5.0 wt %.

Abstract: A print start position is set to an appropriate position, and the time required for printing is shortened. A printing apparatus, which forms a row of dots from a print start position in a scanning direction to print on a medium to be printed, is provided with a sensor that is capable of detecting an edge, in the scanning direction, of the medium to be printed. The printing apparatus stores the result of detecting the edge of another medium to be printed, and, when printing on the medium to be printed, it reads out the stored detection result and determines the print start position based on that detection result.

Abstract: Reliable and quick adjustment of, for example, a print start position is achieved through accurate recognition of the positional relationship between a medium and a reference position used when printing. As regards performing printing by forming dots on a medium using a movable print head, the print head is moved by a first set amount from a reference position used when printing and it prints a first reference pattern on the medium, a position of an edge of the medium on the reference position side in the direction of movement of the print head is detected, and the print head is moved to a position that is apart by a second set amount from the position of the edge that has been detected and it prints a second reference pattern.

Abstract: The invention provides a liquid ejecting head which is capable of introducing liquid from a liquid storage member to a pressure chamber through a liquid flow channel and discharging the liquid in the pressure chamber from a nozzle opening as liquid drops by an operation of pressure generating means including: a filter chamber in the middle of the liquid flow channel, the filter chamber having a diameter larger than other portions of the liquid flow channel and having a filter disposed therein for filtering the liquid in the liquid flow channel, wherein the filter chamber includes a liquid repellent area having a static contract angle with respect to liquid larger than that of the inner wall on the downstream side of the filter formed on the inner wall in the vicinity of the filter on the upstream side thereof.

Abstract: A print start position is set to an appropriate position, and the time required for printing is shortened. A printing apparatus, which forms a row of dots from a print start position in a scanning direction to print on a medium to be printed, is provided with a sensor that is capable of detecting an edge, in the scanning direction, of the medium to be printed. The printing apparatus stores the result of detecting the edge of another medium to be printed, and, when printing on the medium to be printed, it reads out the stored detection result and determines the print start position based on that detection result.

Abstract: A liquid ejection head is caused to eject liquid droplets at a region where no target medium is placed, such that such that a first prescribed number of liquid droplets are flushed from each of the nozzle orifices in the nozzle arrays of the first group, and a second prescribed number of liquid droplets are flushed from each of the nozzle orifices in the nozzle arrays of the second group. At least a part of the first prescribed number of liquid droplets and at least a part of the second prescribed number of liquid droplets are flushed by alternately performing a first unit operation for flushing a third prescribed number of liquid droplets which is smaller than the first prescribed number and a second unit operation for flushing a fourth prescribed number of liquid droplets which is smaller than the second prescribed number.

Abstract: To provide a liquid ejecting apparatus which makes it possible to surely restrain ejection trouble of liquid at liquid ejection start time and a maintenance method thereof. The ink jet type printer is equipped with a recording head for ejecting ink including humectant and water from a nozzle formed on a nozzle forming surface and a cap which can seal the nozzle forming surface of the recording head. Further, the ink jet type printer is equipped with a control section for detecting an amount of the ink discharged into the cap from the nozzle, for calculating an available water amount which is a water amount except water absorbed by humectant in the ink in the cap based on the detected ink amount, and for performing maintenance control for forcibly discharging ink into the cap from the nozzle so that the amount of the ink discharged from the nozzle becomes smaller when the calculated available water amount is large than when small.

Abstract: A liquid ejection apparatus including a liquid ejection head having a nozzle, a cleaning mechanism that performs cleaning of the nozzle by drawing a liquid from inside the nozzle, and a controller that controls operation of the liquid ejection apparatus is provided. The controller includes a timer device that tracks time, a first memory section, a second memory section, a power supply, a determining section, and a tracked time correction section. The first memory section stores an end time at which a previous cycle of the cleaning has ended as end time information. The second memory section stores a tracked time tracked by the timer device as tracked time information. The power supply is charged when a power is supplied to the liquid ejection apparatus and supplies the charged power to the timer device when power supply to the liquid ejection apparatus is stopped. The determining section determines whether time tracking by the timer device is stopped.

Abstract: The present invention provides an ink-jet type recording apparatus that accurately compute the remaining amount of waste liquid, thereby utilizing a waste-liquid absorbing function of the waste liquid absorber at a maximum and prevent the waste liquid from leaking outside the apparatus. The ink-jet type recording apparatus includes a first remaining amount counter for managing a remaining amount A of waste liquid of which an evaporation amount is computed based on time information acquired from a host, a second remaining amount counter for managing a remaining amount B of waste liquid of which an evaporation amount is computed in case where there is not time information from the host, and an overflow deciding unit for accurately deciding the remaining amount of waste liquid by adding A and B when computing the total amount of waste liquid in a waste liquid absorber.

Abstract: A method of operation of a liquid ejecting head, includes: reciprocating the liquid ejecting head in a first direction and a second direction which is an inverse direction of the first direction; ejecting liquid droplets from a plurality of nozzles in the liquid ejecting head while moving the head in the first direction thereby forming first patterns; and ejecting liquid droplets while moving the head in the second direction thereby forming second patterns. Each of the second patterns is adjacent to a first pattern so that the second patterns pair with the first patterns. Widths of the first patterns or the second patterns, or both, in the first direction are different so that each pair has a different correction amounts.

Abstract: A first sheet and a second sheet are prepared. First holes on the first sheet are perforated. The second sheet is laminated on the first sheet so as to cover at least the first holes and to form a laminated body. The filters are punched from the laminated body such that each of the filters comprises the first sheet formed with at least one of the first holes and the second sheet.

Abstract: A print start position is set to an appropriate position, and the time required for printing is shortened. A printing apparatus, which forms a row of dots from a print start position in a scanning direction to print on a medium to be printed, is provided with a sensor that is capable of detecting an edge, in the scanning direction, of the medium to be printed. The printing apparatus stores the result of detecting the edge of another medium to be printed, and, when printing on the medium to be printed, it reads out the stored detection result and determines the print start position based on that detection result.