Seiko Epson Corporation

Takashi Akase

Koichi Otsuki

Koji Morikoshi

Masaru Takahashi

Hirokazu Nunokawa

Nobuhito Takahashi

Kenji Tsukada

Keiji Matsumoto

Hitoshi Hayakawa

Haruhisa Uezawa

Hideki Okumura

Yusuke Hirasawa

Yasuaki Hirai

Masahiro Kimura

Masato Haga

Kojiro Iizuka

Mitsugu Ota

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.

Liquid jet device and billing method thereof

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 %.

Fluid ejecting apparatus and method for producing the fluid ejecting apparatus using an adhesive containing a hydrophilic function agent

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.

Liquid ejecting head

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.

Liquid ejecting apparatus and maintenance method thereof

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.

Printing apparatus, program, and printing method

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.

Liquid ejection apparatus and method for cleaning liquid ejection apparatus

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.

Printing method, computer-readable medium, printing apparatus, printing system, and pattern for correction

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.

Liquid ejection apparatus and method of controlling the same

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.

Liquid ejecting apparatus

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.

Correcting method, liquid ejecting apparatus, computer program, computer system, and correction pattern

A printing method comprises: ejecting ink from ink ejecting sections provided in/on a movable print head to form dots; performing at least either printing with a first arrangement using inks arranged according to the first arrangement or printing with a second arrangement using inks arranged according to the second arrangement by changing the arrangement of inks supplied to each of the ink ejecting sections; and printing, with one forward and return movement of the print head, a correction pattern for determining a correction amount to be used for printing with the first arrangement and a correction amount to be used for printing with the second arrangement for correcting a misalignment between a position where dots are formed during a forward pass of the print head and a position where dots are formed during a return pass of the print head that occurs during printing with the first and second arrangements.

Printing method, printing apparatus, computer-readable medium, and correction pattern

A cap member ( ) which is brought into contact with a nozzle forming surface of a recording head ( ) to seal up the nozzle forming surface, and a wiping member ( ) which may be brought into sliding contact with the nozzle forming surface of the recording head ( ) are disposed on a cap holder ( ). With progress of a cleaning operation in which ink is placed under a negative pressure, and sucked and discharged from the recording head, a cap retaining member ( ) is moved upward and placed to a set state, whereby blocking the slanting and downward movement of the cap member ( ). Then, the wiping member ( ) located on the cap holder ( ) slides on the nozzle forming surface to wipe the nozzle forming surface. To a flushing operation, the cap retaining member ( ) is moved downward and placed to a reset state. In this state, the wiping member ( ) does not slide on the nozzle forming surface.

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Azumino, Japan

Takashi Akase