Canon Kabushiki Kaisha

Akiko Aichi

Taku Yokozawa

Hiroshi Taira

Kazuhiko Sato

Noboru Kunimine

Toshimitsu Danzuka

Hiroshi Kawafuji

Sae Mogi

Kazuo Suzuki

Masataka Kato

Shin Genta

Kazuki Narumi

Hiroto Kango

Satoshi Azuma

Tomoki Yamamuro

Takeshi Murase

Shingo Nishioka

Hidehiko Kanda

Yuji Konno

Satoshi Wada

Yoshinori Nakajima

Mitsutoshi Nagamura

Hirokazu Yoshikawa

Takao Ogata

Naoko Baba

Naoaki Wada

Hajime Nagai

Kei Yoshizawa

Kenichi Oonuki

Serena Yoshikawa

A printing apparatus including a print head ejecting ink, flowing from a first channel into a pressure chamber, from a nozzle, by driving an ejection energy generating element in the pressure chamber, a circulation pump circulates the ink in a circulation channel including the first channel, the pressure chamber, and a second channel that flows the ink from inside the pressure chamber to the outside, a wiping unit with a cleaning member that wipes an ejection port surface of an ejection port and a winding member that winds the cleaning member, and a control unit controls a cleaning operation in which the wiping unit wipes the ejection port surface. When the cleaning operation is performed after the circulation pump is stopped, the cleaning operation is changed based on an elapsed time from the time the circulation pump stopped driving, and the cleaning operation is controlled based on the elapsed time.

Printing apparatus and a method of controlling a printing apparatus including a control unit controlling a cleaning operation of a wiping unit wiping an ejection port surface

A printing apparatus including a printing unit configured with an ejection port surface for ejecting ink, a wiping unit configured to wipe the ejection port surface using a wiping member by relative movement with the printing unit, an application unit configured to apply a wiping liquid to the wiping member, a detection unit configured to detect the ink on the wiping member, and a control unit configured to cause the printing unit to print a predetermined pattern on a predetermined area of the wiping member and to cause the application unit to apply the wiping liquid, and, then, to cause the detection unit to detect the ink on the predetermined area.

Printing apparatus and control method

An inkjet printing apparatus includes a print head configured to print an image on a printing medium using a printing element configured to eject ink with thermal energy, a scanning unit configured to cause the print head to scan the printing medium, and a control unit configured to control scanning by the scanning unit and image printing by the print head based on an image printing instruction, wherein the control unit performs a control operation including executing a preliminary ejection to eject, from the print head, ink that does not contribute to image printing before an image is printed in one scanning operation, and determining an amount of ink to be ejected in the preliminary ejection based on a difference between a target temperature and a scanning start temperature, which is a temperature of the print head acquired in response to an instruction to start the one scanning operation.

Inkjet printing apparatus, control method therefor, and storage medium

A printing apparatus includes a printing unit configured to print an image on a print medium, an acquiring unit configured to acquire temperature information of the printing unit, and a control unit configured to control the printing unit so as to start relative scanning in a case where a temperature that is indicated by the temperature information has reached a print permission temperature. The print permission temperature in a first print mode whose speed at a time of a constant speed in relative scanning is a first speed is a first temperature. The print permission temperature in a second print mode whose speed at the time of the constant speed is a second speed that is faster than the first speed is a second temperature that is lower than the first temperature.

Printing apparatus, control method, and storage medium

To provide a technology capable of appropriately suppressing deterioration in cutting accuracy of a slitter although the rigidity of a print medium changes, a printing apparatus is equipped with: a first conveyance unit configured to convey a print medium; a printing unit configured to print an image by applying ink to the print medium conveyed by the first conveyance unit; a cutting unit disposed on a downstream side in a conveyance direction in which the print medium is conveyed by the first conveyance unit and configured to cut the print medium, which is conveyed by the first conveyance unit, along the conveyance direction; and a second conveyance unit disposed on the cutting unit, and the printing apparatus includes a correction unit configured to correct a parameter related to conveyance of at least one of the first conveyance unit and the second conveyance unit, based on information about the print medium.

Printing apparatus, control method, and conveyance apparatus

An object is to provide a full-line inkjet printing apparatus and a printing method that can suppress occurrence of image degradation in the case where a conveyance roller conveys a print medium and multipass printing is performed. The maximum conveyance amount in a return route is set to be smaller than a distance between the conveyance roller and a print head.

Inkjet printing apparatus and printing method with conveying print medium in first direction and second direction and with control of nip of conveyance rollers

According to an embodiment of this invention, an apparatus comprises: a detachable inktank containing ink; a subtank containing the ink supplied from the inktank; a printhead configured to discharge the ink supplied from the subtank; an ink supply path connecting the subtank to the printhead; a valve arranged on the ink supply path; a supply unit configured to supply the ink from the inktank to the subtank by repeatedly opening and closing the valve; a suction unit configured to suck the ink from the printhead; and a control unit configured to control, when the inktank is attached, the supply unit to operate for a predetermined number of times to supply the ink from the inktank to the subtank, and to subsequently control the suction unit to operate to supply the ink from the subtank to the printhead.

Inkjet printing apparatus and ink filling method

An inkjet recording apparatus according to the present disclosure executes a first wiping operation in a case where the count value counted by the count unit is higher than a first threshold value while the recording operation is being performed and execute a second wiping operation when the recording operation completes in a case where the count value counted by the count unit is higher than a second threshold value. The inkjet recording apparatus also executes the second wiping operation when the first wiping operation has been performed while the recording operation is being performed.

Inkjet recording apparatus

An inkjet recording apparatus includes a recording unit, a first ink storage unit, a second ink storage unit, a discharge unit, a first detection unit configured to detect that an amount of the ink stored in the first ink storage unit is below a first predetermined amount, and a second detection unit configured to detect that an amount of the ink stored in the second ink storage unit is below a second predetermined amount. The inkjet recording apparatus further includes a control unit configured to control the discharge operation after the detection by the first detection unit and the detection by the second detection unit based on a detection timing of the first detection unit and a detection timing of the second detection unit.

Inkjet recording apparatus and ink discharge method

When the head temperature Tfinish, which is the head temperature at the time of completion of a preceding scan, is higher than the stable ejection temperature Tstable, the target temperature is made a temperature that is only a temperature value &#x394;T lower than the head temperature Tfinish. On the other hand, when Tfinish, the head temperature at the time of print completion, is lower than the stable ejection temperature Tstable, the target temperature is made a temperature that is only a temperature value &#x394;T higher than the head temperature Tfinish. Because of this it is possible to inhibit head temperature rise in the case where an image with a high print density is printed.

Ink jet printing apparatus and print head temperature control method

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Tokyo, Japan

Akiko Aichi