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公开(公告)号：CA2080707A1
公开(公告)日：1993-04-22
申请号：CA2080707
申请日：1992-10-16
Applicant: CANON KK
Inventor： NAGOSHI SHIGEYASU , HIRABAYASHI HIROMITSU , AKIYAMA YUJI , SUGIMOTO HITOSHI , MATSUBARA MIYUKI
Abstract: The mounting positions of a plurality of recording heads (1Y, 1M, 1C, 1K) are set to be variable with respect to a paper feed direction, so that a post-ejection recording head (1Y) is mounted at the downstream side in the paper feed direction as compared to a pre-ejection recording head, thereby preventing generation of banding in color ink jet recording, and improving image quality.
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公开(公告)号：CA2074875A1
公开(公告)日：1993-02-03
申请号：CA2074875
申请日：1992-07-29
Applicant: CANON KK
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公开(公告)号：CA2040148A1
公开(公告)日：1991-10-12
申请号：CA2040148
申请日：1991-04-10
Applicant: CANON KK
Inventor： YANO KENTARO , KOITABASHI NORIBUMI , OTSUKA NAOJI , MATSUBARA MIYUKI , SUGIMOTO HITOSHI , ARAI ATSUSHI , TAJIKA HIROSHI , HIRABAYASHI HIROMITSU
Abstract: A recording apparatus having a recording head (5) provided with plural ink discharging outlets for discharging ink includes a detector for detecting temperature distribution in the recording head (5) relating to recording operation of the recording head (5); and a controller (20) responsive to an output of the detector to control a recording speed of the recording head (5).
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64.发明专利
公开(公告)号：CA2040120A1
公开(公告)日：1991-10-12
申请号：CA2040120
申请日：1991-04-10
Applicant: CANON KK
Inventor： KOITABASHI NORIFUMI , SUGIMOTO HITOSHI , TAJIKA HIROSHI , MATSUBARA MIYUKI , ARAI ATSUSHI
IPC: B41J2/165
Abstract: This invention provides a novel and effective recovery method and device for an ink jet recording head, which method or device has the step of or means for carrying out substantially at a time a condition for driving discharge energy generating elements to discharge ink from the discharge ports of the head and a condition for effecting the forced discharge of the ink by a suction or pressing pump. According to the present invention, the pump itself can be made compact and moreover, the recovery process of all the discharge ports can be carried out reliably within a short time.
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公开(公告)号：DE60230826D1
公开(公告)日：2009-03-05
申请号：DE60230826
申请日：2002-02-06
Applicant: CANON KK
Inventor： NISHIKORI HITOSHI , OTSUKA NAOJI , SUGIMOTO HITOSHI , TAKAHASHI KIICHIRO , IWASAKI OSAMU , TESHIGAWARA MINORU , YAZAWA TAKESHI , CHIKUMA TOSHIYUKI
Abstract: An ink jet printing apparatus comprising print means having a polarity of ejection outlet arrays each having a plurality of ejection outlets, arranged in a predetermined direction, for ejecting ink, scanning means for scanningly moving the print means relative to the print medium in a main scan direction which is different from the predetermined direction during a printing operation, and means for feeding the print medium relative to the print means in a direction which is different from the main scan direction, wherein an image is formed on the print medium while repeating scanning operation of the scanning means and feeding operation by the feeding means, includes information obtain means for obtaining image information corresponding to at least one of the ejection outlet arrays with respect to a predetermined area of image data to be printed; and selecting means for selecting such a portion in the at least one of ejection outlet arrays as is to effect printing for the image data in the predetermined area, on the basis of the information obtained by the information obtaining means upon image formations.
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Patent Agency Ranking
公开(公告)号：DE69334034T2
公开(公告)日：2007-01-18
申请号：DE69334034
申请日：1993-07-22
Applicant: CANON KK
Inventor： KOITABASHI NORIBUMI , IKEDA MASAMI , SUGAMA SADAYUKI , ASAI NAOHITO , HIRABAYASHI HIROMITSU , ABE TSUTOMU , SATO HIROSHI , NAGOSHI SHIGEYASU , SHIMIZU EIICHIRO , HIGUMA MASAHIKO , AKIYAMA YUJI , SUGIMOTO HITOSHI , MATSUBARA MIYUKI , SATO SHINICHI , GOTOH FUMIHIRO , UETSUKI MASAYA
Abstract: An ink containing apparatus for containing ink includes a negative pressure producing material; a first container for containing the negative pressure producing material, the first container having an air vent and a supply port for supplying the ink out; a second container for containing ink; a communication part for communication between bottom portions of the first and second containers; and ribs for introducing ambient air adjacent the air vent for introducing air into the communication part.
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公开(公告)号：DE69334027D1
公开(公告)日：2006-07-06
申请号：DE69334027
申请日：1993-07-22
Applicant: CANON KK
Inventor： KOITABASHI NORIBUMI , IKEDA MASAMI , SUGAMA SADAYUKI , ASAI NAOHITO , HIRABAYASHI HIROMITSU , ABE TSUTOMU , SATO HIROSHI , NAGOSHI SHIGEYASU , SHIMIZU EIICHIRO , HIGUMA MASAHIKO , AKIYAMA YUJI , SUGIMOTO HITOSHI , MATSUBARA MIYUKI , SATO SHINICHI , GOTOH FUMIHIRO , UETSUKI MASAYA
Abstract: An ink containing apparatus for containing ink includes a negative pressure producing material; a first container for containing the negative pressure producing material, the first container having an air vent and a supply port for supplying the ink out; a second container for containing ink; a communication part for communication between bottom portions of the first and second containers; and ribs for introducing ambient air adjacent the air vent for introducing air into the communication part.
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公开(公告)号：DE60201629T2
公开(公告)日：2005-10-27
申请号：DE60201629
申请日：2002-06-17
Applicant: CANON KK
Inventor： OTSUKA NAOJI , INOUE HIROYUKI , YOSHIDA MASAHITO , NOJIMA TAKASHI , SUGIMOTO HITOSHI , INAMURA SHUSUKE , TANAAMI YASUFUMI , IWASAKI TAKESHI , SATO NORIKO , HIRAI YASUYUKI , YAZAWA TAKESHI
Abstract: For eliminating waste of ink and achieving high charging efficiency with a reduced charging time where a printing head is equipped with a second tank for reserving a predetermined amount of ink and a supply system is configured to supply ink from a first tank (107) to the second tank intermittently, the second tank (304) having a variable internal volume is provided, and the internal volume is varied to cause the second tank itself functions as an actuator for charging ink and performing a venting process. Specifically, the internal volume is forcibly reduced to cause a reverse flow of a gas residing in the second tank along with ink into the first tank (107), which makes it possible to generation of waste ink that is released to the outside. A normal charging operation can be completed simply by causing a change in the opposite direction (the direction of increasing the internal volume).
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公开(公告)号：DE69233216T2
公开(公告)日：2004-07-08
申请号：DE69233216
申请日：1992-07-29
Applicant: CANON KK
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公开(公告)号：AT249705T
公开(公告)日：2003-09-15
申请号：AT93302493
申请日：1993-03-30
Applicant: CANON KK
Inventor： MATSUBARA MIYUKI , HIRABAYASHI HIROMITSU , NAGOSHI SHIGEYASU , KOITABASHI NORIBUMI , SUGIMOTO HITOSHI , GOTOH FUMIHIRO , UETUKI MASAYA
IPC: B41J19/14 , G06K15/10 , H04N1/12 , H04N1/191 , H04N1/50 , H04N1/04 , H04N1/46 , B41J2/21 , H04N1/23 , B41J2/52 , B41J2/51
Abstract: A plurality of recording heads for ejecting inks of different colors are reciprocally moved relative to a recording medium, and printing operations are performed by executing main scans in forward and backward scans of the recording heads. In this case, an area printable in a single main scan is recorded by performing a plurality of main scans using a plurality of thinning patterns in which an m x n pixel group is defined as a unit pixel group, and the pixel groups are arranged at non-neighboring positions, and which have a complementary arrangement relationship therebetween. A high-quality color image free from time difference nonuniformity, and density nonuniformity caused by, e.g., variations of recording elements is obtained at high speed.
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