公开(公告)号：JP2002337355A

公开(公告)日：2002-11-27

申请号：JP2001147881

申请日：2001-05-17

Applicant: SONY CORP

Inventor： CHIBA MASAHIRO ,  NISHI SHOTA ,  ANDO MASATO

IPC: B41J2/175

Abstract: PROBLEM TO BE SOLVED: To prevent the air from coming in an ink supply part and/or an ink supply reception part when an ink tank is set to an ink jet head. SOLUTION: In a method for setting the ink tank 7 for supplying ink to the ink jet head 6 which prints by discharging the ink towards a recording medium such as a recording paper 4 from many formed nozzle holes; an ink 20 present at a leading opening 16a of an ink supply passage 16 formed to the ink supply part 15 set to the ink tank for supplying ink to the ink jet head is brought into a state to project from the opening, and an ink 21 present at a leading opening 19a of an ink supply reception passage 19 set to the ink supply reception part 17 for receiving the supply of ink from the ink tank of the ink jet head is brought into a state to project from the opening. The ink projecting from the leading opening of the ink supply passage and the ink projecting from the leading opening of the ink supply reception part are brought to be close to each other and united. Thereafter, the ink supply is set to the ink supply reception part.

公开(公告)号：JP2002337352A

公开(公告)日：2002-11-27

申请号：JP2001144423

申请日：2001-05-15

Applicant: SONY CORP

Inventor： KIYONO SUSUMU ,  MIURA KAZUHIRO ,  SATO KENICHI ,  CHIBA MASAHIRO ,  NISHI SHOTA ,  ANDO MASATO

IPC: B41J2/175

Abstract: PROBLEM TO BE SOLVED: To surely remove bubbles coming in an ink supply part and/or an ink receive/supply part when an ink tank is set to an ink jet head. SOLUTION: An ink jet recording unit 1 is comprised of the ink tank 3 for supplying ink to the ink jet head 2, and the ink jet head 2 provided with an ink channel 6 as a channel for the ink to be supplied via the ink receive/ supply part 4 for receiving and supplying the ink from the ink tank to the ink jet head, a common channel 7 to be filled with the ink via the ink channel, pressure chambers 8 for discharging the ink, nozzle holes 9 for discharging the ink, and discharge means for discharging the ink from nozzle holes. There is set a bubble discharge passage 10, which branches from an ink receive/supply passage 5 of the ink receive/supply part for discharging bubbles present in the ink to the outside.

公开(公告)号：JP2002240309A

公开(公告)日：2002-08-28

申请号：JP2001045271

申请日：2001-02-21

Applicant: SONY CORP

Inventor： NISHI SHOTA ,  ANDO MASATO ,  HIRASHIMA SHIGEYOSHI ,  HORII SHINICHI ,  TOKUNAGA HIROSHI

IPC: B41J2/165 ,  B41J2/18 ,  B41J2/185

Abstract: PROBLEM TO BE SOLVED: To reduce the size of a printer body by providing a head cap for protecting the ink ejection face with a cleaning member. SOLUTION: The ink jet head comprises a head cap 5 being fixed removably and to move relatively to a print head 4 having an ink ejection face 6 provided with holes for ejecting ink supplied from an ink cartridge 3 and protecting the ink ejection face 6 of the print head 4, and a roller 7 for cleaning the ink ejection face 6 of the print head 4 provided on the print head 4 side of the head cap 5 in the longitudinal direction thereof. According to the arrangement, the size of the printer body can be reduced.

公开(公告)号：JP2002127427A

公开(公告)日：2002-05-08

申请号：JP2001138431

申请日：2001-05-09

Applicant: SONY CORP

Inventor： NAKAMURA ATSUSHI ,  KAYABA SHINJI ,  ANDO MASATO ,  TOKUNAGA HIROSHI ,  HORII SHINICHI

IPC: B41J2/05 ,  B41J2/16

Abstract: PROBLEM TO BE SOLVED: To minimize positional shift between an ink pressurization chamber provided with a heating resistor and an ink ejection nozzle corresponding to the ink pressurization chamber. SOLUTION: The print head comprises a substrate member 6 including at least ink pressurization chambers 9, heating resistors 8 and ink ejection nozzles 3 and constituting the side wall part and one end face of the ink pressurization chambers, a nozzle forming member 2 provided with ink ejection nozzles corresponding to the ink pressurization chambers and constituting the other end face of the ink pressurization chambers, and a head frame 4 supporting the nozzle forming member.

公开(公告)号：JP2002103597A

公开(公告)日：2002-04-09

申请号：JP2001169000

申请日：2001-06-05

Applicant: SONY CORP

Inventor： IKEMOTO YUICHIRO ,  TAKENAKA KAZUYASU ,  ANDO MASATO ,  HORII SHINICHI

IPC: B41J2/01 ,  B41J2/155 ,  B41J2/21

Abstract: PROBLEM TO BE SOLVED: To obtain a printer and a printer head especially applicable to an ink jet line printer in order to prevent deterioration in the quality of print results due to variation of head chips. SOLUTION: When viewed from the feeding direction of a print object, nozzles 31 assigned to head chips 25 are arranged to overlap partially between adjacent head chips 25. Nozzles for a plurality of chips are formed in one nozzle plate on which the head chips are arranged to produce a printer head.

公开(公告)号：JP2001301199A

公开(公告)日：2001-10-30

申请号：JP2000126271

申请日：2000-04-20

Applicant: SONY CORP

Inventor： KAYABA SHINJI ,  NAKAMURA ATSUSHI ,  HIRASHIMA SHIGEYOSHI ,  ANDO MASATO ,  HORII SHINICHI ,  TOKUNAGA HIROSHI

IPC: B41J2/175 ,  B41J2/21

Abstract: PROBLEM TO BE SOLVED: To prevent leakage of ink from the ink ejecting means of a head due to variation in the attitude of the head, especially in a line type head. SOLUTION: The ink jet printer comprises an ink jet head 120, and ink holding containers 122c coupled, respectively, with at least one ink ejecting means 123, 124 in the head ejecting ink of different colors. A plurality of ink holding containers are provided for each ink ejecting mean corresponding to each color of ink and each ink holding container is coupled with each group of a plurality of nozzles 125a arranged in the longitudinal direction of the ink ejecting mean while being divided.

公开(公告)号：JP2001158087A

公开(公告)日：2001-06-12

申请号：JP34366299

申请日：1999-12-02

Applicant: SONY CORP

Inventor： NISHI SHOTA ,  TOKUNAGA HIROSHI ,  HORII SHINICHI ,  ANDO MASATO ,  NAKAMURA ATSUSHI

IPC: B41J2/01 ,  B41J2/13

Abstract: PROBLEM TO BE SOLVED: To provide an ink-jet printer which can print on objects to be printed regardless of a shape and a stiffness of the objects. SOLUTION: The ink-jet printer has transfer means 2 and 3 for transferring the object 17 to be printed in a plane direction, a printing head 9 of a fixed type for nearly simultaneously printing by an almost breadth size of the object 17 in a perpendicular direction to the transfer direction of the object 17, and a control means 35 for controlling the printing head 9 to print synchronously with a transfer velocity of the transfer means 2 and 3.

公开(公告)号：JPH1081018A

公开(公告)日：1998-03-31

申请号：JP23704396

申请日：1996-09-06

Applicant: SONY CORP

Inventor： MURAKAMI TAKAAKI ,  ANDO MASATO ,  KIJIMA KOUICHIROU

IPC: B41J2/05 ,  B41J2/16 ,  B41J2/205

Abstract: PROBLEM TO BE SOLVED: To improve the representation of a gradation, especially on a low concentration side by metering a medium to be metered with the help of a heating element when the medium to be metered is mixed with a discharge medium and the mixture is jetted. SOLUTION: A heat-generating element 11 which consists of a resistor 25 with both ends to which electrodes 23a, 23b are connected, on a heat accumulation layer 21 and a protecting coating 24 formed on the resistor 25 and generates heat through energization to the resistor 25, is installed in a second pressure chamber 9 filled with a metered medium in such a manner that the protecting coating 24 comes into contact with the metered medium in the pressure chamber 9. The heat-generating element 11 has an in-plane temperature distribution on the surface of the element at the time of heat generation. In this heating element 11, the temperature distribution should preferably be formed in the in-plane direction at the time of heat generation by changing the heat generating value of the resistor 25, at its energization, in the in-plane direction. In addition, the thickness of the protecting coating 24 is changed in the in-plane direction of the heating element 11. Alternatively, the thickness of the heat accumulation layer 21 may be changed in the in-plane direction of the heating element 11, so that the in-plane temperature distribution at the time of heat generation is formed.

公开(公告)号：JPH09124982A

公开(公告)日：1997-05-13

申请号：JP28731995

申请日：1995-11-06

Applicant: SONY CORP

Inventor： FUKUDA TOSHIO ,  ANDO MASATO

IPC: B41J2/01 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38

Abstract: PROBLEM TO BE SOLVED: To prepare a diluting liq. for ink jet recording which can maintain wetting and moisture retention of an ink in the vicinity of a nozzle to prevent clogging of the nozzle, can improve the fixation of the ink onto a recording medium and realizes highly stable and reliable ink jet recording by mixing a diluting liq. contg. isoprene glycol with an ink. SOLUTION: An ink contained in an ink vessel 2 is filled into an ink reservoir 22, an ink feed port 111, and an ink flow passage 121 and creates a meniscus Mi at the front end of the ink flow passage 121. A diluting liq., contg. 1 to 50wt.% isoprene glycol, contained in a vessel 3 is filled into a diluting liq. reservoir 32 and a diluting liq. feed port 112 and creates a meniscus Md. An ink drive section 23 is actuated to create an ink droplet in the front end of the meniscus Mi in the diluting liq. feed port 112, and the ink droplet is immediately mixed with the diluting liq. to form a diluted ink. A diluting liq. drive section 33 is actuated to move the diluted ink formed at the diluting liq. feed port 112 toward a nozzle 113 and ejects the diluted ink through the nozzle. The ejected diluted ink is deposited as a spherically ejected ink 6 onto a recording medium.

公开(公告)号：JPH0971039A

公开(公告)日：1997-03-18

申请号：JP4379996

申请日：1996-02-29

Applicant: SONY CORP

Inventor： FUKUDA TOSHIO ,  ITO KENGO ,  ANDO MASATO

IPC: B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  C09D11/00 ,  C09D11/02

Abstract: PROBLEM TO BE SOLVED: To improve the durability, particularly light-decoding fastness of an image, by incorporating a cyanoacrylate compound of a structure represented by a specified formula in a dye receptive layer in a material to be recorded with the dye receptive layer formed on a substrate. SOLUTION: In a material to be recorded with a dye receptive layer formed on a substrate, a cyanoacrylate compound of a structure represented at least by a formula in a dye receptive layer is contained. In the formula, R1 represents CN and R2 represents a straight chain or branched alkyl. As the substrate, one used generally as the substrate for a photographic paper is used, for example, papers such as an ordinary paper and a synthetic paper, or plastic films like polyethylene terephthalate and others, or papers coated with plastic are used. It is preferable to incorporate resin in the dye receptive layer.