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71. 发明专利

JPH03159746A INK JET RECORDER 失效
公开(公告)号：JPH03159746A
公开(公告)日：1991-07-09
申请号：JP29982889
申请日：1989-11-20
申请人： CANON KK
发明人： AICHI TAKAO
IPC分类号： B41J2/01 , B41J29/00
摘要： PURPOSE:To raise a throughput of recording by reducing idle time by a method wherein whether ink of a block in recording is sufficiently fixed or not by natural drying until discharge of paper is ended, is discriminated based on a number of measured blocks and a recording density of each block, and fixing control with a fixing device is performed only for the block which is discriminated not to be sufficiently fixed. CONSTITUTION:A control part 102 inputs a density data showing each block recording density of a recording data of a 1 sheet part from a data transfer device 101 and stores in a RAM 102. A number N of total blocks to be recorded and a number B of high density blocks are recognized from this density data. Total time T1 to be required from start of recording one sheet to discharge of paper is obtained, and natural fixing time T is compared with total time T1. If T

72. 发明专利

JPH0299368A PAPER FEEDER 失效
公开(公告)号：JPH0299368A
公开(公告)日：1990-04-11
申请号：JP25422088
申请日：1988-10-07
申请人： CANON KK
发明人： INOUE HIROYUKI , HASHIMOTO TAMAKI , AICHI TAKAO
IPC分类号： B41J13/02
摘要： PURPOSE:To prevent paper under feeding from being braked or jammed by a paper feed roller by providing a control means for rotating a paper feed roller drive motor until the initialization of the paper feed roller for a paper feed action is completed. CONSTITUTION:When a paper is in a feed waiting state, the paper is fed upstream of a predetermined initial position, i.e., a position of separation claws 12, 13 of a cassette case 11, a feed amount required for feeding the paper into a recorder is reduced, and the resulting small rotating amount of a paper feed roller 22 causes a control ring 253 to fail to reach its initial position. To prevent this trouble, a controller controls a motor 23 so that the paper feed roller 22 can necessarily rotate at least twice. Namely, if a paper feed is completed before the paper feed roller 22 rotate twice, the motor 23 is so controlled as to keep rotating until the control ring 253 returns to the initial position for ensuring that the control ring 253 is always return to the initial position.

73. 发明专利

JPH0299362A RECORDER 失效
公开(公告)号：JPH0299362A
公开(公告)日：1990-04-11
申请号：JP25421688
申请日：1988-10-07
申请人： CANON KK
发明人： HASHIMOTO TAMAKI , SUZUKI TETSUO , AICHI TAKAO
IPC分类号： B41J13/00 , B41J13/036
摘要： PURPOSE:To inhibit a paper feed action when a paper feed is not required by mounting a carriage travel control means for retracting a carriage from a position for engaging with a paper feed trigger means during the carry action by a carry means. CONSTITUTION:When a carriage 6 travels beyond a recording area and a pressing member 36 moves to reach a position for abutting against a locking claw 28, the locking claw 28 rotates to separate a claw part 28A from a locking ring 27 and turn ON a spring clutch 26. In this manner, a cam 24, a separation roller 22, and a pressing roller 23, which rotate integrally with a separation roller shaft 21, are rotated by a drive force transmitted through a separation roller gear 25. One rotation of the separation roller shaft 21 makes the clutch again in ON states. In this construction, when a paper feed is not required, e,g., during an initial action at the time of turning ON a power, a paper feed action can be inhibited.

74. 发明专利

JP2004009440A IMAGE RECORDER AND METHOD OF CONTROLLING RECORDING THEREFOR 审中-公开
公开(公告)号：JP2004009440A
公开(公告)日：2004-01-15
申请号：JP2002164623
申请日：2002-06-05
申请人： CANON KK
发明人： OSHIMA MASATO , GOTOU FUMIHIRO , ONO MITSUHIRO , SUWA TETSUYA , AICHI TAKAO , MASUMOTO KAZUYUKI , HAMAMOTO AKIHIKO , KAWANABE TETSUYA , HIBI MAKOTO
IPC分类号： B41J5/30 , G06F3/12 , H04N1/00 , H04N1/21 , H04N1/41 , H04N5/76 , H04N5/765
摘要： PROBLEM TO BE SOLVED: To enhancing the efficiency of printing because it is necessary to repeatedly request JPEG data corresponding to a part of data which is not stored in a memory to a digital camera and to repeatedly develop the image by receiving and decoding the data. SOLUTION: A PD printer records the JPEG data by receiving it from a DSC. The printer divides a region of a memory into a plurality of blocks and stores the received JPEG data in the memory by each of the blocks and performs the printing by extracting the JPEG data stored in the memory and developing it to the image data. When the printer judges that the JPEG data to be developed is not left in the memory (S3), the printer requests the JPEG data corresponding to at least one block to the DSC within a maximum data transferring rate from the DSC in addition to the JPEG data to be developed (S4). COPYRIGHT: (C)2004,JPO

75. 发明专利

JP2003246120A CONTROL METHOD FOR IMAGE RECORDER AND IMAGE RECORDING SYSTEM 审中-公开
公开(公告)号：JP2003246120A
公开(公告)日：2003-09-02
申请号：JP2002046686
申请日：2002-02-22
申请人： CANON KK
发明人： GOTOU FUMIHIRO , OSHIMA MASATO , HIBI MAKOTO , KAWANABE TETSUYA , HAMAMOTO AKIHIKO , SUWA TETSUYA , AICHI TAKAO , MASUMOTO KAZUYUKI , ONO MITSUHIRO
IPC分类号： B41J29/38 , G06F3/12 , H04N5/76 , H04N5/91
摘要： PROBLEM TO BE SOLVED: To solve a problem that start of print processing is waited until preparation of print is completed in a printer although preparation of print has been completed on the digital camera side. SOLUTION: In the control method of an image recorder for recording an image based on image data from an image data source, conditions of a printer are inquired from a digital camera (S12) prior to delivery of image data, a decision is made whether image data can be printed on the printer or not based on the conditional response to that inquiry (S13), start of preparation for print operation by that printer is designated if image data can be printed on that printer (S15), and preparation for print operation based on that designation is carried out in parallel with processing of image data from the digital camera. COPYRIGHT: (C)2003,JPO

76. 发明专利

JPH11129506A PRINTER SYSTEM AND METHOD THEREFOR 失效
公开(公告)号：JPH11129506A
公开(公告)日：1999-05-18
申请号：JP29592497
申请日：1997-10-28
申请人： CANON KK
发明人： AICHI TAKAO
IPC分类号： B41J2/18 , B41J2/185
摘要： PROBLEM TO BE SOLVED: To reduce waste consumption of a recording agent used in a recorder and to raise a total throughput by providing a means that issues a recovery instruction for instructing execution of a recovery means for a printing element based on a monitoring result of a monitoring means that monitors a printing condition in the recorder. SOLUTION: Printing data to be printed is developed by a data developing section 7 in a data transferring device 1 and it is judged whether or not a time when data is lastly transferred to an ink jet recorder 8 is stored in a work area [A] (4a). After the time is read from the work area [A] and a present time is read from an RTC 5, a difference between the present time and the time stored in the work area [A] is calculated and it is judged whether or not the difference is greater than a predetermined time period. When the difference is equal to or greater than the predetermined time period, a recovery instruction is outputted to the ink jet recorder 8, then the recorder 8 executes a recovery operation for a recording head in accordance with the instruction from the data transmitting device 1.

77. 发明专利

JPH08125873A METHOD AND DEVICE FOR DEVELOPING DATA 失效
公开(公告)号：JPH08125873A
公开(公告)日：1996-05-17
申请号：JP25395394
申请日：1994-10-19
申请人： CANON KK
发明人： HOSAKA TOMONARI , AICHI TAKAO
IPC分类号： H04N1/417 , G06T9/00 , H03M7/46
摘要： PURPOSE: To provide a method and a device for developing data in which picture data can be developed more quickly and efficiently by utilizing the characteristic of normalized data after a predictive function. CONSTITUTION: When the development of the data is started (700), first of all, the leading address of the data is initialized (701). Next, in the case of font data, since one bit of environment us white virtually, it is set (702). When initialization is finished, next, single line developing routine is started (703). By this single line developing routine, one line is developed as collectively as possible by using the property of the normalized data. Here, the number of the lines is counted previously by a counter, etc., and in the case that all the lines are not finished, operation is returned to the single line developing routine again, and when all the lines are finished, the development comes to be completed.

78. 发明专利

JPH0497853A INK JET RECORDER 失效
公开(公告)号：JPH0497853A
公开(公告)日：1992-03-30
申请号：JP21369690
申请日：1990-08-14
申请人： CANON KK
发明人： AICHI TAKAO , YASUZAWA KATSUAKI
IPC分类号： B41J2/175
摘要： PURPOSE:To conduct a no-load delivery of a recording head in an efficient manner to improve a throughput by actuating a no-load delivery means always at optimum no-load delivery intervals in accordance with the environment of the recording head. CONSTITUTION:A no-load delivery of a recording head 1 is conducted under the following conditions : a no-load delivery interval T1 is 10 seas. when an atmospheric temperature in the vicinity of the recording head 1 is lower than 15 deg.C, and a no-load delivery interval T2 is 30secs. when the atmospheric temperature is 15 deg.C or higher. For example, upon completion of printing for one line, an MPU 81 makes a RAM 83 receive an atmospheric temperature in the vicinity of the recording head 1 outputted from a thermistor 11 through an A/D converter 85 and compares the current atmospheric temperature with an atmospheric temperature 15 deg.C for changing over a no-load delivery interval prestored in the RAM 83. If the atmospheric temperature is lower than 15 deg.C, a new time (t) stored in the RAM 83 is compared with a no-load delivery interval 10 secs. If the time (t) is 10 secs. or more, the MPU 81 instructs a non-load delivery of the recording head 1.

79. 发明专利

JPH03288650A INK JET RECORDER 失效
公开(公告)号：JPH03288650A
公开(公告)日：1991-12-18
申请号：JP8908890
申请日：1990-04-05
申请人： CANON KK
发明人： AICHI TAKAO , SHIGA MIKIO
IPC分类号： B41J2/05 , B41J2/12 , B41J2/125
摘要： PURPOSE:To improve a recording quality and to raise the temp. of a recording head to a predetermined value in a short time by a method wherein a heating value generated from heating element is changed correspondingly to a difference between a detected temp. and a set temp. in the recording head. CONSTITUTION:Recording heads 1 (1A-1D) mounted on a carriage 2 are provided with an electrothermal conversion body as a delivery energy generation element, wherein an electric energy supplied thereto is converted to a thermal energy to generate a bubble in ink. The ink is delivered to conduct recording. On each of the recording heads 1A - 1D, a temperature detection mean 4 and a heating element 5 for keeping a temperature at a predetermined value are provided. In addition, an air blowing means 7 is driven to cool the recording heads 1A - 1D. A head temp. t1 is detected by the thermistor 4 and compared with a set temp. T. If T>t1, a heating value is changed in proportion to a temp. difference DELTAT and supplied to the recording head 1. If T

80. 发明专利

JPH02303842A RECORDER 失效
公开(公告)号：JPH02303842A
公开(公告)日：1990-12-17
申请号：JP12444889
申请日：1989-05-19
申请人： CANON KK
发明人： AICHI TAKAO
IPC分类号： B41J2/01 , B41J2/13
摘要： PURPOSE:To remove problems such as stains of a next page or the like by minimizing length of waiting time after discharging paper of a medium to be recorded by a method wherein the case where an area having a recording density exceeding a specific value exists in a recording data, a next record is reverse for the time corresponding to a position at which the high density area exists. CONSTITUTION:When a high density part exists in a recording sheet, time for which execution of a next recording command is reserved after discharging paper is varied according to a position at which it exists. On supposing that, for instance, a Kth part is a last high density part 3, waiting time after discharging paper comes to be calculated by adding one page content recording time X (K-1)/N to minimum fixing time T1. When recording time corresponding to length of discharge opening arrangement is taken as (t), t= one page content recording time/N is obtained. Further, since recording speed is supposed to be constant irrespective of height of recording density in the sheet, time(t) is a value capable of being preliminarily established. Time TK for which execution of a next recording command after discharging paper is reserved when the high density part exists in the sheet can be expressed by the formula TK= T1+(K-1)Xt.

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