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71. 发明专利

JPH06340141A RECORDER 失效
公开(公告)号：JPH06340141A
公开(公告)日：1994-12-13
申请号：JP13054293
申请日：1993-06-01
申请人： CANON KK
发明人： KOIKE YASUSHI , SHIMADA TSUTOMU , KAKIZAKI MASAAKI , NIIKURA TAKEJI , SUGA SHOICHI , KATAYANAGI JUN
IPC分类号： B41J19/18 , B41J29/50
摘要： PURPOSE:To eliminate a possibility that recording is made on a part in the absence of a recording medium to prevent a recorder or a recording medium from being stained and further fuming or firing. CONSTITUTION:When a recording medium is supplied to a recorder, the width and position of the recording medium are detected by a recording medium width detection means. The width of the recording paper is compaired with the width of recording data. If the width of the recording data is larger, the magnitude of the recording data is reduced in accordance with the detected recording paper width for conducting recording.

72. 发明专利

JPH06316085A LIQUID JET RECORDING APPARATUS 失效
公开(公告)号：JPH06316085A
公开(公告)日：1994-11-15
申请号：JP10823093
申请日：1993-05-10
申请人： CANON KK
发明人： NIIKURA TAKEJI
IPC分类号： B41J2/175 , B41J2/05 , B41J2/125
摘要： PURPOSE:To provide a liquid jet recording apparatus preventing the refilling delay of ink by shift printing and reduced in the lowering of a printing grade. CONSTITUTION:The time required in the refilling of ink is estimated from the ink residual amt. in an ink tank and the temp. of a head. When the time required in refilling is short, shift quantity is allowed to approach zero as shown by (a) and, as the time required in refilling becomes long, shift quantity is made long as shown by (c), (b). By this constitution, shift quantity can be reduced in such a state that refilling is sufficiently in time and the deterioration of a printing grade can be suppressed.

73. 发明专利

JPH04257476A SERIAL DEVICE AND SERIAL RECORDER 失效
公开(公告)号：JPH04257476A
公开(公告)日：1992-09-11
申请号：JP3895391
申请日：1991-02-12
申请人： CANON KK
发明人： NIIKURA TAKEJI
IPC分类号： B41J2/05 , B41J29/00
摘要： PURPOSE:To prevent a flexible cable from tending to bend by a simple structure. CONSTITUTION:A bent wire part 15a which has been formed by bending a flexible cable 15 in a direction normal to a transfer direction of a cariage 2 is provided to the flexible cable 15 connecting electrically a fixing connector 17 to the carriage 2. Further, a serial type ink jet recorder is constructed by using said flexible cable 15. Though the flexible cable 15 whjch uses, for instance, a polyimide or polyethylene film as a base is easy to have a tendency to bend, when it is once bent, restoring force against force which is likely to keep the bend acts on the bent-up wire part 15a, and the flexible cable 15 becomes hard to fall into the tendency of being bent.

74. 发明专利

JPH0473679A LABEL SHEET 失效
公开(公告)号：JPH0473679A
公开(公告)日：1992-03-09
申请号：JP18567990
申请日：1990-07-13
申请人： CANON KK
发明人： NIIKURA TAKEJI
IPC分类号： B42D15/00 , G09F3/02
摘要： PURPOSE:To stably feed a sheet irrespective of conditions at the time of printing by providing a notch on the corner part of the sheet. CONSTITUTION:In the case of carrying the strippable sheet (ground sheet) 12 of a label sheet 10 in a recording device, the notched parts 13 and 14 are provided on the corners of the leading end side. In the case of feeding such a label sheet whose right and left sides on the upper end are cut off, paper jamming which is caused by the state where the upper end of the sheet slips under an ejecting roller 8, or turns outside the guiding member 10 of a peeling gear 9 can be prevented because the largely curved part of the right and left sides on the upper end is cut off. Thus, the sheet is stably fed irrespective of the conditions at the time of printing.

75. 发明专利

JPH03234681A RECORDER 失效
公开(公告)号：JPH03234681A
公开(公告)日：1991-10-18
申请号：JP2941490
申请日：1990-02-13
申请人： CANON KK
发明人： NIIKURA TAKEJI
IPC分类号： B41J2/01 , B41J11/20
摘要： PURPOSE:To obtain an optimum head cap without depending upon the thickness of a recording medium by energizing a platen toward a guide member and displacing it in response to the thickness of the medium. CONSTITUTION:A distance l between the discharge port of a head cartridge 9 and the front face of a platen 34 is optimally regulated for printing, a recording sheet inserted in a direction A is energized by a feed roller 39 toward a roller 33, and fed by its frictional force. The end of the sheet is inserted between the scraper 34A of the platen and the inside of the front face 45 of a paper pan against the force of a spring 82 while rotating the platen 34 in a direction B at a shaft 41A as a rotating center. The face 45 is suitably regulated at a gap to the discharge port forming surface, and fixed. Accordingly, the sheet on the platen 34 is held at an optimum head cap to the discharge port of a head cartridge 9 by escaping the plater 34 in the direction B without depending upon the thickness of the sheet.

76. 发明专利

JPS6453930A RECORDING DEVICE 失效
公开(公告)号：JPS6453930A
公开(公告)日：1989-03-01
申请号：JP20756087
申请日：1987-08-21
申请人： CANON KK
发明人： NIIKURA TAKEJI
IPC分类号： B41J13/00 , B65H1/02 , B65H1/04
摘要： PURPOSE:To stabilize the sheet feeding performance by furnishing a backward movement preventive means to prevent the backward movement of sheets when laminated sheets such as postcards are fed backward. CONSTITUTION:On a pressure plate type sheet supporter, sheet stoppers 13A and 13B to prevent the backward movement of sheets 6 in the direction B are furnished. The sheet stoppers 13A and 13B are furnished at the positions responding to the lateral and longitudinal sizes of the sheets 6, and arranged to maintain the laminated sheets 6 at a specific loading position even at the time of feedback of the uppermost sheet. Moreover, the sheet stoppers 13A and 13B are made to be folded in the arrow C directions, and they are folded when ordinary sheets are inserted manually. Consequently, at the time of feedback of a feeding roller 1A, the backward movement of the sheets 6 is prevented and the deterioration of sheet feeding performance owing to the disorder of sheets can be prevented.

77. 发明专利

JPS6451961A CUT SHEET FEEDER 失效
公开(公告)号：JPS6451961A
公开(公告)日：1989-02-28
申请号：JP20755987
申请日：1987-08-21
申请人： CANON KK
发明人： NIIKURA TAKEJI
IPC分类号： B41J13/00 , B65H3/56
摘要： PURPOSE:To enable stable feed of paper always regardless of a change in environment by constituting a separation protrusion with a protruding part with a plurality of steps which have different overriding forces. CONSTITUTION:A separation protrusion 30 consists of a plurality of steps with different overriding forces, e.g. two-step separate protruding parts 30-1, 30-2. The overlapping value of the separate protruding part to a feeder roller 2 is set by providing a less overriding force R for a first step protruding part 30-1 than that R for a second step separation protruding part 30-2. When the environmental conditions are low temperature and low humidity, the sheet (such as postcard) 1 is firm, so that it can easily be separated by one piece, even if its overriding force to the first step 30-1 is small. When the environmental conditions are high temperature and high humidity, the postcard is not firm and therefore, its coefficient of friction is large. Consequently, even if more than two pieces of sheet passed through the first step 30-1, the first sheet alone is separated in the second step 30-2 to perform precise paper feed, because its overriding force to the second step 30-2 is larger than that to the first step 30-1. Even when the environmental conditions ranging from low temperature, low humidity to high temperature, high humidity change significantly, stable separation feed performance of paper can be maintained.

78. 发明专利

JPS63202529A CUT SHEET FEEDER 失效
公开(公告)号：JPS63202529A
公开(公告)日：1988-08-22
申请号：JP3107187
申请日：1987-02-12
申请人： CANON KK
发明人： NIIKURA TAKEJI
IPC分类号： B41J13/00 , B41J13/02 , B65H3/06
摘要： PURPOSE:To enable both the distance between a paper feed roller and a separating claw and the pressure contacting force between said paper feed roller and a sheet to be simultaneously varied by forming said paper feed roller to be movable obliquely upward in a paper feeding direction with respect to a stacking board. CONSTITUTION:When a lever 19 is rotated around a shaft 13a, the projection 20a of a claw 20 is engaged with a recessed part 18a provided in the appropriate position of a claw fixing part 18, moving a roller shaft 7 in a condition that a gear 13 is engaged with a paper feed gear 14. Here, as the paper feeding shaft 7 is moved in three, I, II, and III positions, a paper feed roller 9 takes three positions and the distance l1I between a separating claw 11 and the roller shaft and the height (h) of the roller shaft with respect to a chassis 3 are, l1I hII>hIII, respectively. The pressure contacting force of the paper feed roller is given by a spring 10 for energizing a stacking board 2 and, as the (h) becomes larger, the deflecting quantity of the spring becomes smaller, lowering the pressure contacting force. That is, the pressure contacting force F is, FI

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