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41. 发明专利

JPH0588276A NEGATIVE FILM HOLDING MEMBER AND FILM PROJECTING DEVICE 失效
公开(公告)号：JPH0588276A
公开(公告)日：1993-04-09
申请号：JP27633091
申请日：1991-09-30
申请人： CANON KK
发明人： SAIJO YASUTSUGU
IPC分类号： G03B27/58
摘要： PURPOSE:To prevent an index member from damaging a negative film at the time of abutting in a film projecting device where the film is prevented from being set wrong in a negative film holding member even when the film is warped and which is provided with a mechanism for advancing the index member for focusing. CONSTITUTION:In the case of placing the negative film F which is recessed in the center part on the lower holding plate 14 of the negative film holding member 5 and loading it, the float of the edge of the film is regulated by the overhanging part 14 of a short guide 14c, so that the film is correctly set at the time of closing an upper holding plate 13. When the index film stuck to the holder is allowed to abut on the film F held by the member 5 by an adjusting button in a state where the member 5 is loaded in the film projecting device and focusing is performed, the projecting part of the adjusting button is engaged with the notch of the member 5 so that the member 5 is fixed and prevented from moving.

42. 发明专利

JPH03135157A PICTURE RECORDER 失效
公开(公告)号：JPH03135157A
公开(公告)日：1991-06-10
申请号：JP27156989
申请日：1989-10-20
申请人： CANON KK
发明人： SAIJO YASUTSUGU , TAKEDA AKIO
IPC分类号： H04N1/00
摘要： PURPOSE:To prevent a damage of an original even when an original with a size larger than an original of maximum size at the recording of a usual original is set by providing a rising part around a projection for mounting other device. CONSTITUTION:Two mount pins 2 as mount projections are provided to this side on upper face of an equipment main body A and used to mount an option machine. Then a rising part 1a is provided to an outer package cover for the pins 2 and original platen glass retainer 1. Then even when a large sized original not placed on an original platen glass 3 is set, the protruded part is supported by the rising part 1a and in contact with a slope of the rising part 1a over a wide range. Thus, no local contact with the pins 2 is caused and a flaw by the pins 2 or the trace of the pins is avoided.

43. 发明专利

JPH02284173A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH02284173A
公开(公告)日：1990-11-21
申请号：JP10667389
申请日：1989-04-26
申请人： CANON KK
发明人： TAKEDA AKIO , NOMURA AKIHIRO , MIYAUCHI YASUO , SAIJO YASUTSUGU , UCHIDA HARUO
IPC分类号： G03G15/04 , G03G15/00
摘要： PURPOSE:To provide both functions of a copying machine and a printer and to eliminate the problems, such as high cost of equipment and the necessity for a large space for installation by having analog exposure function as the copying device through a light path for copying and having digital exposure function as the printer through a light path for printing. CONSTITUTION:The device is provided with a copying with B which functions the image forming device as the copying device by analog exposing L 13 the image information against an image carrier 2 through the light path for copying 22, and a printer unit C which functions the image forming device as the printer by digitally exposing LC the image information through the light path for the printer 23. That is, the device main body A is shared and by exchanging and loading the units B and C, it can be utilized as the copying machine or the printer. Thus, the problem of equipment cost and the equipment installing space is solved when providing the two machines of the copying machine and the printer as entirely separate devices of single functions.

44. 发明专利

JPH02181165A PROCESS CARTRIDGE AND IMAGE FORMING DEVICE 失效
公开(公告)号：JPH02181165A
公开(公告)日：1990-07-13
申请号：JP19393489
申请日：1989-07-28
申请人： CANON KK
发明人： MIYAUCHI YASUO , TAKEDA AKIO , UCHIDA HARUO , SAIJO YASUTSUGU , NOMURA AKIHIRO
IPC分类号： G03G15/00 , G03G15/08 , G03G21/18
摘要： PURPOSE:To hold the gap between an image carrier and a developing roller stably with high accuracy by arranging the developing roller movably in a linear direction specified for the direction connecting the centers of rotation of the image carrier and developing rollers. CONSTITUTION:When the pressure angle of a 1st gear 11 is denoted as theta, a cartridge base 1a is provided with a guide part 13 which enables the developing roller 4 to move in the direction slanting within a (0.7Xtheta)-(1.3Xtheta) range from the direction A connecting the centers of rotation of the image carrier 2 and developing roller 4 to the center of rotation of the developing roller 4. As the gear 11 rotates, a force F operates on a 2nd gear 12 in a direction shifting by the pressure angle theta, so the developing roller 4 which is coaxial with the gear 12 receives a force of separation from the image carrier 2, but the developing roller 4 can more only in a linear direction deviating from the direction B crossing the force F at right angles by + or -0.3theta, so that the roller never is separated through the operation of an elastic member 6. Consequently, the relative position relation between the developing roller 4 and image carrier 2 is maintained with high accuracy.

45. 发明专利

JPH02100076A FIXATION DEVICE 失效
公开(公告)号：JPH02100076A
公开(公告)日：1990-04-12
申请号：JP25324588
申请日：1988-10-07
申请人： CANON KK
发明人： SAIJO YASUTSUGU , NOMURA AKIHIRO , TAKEDA AKIO , MIYAUCHI YASUO , UCHIDA HARUO
IPC分类号： G03G15/20 , B65H20/36
摘要： PURPOSE:To convey even an ultrathin sheet surface member without causing wrinkle or waving and to make the sheet surface member uniformly in contact with a toner image by accumulating the energy of elastic power in a direction where the sheet surface member is rewound, accompanied with feeding the sheet surface member. CONSTITUTION:One end part and the other end part of a spring 31 are fixed to a feeding shaft 24 and the outer peripheral part of a spring box 30 respectively. When a fixation film 23 is moved in a feeding direction at the time of performing a fixing action, shown by an arrow C, the energy of the spring force is accumulated in a direction opposite to the feeding direction through the feeding shaft 24. In such a case, since tension is given to the fixation film 23 with the spring force of the spring 31, the film 23 is fed and comes closely in contact with a transfer sheet without causing wrinkle or waving. Thus, heat from a heating body 21 is uniformly transmitted to the transfer sheet and a part of the toner image can be prevented from being unfixed or fixed incompletely.

46. 发明专利

JPH0268576A SAFETY MECHANISM FOR COPYING DEVICE 失效
公开(公告)号：JPH0268576A
公开(公告)日：1990-03-08
申请号：JP22048188
申请日：1988-09-05
申请人： CANON KK
发明人： TAKEDA AKIO , NOMURA AKIHIRO , SAIJO YASUTSUGU , UCHIDA HARUO , MIYAUCHI YASUO
IPC分类号： G03G21/00 , G03G15/00 , G03G15/04
摘要： PURPOSE:To prevent a moving mechanism from breaking by fixing a moving copying unit to a fixed original platen in a switch-off state and releasing the moving copy unit from being fixed in a switch-off state associatively with a power switch. CONSTITUTION:The power switch 14 and a fixed member 15 which constitutes a fixing mechanism are arranged closely nearby the opening part of the fixed original platen 2. The fixed member 15 is constituted by projecting a fixed lever 15b and a hook 15c at both ends of a shaft 15a in the same direction and the whole fixed member 15 is fitted rotatably around the shaft 15a. When the hook 15c is positioned as shown in a figure D, the moving copy unit 3 is released from being fixed by the fixing mechanism and when the hook 15c is positioned as shown in a figure E by rotating by 90 deg. through the hole 2a of the fixed original platen 2 and the hole 3a of the moving copy unit 3, the hook 15c engages the part of the hole 3a of the moving copy unit 3 to fix the moving copy unit 3 by the fixing mechanism. Then the fixed member 15 and power switch 15 are associated operatively.

47. 发明专利

JPH0250144A COPYING DEVICE 失效
公开(公告)号：JPH0250144A
公开(公告)日：1990-02-20
申请号：JP20017988
申请日：1988-08-12
申请人： CANON KK
发明人： NOMURA AKIHIRO , MIYAUCHI YASUO , TAKEDA AKIO , UCHIDA HARUO , SAIJO YASUTSUGU
IPC分类号： G03B27/62 , G03B27/50 , G03G15/00 , G03G15/04
摘要： PURPOSE:To eliminate the need of focusing adjustment by providing a space determination member which abuts on an original platen and the original platen glass of a sheet through device and sets a space between them constant. CONSTITUTION:Rollers for determining a space 22 and 23 which abut on the original platen glass 3 are provided on the upper surface of a copying machine main body 10 so that their positions can be adjusted. Therefore, the focal point of a lens array 13 an be automatically adjusted on the surface of an original just by setting the copying machine main body 10 to the original platen 1 or just by setting the sheet through device 40 to the copying machine main body 10. Thus, the above-mentioned focal pint of the lens in the copying machine main body 10 adjusted on the surface of the original can be always kept constant on the original platen glass 3 and the focal point of the lens need not be adjusted at the time of replacing the optional original platen 3 and the sheet through device 40 in the copying machine main body 10.

48. 发明专利

JP2000190530A INK JET RECORDING APPARATUS 失效
公开(公告)号：JP2000190530A
公开(公告)日：2000-07-11
申请号：JP37706098
申请日：1998-12-28
申请人： CANON KK
发明人： SAIJO YASUTSUGU
IPC分类号： B41J2/165 , B41J2/175 , B41J2/18 , B41J2/185
摘要： PROBLEM TO BE SOLVED: To provide an ink jet recording apparatus equipped with a suction restoring unit having simple and small-sized constitution and capable of preventing that ink is unexpectedly drawn out from the emitting orifices of a recording head or air is pushed in the emitting orifices even if environmental temp. or pressure changes at the time of protective capping or at the time of suction restoring operation. SOLUTION: The first space A having the surface covering an emitting orifice surface 1a of a cap 5, the second space B formed on a holder 6 to which the cap is fixed and having a surface deformable to a level capable of generating a pressure change, a first one-way valve 7 capable of passing a fluid only from the first space to the second space and a second one-way valve 8 capable of passing the fluid only to the outside from the second space are provided on a restoring unit.

49. 发明专利

JPH10157153A INK JET RECORDER 失效
公开(公告)号：JPH10157153A
公开(公告)日：1998-06-16
申请号：JP33026996
申请日：1996-11-26
申请人： CANON KK
发明人： SAIJO YASUTSUGU
IPC分类号： B41J2/165 , B41J2/18 , B41J2/185
摘要： PROBLEM TO BE SOLVED: To sustain a mutually separated state when it is not desired to abut a cap directly on a jetting means at the time of suction recovery by abutting a part of caps on the jetting means while allowing a selective capping operation for sustaining the remaining caps in separated state. SOLUTION: Since a cap holder spring charged upward is pushed downward when a protrusion 31 on a cap holder for a pretreatment liquid cap 4S abuts on the lower surface 23f of a carriage 23, the cap 4S is sustained in a state separated from a jetting means (e.g. the jet head 1K for black ink). More specifically, the cap 4S is sustained in a state separated from any jetting means 1 at the time of ink sucking (suction recovering) operation thereof. The cap 4S does not abut on ink jetting means 1K, 1C, 1M and 1Y and a mutually separated state can be sustained between the cap and the jetting means at the time of suction recovery if direct abutting is not desired.

50. 发明专利

JPH09193367A IMAGE FORMING SYSTEM AND IMAGE FORMING METHOD 失效
公开(公告)号：JPH09193367A
公开(公告)日：1997-07-29
申请号：JP31440595
申请日：1995-12-01
申请人： CANON KK
发明人： SAIJO YASUTSUGU
IPC分类号： B41J2/01 , B41J2/21 , B41J29/00 , B41M5/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming system which provides a high-grade image by improving ink image formation on a recording medium using a treatment liquid. SOLUTION: The image forming system includes a carriage 32 intended for relative movement of an ink jet recording head 1 which discharges ink containing a coloring material to a recording medium P from an ink outlet, an application roller 33 as a treatment liquid application means which applies a treatment liquid which coagulates the coloring material in the ink to a recording medium or an absorbing body 31. The treatment liquid application means applies the treatment liquid by contacting the recording medium in a state of collision, prior to ink discharge to the recording medium P by an ink jet recording head. The treatment liquid application means is mounted on the carriage.

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