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公开(公告)号：JPH02149866A
公开(公告)日：1990-06-08
申请号：JP30307488
申请日：1988-11-30
Applicant: MITA INDUSTRIAL CO LTD
Inventor： MATSUMOTO MASASHI , KAI SHOZO , KAGAWA TETSUYA , KITA HIDEKI
IPC: G03G15/01
Abstract: PURPOSE:To accelerate copying speed by gripping the end of a paper based on the rotating angle position information of grip means obtained by angle position detecting means. CONSTITUTION:Plural grip claws 341-343 are provided on a transfer drum 34 at regular intervals. Moreover, the angle position detecting means 344 which detects the rotating angle position of the grip claws 341-343 is provided inside the transfer drum 34. Besides, a paper P is wound around the transfer drum 34 by electrifying the transfer drum 34 while the transfer drum 34 is made one rotation in condition where the end of the paper P is gripped by one of the grip claws 341-343 based on the angle position detecting result of the grip claws 341-343. Thus, copying speed can be accelerated.
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公开(公告)号：JPH0269782A
公开(公告)日：1990-03-08
申请号：JP22267688
申请日：1988-09-05
Applicant: MITA INDUSTRIAL CO LTD
Inventor： KITA HIDEKI , DEGUCHI HIROYUKI , ISHII YOSHIFUMI , MATSUMOTO MASASHI , KAI SHOZO
Abstract: PURPOSE:To miniaturize the device, and also, to easily execute its manufacture and maintenance, etc., by providing an optical path length adjusting means for moving forward and backward an optical path branching mirror in an optical path, and also, adjusting the optical path length of each optical path corresponding to the movement of the optical path branching mirror by moving a part of a reflecting mirror. CONSTITUTION:By an optical path length adjusting means 7, not only an optical path branching mirror 28 can be moved forward and backward in an optical path but also the optical path length of each optical path corresponding to the movement of the optical path branching mirror 28 can be adjusted by moving a part of a reflecting mirror. Moreover, by the optical path branching mirror 28, a prescribed image can be projected selectively to an exposure position of each photosensitive body 30a, 30b from a common optical path. Accordingly, a prescribed electrostatic latent image is formed in the respective exposure positions of each photosensitive body 30a, 30b, and by the development, the electrostatic latent image can be converted to a developed image as a toner image. In such a way, the device can be miniaturized, the structure and the control can be simplified, and also, the manufacture and the maintenance, etc., can be executed easily.
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公开(公告)号：JPH0233162A
公开(公告)日：1990-02-02
申请号：JP18440988
申请日：1988-07-22
Applicant: MITA INDUSTRIAL CO LTD
Inventor： KITA HIDEKI , KAGAWA TETSUYA , ISHII YOSHIFUMI , DEGUCHI HIROYUKI , MATSUMOTO MASASHI , KITAGAWA SHOICHI , KAI SHOZO
IPC: G03G15/01
Abstract: PURPOSE:To improve ability for processing a mono-color image by constituting the title device so that paper can be guided to a transfer area without winding about a transfer drum in a mono-color mode. CONSTITUTION:In a full-color mode, the paper P supplied from a paper supply cassette 12 or a paper manual supply part 13 is fed to the transfer drum 34 through a paper conveyance path 4A and the paper P is made to wind about the drum 34 while rotating the drum 34 once. Every time the drum 34 is rotated once, a toner image on a photosensitive drum 30 is sequentially transferred to the paper P, which is fed to a fixation device 5. Meanwhile, it is mono-color mode, the paper P supplied from the cassette 12 or the paper supply part 13 is directly fed to the transfer area T through a paper conveyance path 4B and fed to the device 5 after the toner image formed on the drum 30 is transferred to the paper P.
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公开(公告)号：JPH01288567A
公开(公告)日：1989-11-20
申请号：JP12015588
申请日：1988-05-17
Applicant: MITA INDUSTRIAL CO LTD
Inventor： MATSUMOTO MASASHI , DEGUCHI HIROYUKI , KAI SHOZO , ISHII YOSHIFUMI , KITA HIDEKI , KITAGAWA SHOICHI
Abstract: PURPOSE:To permit the assortment up to the number in two times of the number of bins by transporting the paper sheets which are in equal number to that of bins and on which each image is formed onto a sorter and reversing the rest paper sheets on which each image is formed and storing said paper sheets in an intermediate tray and transporting said sheets one by one into the sorter. CONSTITUTION:If, in the one-sided surface copying, the necessary assortment quantity N is two times of the number (n) of bins, n-pieces of the paper sheets on which each image is formed in a copying device body 1 are transported into a sorter 2 successively, and accommodated into n-pieces of bins 2a. The rest succeeding n-pieces of paper sheets on which each image is formed are once accommodated into an intermediate tray 13 through a reversing passage 12, and when the formation of N=2 pieces of images is completed, the stored paper sheets on which each image is formed are sent one by one into a sorter 2 through an image formation part by the rise of the intermediate tray 13 and the operation of a sending-out roller 14, and discharged in the reversed state onto the paper sheets which are accommodated onto the top of each bin 2a. Thus, the assortment up to two times of the number of bins is permitted without increasing the number of bins of the sorter.
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公开(公告)号：JPS6367183B2
公开(公告)日：1988-12-23
申请号：JP10294481
申请日：1981-06-30
Applicant: MITA INDUSTRIAL CO LTD
Inventor： KOZUKA NOBUHIKO , KOYAMA SHIGEO , KAI SHOZO , TAKAHASHI ICHIRO , SAKATA HIROMI , KANO ATSUSHI
IPC: G03G15/08
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Patent Agency Ranking
公开(公告)号：JPS61262777A
公开(公告)日：1986-11-20
申请号：JP10637085
申请日：1985-05-17
Applicant: MITA INDUSTRIAL CO LTD
Inventor： KAJITANI TETSUJI , KAI SHOZO
Abstract: PURPOSE:To reset a preheat state easily and securely by providing a temperature control means, a state decision means, and an input control means. CONSTITUTION:The temperature control means 3 controls a fixing part into a copying operation continuation state and a preheat state in which copying operation can not be performed, and the state decision means 1 decides the copying operation continuation state and preheat state. The input means 2 outputs a signal for controlling the temperature control means so that the fixing part enters the copying operation continuation state. then, a state decision signal from the state decision means 1 which decides the state from the temperature, etc., of the fixing part is applied to the input control means 2 and when all key operation signals are inputted, a preheat state resetting signal from the input control means 2 is applied to the temperature control means 3. Further, a copying operation completion detecting means 4 is provided which detects the completion of a series of copying operations and applies a preheating signal to the temperature control means 3 a specific time later, and respective set condition indicating signals from the input control means 2 are applied to a copying operation continuation control means 5.
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公开(公告)号：JPH05150603A
公开(公告)日：1993-06-18
申请号：JP34248391
申请日：1991-11-29
Applicant: MITA INDUSTRIAL CO LTD
Inventor： KAI SHOZO
Abstract: PURPOSE:To provide the electrification potential control method for a photosensitive body which can electrify the surface of the photosensitive body to a prescribed specified potential with high accuracy regardless of the sensitivity change of the photosensitive body. CONSTITUTION:The electrification potential control method for the photosensitive body 1 consists of detecting the surface potential of the photosensitive body 1 by a potential detector 7 in the state of impressing the reference voltage corresponding to the reference electrification potential by a reference voltage generating circuit 11 to the surface of the photosensitive body 1, previously storing the detected value of the potential detector 7 as a reference value and controlling an electrifier 2 in accordance with the detected value by the reference value at the time of electrifying the surface of the photosensitive body 1 by the electrifier 2. The impedance of the reference voltage generating circuit 11 is set smaller than the overall impedance viewed from the photosensitive body 1 side of circuits 22, 23 exclusive of the reference voltage generating circuit 11 among the circuits connected to the photosensitive body 1 when the reference voltage corresponding to the reference electrification potential is impressed to the surface of the photosensitive body 1 by the reference voltage generating circuit 11 in the method.
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公开(公告)号：JPH03172077A
公开(公告)日：1991-07-25
申请号：JP31231189
申请日：1989-11-30
Applicant: MITA INDUSTRIAL CO LTD
Inventor： KAI SHOZO , AMAKAWA KATSUMI , ANDO HIRONORI , SHIMATANI AKIRA
Abstract: PURPOSE:To improve resolution in a monochromatic mode by providing an output separating means to successively take out outputs from respective color light detecting means uniformed by an output uniforming means in an arranging direction for each color light detecting element in the monochromatic mode. CONSTITUTION:When the monochromatic mode is selected and an original is exposed, the picture of the original is read and scanned by respective color sensors 3 of a linear image sensor array 2 and for each color sensor 3, the picture is outputted through a picture processing part 7 and a conversion part 9 to an output control part 10. Color signals corresponding to color light detecting elements 4g and 4b are amplified based on respective amplification factors stored in a memory at the input of the output control part 10. Further, the color signals corresponding to color light detecting elements 4r, 4g and 4b are not synthesized to one signal but taken out successively as monochromatic signals in the arranging direction of the color light detecting element for each color light detecting element.
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公开(公告)号：JPH0266034A
公开(公告)日：1990-03-06
申请号：JP21770788
申请日：1988-08-31
Applicant: MITA INDUSTRIAL CO LTD
Inventor： KAI SHOZO , KITA HIDEKI , ISHII YOSHIFUMI , DEGUCHI HIROYUKI , MATSUMOTO MASASHI , KITAGAWA SHOICHI
Abstract: PURPOSE:To improve a conveying quality by constituting a document conveying belt of a part with large document conveying power and a part with a small load applied to contact glass and driving the conveying belt so that the point end of its part with large conveying power agrees with the point end of a document. CONSTITUTION:A document conveying belt 13 is constituted of a part 13a with large document conveying power and a part 13b with a small load applied to contact glass 2. A document, when it is fed to a resist roller 9, is once stopped, and the large conveying power part 13a, when its point end A is detected by a detecting means 16, is once stopped. The resist roller 9 and the conveying belt 13 are driven synchronizing, and the document is conveyed by the part 13a with large conveying power of the conveying belt 13. A conveying belt positions its part 13a with large conveying part in a portion with the document present and the part 13b with a small load applied to the contact glass 2 in a portion with no document present, improving a conveying quality.
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公开(公告)号：JPH0262340A
公开(公告)日：1990-03-02
申请号：JP21336488
申请日：1988-08-26
Applicant: MITA INDUSTRIAL CO LTD
Inventor： KITA HIDEKI , ISHII YOSHIFUMI , KAI SHOZO , DEGUCHI HIROYUKI , MATSUMOTO MASASHI , KITAGAWA SHOICHI
Abstract: PURPOSE:To prevent a transporting roller from running idle on a contact glass in the last stage of discharge action by providing driving a transmission means which obstructs driving transmission at the time of passing based on the detection of the detecting mechanism of an original transporting discharge means. CONSTITUTION:When a detecting mechanism detects that the end portion of an original text sheet passes through the nip position of a discharge roller pair 30 so as to be in a state of transportable, a clutch 32 is cut by this detected signal and driving transmission to an original transporting roller 22 is obstructed so that the driving rotation of the original transporting roller 22 is changed over to following rotation by this obstructing action. As a result, in accordance with that the original text sheet is transported by the discharge roller pair 30, the original transporting roller 22 is driven by tension which acts upon this original text sheet and is for transporting from the discharge roller pair 30, and thereafter when the pointed end portion of the original text sheet passes through between the original transporting roller 22 and a contact glass 6, the rotation of the transporting roller 22 stops. The idle running of the transporting roller 22 on the contact glass 6 in the last stage of discharge action can be prevented in this way.
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