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1. 发明专利

JPH05312211A 失效
公开(公告)号：JPH05312211A
公开(公告)日：1993-11-22
申请号：JP11573092
申请日：1992-05-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YASUBA HIROSHI
IPC分类号： G03G15/20 , F16C13/02 , F16C35/073
摘要： PURPOSE:To provide a bearing for a fixing device which enables stable fixing. CONSTITUTION:Instead of directly inserting a shaft 5a of a heating roller/ pressure roller 5 into an inner ring 8a of a rolling bearing 8, a bushing 11 having a keyway 11b is fixed to the inner ring 8a of the rolling bearing 8, and the shaft 5a having a key 5b is inserted into the fixed bushing 11. Accordingly. abrasion due to sliding between the shaft 5a and the inner ring 8a as well as excessive load generation on the shaft 5a and the bearing 8 due to excessively tight fitting between the shaft 5a and the inner ring 8a is never caused, and the heating roller/pressure roller 5 are respectively smoothly rotated to apply specified pressure to toner on a recording paper sheet so as to realize stable fixing.

2. 发明专利

JPH03192275A ELECTROPHOTOGRAPHIC COPYING DEVICE 失效
公开(公告)号：JPH03192275A
公开(公告)日：1991-08-22
申请号：JP33440189
申请日：1989-12-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YASUBA HIROSHI
IPC分类号： B41J2/44 , G03G15/04
摘要： PURPOSE:To keep a contrast potential on a photosensitive body constant and to obtain a stable printed image by previously storing the intensity of laser light made incident on the photosensitive body and controlling the intensity of the laser light made incident on the photosensitive body so that it may be equal to stored intensity. CONSTITUTION:At the time of setting an electrophotographic copying device, the contrast potential is set to be a constant value and the intensity of the light at that time is detected by a laser light intensity detector 26, then the detected value is stored in a driving circuit 21. When the device is used in a dusty room for a long time, the reflectance of a mirror is lowered, the transmissivity of a lens is lowered. In the case that the laser light enters in the detector 26 in such a state, the intensity of the laser light becomes weaker than the initially stored intensity of the laser light. Then, the driving circuit 21 is actuated to increase the potential applied to the laser light so that it may have the same intensity as the initial laser light. Thus, the constant contrast potential is always obtained.

3. 发明专利

JPH02266373A COPYING MACHINE 失效
公开(公告)号：JPH02266373A
公开(公告)日：1990-10-31
申请号：JP8881189
申请日：1989-04-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YASUBA HIROSHI
IPC分类号： G03G15/00 , G03G15/04 , G03G15/043 , G03G15/06
摘要： PURPOSE:To obtain a stable image for a long time by providing an exposure control means which controls irradiation intensity of an exposing means according to the output of a reflection intensity detecting means. CONSTITUTION:At the time of pre-scanning, the reflected light of a standard white board 22 detects the extent of contamination of an optical system (mirror, lens), and the light reflected from an original 6 detects blackness of the original (an original and newspapers written on white paper, and an original written on a colored paper). Thus, when the intensity of the light reflected from the standard white board 22 is weakened, a signal is sent to a lamp controller from a detector 23 to raise a scan/exposure voltage. The intensity of the light reflected from the standard white board 22 is constant. When the intensity of the light reflected from the original 6 is weak, the optical system is not contaminated. However, the detector decides that the original is black so that the scan/exposure voltage is raised. When both intensities of the lights reflected from the standard white board 22 and the original 6 are weak, the detector detects that there is contamination of the optical system and the original is black. Consequently, the scan/exposure voltage is raised. Therefore, a copied picture without fogging can be obtained for a long time.

4. 发明专利

JPH01299158A DUPLICATING DEVICE 失效
公开(公告)号：JPH01299158A
公开(公告)日：1989-12-01
申请号：JP13066888
申请日：1988-05-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YASUBA HIROSHI , ISHIDA EISUKE
IPC分类号： B65H31/00 , B65H1/30 , B65H31/22 , B65H83/00 , G03G15/00
摘要： PURPOSE:To prevent popping out of a discharge tray and a feed cassette from a device body and to enable installation of a device by using a space only for a body, by a method wherein a sheet containing part for a feed and a sheet containing part for completion of duplication are situated in the body. CONSTITUTION:When sheets are supplied in feed cassettes 1-4, after the cassette is pulled out in a direction shown by an arrow mark 30, the sheets are contained therein, and the cassette is pushed in a direction shown by an arrow mark 29. When, after completion of duplication, duplicated sheets are taken out, after a containing tray 22 is pulled out in the direction of an arrow mark 30, a duplicated sheet is taken out, and thereafter, the tray is pushed in the direction of the arrow mark 29. A signal for completion of duplication is detected, and only the containing tray 22 is caused to automatically come out in the direction of the arrow mark 30. As noted above, by piling up a feed part 8 and a containing part 22 for completion of duplication and a duplicating part 19 in a direction Z, any pat is not protruded in the direction of the duplicating device body side (x), and only through execution of control on the front side of the duplicating device body, the motion of a duplicating device is practicable, and a space 28 can be reduced.

5. 发明专利

JPS6383775A COPYING MACHINE 失效
公开(公告)号：JPS6383775A
公开(公告)日：1988-04-14
申请号：JP23033386
申请日：1986-09-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YASUBA HIROSHI , UENISHI HARUYUKI , KUBO HIDEYUKI , NAITO MASAKAZU
IPC分类号： G03G15/14 , G03G15/16
摘要： PURPOSE:To obtain a stable image by giving the charge of the same polarity as a belt to a paper with a corona discharging, controlling a corona current to flow at the separating area of the belt with an electrifying means and adjusting the aperture part of the electrifying means. CONSTITUTION:For an electrifier 11, the high voltage of the same polarity as a transferring electrifier 6 is impressed to a wire 12, the aperture part of a corona current is formed on a surface 13 in the lower direction and a corona ion to occur at the electrifier 11 flows through the aperture part of the surface 13 to a paper 13. On the surface overlapped with the surface 13 of a case cover 21, an aperture part 24 is provided, the fixing part of an electrifying case 19 of the case cover 21 comes to be an oblong hole 25, the case cover 21 is moved in the direction 26 of an arrow and the aperture of aperture parts 23 and 24 can be adjusted. The corona current to a paper from the electrifier 11 flows through the aperture part. In the condition of temperature and humidity, the aperture part of the electrifier 11 is adjusted and the clearly finished copy can be obtained.

6. 发明专利

JPS60159869A DEVELOPING DEVICE 失效
公开(公告)号：JPS60159869A
公开(公告)日：1985-08-21
申请号：JP1653084
申请日：1984-01-31
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YASUBA HIROSHI , ISHIDA EISUKE
IPC分类号： G03G15/08 , G03G15/09 , H04N1/29
摘要： PURPOSE:To enable development small in humidity variation and stable in image quality by installing a developing vessel provided with a magnet roll in the inside and a heating means for humidifying the inside of the vessel. CONSTITUTION:When a humidity detector 12 installed inside a developing vessel 5 or near its outside detects low humidity, a detection signal is compared in a signal processing unit 14, and actuates the heater of a humidifier 13. Steam produced from heater water 15 is introduced into the vessel 5 through a pipe 16 to humidify the inside. A developer 8 is humidified with the steam, and image density is enhanced. When humidity corresponding to the optimum image density is caused to be stored in the unit 14 in advance, humidificationof the humidifier 13 is stopped by detecting the optimum humidity by the detector 12, and the inside of the vessel 5 is maintained always at constant humidity. When the detector 12 detects high humidity, the detection signal is compared in the unit 14, and the heater 17 of a heating means is actuated. Accordingly, the inside of the vessel 5 and the developer 8 are dried, and the heating means is stopped when humidity reaches the optimum humidity.

7. 发明专利

JPS6097369A ELECTROSTATIC CHARGE 失效
公开(公告)号：JPS6097369A
公开(公告)日：1985-05-31
申请号：JP20645383
申请日：1983-11-01
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YASUBA HIROSHI , ISHIDA EISUKE
IPC分类号： G03G15/02 , G03G15/00 , G03G15/14
摘要： PURPOSE:To separate a paper surely by setting the shape and the attaching position of a paper rush preventing pawl so that the attaching position of an electrostatic charging wire in a changer case satisfies a specific relational formula. CONSTITUTION:Plural paper rush preventing pawls 15 are provided on one side wall of a charger case 12 in which a charging wire 14 is stretched, and the position (a) of the wire 14 is made deeper than positions (b) of tips of pawls 15; and therefore, pawls 15 do not overlap the wire 14 to increase the corona discharge current flowed to a photosensitive body, and the paper separating effect is enhanced. Paper lifting members 17 are provided on the other side wall of the case 12; and if a vertical position (b) of the wire 14 is set to satisfy b>h'>h, a curled paper 19 flowed in the direction of an arrow 19 is lifted immediately when it is brought into contact with lifting members 17, and the front end of the paper passes the case easily and is carried to the next step well.

8. 发明专利

JPS6076756A DEVELOPING METHOD 失效
公开(公告)号：JPS6076756A
公开(公告)日：1985-05-01
申请号：JP18535883
申请日：1983-10-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YASUBA HIROSHI , KAMATA TOMOYASU , ISHIDA EISUKE
IPC分类号： G03G15/08 , G03G9/08 , G03G9/083 , G03G13/08 , G03G13/09
摘要： PURPOSE:To improve image density and reproducibility of fine lines by specifying the nearest distance between a photosensitive body having photoconductivity and a rotatable developing sleeve contg. a magnet, forming a carrier of spherical ferrite in a specific grain size range and incorporating carbon of an amt. in a specific range into a toner. CONSTITUTION:The nearest distance between a drum-shaped photosensitive body 10 having photoconductivity and a rotatable developing sleeve 8 contg. a magnet 9 is set in a 0.5-2mm. range. A magnetic brush is formed on the developing sleeve by using a mixed developer 13 of which the toner contains 10-20pts. carbon with respect to the constituting resin thereof and the carrier is spherical ferrite having 20-100mu average grain size. The electrostatic latent image on the surface of the photosensitive body 10 is thus developed. The development which provides high image density, improves the uniformity in the solid black part and has good reproducibility without collapsion of fine lines is thus made possible.

9. 发明专利

JPS59146081A Cleaner of photosensitive body 失效
标题翻译：感光体清洁剂
公开(公告)号：JPS59146081A
公开(公告)日：1984-08-21
申请号：JP1996583
申请日：1983-02-09
申请人： Matsushita Electric Ind Co Ltd
发明人： OIDA HIROSHI , YASUBA HIROSHI
IPC分类号： G03G21/10 , G03G21/00
CPC分类号： G03G21/0029 , G03G2221/0042 , G03G2221/0063 , G03G2221/0089
摘要： PURPOSE:To clean the surface of a photosensitive body without detaching the photosensitive body from a copying machine by providing a supporting member in a vertically movable state in a housing which is attachable and detachable in the axial direction of the photosensitive body, and making this supporting member attachably and detachably. CONSTITUTION:When the photosensitive body cleaner is mounted to the copying machine body, a conveyer table 10 is moved down as shown by an arrow (c) to detach a separate electrostatical charger and a housing 15 constituting the photosensitive body cleaner is inserted along an electrostatical charger rail 9 in the axial direction of the photosensitive body 1. Then, the conveyor table 10 is lifted as shown by an arrow (b). The supporting member 12 is supported in the housing 15 by attaching/detaching mechanism provided on both sides so that the member 12 is rotatable around the surface of the drum 1 and vertically slidable by a sliding member 13; and the member 12 is energized upward by an elastic member 14, so the cleaning member 11 on the supporting member 12 is pressed against the photosensitive body 11. Then, the photosensitive body 1 is rotated more than once to remove a contaminant from the surface of the photosensitive body 1.
摘要翻译：目的：通过在可感知体的轴向上可附接和拆卸的壳体中设置可垂直移动的支撑构件，来清洁感光体的表面，而不将复印机的感光体分离，会员可以安装和拆卸。构成：当感光体清洁器安装在复印机主体上时，传送台10如箭头（c）所示向下移动，以分开一个静电充电器，构成感光体清洁器的壳体15沿静电插入充电器轨道9在感光体1的轴向上。然后，传送台10如箭头（b）所示地提升。支撑构件12通过设置在两侧的安装/拆卸机构支撑在壳体15中，使得构件12能够围绕滚筒1的表面旋转并且可由滑动构件13垂直滑动; 并且构件12被弹性构件14向上通电，因此支撑构件12上的清洁构件11被压靠在感光体11上。然后，感光体1旋转不止一次以从...的表面去除污染物感光体1。

10. 发明专利

JPS5942579A Photoreceptor cleaning device 失效
标题翻译：光电传感器清洁装置
公开(公告)号：JPS5942579A
公开(公告)日：1984-03-09
申请号：JP15215782
申请日：1982-08-31
申请人： Matsushita Electric Ind Co Ltd
发明人： YASUBA HIROSHI , OIDA HIROSHI , KITAICHI SATOSHI
IPC分类号： G03G21/10 , G03G21/00
CPC分类号： G03G21/00 , G03G2221/0042 , G03G2221/0063 , G03G2221/0089
摘要： PURPOSE:To clean up the surface of a photoreceptor without detaching the photoreceptor from a copying machine frame by attaching a housing fitted with a cleaning member movably to a supporting body provided in such a direction that it comes close to and to space the photoreceptor. CONSTITUTION:The electrostatic charger rail 11 of an electrostatic charger for transfer is utilized as the supporting body of a photoreceptor cleaning tool 14 and the supporting body 13 is lowered as shown by an arrow A' to insert and mount the fitting part 21 of the photoreceptor cleaning tool 14 along the electrostatic charger rail 11. Then, when the supporting body 13 is lifted as shown by an arrow A, a cleaning cloth 17 and rubber plates 18 and 19 are pressed against the surface part to be cleaned of the photoreceptor 1 with proper press- contacting force. When the photoreceptor 1 is rotated in this state, large dirt such as a developer on the photoreceptor surface is removed by the rubber 18 firstly, dirt due to the filming of the developer and ionized bodies generated by the electrostatic charger is removed by the cleaning cloth 17, and cleaning liquid and adhesives are removed in succession by the rubber plate 19.
摘要翻译：目的：通过将装有清洁构件的壳体可移动地附接到沿着靠近并使感光体空间设置的支撑体上，将感光体的表面从复印机框架上拆下来，来清洁感光体的表面。构成：用于转印的静电充电器的静电充电器轨道11用作感光体清洁工具14的支撑体，并且支撑体13如箭头A'所示降低，以插入和安装感光体的装配部分21 清洁工具14沿着静电充电器轨道11.然后，当如箭头A所示地提升支撑体13时，清洁布17和橡胶板18和19被压在感光体1的被清洁表面部分上，适当的压力接触力。当感光体1在该状态下旋转时，首先通过橡胶18除去感光体表面上的显影剂等大污物，由清洁布除去显影剂和静电充电器产生的电离体造成的污垢 17，并且通过橡胶板19连续地除去清洗液和粘合剂。

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