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41. 发明专利

JPH01273072A ELECTROPHOTOGRAPHIC COPYING DEVICE 失效
公开(公告)号：JPH01273072A
公开(公告)日：1989-10-31
申请号：JP10306688
申请日：1988-04-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWANO YUZO , FUJIWARA HIROSHI , SATO NORIHIDE
IPC分类号： G03G15/08
摘要： PURPOSE:To prevent a toner discharge roller from being scratched, and to eliminate the creation of shavings by providing guide members on the top surface of the toner discharge roller, and designing in such a way that a stirring member and toner discharge roller don't come into contact with each other. CONSTITUTION:Via a revolving shaft 17 and sprockets 18(a) and 18(b), motion transmitting members 16(a) and 16(b) rotate in the form of a loop between a shaft 17 and fixed shaft 19. Together with that, the stirring member 20 moves along almost the entire bottom of a toner hopper 9 and along the guide members 33 a and 33 b of the toner discharge roller 14, so that it stirs toner 8 and also carries away the toner 8 toward the roller 14. As the roller 14 rotates, the toner 8 sticking on the surface of the roller 14 is sent to a toner discharge hole 15 to be fed to a developing vat 12. Thus, the surface of the roller 14 is not scratched and the deterioration of printing quality, caused by shavings, is prevented since the stirring member does not come into contact with the roller 14.

42. 发明专利

JPS6324651A RESISTOR TRIMMING DEVICE 失效
公开(公告)号：JPS6324651A
公开(公告)日：1988-02-02
申请号：JP16835286
申请日：1986-07-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TANAKA SATOSHI , ISHIMOTO KAZUMI , FUJIWARA HIROSHI , HARA YOSHIBUMI
IPC分类号： H01L27/01 , H01C17/22 , H05K1/16
摘要： PURPOSE:To efficiently perform the trimming operation of a high density circuit ranging over a plurality of cards and to eliminate manual operations such as the replacement of a probe. CONSTITUTION:A laser beam is scanned by the laser beam optical system 6 of a resistor trimming device, and a substrate is positioned by an X-Y table 14. A means A for changing probe cards is arranged between said optical system 6 and the table 14, and the probe cards 10a-10c which are positioned on a probe pin 23 are changed over by an NC-controlled motor 11. Then, the probe cards 10a-10c are changed over to the prescribed position by the means A using the rail 12 and the pin 23 connected to the motor 11, the conductor connected to a measuring instrument through the pin 23 is trimmed, and the efficiency of said trimming can be improved.

43. 发明专利

JP2000293288A METHOD AND DEVICE FOR MULTIWINDOW DISPLAY AND RECORDING MEDIUM 失效
公开(公告)号：JP2000293288A
公开(公告)日：2000-10-20
申请号：JP10105799
申请日：1999-04-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJIWARA HIROSHI
IPC分类号： G06F3/048 , G06F3/00 , G06F3/14
摘要： PROBLEM TO BE SOLVED: To operate a focus window by an overlap multiwindow system while viewing multiple windows hidden behind the focus window at the same time. SOLUTION: As the window focus is moved by user's mouse operation, a focus window history recording part 102 and a focus time recording part 103 record focus times by windows. According to the recorded information, a window display state determination part 104 changes the displays of the respective windows from a translucent state to a transparent state successively and the focus window is operated while the display contents of the windows are viewed at the same time.

44. 发明专利

JPH03263072A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH03263072A
公开(公告)日：1991-11-22
申请号：JP6323590
申请日：1990-03-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OGATA YOSHIHIRO , FUJIWARA HIROSHI , SEII MASAHIRO , MATSUO TAKANORI
IPC分类号： G03G15/16
摘要： PURPOSE:To prevent the deterioration of image quality caused by density unevenness on the image by bringing a photosensitive belt into contact with a recording medium on a line which links between the center of a transfer roller and the center of a photosensitive belt roller. CONSTITUTION:An intermediate transfer roller 17 is disposed on a position where the intermediate transfer belt 9 and an organic photosemiconductor (OPC) belt 1 may come into contact with each other on a line which links between the center of the intermediate transfer roller 17 and the center of an OPC driving roller 2. Then, when toner adhering on the OPC belt 1 are transferred to the intermediate transfer belt 9 by the intermediate transfer roller 17, the intermediate transfer belt 9 is pressed against the OPC belt 1 by the intermediate transfer roller 17, and also, as to the intermediate transfer roller 17, the intermediate transfer belt 9 and the OPC belt 1 come into contact with each other on the line which links between the center of the intermediate transfer roller 17 and the center of the OPC driving roller 2. Then, even in the case that mechanical vibration arises, the contact/uncontact point of the OPC belt 1 and the intermediate transfer belt 9 is not moved, so that the contact area can be kept constant. Thus, the occurrence of the density unevenness on the image can be prevented.

45. 发明专利

JPH03216686A ELECTROPHOTOGRAPHIC DEVICE 失效
公开(公告)号：JPH03216686A
公开(公告)日：1991-09-24
申请号：JP1314690
申请日：1990-01-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAGUCHI HIROSHI , ISOBE YASUHIKO , FUJIWARA HIROSHI , KAWANO YUZO
IPC分类号： G03G15/08
摘要： PURPOSE:To eliminate the need for an expensive toner remaining quantity sensor by warning a decrease in remaining toner when the toner amount of a developing means never recovers to a 1st specific value, and reversing an agitation member until a 2nd specific value is reached. CONSTITUTION:A toner concentration sensor 31 measures the amount of toner 8 in a developing device 7 which supplies the toner 8 to a photosensitive body 1. Then when the amount of toner 8 decreases below the 1st specific value, a toner discharge roller 14 is rotated and the agitation member 20 is moved in a specific direction; a motor controller 34 is provided which warns that the remaining quantity of the toner 8 is small when the amount of toner in the developing device 7 does not recover to the 1st specific value regardless of the rotation of the toner discharge roller 14 and reverses the agitation member 20 until the 2nd specific value is reached. Consequently, the shortage of toner can be known and the inexpensive electrophotographic device is obtained without requiring any expensive toner remaining quantity sensor.

46. 发明专利

JPH02272473A ELECTROPHOTOGRAPHIC DEVICE 失效
公开(公告)号：JPH02272473A
公开(公告)日：1990-11-07
申请号：JP9352689
申请日：1989-04-13
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SATO NORIHIDE , KAWANO YUZO , FUJIWARA HIROSHI
IPC分类号： G03G15/08
摘要： PURPOSE:To cause toner to fall over a wide range in a developing vat by arranging a toner scraping plate between a pair of edges of a toner discharge port, permitting the upper edge to cut into a toner discharge roller, and providing a control means for varying the rotation direction of the toner discharge roller. CONSTITUTION:At the same time that the toner discharge roller 14 rotates, a motion transmitting members 16a and 16b rotate by means of motor power in the form of a loop between the rotary shaft 17 and the fixed shaft 19 via the rotary shaft 17 and sprockets 18a and 18b. Since the upper edge of the toner scraping plate 15c, provided along the longitudinal direction of the toner discharge port 15, cuts into the toner discharge roller 14, toner falls on both sides of the toner scraping plate as the toner discharge roller rotates; the toner is caused to fall over a wide range in the developing vat. After a motor 22 rotates the prescribed number of times, the direction of the rotation is reversed, therefore toner block does not occur at a specific place in a toner hopper.

47. 发明专利

JPH01287586A ELECTROPHOTOGRAPHIC COPYING MACHINE 失效
公开(公告)号：JPH01287586A
公开(公告)日：1989-11-20
申请号：JP11724688
申请日：1988-05-13
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWANO YUZO , FUJIWARA HIROSHI , SATO NORIHIDE
IPC分类号： G03G15/08
摘要： PURPOSE:To eliminate an expensive toner residual sensor by providing a toner concentration sensor measuring toner volume, signaling that less toner remains when the toner volume in a developing means is less than a prescribed value and reversing the moving direction of an agitating member. CONSTITUTION:When the agitating member 20 reverses in response to an initial detecting signal from the toner concentration sensor 31, the toner 8 blocking in a toner hopper 9 falls down to the developing means, and an image forming action is possible for a while. Consequently, by the initial detecting signal from the toner concentration sensor 31, a user can realize that the less toner 8 remains in the toner hopper 9, and by a second detecting signal, he can realize out of toner. Thus, the toner concentration sensor 31 can be used for detecting that the less tone 8 remains in the toner hopper 9 and that toner runs out.

48. 发明专利

JPH01109373A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH01109373A
公开(公告)日：1989-04-26
申请号：JP26856787
申请日：1987-10-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OGAWA KATSUMI , KAWANO YUZO , FUJIWARA HIROSHI
IPC分类号： G03G15/04 , G03G15/043 , G03G21/00 , G03G21/08
摘要： PURPOSE:To reduce the surface potential of an image carrying member and to prevent the increase of the toner consumption by providing a power source which supplies a current to an electrifier and a developing device and providing a destaticizing light source, which projects light to the image carrying member for a certain time after the stop of current supply from the power source, between the electrifier and the developing device. CONSTITUTION:When jam or the like occurs, a photosensitive member 1 is rotated in the direction of an arrow A after current supply to an electrifier 2 and a developing device 11 is simultaneously stopped. At this time, light is projected from a destaticizing light source 38 on the surface of the photosensitive member 1 until the part of the photosensitive member 1 which faces the electrifier 2 at the time of stop of current supply reaches the position of the developing device 11. That is, since light is projected on the surface of the photosensitive member 1 for a certain time after current supply is stopped by the occurrence of jam or the like, the surface potential of the photosensitive member 1 is reduced to the potential after exposure to reduce the potential difference between the member 1 and the developing device 11, and toner is not stuck to the surface of the photosensitive member 1. Consequently, the increase of the toner consumption, that of the quantity of waste toner, and scattering of carrier from a sleeve are prevented.

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