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1. 发明专利

DE4100150C2 未知
公开(公告)号：DE4100150C2
公开(公告)日：2003-02-27
申请号：DE4100150
申请日：1991-01-04
申请人： HITACHI KOKI KK , HITACHI LTD
发明人： OHSHIMA MINORU , MORIO SHUICHI , SAITOH SUSUMU , NAMIKAWA OSAMU , OBARA KAZUTOSHI , SEINO MINORU , MOCHIZUKI TAKESHI , NAKURA MAKOTO , ARIMOTO AKIRA , KASAI MASUO
IPC分类号： G02B26/10 , B41J2/44 , G02B26/08 , G02B26/12 , H04N1/047 , H04N1/113 , H04N1/12 , H04N1/19 , G05D3/12 , G06K15/12 , B41J2/455
摘要： A beam position control apparatus in which a light beam is led into a light detector from a light generating source through a movable reflector and positioning of the light beam is performed by a servo control circuit for feeding a signal from the light detector back to the movable reflector, comprises: an oscillator for oscillating in response to an initializing signal and moving the movable reflector to move the beam onto the light detector; and a control switch for separating the oscillator and the movable reflector from each other in response to the signal from the light detector, the oscillator and the control switch being arranged in the servo control circuit.

2. 发明专利

DE4100150A1 未知
公开(公告)号：DE4100150A1
公开(公告)日：1991-08-14
申请号：DE4100150
申请日：1991-01-04
申请人： HITACHI KOKI KK , HITACHI LTD
发明人： OHSHIMA MINORU , MORIO SHUICHI , SAITOH SUSUMU , NAMIKAWA OSAMU , OBARA KAZUTOSHI , SEINO MINORU , MOCHIZUKI TAKESHI , NAKURA MAKOTO , ARIMOTO AKIRA , KASAI MASUO
IPC分类号： G02B26/10 , B41J2/44 , G02B26/08 , G02B26/12 , H04N1/047 , H04N1/113 , H04N1/12 , H04N1/19
摘要： A beam position control apparatus in which a light beam is led into a light detector from a light generating source through a movable reflector and positioning of the light beam is performed by a servo control circuit for feeding a signal from the light detector back to the movable reflector, comprises: an oscillator for oscillating in response to an initializing signal and moving the movable reflector to move the beam onto the light detector; and a control switch for separating the oscillator and the movable reflector from each other in response to the signal from the light detector, the oscillator and the control switch being arranged in the servo control circuit.

3. 发明专利

CA1220260A PAPER HOLE DETECTING APPARATUS 未知
公开(公告)号：CA1220260A
公开(公告)日：1987-04-07
申请号：CA422572
申请日：1983-02-28
申请人： HITACHI KOKI KK
发明人： HISHINUMA HIROSHI , MIYASAKA MASAO , OKADA KENJI , MORIO SHUICHI
IPC分类号： B41J11/42 , B65H7/14 , G01N21/86
摘要： PAPER HOLE DETECTING APPARATUS An apparatus for detecting a feeding of paper has a reflector which is mounted on a bottom of a switch lever. The switch lever, in turn, is slidably mounted on a black paper retainer plate which has poor reflecting properties, and a light emitting element emits light which is reflected by the paper towards a light receiving element. When paper which has good reflecting properties is being fed, the reflector is slid so that it is no longer located opposite the light emitting element, and any light passing through holes in the paper is thus poorly reflected by the black paper retainer plate, thereby enabling the light receiving element to readily detect the presence or absence of a hole in the paper. However, when the paper being fed has poor reflecting properties, the reflector is slid so that it is located opposite the light emitting element, and any light passing through one of the holes in the paper is strongly reflected by the reflector. Therefore, again, the light receiving element can readily detect the presence or absence of the holes.

4. 发明专利

DE3307001A1 未知
公开(公告)号：DE3307001A1
公开(公告)日：1983-09-15
申请号：DE3307001
申请日：1983-02-28
申请人： HITACHI KOKI KK
发明人： HISHINUMA HIROSHI , MIYASAKA MASAO , OKADA KENJI , MORIO SHUICHI
IPC分类号： B41J11/42 , B65H7/14 , B65H43/08 , B41L39/14
摘要： An apparatus for detecting a feeding of paper has a reflector which is mounted on a bottom of a switch lever. The switch lever, in turn, is slidably mounted on black paper retainer plate which has poor reflecting properties, and a light emitting element emits light which is reflected by the paper towards a light receiving element. When paper which has good reflecting properties is being fed, the reflector is slid so that it is no longer located opposite the light emitting element, and any light passing through holes in the paper is thus poorly reflected by the black paper retainer plate, thereby enabling the light receiving element to readily detect the presence or absence of a hole in the paper. However, when the paper being fed has poor reflecting properties, the reflector is slid so that it is located opposite the light emitting element, and any light passing through one of the holes in the paper is strongly reflected by the reflector. Therefore, again, the light receiving element can readily detect the presence or absence of the holes.

5. 发明专利

DE19904745A1 Computer image printing process spans two or more paper web pages 未知
公开(公告)号：DE19904745A1
公开(公告)日：1999-08-12
申请号：DE19904745
申请日：1999-02-05
申请人： HITACHI KOKI KK
发明人： KATADA MASAHITO , MORIO SHUICHI , SUEMATSU SHIGENORI , SHOJI YUTAKA , TAKAHAGI HIROSHI
IPC分类号： B41J2/51 , B41J3/28 , B41J3/407 , B41J11/42 , B41J19/96 , B65B61/02
摘要： A process generates a picture on a web consisting of sheets of paper running through e.g. a computer printer head. The image incorporates a sign (200,200a) which is positioned between the end of the first section (1) of the image, and before the commencement of the second part (2) of the image. In this interval, the paper feed system registers an empty line. During the printing process, the registered interval is used to interrupt the paper feed.

6. 发明专利

JPH03225315A BEAM POSITION CONTROLLER 失效
公开(公告)号：JPH03225315A
公开(公告)日：1991-10-04
申请号：JP1904690
申请日：1990-01-31
申请人： HITACHI KOKI KK , HITACHI LTD
发明人： OSHIMA MINORU , SAITO SUSUMU , MORIO SHUICHI , NAMIKAWA OSAMU , KIYONO MINORU , MOCHIZUKI KENJI , NAGURA MAKOTO , OBARA KAZUTOSHI , ARIMOTO AKIRA , KASAI MASUO
IPC分类号： G02B26/10 , B41J2/44 , G03G15/04
摘要： PURPOSE:To easily vary a beam interval by composing the beam position controller of 1st and 2nd photodetectors, and arranging plural 2nd photodetectors and switching beam positions. CONSTITUTION:The upper half of a figure is a servo control circuit which controls a beam 1, which is held halfway between the 1st photodetectors 31 and 32. The lower half of the figure is a servo control which controls a beam 2 and consists of five 2nd photodetectors 51 - 55. The respective intervals of the detectors 51 - 55 are made equal to the difference between beam intervals P1 from the 1st photodetector 31. The outputs the photodetectors 51 - 55 are converted by a converter 21 into voltages, which are inputted to sum output devices 56 - 59; and the signals are selected by a control switch 60 and fed back to a difference output device 61. At this time, the control switch 60 performs switching to the outputs of sum output devices 56 and 58, and 57 and 59 with a switching signal 61 and the signal from a difference output device 23 is passed through an amplifier 27 to hold a beam 2 on the photodetector by moving a movable reflector 6.

7. 发明专利

JPH03225314A BEAM POSITION CONTROLLER 失效
公开(公告)号：JPH03225314A
公开(公告)日：1991-10-04
申请号：JP1904590
申请日：1990-01-31
申请人： HITACHI KOKI KK , HITACHI LTD
发明人： OSHIMA MINORU , MORIO SHUICHI , SAITO SUSUMU , NAMIKAWA OSAMU , OBARA KAZUTOSHI , KIYONO MINORU , MOCHIZUKI KENJI , NAGURA MAKOTO , ARIMOTO AKIRA , KASAI MASUO
IPC分类号： G02B26/10 , B41J2/44 , G02B26/08 , G02B26/12 , H04N1/047 , H04N1/113 , H04N1/12 , H04N1/19
摘要： PURPOSE:To eliminate the influence of disturbance such as temperature variation and vibration providing an oscillator and a control switch in a beam position control circuit. CONSTITUTION:The oscillator 8 is oscillated with an initializing signal to move movable reflectors 4a and 4b, and thus beams 5a and 5b are deflected and become easy to strike a photodetector, which detects the beams 5a and 5b to perform servo control. Phase advancing circuits 33 and 34 which compensates the phase delay in sample holding circuits 35 and 36 are provided to compensated the phase delay. Position errors of the individual detectors and characteristic errors in manufacture are adjusted by voltage adjusting means 27 and 28, so beam positions can accurately by adjusted. The phase delay circuits 35 and 36 for a low frequency range are provided to improve the gain in the low frequency range, so shifts of the beam positions can be suppressed.

8. 发明专利

JPH02109069A SCANNING OPTICAL SYSTEM FOR ELECTROPHOTOGRAPHIC DEVICE 失效
公开(公告)号：JPH02109069A
公开(公告)日：1990-04-20
申请号：JP26150388
申请日：1988-10-19
申请人： HITACHI KOKI KK , HITACHI LTD
发明人： OBARA KAZUTOSHI , NAMIKAWA OSAMU , TSUJI YASUYUKI , MORIO SHUICHI , OSHIMA MINORU , SAITO SUSUMU , ARIMOTO AKIRA
IPC分类号： G02B26/10 , B41J2/44 , G03G15/04
摘要： PURPOSE:To eliminate the misalignment for a printing start by calibrating a signal transfer time difference between each signal line caused by a propagation delay by a delaying circuit provided on each printing signal line and adjusting the transfer time, in a laser beam printer using plural light sources. CONSTITUTION:When a beam detector 7 is scanned by a laser light, a reference signal from the detector 7 is received by a control device 1, and a printing signal A and a printing signal B are sent out simultaneously to a signal line 9 and 10, respectively. In this case, the signal A and B generate a time difference (t) by a propagation delay of the respective signal lines, but allowed to reach as they are a delaying circuit 2 and 3, respectively. In this case, when the delaying circuit is set in advance so that the quicker signal is delayed by the time difference (t), the time difference between each signal is negated by passing through the delaying circuit, and the signals are sent out simultaneously to signal lines C, D again. Accordingly, laser devices 4, 5 are driven simultaneously, and laser beams 13, 14 are also emitted simultaneously. In such a way, the misalignment for a printing start on the surface of a drum 8 is eliminated.

9. 发明专利

JPH11227226A INK SUPPLYING DEVICE FOR PRINTER 失效
公开(公告)号：JPH11227226A
公开(公告)日：1999-08-24
申请号：JP3090398
申请日：1998-02-13
申请人： HITACHI KOKI KK
发明人： KONDO NORIMASA , MORIO SHUICHI , SUEMATSU SHIGENORI , TAKANO YASUO
IPC分类号： B41J2/175 , B41J2/015
摘要： PROBLEM TO BE SOLVED: To provide an ink supplying device having a simple structure by omitting a motor and an electric controller for the motor in place of the ink supplying device for a conventional printer requiring a complicated controller. SOLUTION: This printer comprises an image base 2 which is vertically standing, an ink jet head 10 which is opposed to the image base and moves in horizontal and vertical directions, an ink tank 4 forming the ink jet head 10 and an ink supplying means provided at an arbitrary end section of the image base 2. The ink supplying means is constituted of a lever, a recess formed on the top of the lever, a fulcrum for rotating the lever, a cover and an ink supplying guide so that solid ink is supplied to the ink tank 4 by moving the ink jet head 10 back and forth with respect to the surface of the image base.

10. 发明专利

JPH05305714A 失效
公开(公告)号：JPH05305714A
公开(公告)日：1993-11-19
申请号：JP11114992
申请日：1992-04-30
申请人： HITACHI KOKI KK
发明人： KONDO NORIMASA , MATSUOKA TAKAO , SONOYA MASAYUKI , TORII TAKUJI , HAYASHI KAZUNOBU , MORIO SHUICHI , TOMITA SHINYA
IPC分类号： B41J2/165 , B41J2/18 , B41J2/185
摘要： PURPOSE:To effect a highly efficient suction purging by a method wherein, at the time of suction, a contact part is brought into contact with the face of a nozzle, a nozzle head is slidably moved on a shaft by a guide pin and the nozzles arranged on the nozzle head are successively subjected to suction purge. CONSTITUTION:When a contact rubber 3 is kept away from a nozzle head 8 after ink suction, the hole of the contact rubber 3 is opened to the outside air, so that the ink which has been drawn in a body 1 is carried out from a drain hole 34. A solenoid is energized to force out an arm plate 15 in the direction of the arrow by its repelling force, so that the contact rubber 3 is brought into contact with the front face of the nozzle head 8. A drain hole 34 provided at the upper part of the body 1 is closed with a rubber cover 22. At this time, a guide pin 2 has not yet moved on the upper part of the nozzle head.

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