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1. 发明专利

JP2002337349A IMAGING APPARATUS 失效
公开(公告)号：JP2002337349A
公开(公告)日：2002-11-27
申请号：JP2001148984
申请日：2001-05-18
申请人： SHARP KK
发明人： UEDA SUEHIRO , MORIMOTO KENICHI , YONETANI YOSHIFUMI , NAGANO YUSUKE , OGURA JUNJI
IPC分类号： B41J2/165 , B41J2/01 , G03G15/22
摘要： PROBLEM TO BE SOLVED: To favorably maintain the reproducibility of color images by preventing ink from drying in an ink head and nozzles from clogging because of adhesion of dust, and reduce running costs by eliminating an unnecessary maintenance process for the ink head. SOLUTION: In the case where the ink head 53a is not capped during a waiting time for an imaging request after a power supply is inputted, a maintenance unit 70 is raised to cap the ink head 53a (s1 and s2). The capping the ink head 53a by the maintenance unit 70 is continued until an imaging process of an ink jet system is started at a second imaging part 50 (s14). The ink head 53a is capped by the maintenance unit 70 not only during the waiting time for the imaging request after the power supply is inputted, but also during a read process of original images (s4-s11) and an imaging process of an electrophotographic system at a first imaging part 20 (s12 and s13).

2. 发明专利

JP2002116678A IMAGE FORMING DEVICE 失效
公开(公告)号：JP2002116678A
公开(公告)日：2002-04-19
申请号：JP2000308361
申请日：2000-10-06
申请人： SHARP KK
发明人： YONETANI YOSHIFUMI , SATOU YUKIYA , OGURA JUNJI , NAGANO YUSUKE , KITAJIRI MASAHIRO
IPC分类号： G03G21/14 , G03G15/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide an image forming device by which processing speed is changed over by using one driving source and also an excellent image quality is obtained independently of the processing speed. SOLUTION: The image forming device is provided with one motor to generate driving force in common to a photoreceptor 7 to which the driving force is transmitted in accordance with image forming and a fixing roller 14a driven at the speed different from that at the photoreceptor 7 in accordance with the image forming for instance in an image forming part to form an unfixed image on paper P. A driving force transmission system for the fixing roller 14a transmits the driving force to the fixing roller 14a so that the rate of change of the speed occurring at the photoreceptor 7 is different from that of the speed occurring at the fixing roller 14a before and after changing the processing speed are made different. Thus, the speed difference between the photoreceptor 7 and the fixing roller 14a is kept constant independently of the processing speed, so that the excellent image quality is always obtained.

3. 发明专利

JPH10127090A MOTOR CURRENT CONTROLLER AND CURRENT CONTROLLER FOR MIRROR MOTOR IN EXPOSING UNIT FOR COPY MACHINE 失效
公开(公告)号：JPH10127090A
公开(公告)日：1998-05-15
申请号：JP27599196
申请日：1996-10-18
申请人： SHARP KK
发明人： OGURA JUNJI , TANIGUCHI HIDEO , TOYODA MASASHI
IPC分类号： G03G15/04 , G03G15/043 , H02P7/06
摘要： PROBLEM TO BE SOLVED: To set a current limit level arbitrarily depending on the rotational speed by converting digital signals corresponding to a plurality of current limit levels into analog signals and limiting the current to be supplied to a motor based on the analog signal. SOLUTION: A motor drive IC 51 comprises a current limit means delivering a motor current limit signal (a) to a mirror motor 50, and a rotational direction control means delivering a forward/reverse switching signal (b). A CPU 52 has a function as a digital signal generation means and a digital signal conversion means and delivers a voltage reference (c) and a control signal (d) to the motor drive IC 51. The current limit level is varied depending on acceleration/ deceleration of the rotational speed of the mirror motor 50 which is thereby operated stably with a correct current at all times without generating heat.

4. 发明专利

JP2001282059A POWER SOURCE CIRCUIT 失效
公开(公告)号：JP2001282059A
公开(公告)日：2001-10-12
申请号：JP2000100790
申请日：2000-04-03
申请人： SHARP KK
发明人： IWABAYASHI KAZUYA , KUNIKAWA NORIHIDE , IMAGAWA TAKAYUKI , ITO MANABU , UEDA SUEHIRO , OGURA JUNJI
IPC分类号： B41J29/38 , G03G21/00 , G06F1/32 , H02J1/00
摘要： PROBLEM TO BE SOLVED: To provide a power source circuit capable of making power consumption in a standby mode in a device such as a copying machine lower than that in the conventional manner. SOLUTION: This power source circuit for the device having an ordinary operation mode and plural operation modes including the standby mode in which the power consumption is lowered to wait for the designation of power supply is provided with a main power source circuit 2 supplying power to the respective parts of the device, a control part 6 to which the power is supplied from the circuit 2 so as to control the operation of the entire device, a sub power source circuit 3 supplying the minimum power to the device when the standby mode is set and a switching means 4 turning on/off the circuit 2. Then, the circuit 2 is turned off when the standby mode is set.

5. 发明专利

JP2001261192A IMAGE FORMING DEVICE 失效
公开(公告)号：JP2001261192A
公开(公告)日：2001-09-26
申请号：JP2000078997
申请日：2000-03-21
申请人： SHARP KK
发明人： MORIMOTO KENICHI , KOBAYASHI HOAKI , OGURA JUNJI , TAKATANI HIROSHI , UEDA SUEHIRO , KUNIKAWA NORIHIDE
IPC分类号： G03G21/00 , B65H7/14
摘要： PROBLEM TO BE SOLVED: To simplify the structure for sensing of a plurality of sheet detecting sensors S1-S6 arranged in a sheet carrying passage in an image forming device such as copying machine or the like, and also minimize the possibility of radio interference. SOLUTION: The photodiode PD of each sheet detecting sensor S1-S6 is driven with a modulation signal of different frequency by an oscillating circuit OS, and the frequency component in the signal is analyzed in a receiving circuit REC to judge the detection result of each sheet detecting sensor S1-S6. A sensor harness line is jointly used to reduce the sensor harness lines to be distributed to three of (+)- and (-)-power source lines L1 and L2 and a sensor output line L3. Accordingly, the distribution can be simplified to simplify the structure for sensing, and the possibility of radio interference can be also minimized.

6. 发明专利

JP2003226059A IMAGING APPARATUS 审中-公开
公开(公告)号：JP2003226059A
公开(公告)日：2003-08-12
申请号：JP2002026918
申请日：2002-02-04
申请人： SHARP KK
发明人： MAEDA KENICHI , UEDA SUEHIRO , OGURA JUNJI
IPC分类号： B41J29/38 , G03G21/00 , H01H3/28 , H01H50/00
摘要： PROBLEM TO BE SOLVED: To provide an imaging apparatus in which power consumption can be reduced furthermore at the time of waiting mode by reducing power required for sustaining the waiting mode or the display thereof. SOLUTION: The imaging apparatus comprises an electromagnetic switch mechanism 61 consisting of a permanent magnet 62, an electromagnet including a moving yoke 63 and a coil 64, and a leaf spring 65 wherein the electromagnetic switch mechanism 61 moves the electromagnet by reversing the direction of a current being fed to the coil 64 at the time of switching from the operating state to the waiting state and at the time of switching from the waiting state to the operating state. At the time of waiting state, the electromagnet is brought in contact with the permanent magnet 62 and the state is sustained with a magnetic force thus turning off a power save switch 56. At the time of operating state, the electromagnet is detached from the permanent magnet 62 and the state is sustained with the resilient force of the leaf spring 65 thus turning on the power save switch 56. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2002301838A IMAGING APPARATUS 失效
公开(公告)号：JP2002301838A
公开(公告)日：2002-10-15
申请号：JP2001107249
申请日：2001-04-05
申请人： SHARP KK
发明人： SATOU YUKIYA , MORIMOTO KENICHI , TAKATANI HIROSHI , KITAJIRI MASAHIRO , OGURA JUNJI
IPC分类号： B41J3/54 , B41J2/01 , B41J2/165 , B41J2/175 , B41J11/02 , B41J13/02 , B41J19/18 , B65H5/02 , G03G15/22
摘要： PROBLEM TO BE SOLVED: To provide an imaging apparatus made compact which eliminates damaging to papers to be generated when ink jet printing and electrophotographic printing are mixed and can shorten a time before papers are discharged. SOLUTION: The imaging apparatus has both an electrophotographic system and an ink jet system, is capable of monochromic printing and color printing, and is capable of single side printing and both side printing. Arrangement positions (stop positions) 241-244 of an ink carriage 24 used at a time of printing by the ink jet system are made to be variably selected and set according to a printing paper size and a printing condition.

8. 发明专利

JP2002149004A COLOR IMAGE FORMING APPARATUS 失效
公开(公告)号：JP2002149004A
公开(公告)日：2002-05-22
申请号：JP2000344806
申请日：2000-11-13
申请人： SHARP KK
发明人： MURAKAMI SATORU , UEDA SUEHIRO , MORIMOTO KENICHI , OGURA JUNJI
IPC分类号： B41J2/01 , B41J11/00 , G03G15/20 , G03G15/22 , G03G21/00 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide a color image forming apparatus capable of realizing miniaturization and the high efficiency of printing processing. SOLUTION: This color image forming apparatus is provided with an electrophotographic system printing part 2 performing printing by an electrophotographic system and an ink jet system printing part 3 performing printing by an ink jet system. Then, it is provided with one common fixing and drying device 4 having a fixing function for fixing toner on recording paper P where printing by the electrophotographic system is performed and a drying function for drying ink on the paper P where printing by the ink jet system is performed.

9. 发明专利

JP2000002853A DEFLECTION SCANNING DEVICE 失效
公开(公告)号：JP2000002853A
公开(公告)日：2000-01-07
申请号：JP16891098
申请日：1998-06-16
申请人： SHARP KK
发明人： YOSHINAGA HAJIME , AOKI KOJI , OGURA JUNJI
IPC分类号： G02B26/12 , G02B26/10 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a deflection scanning device capable of easily changing a light quantity of a laser beam to be imaged on a surface of a photoreceptor without great change in the constitution, and being applied with advantage for different image forming devices. SOLUTION: Relating to this deflection scanning device a rotary polygon mirror 5 with plural reflecting interfaces 5a-5f formed at an equiangular intervals in the main direction is irradiated with the light emitted from a light source 1, and deflects the reflected light of each reflecting interface 5a-5f by the rotation of the polygon mirror 5 for scanning, and forms an image on the surface of a photoreceptor drum 11. In this case, the reflecting interfaces 5a-5f of the rotary polygon mirror 5 are composed by combination of reflecting interfaces having at least two or more kinds of reflectances.

10. 发明专利

JP2002211043A IMAGING APPARATUS 失效
公开(公告)号：JP2002211043A
公开(公告)日：2002-07-31
申请号：JP2001006743
申请日：2001-01-15
申请人： SHARP KK
发明人： KUNIKAWA NORIHIDE , MURAKAMI SATORU , KITAJIRI MASAHIRO , OGURA JUNJI , NAGANO YUSUKE
IPC分类号： B41J3/54 , B41J2/01 , G03G15/00 , G03G15/22 , G03G21/00 , H04N1/23 , H04N1/29
摘要： PROBLEM TO BE SOLVED: To surely prevent a printing deviation between printing by an electrophotographic output mechanism part and printing by an ink jet output mechanism part. SOLUTION: The imaging apparatus has a structure in which the electrophotographic output mechanism part 12 is arranged on the same paper transfer path 16, and the ink jet output mechanism part 21 is arranged to the downstream side of the electrophotographic output mechanism part 12. When an image is formed by the electrophotographic output mechanism part 12 on a recording paper 13, the electrophotographic output mechanism part 12 forms also a control marking to a non image region. There is provided a detecting means 22 for detecting the control marking of the printed image by the electrophotographic output mechanism part 12 after the image is fixed. The ink jet output mechanism part 21 specifies a printing position for a printing image on the basis of the detected result of the control marking by the detecting means 22.

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