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1. 发明专利

JP4246115B2 Document reading apparatus and an image forming machine equipped with the document reader 有权
公开(公告)号：JP4246115B2
公开(公告)日：2009-04-02
申请号：JP2004168735
申请日：2004-06-07
申请人：シャープ株式会社
发明人：健二中西 , 裕典小笠原 , 康路山地 , 康博高井
IPC分类号： G03B27/62 , H04N1/00 , H04N1/04 , H04N1/10 , H04N1/107
摘要： PROBLEM TO BE SOLVED: To provide an original reading device which makes operability well when performing rotation operation of an original pressing cover, performs well pressing an original to an original table by the original pressing cover, and can secure reading precision of the original image, and provide an image forming machine with the original reading device. SOLUTION: The machine individually and independently installs the original pressing cover 7 which presses the original by "sheet fixing method", and an original carrying unit 4 which carries the original by "sheet moving method", and at the same time, comprises a locking mechanism 8 which can switch a non-coupling condition and a coupling condition. An open operation is made possible by only the original pressing cover as the non-coupling condition when the original is placed by the "sheet fixed method". Weight of a structural component for pressing the original, is made large by preparing the coupling condition after closure of the original pressing cover 7. COPYRIGHT: (C)2006,JPO&NCIPI

2. 发明专利

JP3538569B2 Manual paper feeding mechanism of the image forming apparatus 有权
公开(公告)号：JP3538569B2
公开(公告)日：2004-06-14
申请号：JP14341999
申请日：1999-05-24
申请人：シャープ株式会社
发明人：裕典小笠原
IPC分类号： B65H3/56 , G03G15/00

3. 发明专利

JP4510899B2 Sheet conveying apparatus, a document processing apparatus and an image forming apparatus using the same 有权
公开(公告)号：JP4510899B2
公开(公告)日：2010-07-28
申请号：JP2008003976
申请日：2008-01-11
申请人：シャープ株式会社
发明人：裕典小笠原 , 泰正森本 , 正人為平 , 嘉儀白石
IPC分类号： B65H29/52 , B65H5/06
CPC分类号： H04N1/00578 , B65H29/14 , B65H29/52 , B65H2301/1321 , B65H2301/33312 , B65H2601/10 , B65H2801/06 , G03G15/605 , H04N1/00567 , H04N1/0058 , H04N1/00602 , H04N1/00631 , Y10S271/902

4. 发明专利

JP3664864B2 Image forming apparatus 失效
公开(公告)号：JP3664864B2
公开(公告)日：2005-06-29
申请号：JP30674697
申请日：1997-11-10
申请人：シャープ株式会社
发明人：裕典小笠原 , 史郎若原
IPC分类号： B41J2/385 , B41J2/415 , G03G15/05 , G03G15/34
CPC分类号： B41J2/4155 , G03G15/346 , G03G2217/0025

5. 发明专利

JP4906933B2 Image reading device, and an image forming apparatus provided with the image reading device 有权
公开(公告)号：JP4906933B2
公开(公告)日：2012-03-28
申请号：JP2010016206
申请日：2010-01-28
申请人：シャープ株式会社
发明人：健二中西 , 正博井元 , 裕典小笠原 , 正一福留 , 光晴芳本
IPC分类号： H04N1/19 , G06T1/00 , H04N1/04 , H04N1/40 , H04N1/401
CPC分类号： H04N1/2032 , G03G15/50 , G03G15/60 , H04N1/12 , H04N1/193 , H04N1/407 , H04N1/4097
摘要： An image reading apparatus of the present invention includes a photoelectric transducer that performs reading scanning along a main scanning line and reads an original, the image reading apparatus obtaining a white shading level of pixels based on an output level of the photoelectric transducer obtained when a reference white is read, obtaining a black shading level of the pixels based on an output level of the photoelectric transducer obtained when a black reference is read or obtained in a dark condition, and correcting the output level of the photoelectric transducer obtained when an original image is read with the use of the white shading level and the black shading level, and the image reading apparatus further comprising a correction unit that obtains a variation amount of the white shading level between a pixel and other pixels in the vicinity of that pixel for each of pixels on the main scanning line, determines whether the variation amount exceeds a pre-set threshold value, and when the correction unit determines that the variation amount exceeds the threshold value, corrects the black shading level of the pixel subject to that determination to increase the black shading level.

6. 发明专利

JP4860556B2 Automatic document feeder, the image reading apparatus having the same, and an image forming apparatus having these 有权
公开(公告)号：JP4860556B2
公开(公告)日：2012-01-25
申请号：JP2007162873
申请日：2007-06-20
申请人：シャープ株式会社
发明人：裕典小笠原 , 泰正森本 , 正人為平 , 嘉儀白石
IPC分类号： H04N1/00 , B65H29/58 , B65H29/60 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To facilitate the visual recognition of a discharged original in an automatic document feeder apparatus for carrying an original so as to read images at a read position. SOLUTION: The automatic document feeder apparatus 300 is provided with a first carrying path 380 for guiding the original from a separation paper feed unit 354 to an inversion unit 356 so that the front and rear are not inverted, a second carrying path 382 for inverting the front and rear of the original switched back and inverted in the inversion unit 356 and guiding it to an original read position, and a third carrying path 388 for guiding the original from the original read position to a discharge unit 352, and thus a read original mounting base 350 and the discharge unit 352 can be arranged on both sides of the original image read position. Further, a fourth carrying path 390 for guiding the original from the third carrying path 388 to the inversion unit 356 and a fifth carrying path 392 branched from the first carrying path 380 to the second carrying path 382 may be included. COPYRIGHT: (C)2009,JPO&INPIT

7. 发明专利

JP4095054B2 Document reader 有权
公开(公告)号：JP4095054B2
公开(公告)日：2008-06-04
申请号：JP2004303577
申请日：2004-10-18
申请人：シャープ株式会社
发明人：浩俊家村 , 裕典小笠原 , 伸一郎平岡
IPC分类号： H04N1/00 , G03G15/00
CPC分类号： H04N1/00551 , H04N1/00543 , H04N1/12
摘要： A document reader includes an exterior panel covering a region of a document feed path including a second image read position from outside. The document reader also includes a first open/close member forming a region of the exterior panel including a portion opposed to the image read position. The document reader further includes a second open/close member positioned inwardly of the first open/close member to define a region of the document feed path including the image read position. The first and second open/close members are supported at respective different fulcrums for opening/closing movement about respective shafts extending perpendicularly to the document feed direction, thereby shielding the second image read position from extraneous light.

8. 发明专利

JP5592292B2 Document feeder and an image forming apparatus 有权
公开(公告)号：JP5592292B2
公开(公告)日：2014-09-17
申请号：JP2011045801
申请日：2011-03-03
申请人：シャープ株式会社
发明人：聡一高田 , 正人為平 , 裕典小笠原 , 泰正森本 , 利樹扇田 , 浩史中谷
IPC分类号： B65H29/70 , B65H29/58 , H04N1/00
摘要： PROBLEM TO BE SOLVED: To provide a document feeding device capable of restricting outbreaks of bias feeding of documents in a switch-back operation when a driven roller and a driving roller are separated from each other.SOLUTION: The document feeding device 30 includes: a conveying passage 33a for conveying a document G to a reading position P1; a conveying passage 33b for conveying the document G, which is conveyed to the reading position P1, to a delivery tray 32; a conveying passage 33c for returning the document G, which has passed through the reading position P1, to the conveying passage 33a; a conveying roller 37 including a driving roller 37a and a driven roller 37b; and a deforming member 38. The driven roller 37b moves between a contact position, in which the driven roller 37b is brought into contact with the driving roller 37a, and a separating position, in which the driven roller 37b is separated from the driving roller 37a. The deforming member 38 is interlocked with the driven roller 37b, and when the driven roller 37b is positioned in the separating position, the deforming member 38 projects into the conveying passage 33b, and when the driven roller 37b is positioned in the contact position, the deforming member 38 retreats from the conveying passage 33b.

9. 发明专利

JP4381338B2 Image scanner 有权
公开(公告)号：JP4381338B2
公开(公告)日：2009-12-09
申请号：JP2005088962
申请日：2005-03-25
申请人：シャープ株式会社
发明人：裕典小笠原 , 健二田中
IPC分类号： H04N1/04 , G06T1/00 , H04N1/00
摘要： PROBLEM TO BE SOLVED: To provide an image reading apparatus capable of keeping a read magnification of an image almost the same for both front and rear sides of an original even when a passing speed of the original at read positions for both the front and the rear sides is secularly changed due to wear of carrier rollers or the like. SOLUTION: A first image read section X1 and a second image read section X2 read a reference image on both the front and the rear sides of a reference original conveyed on a conveying path 3 to acquire first and second reference images, and compare the reference images to set conveying speeds of conveyor rollers 4a, 4b, 4c. COPYRIGHT: (C)2007,JPO&INPIT

10. 发明专利

JP3664945B2 Image forming apparatus 有权
公开(公告)号：JP3664945B2
公开(公告)日：2005-06-29
申请号：JP2000149976
申请日：2000-05-22
申请人：シャープ株式会社
发明人：稔冨依 , 裕典小笠原 , 康路山地 , 英樹後藤 , 久和楠田
IPC分类号： G03G21/00 , G03G15/16 , G03G21/10 , G03G21/14

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