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1. 发明专利

JP2000069283A IMAGE DATA PROCESSING UNIT 失效
公开(公告)号：JP2000069283A
公开(公告)日：2000-03-03
申请号：JP25330098
申请日：1998-08-24
申请人： RICOH KK
发明人： OSHITA MASAKAZU
IPC分类号： H04N1/40 , G06T5/20 , G06T5/30
摘要： PROBLEM TO BE SOLVED: To reduce the total memory capacity of a memory block for storing correction data used for jaggy correction. SOLUTION: The processing unit is provided with a window 73, that extracts data of each dot in a prescribed area around a dot being an object of bit map data, a pattern recognition section 74 that recognizes the shape of the line segments of a border between a black dot area and a white dot area, for generating code information consisting of plural bits denoting a characteristic of the shape of the line segments, and a memory block 75 that reads and outputs correction data by using the code information as an address. An image phase correction data setting circuit 78 generates image phase correction data, corresponding to image density correction data read from the memory block as to each dot based on information on a bit denoting an upward slant to the right or a downward slant to the right in a slant of the line segment, a bit denoting whether the line segment is close to a horizontal line segment or a vertical line segment, a bit denoting whether a target pixel is a white pixel or a black pixel, and a bit which denotes whether the position of the target pixel is above or below the line segment, when the target pixel is a white pixel in the code information consisting of plural bits denoting the characteristic of the line segment generated by the pattern recognition section.

2. 发明专利

JPH1158835A IMAGE DATA PROCESSING APPARATUS 失效
公开(公告)号：JPH1158835A
公开(公告)日：1999-03-02
申请号：JP23780697
申请日：1997-08-18
申请人： RICOH KK
发明人： OSHITA MASAKAZU
IPC分类号： B41J2/485 , G03G15/00 , G06T5/20 , G06T7/60 , H04N1/409 , G06T9/20
摘要： PROBLEM TO BE SOLVED: To achieve the enhancement of image quality by performing the jaggy correction of a contour line with respect to image data developed in a bit map form and to realize the reduction of the capacity of a memory block at the same time. SOLUTION: A pattern confirming part 74 recognizes the segment shape of the boundary part of the black and white dot regions of the image data extracted through a window 73 not only to form code data of a plurality of bits showing characteristics of the segment shape confirmed with respect to objective dots but also to output a discrimination signal showing whether dots are necessary for correction. A code data converting means 78 outputs the dots unnecessary for correction corresponding to the judge signal so as to convert them to predetermined code data while outputs dots necessary for correction as code data formed by the pattern recognition part 74. A memory block 75 addresses the code data outputted from the code data outputted from the code data converting means 78 to read the preliminarily stored correction data to output the same.

3. 发明专利

JPH10257326A IMAGE DATA PROCESSOR 失效
公开(公告)号：JPH10257326A
公开(公告)日：1998-09-25
申请号：JP5457897
申请日：1997-03-10
申请人： RICOH KK
发明人： OSHITA MASAKAZU
IPC分类号： B41J2/485 , B41J2/44 , G03G15/00 , G06T5/20 , H04N1/409
摘要： PROBLEM TO BE SOLVED: To simplify the selection of correction data and to reduce the capacity of memory for storing the correction data, when using multilevel image data as the correction data. SOLUTION: The image data expanded in the form of bit map are extracted through a window 73 and with respect to an attention dot at its center, the form of line segment at the border part of black and white dot regions is recognized by a pattern-recognition part 74 and replaced with the code information of plural bits. While utilizing that code information, it is discriminated whether or not the dot requires correction and for the correction required dot, the correction is performed by reading the correction data corresponding to this code information out of a memory block 75. In the image data which is expanded in the form of bit map, an edge discriminating means 78 discriminates whether each black dot is a right end dot, left end dot, isolated dot or any other dot in the main scanning direction of image data. According to the discriminated result, the correction data are determined for a phase showing the plotting position of image data.

4. 发明专利

JPH10226101A IMAGE FORMING APPARATUS 失效
公开(公告)号：JPH10226101A
公开(公告)日：1998-08-25
申请号：JP2921097
申请日：1997-02-13
申请人： RICOH KK
发明人： OSHITA MASAKAZU
IPC分类号： B41J2/44 , B41J2/45 , B41J2/455 , H04N1/23
摘要： PROBLEM TO BE SOLVED: To reduce a cost of a whole apparatus by simplifying an LD writing control section thereof. SOLUTION: When a printer controller 54 transfers printing image (binary image data) to an LD control section 52, an LD writing control section 51 transfers LD compulsive lighting signals for detecting main scanning synchronism to the LD control section 52 via a multiple control bus as signals WD0-7 in synchronism with a signal LDCLK of a clock for multiple-value controlling. As a result, a main scanning synchronizing signal is returned from the LD control section 52, then the LD writing control section 51 outputs a transfer beginning signal in response to a returning timing. The printer controller 54 transfers printing image data to the LD control section 52 as /LDON via a binary control bus 55 without being in synchronism with a clock in response to the output timing (returning timing of the main scanning synchronizing signal).

5. 发明专利

JPH09175706A PAPER DISCHARGE DEVICE 失效
公开(公告)号：JPH09175706A
公开(公告)日：1997-07-08
申请号：JP35447695
申请日：1995-12-27
申请人： RICOH KK
发明人： TAKECHI RYUTA , TOMITA HIROSHI , SHOJI KATSUNORI , OSHITA MASAKAZU , NINOMIYA SHIGERU , MATSUMOTO KOJI , MARUYAMA KIMIKO
IPC分类号： G03G15/00 , B65H29/20 , B65H39/02
摘要： PROBLEM TO BE SOLVED: To efficiently discharge transfer paper sent into a paper discharge device from image forming devices even if paper sheet carrying speeds of the image forming devices to be connected are different from each other. SOLUTION: A paper discharge device is constituted so as to output transfer paper from plural image forming devices 6 and 7 connected to paper discharge trays of the plural image forming devices 6 and 7 by collating and sorting them or the like. In this case, the device is provided with plural stack parts 13a and 13b which are arranged in response to the respective image forming devices 6 and 7 and temporarily hold the transfer paper from the respective image forming devices, plural carrying-in passages 12a and 12b to carry the transfer paper from the respective image forming devices 6 and 7 to the respective stack parts and plural carrying-out passages 14a and 14b merged with each other so as to carry out the transfer paper of the respective stack parts from a single carrying-out port 15, and carrying speed of the transfer paper between a merging point 16 of the carrying-out passages and the carrying-out port 15 is set equal to the fastest speed among paper discharge speed of the image forming devices 6 and 7 or faster than that.

6. 发明专利

JPH09171445A IMAGE FORMING DEVICE SYSTEM 失效
公开(公告)号：JPH09171445A
公开(公告)日：1997-06-30
申请号：JP34934895
申请日：1995-12-19
申请人： RICOH KK
发明人： OSHITA MASAKAZU , MARUYAMA KIMIKO , SHOJI KATSUNORI , TAKECHI RYUTA , NINOMIYA SHIGERU , TOMITA HIROSHI , MATSUMOTO KOJI
IPC分类号： B41J29/38 , G06F3/12
摘要： PROBLEM TO BE SOLVED: To provide an image forming device system with which the efficiency of paper eject processing operation is improved after a printing operation corresponding to each job by simplifying the control of job distribution from a printer server device to an image forming device when the clogging of transfer paper is generated at any arbitrary image forming device of the image forming device system. SOLUTION: When jamming (paper clogging) is generated during the execution of job 3 at an image forming device 2c and the execution of printing operation at the image forming device 2c is disabled, the error information of jam generation is transmitted from the image forming device 2c t6 a print server device 4. Corresponding to this error information, the print server device 4 transmits the stop of printing operation to the image forming device 2c and at the same time, the job 3 stored in a memory device 3 is executed by selecting any one image forming device excepting for the image forming device 2c and transmitting that job to that selected image forming device.

7. 发明专利

JPH09168086A IMAGE DATA PROCESSING UNIT 失效
公开(公告)号：JPH09168086A
公开(公告)日：1997-06-24
申请号：JP34696195
申请日：1995-12-14
申请人： RICOH KK
发明人： OSHITA MASAKAZU
IPC分类号： B41J2/44 , B41J2/485 , H04N1/40
摘要： PROBLEM TO BE SOLVED: To improve the image quality of an image expanded in a bit map and to correct image data satisfying reduction in toner consumption. SOLUTION: A dot extract section 72 and a window 73 extract dots of a prescribed range around a noted dot and samples them. A pattern recognition section 74 checks a characteristic of a linear shape of the noted dot based on the sampled dots and provides an output of the result with code information. A discrimination section 747 discriminates the presence of necessity of jaggy correction and converts the code information based on the discrimination result. A code information replacement section 79 converts the code information based on the color of the noted dot and the surrounding dots and provides an output of the result as an address to a pattern memory 75.

8. 发明专利

JPH08214166A IMAGE DATA PROCESSING UNIT 失效
公开(公告)号：JPH08214166A
公开(公告)日：1996-08-20
申请号：JP1495595
申请日：1995-02-01
申请人： RICOH KK
发明人： OSHITA MASAKAZU
IPC分类号： B41J2/44 , B41J2/485 , B41J21/00 , H04N1/409
摘要： PURPOSE: To improve image quality of image data, to have provision for high resolution processing and to reduce a data quantity required to have been stored in a memory in advance to the utmost. CONSTITUTION: A pattern recognition section 74 recognizes a segment shape of a border of white level dots in a black level dot area of image data expanded in a bit map shape and replaces the characteristic of a segment shape recognized for each required dot with bit code information. Then together with the code information, code information representing to which image area a dot is to be located or same image data expanded in a bit map shape by a FIFO memory 72 are generated repetitively. Then any of code information representing order number of generation is selected by a selector 81 and the result is used for an address to provide an output of correction data from a memory block 75. The data are used to correct the image.

9. 发明专利

JPH08201936A PRE-PROCESSOR FOR ORIGINAL READING 失效
公开(公告)号：JPH08201936A
公开(公告)日：1996-08-09
申请号：JP1025495
申请日：1995-01-26
申请人： RICOH KK
发明人： MARUYAMA KIMIKO , TOMITA HIROSHI , OSHITA MASAKAZU , NINOMIYA SHIGERU , TAKECHI RYUTA , SHOJI KATSUNORI
IPC分类号： G03B27/62 , B65H39/11
摘要： PURPOSE: To enable reserving a job by depressing a start key after placing an original on an insertion port without waiting for the end of the job even in the case a scanner is in use. CONSTITUTION: The processor is provided with an original port 23 for inserting the original, an original sheet number measuring means for measuring the number of original sheets, a stacker 24 for transiently storing the original, a 1st carrying path for carrying the original from the original port 23 to the stacker 24 and a 2nd carrying path 25 for carrying the original one by one from the stacker 24 to an original reader 21.

10. 发明专利

JP2003259127A IMAGE DATA PROCESSOR 审中-公开
公开(公告)号：JP2003259127A
公开(公告)日：2003-09-12
申请号：JP2002057564
申请日：2002-03-04
申请人： RICOH KK
发明人： OSHITA MASAKAZU
IPC分类号： B41J2/44 , G06T5/30 , H04N1/409
摘要： PROBLEM TO BE SOLVED: To make uniform the line thickness ratio of vertical and horizontal line segments by increasing the thickness of the horizontal line segments in a subscanning direction without spoiling the shape of image data expanded into a bit map. SOLUTION: An image data processor has a pattern recognition part 41, a memory block 42, and a vertical subscanning counter 45. The processor when recognizing the line segment shape of the border part between a black pixel area and a white pixel of image data and generating code information representing features of the recognized line segment shape to selectively correct the recognized line segment shape into a thicker line discriminates whether a pixel constituting the line segment shape is a pixel to be made thicker according to a portion of the code information. At this time, when the code information indicates that the pixel is a white pixel one line above or below the black pixel of the horizontal line segments to be made thick, a portion of the code information is replaced with code information corresponding to a count value from a vertical subscan counter part 45 and used as an address to read corresponding correction data out of the memory block 42. COPYRIGHT: (C)2003,JPO

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