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公开(公告)号：JP2002240318A
公开(公告)日：2002-08-28
申请号：JP2001038475
申请日：2001-02-15
Applicant: CANON KK
Inventor： IMANAKA YOSHIYUKI , KASAMATSU TAKEHIKO , ARA YOJI , OSUMI KOICHI , INOUE TADASHI , KOIKE YASUSHI , TSUNAMOTO KATSUAKI , KITAHATA KENJI , OIDE TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To sustain a high image quality by enhancing the quality of reused ink. SOLUTION: Ink ejected from the ejection opening 13 of an ink jet recording head 1 is collected in an ink collecting tub 106 and sucked by means of a suction pump 2 to flow into an ink collecting passage 18. Pressure of the collected ink is measured by means of a sensor 7 before the ink passes through a filter 6. Measured pressure of ink in the ink collecting passage 18 is then expressed in terms of the flow rate of ink by means of a calculating unit 9. If the flow rate determined through measurement is lower than a first reference value as the use limit of the filter 6, i.e., a limit value of the flow rate of ink, the calculating unit 9 urges replacement of the filter 6 on an LED 17.
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公开(公告)号：JP2001315359A
公开(公告)日：2001-11-13
申请号：JP2000133921
申请日：2000-05-02
Applicant: CANON KK
Inventor： KASAMATSU TAKEHIKO , OIDE TAKAHIRO , INOUE TADASHI , ARA YOJI , IMANAKA YOSHIYUKI , OSUMI KOICHI , TSUNAMOTO KATSUAKI , KOIKE YASUSHI , KITAHATA KENJI
Abstract: PROBLEM TO BE SOLVED: To solve the problem that a quantity of ink passing a filter increases proportional to the elongation of a product life and impurities pile up in the filter in accordance with the lapse of use years to clog the filter and obstructs the circulation of the ink, whereby the ink cannot be normally supplied to a recording head, an image quality is deteriorated and the recording head is broken because of null discharging of the ink. SOLUTION: The ink jet recording apparatus comprises the recording means for discharging the ink thereby recording on recording sheets, and an ink-storing means for storing the ink to be supplied to the recording means. An ink- collecting means is set for collecting the ink discharged from ink discharge ports of the recording means and supplying the ink again to the ink-storing means. A route in which the ink is supplied to the recording means from the storing means is made an ink supply route, and an ink channel from the ink discharge ports to the ink-storing means is made an ink collection route. The first filter is set in the ink supply route and the second filter is installed in the ink collection route.
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公开(公告)号：JP2001315358A
公开(公告)日：2001-11-13
申请号：JP2000133920
申请日：2000-05-02
Applicant: CANON KK
Inventor： OSUMI KOICHI , KOIKE YASUSHI , TSUNAMOTO KATSUAKI , INOUE TADASHI , ARA YOJI , KASAMATSU TAKEHIKO , KITAHATA KENJI , IMANAKA YOSHIYUKI , OIDE TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To solve the problem that a quantity of ink passing a filter increases proportional to the elongation of a product life and impurities pile up in the filter in accordance with the lapse of use years to clog the filter and obstruct the circulation of the ink in many cases, whereby the ink cannot be normally supplied to a recording head, an image quality is deteriorated and eventually the recording head is broken in some cases because of null discharging of the ink. SOLUTION: The ink jet recording apparatus has the recording means for discharging the ink thereby recording to recording sheets, an ink-storing means for storing the ink to be supplied to the recording means, an ink-collecting means for collecting the ink discharged from ink discharge ports of the recording means and supplying the ink again to the ink-storing means, a viscosity reducing means for reducing a viscosity of the collected ink, a detachable foreign matter-removing means for removing foreign matters included in the collected ink, and a flowmeter for measuring a flow rate of the collected ink.
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公开(公告)号：JP2001315357A
公开(公告)日：2001-11-13
申请号：JP2000133919
申请日：2000-05-02
Applicant: CANON KK
Inventor： ARA YOJI , KOIKE YASUSHI , OIDE TAKAHIRO , INOUE TADASHI , TSUNAMOTO KATSUAKI , KASAMATSU TAKEHIKO , OSUMI KOICHI , KITAHATA KENJI , IMANAKA YOSHIYUKI
Abstract: PROBLEM TO BE SOLVED: To solve the problem that, when the ink discharged for recording out of ink discharge ports of a recording head through an ink cartridge or the ink discharged for discharge recovery is to be reused, a filter set to remove impurities such as dust or the like in the ink easily cloggs with increasing channel resistance of the ink to hinder the operation of a system, and consequently it is economically inferior to replace the filter with dirty hands and printing is interrupted for a long time. SOLUTION: The ink jet recording apparatus has the recording means for discharging the ink, thereby recording to sheets, an ink-storing means for storing the ink to be supplied to the recording means, an ink-collecting means for collecting the ink discharged from the ink discharge ports of the recording means and supplying the ink again to the ink-storing means, and a foreign matter-removing means for removing foreign matters included in the collected ink. The ink jet recording apparatus is provided with means for removing foreign matters accumulated in the foreign matter-removing means.
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公开(公告)号：JPH10187137A
公开(公告)日：1998-07-14
申请号：JP33465197
申请日：1997-12-04
Applicant: CANON KK
Inventor： FURUYA YOJI , INOUE TADASHI , YASUDA MASANAO
Abstract: PROBLEM TO BE SOLVED: To make possible a document display without sense of incongruity by scrolling a display image in the upper or lower direction at a moving amount based on the height of a character in a raw containing the character of an adjacent row when the character of the adjacent row exist on the position exceeding the upper or lower frame of the display image. SOLUTION: For instance, when a cursor 54 exists on the uppermost step position of the display picture 51, when a joy stick is operated to display the upper row coming off form the picture, a CPU detects a row pitch L (decided by a maximum character height +α in the row that the cursor 54 exists) from the position where the cursor 54 exists to its upper row, and detects the maximum character height H in the row to be displayed. Then, a value that the maximum character height in the row that the cursor 54 exists is subtracted from the sum of the obtained L and H is made an amount to be scrolled. Then, lower scroll is performed based on the obtained amount. In such a manner, since the scroll display is performed based on the height of the character, the document display without the sense of incongruity becomes possible.
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Patent Agency Ranking
公开(公告)号：JPH0981547A
公开(公告)日：1997-03-28
申请号：JP23121495
申请日：1995-09-08
Applicant: CANON KK
Inventor： INOUE TADASHI , NAKANISHI KEIKO
Abstract: PROBLEM TO BE SOLVED: To discriminate a cursor position on a picture to easily discriminate a document area as the editing object where the cursor is placed by providing a display control means which displays the document area, where the cursor discriminated by a discrimination means is placed, and other document areas so that they can be distinguished from each other. SOLUTION: Plural document areas include at least header areas 200, text areas 201, or footer areas 202. A display control means displays character uninputted parts by blank sheet codes in the case of the document area, where the cursor is placed, and displays character uninput parts by spaces in the case of other document areas. Since a cursor 203 is placed in the text area 201 (as the editing object area) now, character uninput parts of the text area 201 are displayed by dots corresponding to blank sheet codes. Meanwhile, character uninputted parts are spaces in the header area 200 and the footer area 202 (other than the editing object area) where the cursor 203 is not placed.
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公开(公告)号：JPH08202694A
公开(公告)日：1996-08-09
申请号：JP1366295
申请日：1995-01-31
Applicant: CANON KK
Inventor： INOUE TADASHI
Abstract: PURPOSE: To efficiently perform a character string retrieving process while discriminating between a desired character string and a fuzzy character string as to a character string retrieved according to a desired character string inputted from in edited document information. CONSTITUTION: Which of a retrieval object character string and a fuzzy character string the character string retrieved by a CPU1 is, is discriminated and the display form of the retrieved character string is switched on a display device 6 according to which of the retrieval object character string and fuzzy character string the retrieved character string is.
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公开(公告)号：JPH07131565A
公开(公告)日：1995-05-19
申请号：JP29746793
申请日：1993-11-02
Applicant: CANON KK
Inventor： INOUE TADASHI , SATOU RIYOUICHIROU , OYA TAKASHI , MAKITA TOSHIYUKI , HOSODA TAKASHI , TSUCHIYA MAKOTO , NIWA NORIYUKI
Abstract: PURPOSE:To efficiently supply power to an external device by controlling an auxiliary power supply means supplying power to the external device based on the discrimination result of the form of reception information. CONSTITUTION:When an incoming call is made to the peripheral equipment E through a communication line 30, a line control part 9 executes a FAX reception program by the command of a control part 1. Thus, an auxiliary power control part 28 operates and power is supplied from the auxiliary power supply part 26 to a host computer HP-H through a power line 36. The control part 9 connects the line 30 to the equipment E. When the incoming call is discriminated to be FAX information, a command is outputted to HP-H through an input/ output interface 6, and the reception processing of FAX information is executed. When the incoming call is discriminated to be telephone information, the control part 28 operates and the supply of power from the auxiliary power supply part 26 to HP-H through the power line 36 is interrupted.
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公开(公告)号：JPH0514488A
公开(公告)日：1993-01-22
申请号：JP14904291
申请日：1991-06-21
Applicant: CANON KK
Inventor： INOUE TADASHI , MURAYAMA MICHIHIRA , YASUDA MASANAO , SUGIURA KENICHIRO , YAMAGUCHI YOSHINORI , KOBAYASHI HIDEYUKI
Abstract: PURPOSE:To realize the information processing unit in which a desired incoming call condition is set and waste of recording paper and memory areas are prevented. CONSTITUTION:An identification information list of an opposite station whose data communication is permitted or inhibited is edited over a full screen by using a CRT and a key board in advance and the result is registered in a memory, the identification information to be sent by a procedure signal sent from an opposite station and the relevant identification information list are collated (step S3) in the arrival of a call (step S1) and the communication pre-procedure (step S2) to decide whether or not the incoming call is accepted (step S4). When the arrival of the call is accepted, the communication processing is continued (steps S5-S7), and when the arrival of the call is rejected, an abnormal end procedure is implemented (step S10) and then the line is interrupted (step S9).
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公开(公告)号：JPH04342360A
公开(公告)日：1992-11-27
申请号：JP11363391
申请日：1991-05-20
Applicant: CANON KK
Inventor： YAMAGUCHI YOSHINORI , MURAYAMA MICHIHIRA , YASUDA MASANAO , SUGIURA KENICHIRO , INOUE TADASHI , KOBAYASHI HIDEYUKI
Abstract: PURPOSE:To detect the abnormality of image data caused by the abnormality of a scanner on the transmission side by detecting an abnormal image pattern generated by image read error on the transmission side and outputting an alarm in the case of receiving images. CONSTITUTION:The received image data are recorded from a printer 6 through a RAM 5. The image data received at that time are returned to the binary image data and developed in the work area of the RAM 5 after demodulation and decode at a MODEM 4. For example, when dust is stuck to the scanner on the transmission side, black longitudinal lines are formed in the sub scan direction over the entire size of the image under reception. A CPU 1 inspects whether prescribed picture elements in scan lines are continued and turned to black data over the sub scan direction of one page in the binary image data of the RAM 5 or not. Then, when any abnormal image pattern is discovered, a message is transmitted form the reception side to the transmission side so as to alarm the abnormality of the scanner.
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