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1. 发明专利

JP2009126144A IMAGE FORMING DEVICE 审中-公开
公开(公告)号：JP2009126144A
公开(公告)日：2009-06-11
申请号：JP2007306016
申请日：2007-11-27
申请人： RICOH KK
发明人： NIIHARA TAKAYUKI , NARUSE SHINICHIRO
IPC分类号： B41J29/00 , B41J2/01
摘要： PROBLEM TO BE SOLVED: To solve the problem that there is a risk that a part of a flexible harness which can not be fixed between a carriage and a device body, hangs down by its own weight and interferes with nearby parts. SOLUTION: A holding member 52 holding a flexible harness 51 is provided with projections 56, on a plurality of positions in the outlet 55 of the flexible harness 51, which project from the supporting surface 54a of the lower flange part 54 and serve as ribs which support the lower end of the flexible harness 51 in a position higher than the other part. In the outlet 55 of the flexible harness 51, the upper flange part 53 and the projections 56 serve as a regulating part which regulates vertical directions of the flexible harness 51, so that an interval H between the upper flange part 53 and projections 56 is formed narrower than a width of the height direction of the flexible harness 51 to keep the flexible harness 51 held by being curved in the width direction. COPYRIGHT: (C)2009,JPO&INPIT

2. 发明专利

JP2009126116A LIQUID SUCTION DEVICE, MAINTENANCE RECOVERY DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：JP2009126116A
公开(公告)日：2009-06-11
申请号：JP2007305265
申请日：2007-11-27
申请人： RICOH KK
发明人： HIRUMA TETSUYA
IPC分类号： B41J2/18 , B41J2/185
摘要： PROBLEM TO BE SOLVED: To sufficiently exhibit a recovery function of a recording head by preventing ink from flowing from a suction cap into a flexible tube communicating with a discharge port in a period other than a sucking operation period and preventing the flexible tube from being clogged due to an increase in ink viscosity. SOLUTION: In a non-active state where the ink droplets are not ejected from the recording head 34 and not sucked, the flow path of a suction pump 120 is opened while putting a cap 92a on the recording head 34, and the flow path of the flexible tube 119 communicating between the cap 92a and the suction pump 120 is closed by an eccentric cam 160, then, the ink is prevented from flowing from the cap 92a into the flexible tube 119, consequently, the flow path is prevented from being clogged due to the increase in liquid viscosity in the flexible tube 119. COPYRIGHT: (C)2009,JPO&INPIT

3. 发明专利

JP2009126101A IMAGE FORMING APPARATUS, PRINTING OUTPUT CONTROL METHOD, AND PROGRAM 审中-公开
公开(公告)号：JP2009126101A
公开(公告)日：2009-06-11
申请号：JP2007304885
申请日：2007-11-26
申请人： RICOH KK
发明人： ISHIKURA KOJI , HARADA TOMOSHI
IPC分类号： B41J29/38 , G03G21/00 , G03G21/14 , G06F3/12 , H04N1/00
摘要： PROBLEM TO BE SOLVED: To output sample printing, which allows a user to surely check on a print quality degradation printing interruption may cause, without the user's effort. SOLUTION: A control flow is started when an printing operation for a print job to be processed is ready to start. At first, it is confirmed whether an apparatus in the present time is in a resumption condition after printing interruption (S201), and if the apparatus is in the resumption condition, it is further checked whether the printing interruption is due to a specific cause which may change an apparatus condition (occurrence of paper end, jam, component failure, toner end or the like) (S202). Sample printing is made only when the interruption is due to the specific cause (S203). COPYRIGHT: (C)2009,JPO&INPIT

4. 发明专利

JP2009126049A IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：JP2009126049A
公开(公告)日：2009-06-11
申请号：JP2007303157
申请日：2007-11-22
申请人： RICOH KK
发明人： SUZUKI KAZUYOSHI , KAWASHIMA YASUHIRO , KUBO ISAMU
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which is capable of stabilizing a supply amount, without making the supply time from a main tank to a subtank longer. SOLUTION: In the image forming apparatus, when a supply pump is driven by a pump driving motor, to supply ink from the main tank to the subtank, the pump driving motor is drive controlled so that after a filler detection sensor detecting that the ink amount of the subtank is at a predetermined level is turned on, a voltage applied to the pump driving motor is reduced to decrease a liquid supply speed by the supply pump and liquid supply by the supply pump is stopped when a permissible time Tt1 elapses from when the ink amount is at the predetermined level. COPYRIGHT: (C)2009,JPO&INPIT

5. 发明专利

JP2009126032A IMAGE FORMATION DEVICE 审中-公开
公开(公告)号：JP2009126032A
公开(公告)日：2009-06-11
申请号：JP2007302627
申请日：2007-11-22
申请人： RICOH KK
发明人： NARUSE SHINICHIRO , NIIHARA TAKAYUKI
IPC分类号： B41J2/175 , B41J2/01
摘要： PROBLEM TO BE SOLVED: To provide an image formation device which can prevent the damage which results from two or more supply tubes being caught by a welding position gap when pushing them into the grooved part of the tube stationary portion of a carriage in the case of the tubes concerned being unified by welding. SOLUTION: A supply tube group 61 consisting of the supply tubes 60a to 60e which compose feeding courses for feeding inks to sub-tanks from an ink cartridge is arranged in a strip form, welded and unified between the ink cartridge and the tube stationary portion of the carriage (area A). In the part (area B) inserted in the groove formed in the tube stationary portion provided in the carriage, the welding of the maximum welding tube number of the supply tube group is carried out as two tubes. The supply tube group is separated into individual supply tubes 60a to 60e in the part (area C) wherein the tubes are distributed from the tube stationary portion to each sub-tank. COPYRIGHT: (C)2009,JPO&INPIT

6. 发明专利

JP2008187244A ORIGINAL SIZE DETECTOR AND IMAGE READER 审中-公开
公开(公告)号：JP2008187244A
公开(公告)日：2008-08-14
申请号：JP2007016617
申请日：2007-01-26
申请人： RICOH KK
发明人： ARAI HIROSHI
IPC分类号： H04N1/04 , G03B27/50 , G06T1/00 , H04N1/10 , H04N1/107
摘要： PROBLEM TO BE SOLVED: To provide an original size detector that restrains a decrease in productivity because of detection operation and an influence of a cost increase as much as possible while detecting the size of an original not only in a horizontal scanning direction but also in a vertical scanning direction, and achieves an user-friendly man-machine interface, and to provide an image reader. SOLUTION: In the image reader, a lamp is lit for a time width required for determining the vertical scanning size which is required for reading an original. For example, an image reading means is positioned at the maximum size of the original read size before detecting the size, moves to the original read start position from the maximum size position when an open/close detection means changes from opening to closing, reads the original in that interval, and turns on the lamp only from the maximum to the minimum value of the size to be subjected to vertical scanning detection. COPYRIGHT: (C)2008,JPO&INPIT

7. 发明专利

JP2008030275A THERMAL RECORDING MATERIAL 审中-公开
公开(公告)号：JP2008030275A
公开(公告)日：2008-02-14
申请号：JP2006205119
申请日：2006-07-27
申请人： RICOH KK
发明人： IKEDA TOSHIAKI , KADOTA YASUHIRO , KANEKO GIICHI
IPC分类号： B41M5/333 , B41M5/28 , B41M5/30 , B41M5/337 , B41M5/40 , C09B67/20 , C09B67/42
摘要： PROBLEM TO BE SOLVED: To provide a thermal recording material which has a high sensitivity, causes little background fogging and has chemical resistance (particularly plasticizer resistance) and is free from discoloration with time of a low-energy printing coloring part and discoloration thereof due to light. SOLUTION: The thermal recording material contains 4-hydroxy-4'-allyloxydiphenylsulfone, 4,4'-dihydroxydiphenylsulfone and a diphenylsulfone derivative expressed by general formula (I) in a thermal coloring layer on a substrate. COPYRIGHT: (C)2008,JPO&INPIT

8. 发明专利

JP2007002059A WATER-BASED INK COMPOSITION FOR INKJET RECORDING 审中-公开
公开(公告)号：JP2007002059A
公开(公告)日：2007-01-11
申请号：JP2005182076
申请日：2005-06-22
申请人： RICOH KK
发明人： HIGETA SHIGERU , OSADA NOBUTAKA
IPC分类号： B41J2/01 , B41M5/00 , C09D11/00 , C09D11/322 , C09D11/324 , C09D11/326 , C09D11/38
摘要： PROBLEM TO BE SOLVED: To provide an ink which is a pigment ink excellent in light resistance and water resistance and is excellent in storage stability and to provide a water-based ink composition which does not cause plugging due to the drying of ink at ejection nozzle tips and therefore always ensures good ejection response and ejection stability. SOLUTION: The water-based ink composition is one essentially consisting of water, a water-soluble organic solvent, and a pigment and containing a compound represented by formula (I) (wherein M is an alkali metal, an ammonium group, or an organoammonium group; and n is 0 or 1). COPYRIGHT: (C)2007,JPO&INPIT

9. 发明专利

JP2007001757A SHEET-LIKE MEDIUM PUNCHING MECHANISM, SHEET-LIKE MEDIUM PUNCHING DEVICE, POST-PROCESSING DEVICE, AND IMAGE FORMING DEVICE 审中-公开
公开(公告)号：JP2007001757A
公开(公告)日：2007-01-11
申请号：JP2005187021
申请日：2005-06-27
申请人： RICOH KK
发明人： TAMURA MASAHIRO
IPC分类号： B65H37/04 , B65H29/58 , B65H43/00
摘要： PROBLEM TO BE SOLVED: To provide a sheet-like medium punching mechanism with high efficiency and high reliability, capable of solving a problem of retreat of a paper sheet fed before even if a paper sheet fed later catches up with the paper that has stayed in a punching means part for punching process, while responding to high productivity with simple structure. SOLUTION: A carrying means 6 for carrying the sheet-like medium, a reversing means 41 for reversing the sheet-like medium carried by the carrying means, and a punching means 14 for punching the sheet-like medium carried from the reversing means are provided. Therefore, the paper sheet fed before during the punching process can be overlapped with the paper sheet fed later. COPYRIGHT: (C)2007,JPO&INPIT

10. 发明专利

JP2007001699A POST-PROCESSING DEVICE FOR PAPER SHEETS 审中-公开
公开(公告)号：JP2007001699A
公开(公告)日：2007-01-11
申请号：JP2005182649
申请日：2005-06-22
申请人： RICOH KK
发明人： HIRABAYASHI TAKESHI , NAKADA MASATO
IPC分类号： B65H31/36
摘要： PROBLEM TO BE SOLVED: To provide a post-processing device for paper sheets equipped with a plurality of beating rollers capable of performing the aligning operation by allowing the beating rollers to handle the sheets having different sizes, paper sorts, and different manner of folding the sheets in sharing according to their places easiest to establish alignment and of conducting the alignment of the sheet bundle with a high accuracy. SOLUTION: The post-processing device A for paper sheets to be installed in an image forming device B additionally for performing a post-processing such as folding, binding, etc. of sheets fed from the image forming device has a plurality of rotors 34 and 35 with their rotary shafts arranged in different conditions, wherein the rotors 34 and 35 draw back the sheets fed onto an aligning tray 31 to the direction opposite the transporting direction and abut them to the reference wall 37 of the aligning tray 31. COPYRIGHT: (C)2007,JPO&INPIT

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