Abstract: Provided is a sticky cleaner comprising a catcher to catch matter to be removed. The catcher has an adhesive surface formed of PSA, and the sticky cleaner satisfies the following properties: (A1) an oily dirt adhesion test to determine an adhered amount of an oily dirt sample shows an adhered amount A1 of the oily dirt sample per m2 of the adhesive surface of 200 g/m2 or greater; and (B1) a moist/wet dirt adhesion test to determine an adhered amount of a moist/wet dirt sample shows an adhered amount B1 of the moist/wet dirt sample per m2 of the adhesive surface of 190 g/m2 or greater. At least either the adhered amount A1 of the oily dirt sample or the adhered amount B1 of the moist/wet dirt sample is 350 g/m2 or greater.

Abstract: A damping component includes a base with an attachment portion to be attached to a vibrated member, a damping member disposed at an outer circumferential side of the base while being compressed, and a holding portion disposed at an outer circumferential side of the damping member and compressively holding the damping member. The damping member has rigidity lower than rigidity of the base and rigidity of the holding portion and has a loss factor, measured by a mechanical impedance method in a state being compressed between the base and the holding portion, of 0.05 or more.

Abstract: A damping structure includes a first frame on which a driving portion is mounted, a second frame provided at a position facing the first frame in a state being connected with the first frame, a projecting portion provided projectively from one frame toward the other frame of the first and second frames, and a damping member compressively held between the projecting portion and the other frame. The damping member has rigidity lower than rigidities of the first and second frames and of the projecting portion and has a loss factor, measured by a mechanical impedance method in the state being compressed between the projecting portion and the other frame, of 0.05 or more.

Abstract: An image forming apparatus includes a main body, a cover, a driving unit, and a film. The main body is configured to accommodate an image forming portion which forms an image on a recording material. The cover is provided on the main body and covers the image forming portion. The driving unit is provided on the main body and drives the image forming portion. The film is attached to the cover with a gap formed against an inner wall of the cover. The film faces the inner wall of the cover while a tension is given thereto and without coming into contact with the driving unit.

Abstract: Provided is a sticky cleaner comprising a catcher to catch matter to be removed. The catcher has an adhesive surface formed of PSA, and the sticky cleaner satisfies the following properties: (A1) an oily dirt adhesion test to determine an adhered amount of an oily dirt sample shows an adhered amount A1 of the oily dirt sample per m2 of the adhesive surface of 200 g/m2 or greater; and (B1) a moist/wet dirt adhesion test to determine an adhered amount of a moist/wet dirt sample shows an adhered amount B1 of the moist/wet dirt sample per m2 of the adhesive surface of 190 g/m2 or greater. At least either the adhered amount A1 of the oily dirt sample or the adhered amount B1 of the moist/wet dirt sample is 350 g/m2 or greater.

Abstract: A dumping structure includes a first frame on which a driving portion is mounted, a second frame, a fixture fixing the first frame to the second frame, a restrict portion, provided around the fixture and provided between the first and second frames, which restricts a distance between the first and second frames, and a damping member, provided around the restrict portion, which is compressed by the first and second frame. The damping member has rigidity lower than rigidity of the first frame, rigidity of the second frame and rigidity of the restrict portion, and has a loss factor, measured by a mechanical impedance method in the state being compressed between the first and second frames, of 0.05 or more.

Abstract: An image forming apparatus includes: a main body configured to accommodate an image forming portion which forms an image on a recording material; a cover which is provided on the main body and covers the image forming portion; a driving unit which is provided on the main body and drives the image forming portion; and a film attached to the cover with a gap formed against an inner wall of the cover, the film facing the inner wall of the cover while a tension is given thereto and without coming into contact with the driving unit.

Abstract: Included is a fixation portion having one end joined with a flat plate, and the other end fixed to a support plate that supports at least a part of a drive transmission portion including a drive transmission member that transits driving force caused in a drive source, and a length in a longitudinal direction and a length in a short direction are set such that a first vibration frequency vibrating in the longitudinal direction of the flat plate and a second vibration frequency vibrating in the short direction of the flat plate respectively resonate with mutually different vibration frequencies caused in the support plate around a portion where the fixation portion and the flat plate are joined.

Abstract: Provided are a sheet feeding device and an image forming apparatus which can separately feed a sheet with safety without causing the length of an adsorption member to be increased. One end of a flexible adsorption member (29) is fixed to a holding member (24) which is disposed on the upper side of a storing unit to store the sheet and rotated in a sheet feeding direction. Then, when the holding member (24) is rotated, the rigidity of a second region (29b) of the adsorption member (29) is set to be lower than that of a first region (29a) of the adsorption member (29) which comes into surface contact with the sheet stored in the storing unit and adsorbs the sheet by an adsorbing force by static electricity.

Abstract: Provided are a sheet feeding device and an image forming apparatus which can feed a sheet by an electrostatic adsorption with a simple configuration and with low noises. One end of a flexible adsorption member (29) is fixed to a holding member (24) rotating in a sheet feeding direction, and comes into surface contact with a sheet (P) stored in a sheet feeding cassette (20) while being elastically deformed when the holding member (24) is rotated, and adsorbs the sheet (P) by an adsorbing force by static electricity. Then, the sheet (P1) adsorbed to the adsorption member (29) is delivered to a registration roller (15) while winding up the adsorption member (29), and then the holding member (24) is stopped at a position where the adsorption member (29) is separated from the sheet.

Abstract: A damping structure includes a first frame on which a driving portion is mounted, a second frame provided at a position facing the first frame in a state being connected with the first frame, a project portion provided projectively from one frame toward the other frame among the first and second frames, and a damping member compressively held between the project portion and the other frame. The damping member has rigidity lower than rigidities of the first and second frames and of the project portion and has a loss factor, measured by a mechanical impedance method in the state being compressed between the project portion and the other frame, of 0.05 or more.

Abstract: A dumping structure includes a first frame on which a driving portion is mounted, a second frame, a fixture fixing the first frame to the second frame, a restrict portion, provided around the fixture and provided between the first and second frames, which restricts a distance between the first and second frames, and a damping member, provided around the restrict portion, which is compressed by the first and second frame. The damping member has rigidity lower than rigidity of the first frame, rigidity of the second frame and rigidity of the restrict portion, and has a loss factor, measured by a mechanical impedance method in the state being compressed between the first and second frames, of 0.05 or more.

Abstract: A damping component includes a base with an attachment portion to be attached to a vibrated member, a damping member disposed at an outer circumferential side of the base while being compressed, and a holding portion disposed at an outer circumferential side of the damping member and compressively holding the damping member. The damping member has rigidity lower than rigidity of the base and rigidity of the holding portion and has a loss factor, measured by a mechanical impedance method in a state being compressed between the base and the holding portion, of 0.05 or more.

Abstract: Provided are a sheet feeding device capable of preventing the occurrence of failure in sheet feeding and degradation in quality of printed matter with downsizing achieved and an image forming apparatus provided with the sheet feeding device. The sheet feeding device includes a sheet storing portion 55 in which sheets are stored, a feeding roller 51 placed above the sheet storing portion, a flexible member 53 placed along part of the peripheral surface of the feeding roller with one end of the flexible member fixed to the sheet storing portion at a position below the stored sheets, and a pulling-up portion 300 that is connected to the other end of the flexible member above the sheet storing portion and that pulls up the flexible member to press the sheet on the feeding roller.

Abstract: The present invention is directed to a sheet feeding apparatus including a sheet feeding unit capable of feeding sheets stacked on a sheet stacking face of a sheet stack tray, wherein the sheet feeding unit includes a feeding roller configured to feed the sheets, a driving motor configured to rotate the feeding roller, a lifting member configured to move at least edges of the sheets in a direction of the feeding roller, a sheet-shaped member connected to a front end of the lifting member at the downstream side, and a counter member disposed opposite to the feeding roller to pinch the sheet-shaped member, wherein, when the feeding roller is rotated, the sheet-shaped member is moved to the downstream side to cause the lifting member to move, and when the sheets are brought into contact with the feeding roller, the contacted uppermost sheet is fed by the feeding roller.

Abstract: Provided are a sheet feeding device capable of preventing the occurrence of failure in sheet feeding and degradation in quality of printed matter with downsizing achieved and an image forming apparatus provided with the sheet feeding device. The sheet feeding device includes a sheet storing portion 55 in which sheets are stored, a feeding roller 51 placed above the sheet storing portion, a flexible member 53 placed along part of the peripheral surface of the feeding roller with one end of the flexible member fixed to the sheet storing portion at a position below the stored sheets, and a pulling-up portion 300 that is connected to the other end of the flexible member above the sheet storing portion and that pulls up the flexible member to press the sheet on the feeding roller.

Abstract: Provided is a multilayer reflector about which a complicated step is not required when the molecular alignment of a retardation film is partially relaxed to form a latent image of authentication information, and about which the latent image is not made visible by the generation of unevenness in the surface. A multilayer reflector 1 has a retardation film 10 in which the phase difference ?nd1 to an observation wavelength ? is set to be m×?/4??/16??nd1?m×?/4+?/16 wherein m is a positive odd number, and a metallic reflector 11 laminated on the rear face side of this retardation film 10, wherein an authentication region 10a where predetermined authentication information is beforehand formed in the retardation film 10 is formed to give a phase difference ?nd2 set to be n×?/4??/8 ??nd2?n×?/4+?/8 wherein n is 0 or a positive even number provided that n<m, and further a light diffusing layer 12 is formed on the front face side of the retardation film 10.

Abstract: Provided is a multilayer reflector about which a complicated step is not required when the molecular alignment of a retardation film is partially relaxed to form a latent image of authentication information, and about which the latent image is not made visible by the generation of unevenness in the surface. A multilayer reflector 1 has a retardation film 10 in which the phase difference ?nd1 to an observation wavelength ? is set to be m×?/4???/16??nd1?m×?/4+?/16 wherein m is a positive odd number, and a metallic reflector 11 laminated on the rear face side of this retardation film 10, wherein an authentication region 10a where predetermined authentication information is beforehand formed in the retardation film 10 is formed to give a phase difference ?nd2 set to be n×?/4??/8??nd2?n×?/4+?/8 wherein n is 0 or a positive even number provided that n<m, and further a light diffusing layer 12 is formed on the front face side of the retardation film 10.

Abstract: A pressure-sensitive tape, a pressure-sensitive tape-fixing structure comprising a member made of a material having a rough surface, having fixed thereto the pressure-sensitive tape, and a roll of the pressure-sensitive tape are disclosed, the pressure-sensitive tape comprising a pressure-sensitive tape comprising a tape substrate, a first pressure-sensitive adhesive area provided on one side of the tape substrate in a tape substrate part which is close to one end of the tape substrate, and a second pressure-sensitive adhesive area provided on one side of the tape substrate in a tape substrate part which is close to the other end of the tape substrate, wherein either or both of said first pressure-sensitive adhesive area and said second pressure-sensitive adhesive area have a strongly adhesive area at an end part thereof to which an external peeling force is to be applied first, and said strongly adhesive area has a peel strength higher than that of the other part of the pressure-sensitive adhesive area.

Abstract: Devolatilization of sticky polyolefin powder and deactivation of catalyst residue can be carried out efficiently and sufficiently without the need for accompanying facilities commonly used in the treatment of powdery products in an apparatus comprising (a) a horizontal cylindrical body, (b) a stirrer provided with one revolving shaft and a plurality of specified stirring blades (c) an inlet pipe for introducing untreated polyolefin power and heating gas, (d) a variable barrage for controlling the holding amount of polyolefin powder insides of said horizontal cylindrical body, (e) an outlet way for discharging after-treated polyolefin powder and gas, (f) inlet pipes for heating gas having a pipe for feeding an after-treating agent, and (g) indirect heating mean.