专利检索_ .涉及到复印材料处理的设备专利检索_ .涉及到复印材料处理的设备专利检索查询

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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
161	Curl detection through pneumatic acquisition sensing	US178167	1994-01-06	US5454556A	1995-10-03	Robert P. Siegel
A machine includes a scheme for detecting the level of curl in sheets in a stack by measuring the time it takes to acquire a sheet with a bottom corrugation vacuum feeder (BVCF). A vacuum switch changes state at a preset vacuum level thereby detecting any significant rise in vacuum which occurs when a sheet has been acquired by the BCVF. A digital control circuit senses the change of state which takes place in the vacuum switch and feeds a signal to the machine's microprocessor which in turn signals an air knife in the BVCF to increase or decrease air pressure toward the sheet stack to compensate for the stressed state of the sheets.
162	Paper feed roller	US269277	1994-06-30	US5429872A	1995-07-04	Tsutomu Nakamura; Masaharu Takahashi
A paper feed roller formed from a high friction rubber obtained by curing a high friction rubber-forming composition comprising in admixture,(A) a silicone rubber compound containing an organopolysiloxane of the average compositional formula (1):R.sub.n.sup.1 SiO.sub.(4-n)/2 (1)wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group, the groups represented by R.sup.1 containing up to 95 mol. % of a methyl group, at least 3 mol. % of a phenyl group and at least 0.2 mol. % of a vinyl group, and n is a positive number of from 1.95 to 2.05, and(B) a silicone rubber compound containing an organopolysiloxane of the average compositional formula (2):R.sub.m.sup.2 SiO.sub.(4-m)/2 (2)wherein R.sup.2 is a substituted or unsubstituted monovalent hydrocarbon group, the groups represented by R.sup.2 containing at least 98 mol. % of a methyl group, and m is a positive number of from 1.95 to 2.05,said silicone rubber compounds (A) and (B) being mixed in a weight ratio between 5:95 and 95:5.
163	Control of the neutralization of surface charges on objects	US89145	1993-07-08	US5420743A	1995-05-30	Helmut Domes
Control of the neutralization of surface charges existing on objects such as paper, fabrics, plastic sheets or the like. In order that the surface of an object (1) can be neutralized independently of the output parameters, the electrostatic charge present on the object (1) is determined by means of a charge sensor (2) arranged upstream of the brush. The charge already neutralized via the brush (5) is also continuously measured. The two values are fed to a microprocessor (11) causing an actuator (7) to control the brush-to-object distance. The controlled movement of the brush (5) effects complete neutralization.
164	Image forming apparatus having two image forming units	US928113	1992-08-11	US5357329A	1994-10-18	Takayuki Ariyama; Kiyoshi Emori; Koji Shakushi; Hiroya Sugawa; Masamichi Kishi
An image forming apparatus which includes an electrophotographic copying machine operable to form an image on a recording paper and a laser printer operable to form an image on a recording paper independently of the copying machine. The copying machine includes a paper feeder from which the recording papers are selectively supplied to an electrophotographic image forming station in the copying machine and to a paper supply unit in the laser printer. The image forming apparatus also includes a paper recirculating unit operable at a specific timing to replenish the recording paper, supplied from the paper feeder, onto the paper supply unit in the laser printer.
165	Copying machine with registration adjusting device	US111213	1993-08-24	US5355206A	1994-10-11	Kazuhisa Maruyama; Masaru Ushio; Junji Sato
A copying machine in which an image of a document placed on a platen is optically read and transferred on a transfer sheet sent out from a sheet feeding cassette. The temporary stop times of transfer sheets at the registration unit are averaged after transfer sheets in each sheet feeding cassette have been copied. The obtained average is compared with a predetermined reference value. The start of the sheet feeding operation by sheet feeding cassette is advanced in accordance with the result of the comparison.
166	Conveyor roller cleaning device	US5332	1993-01-19	US5351108A	1994-09-27	Naoki Mizutani
A conveyor roller cleaning device is mounted on the body of an image forming apparatus for cleaning the peripheral surface of a conveyor roller rotatably mounted on the body of the apparatus. The device includes an elastic member adapted to be pressed into contact with the roller, an attaching member provided at the tip end thereof with the elastic member, a drive source for driving the roller and drive control device for controlling the drive source. The attaching member is rotatable around the base end thereof between a setting position in which the elastic member is pressed into contact with the roller and a retreat position in which the elastic member is retracted away from the roller. The attaching member is maintained at the setting position by a reaction force corresponding to the pressing-contact force of the elastic member to the roller. The drive control device is adapted such that, before paper to be conveyed reaches the roller, the roller is rotated in a predetermined direction for a predetermined period of time to produce, between the peripheral surface of the roller and the elastic member, a frictional force by which the attaching member is biased toward the setting position.
167	Image forming apparatus	US795011	1991-11-20	US5343223A	1994-08-30	Yoshio Tohyama; Takayuki Ogawa; Tatsuya Eguchi; Norio Tamada; Satoshi Yoshida; Hirofumi Hasegawa; Hitoshi Sekino; Katsuyuki Taima; Akihito Ikegawa; Kazuyoshi Hara; Yasuhiro Matsuura; Hiroshi Mizuno
An image forming apparatus having a sheet storing unit for storing sheets therein along a bottom of a body of the apparatus, a sheet feeding mechanism for feeding the sheets stored in the sheet storing unit one by one toward a rear side of the body, a sheet path for leading each sheet fed by the sheet feeding mechanism upward, an image forming unit for forming an image on the sheet traveling in the sheet path, and a sheet ejecting unit for ejecting the image-formed sheet toward a front side of the body onto a sheet receiving portion disposed on an upper side of the body. The image forming unit is made as a cartridge containing a photosensitive member, a developing device, a transferring device and a cleaner. The cartridge is mounted in a holder which is movable between a cartridge exchange position and a set position.
168	Paper feeding method and printing apparatus which continuously feeds out sheets of paper by selecting one of a plurality of paper feed cassettes	US9247	1993-01-26	US5323220A	1994-06-21	Megumi Yasuda
A printing apparatus used in a computer system selects either one of a plurality of paper feed cassettes and prints image data onto a cut sheet supplied from the selected cassette. Paper sensors are individually attached at predetermined positions which are located just after a plurality of paper feed cassettes at the same distance. The paper conveying times from the attaching positions of the paper sensors to a print start request position have been preset. When the cassette is switched during the printing operation, the predetermined paper feed timing time is changed. When switching from the cassette at a near position to the cassette at a remote position, the paper feed timing time is set to a short time and the paper feeding operation from the cassette on the switching side is instructed. When switching from the cassette at a remote position to the cassette at a near position, the predetermined paper feed timing time is set to a long time and the paper feeding operation from the cassette on the switching side is instructed.
169	Arrangement for the mechanical coupling of physical units of an electrophotographic printer or copier	US859488	1992-06-15	US5283612A	1994-02-01	Gerhard Lodermann; Josef Windele
An arrangement for the mechanical coupling of physical units, such as, for example, of a printing assembly (15) of an electrophotographic printer or copier, to further physical units (23, 24) in axially parallel orientation with respect to the transport path of a recording carrier (12) includes a basic unit (28) containing especially the printing assembly (15) coupled in an articulated manner to a carrier (32), oriented vertically with respect to a machine frame (1), via a crossmember (30) which consists especially of two individual crossmember elements (301, 302). The physical units (23 or 24) to be arranged axially parallel with respect to the basic unit are then themselves articulated on the carrier (32) in paired receptacles (for example C1, C2).
170	Selective control of distributed drives to maintain interdocument gap during jam recovery purge	US941621	1992-09-08	US5257070A	1993-10-26	Donald L. Miller; Ronald P. Booth, Sr.; Gary W. Roscoe; Prashant K. Phadnis
A method of purging copy sheets after a machine malfunction from a copy sheet path having a plurality of zones including the steps of determining the existence of copy sheets in process in any of the copy sheet path zones, selectively activating a plurality of independent copy sheet drives to maintain a predetermined interdocument space between any copy sheets in process and systematically purging the copy sheets from the zones of the paper path in a predetermined order based upon the particular disposition of the copy sheets in the sheet path zones.
171	Surface hardening of reprographic machine components by coating or treatment processes	US504224	1990-04-04	USH1210H	1993-07-06	Frank Jansen
A process for maximizing wear resistance of electrophotographic components which comprises coating the components with a diamond-like amorphous carbon material, a titanium compound, or mixtures thereof.
172	Precision transport roller	US459457	1990-01-02	US5184383A	1993-02-09	Johannes C. Delhaes
A roller, and more particularly a precision transport roller formed of elastomeric material is disclosed. The roller is characterized in that the elastomeric material is formed into inner and outer concentric cylinders which are joined together and which encompass therebetween in co-axial relation a rigid cylindrical bushing. Preferably, the inner and outer cylinders are connected by bridges defined by holes formed in the bushing. The bushing may include beveled end faces for facilitating centering of the bushing in a mold.
173	Copier operable in two-sided and combination copy modes	US712560	1991-06-10	US5166738A	1992-11-24	Tatsuo Tani
A copier operable in a two-sided copy mode and a combination copy mode. The copier effects both of the two different copy modes without resorting to a plurality of intermediate trays and by allowing a minimum of local contamination due to a toner to occur on copy sheets.
174	Silicone rubber-covered copier roll	US591907	1990-10-01	USRE34027E	1992-08-11	Akito Nakamura; Junpei Sugihara
The silicone rubber obtained by curing in the presence of a platinum-containing catalyst a composition comprising an organopolysiloxane containing a plurality of lower alkenyl radicals and a organohydrogensiloxane consisting essentially of R.sub.3 SiO.sub.1/2 units, R.sub.2 SiO units, RHSiO units, and RSiO.sub.3/2 units in a specified molar ratio is uniquely suitable as the coating material for the press roll in the fixing assembly of an electrophotographic copier.
175	Image forming system	US427043	1989-10-25	US5126786A	1992-06-30	Hidetake Tanaka
An image forming system includes an image forming mechanism, optional units including at least one recording medium feed unit, and at least one recording medium eject unit. The image forming mechanism includes a transport mechanism for taking the recording medium from one of the optional units and for ejecting the recording medium to one of the optional units in accordance with first control data and second control data defining transport characteristics of the transport mechanism, and a sending part for sending the optional units the first control data through a serial signal line. Each of the optional units includes a memory for storing a plurality of different control data defining different transport characteristics of each optical unit, a receiving part for receiving the first control data sent from the sending part, a selecting part for selecting one of the different control data so as to conform to the first control data sent from the sending part, and a sending part for sending the transport mechanism the selected one of control data. The selected one of control data serves as the second data used in the transport mechanism of the image forming mechanism.
176	Sheet supplying device	US523800	1990-05-15	US5083767A	1992-01-28	Ken-ichi Iwamoto; Yuuji Sugimoto; Kenji Okada; Tadasu Taniguchi; Yoshikado Yamada; Toyoaki Namba
A sheet supplying device has at least one sheet stacking portion for stacking a plurality of sheets to be fed, a unit for drawing the sheets out of the sheet stacking portion to feed the drawn sheet to a predetermined path, and a unit for returning a sheet into the sheet stacking portion. This sheet is drawn by the drawing unit but stayed in a position that the leading edge thereof is out of the sheet stacking portion.
177	Printer	US421060	1989-10-13	US5016029A	1991-05-14	Seiichi Mori; Masatoshi Takano; Kazuhiro Ichinokawa
In a printer such as a laser beam printer utilized to print an image on a recording medium, an image transferring mechanism such as a photoconductive drum is disposed under the feed path of the recording medium so as to transfer an image such as a toner image onto the undersurface of the recording medium. The recording medium, on which the image is thus transferred is discharged and stacked with the image carrying side down in the proper order.
178	Sheet feed apparatus for image forming system	US288143	1988-12-22	US5002266A	1991-03-26	Yutaka Kikuchi; Seiji Sagara
Image forming apparatus including sheet feeding apparatus, sheet conveying apparatus, sheet delivering apparatus, structure for supporting the sheet conveying apparatus and sheet delivering apparatus and having an opening side, sheet storing apparatus, and structure for guiding the sheet storing apparatus such that the sheet forming apparatus is detachable from the sheet feeding apparatus at the same opening side.
179	Printer having a reversible motor and separate transmissions systems	US467357	1990-01-23	US4967239A	1990-10-30	Sigeki Sakakura
An electrostatic printer includes a photoconductive drum (2), a developer (5) for forming a toner image on a surface of the drum (2), a pickup roller (11) for removing a medium (10) in a cut sheet form from a hopper (8), a registration roller (12) for introducing the cut sheets (10) removed by the pickup roller (11) into a printing zone, a fuser (14) for fixing the toner image on the cut sheets (10), and an eject roller (16) for discharging the medium (10) from the printing zone. A single motor (19) is selectively rotatable in the normal direction and the reverse direction according to commands output by a control unit (300) is provided for driving the aforesaid rotating elements (2, 5, 11, 12, 14, 16). A torque derived from the motor being transmitted, on one hand, to the pickup roller (11) through a first transmission system (100) incorporating a one-way clutch (20a) which transmits only one directional rotation of the motor, and on the other hand, to the rotating elements (12, 14, 16) other than pickup roller (11) through a second transmission system (200) incorporating another one-way clutch (20b) which transmits only the opposite directional rotation of the motor (19).
180	Paper feeding stand	US283535	1988-12-12	US4958823A	1990-09-25	Hiroshi Iwaki; Yoshiharu Mita; Jiro Miyazaki; Akihiko Suto; Satoshi Hirose; Tadashi Renbutsu
A paper feeding stand on which a recording apparatus such as a copying machine is mounted and which contains paper for recording and feeds the paper to the recording apparatus through intermediate rollers provided at the position opposing the paper entry of the recording apparatus according to the rotation of the intermediate rollers. When paper jam occurs between the intermediate rollers and the recording apparatus, the intermediate rollers are rotated in the reversal direction to return the paper to the intermediate roller section, and then the intermediate rollers are moved in the direction intersecting at right angles with the axial direction thereof to expose the intermediate rollers and the jammed paper to the outside so that the paper can be removed easily and surely without tearing.

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