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| Number | Title | Issue Date |
| 7245855 | Opening and closing device, sheet conveying apparatus, and image forming apparatus An opening and closing device including: a fixed side member; a movable side member retained by the fixed side member to be opened and closed freely; a wire member that is fixed at one end thereof to one of the fixed side member and the movable side member; a rotary... | 07/17/2007 |
| 7215447 | Method of optimal focusing for document scanner A method of optimal focusing for a document scanner is disclosed. The scanner includes an optical module movable in a given scanning direction to perform scanning operation over an area of a document in a scan line by scan line manner by being driven by an optical m... | 05/08/2007 |
| 7079295 | Vibration damping mechanism of image processing device When the speed of carriages that are moved in an image processing device is increased in order to accelerate the processing speed, the acquired image data is degraded due to vibrations being transmitted to the carriages from a motor which drives the carriages. The p... | 07/18/2006 |
| 7006265 | Transmission device for name card scanner A transmission device for driving a name card to pass over a contact image sensor (CIS) comprises: a loading deck provided with a central recess and a correction slip attached to a bottom face at the front end thereof; a first gear set for driving the loading deck; ... | 02/28/2006 |
| 6963430 | Image reading apparatus An image reading apparatus which enables a reduction of FCOT by omitting a home position search and a shading compensation after an input of a reading instruction for a succeeding original when reading different originals successively. ... | 11/08/2005 |
| 6453140 | Vibration inhibiting mechanism for scanner A vibration inhibiting mechanism for a scanner including a base installed in a chassis of the scanner for resiliently biasing a roller support formed with a roller assembling portion on the top thereof; a roller being mounted on the roller assembling port... | 09/17/2002 |
| 6081682 | Original scanning device with backward scanning control feature and related method An original scanning device can set a brake operation starting timing in a scanner backward movement to a predetermined timing, even if a scanning distance of the device is determined at any distance. To do so, a copy machine starts braking the scanning d... | 06/27/2000 |
| 6009292 | Image reader A drive control mechanism for an image reader having a controller, to control a drive current impressed to a connected stepping motor such that the impression of the drive current is carried out in a prescribed number of steps, and a changer, to change a ... | 12/28/1999 |
| 5440370 | Photographic copier having different magnifications A photographic copier has a copying station with a platen for a master to be reproduced and a platen for copy material. A straight guide extends across the copying station below the platen for the master and above the platen for the copy material, and a c... | 08/08/1995 |
| 5239340 | Linear motor device having vibration reduction unit An improved linear motor device is disclosed having a vibration reduction unit. The linear motor device can be applied to a copying machine. As a magnetic field forming device receives reaction force and is moved, in the opposite direction to the movement... | 08/24/1993 |
| 5229670 | Linear motor device having vibration reduction unit An improved linear motor device is disclosed having a vibration reduction unit. The linear motor device can be applied to a copying machine. As a magnetic field forming device receives reaction force and is moved, in the opposite direction to the movement... | 07/20/1993 |
| 5162851 | Braking system for image formation apparatus A braking system for image forming apparatus returns an optical scan system in the image forming apparatus to a preselected home position after each scan of a document placed on a platen, within a predetermined period of time. Various factors including te... | 11/10/1992 |
| 5113229 | Multi-color copying machine having a simultaneous color copy mode and an edited area copy mode A copying machine including a specifying unit movable along the document support for specifying a particular point and operable to divide an area of the document support into a first area, delimited between the exposure start position to the particular po... | 05/12/1992 |
| 4857956 | Copier with reciprocating document table A compact image reading apparatus such as a copier has a document table which can move reciprocatingly with respect to the top surface of its housing. A spiral spring is attached to the document table and as the user manually moves the document table from... | 08/15/1989 |
| 4645328 | Apparatus for scanning an original An apparatus for scanning an original includes a light source which is supported by a carriage movable in a scanning direction. A shield member is formed on the carriage. A first photointerrupter is provided at a home position of the carriage and a second... | 02/24/1987 |
| 4589761 | Reciprocating optics copier with means for counteracting acceleration reaction forces Reciprocating optics copier in which a mass approximately equal to the mass of a scanning subassembly mounted for movement along a generally horizontal path, is coupled to the subassembly and is driven in a direction opposite to that of the scanning subas... | 05/20/1986 |
| 4568171 | System for controlling the reciprocation of a scanning arrangement A system for controlling the reciprocation of a scanning apparatus includes scanning device for scanning an original from a home position across the original to a scanned position and returning it from the scanned position back to the home position, a D.C... | 02/04/1986 |
| 4561771 | System for controlling the reciprocation of a scanning apparatus A system for controlling the reciprocation of a scanning apparatus which includes a scanning device for scanning an original from a home position across the original to a scanned position and returning it from the scanned position back to the home positio... | 12/31/1985 |
| 4561764 | Control system for scanning arrangement A control system for a scanning arrangement adapted to be driven for reciprocating movements by a motor, which includes a power source circuit, a circuit for outputting a signal upon turning off of the power source, provided in the power source circuit, a... | 12/31/1985 |
| 4557585 | Return speed control system for use in a document scanning apparatus A return speed control system for use in a document scanning apparatus with a moving means moving relative to the document for optical scanning, comprising first and second detecting means and a control means. When the moving means is moving a backward, t... | 12/10/1985 |
| 4494866 | Apparatus for scanning an original for copiers having a variable reducing/enlargement ratio A first carriage carries a lamp for illuminating the original and a first mirror. A second carriage carries two mirrors and moves at half the speed of the carriage so that a constant optical path length is maintained from the original, via the three mirro... | 01/22/1985 |
| 4460268 | Automatic compensation for carriage flyback A control to automatically adjust the air bleed screw on a pneumatic dashpot to alter the return speed of a scanning carriage. At the start of the carriage flyback, an end of scan position signal is generated and a second signal is generated when the carr... | 07/17/1984 |
| 4429986 | Control method of electrophotographic copying machine In an electrophotographic copying machine of the type using a slit exposure optical system with reciprocating carriages, movement of these carriages at the time a transfer medium is being processed in the usual fixing device often causes a jittering of th... | 02/07/1984 |
| 4413900 | Copying apparatus with scanning position control In an optical scanning system for a copying apparatus, it is known to reciprocate the equipment so that an image to be scanned is applied, for example, to a photosensitive drum, developed, and eventually applied to a recording medium. It is essential for ... | 11/08/1983 |
| 4372671 | Shock absorbing carriage drive coupling for copier/duplicators A bidirectional mechanical power coupler between power input and output means provides a firm connection in one direction and a resilient coupling in the opposite direction, particularly operable immediately after a rapid reversal of the mechanical drive ... | 02/08/1983 |
| 4371254 | Programmed brake for controlling the speed of a scanning carriage The present invention is a programmed brake for controlling the deceleration of a scanning carriage. An encoder including an electro-optic sensor mounted on a moving carriage together with a stationary grating having a plurality of unevenly spaced apertur... | 02/01/1983 |
| 4332460 | Optical scanning carriage An optical scanning carriage which scans a document and is rapidly returned to the start of scan position is provided with a continuously working positive deceleration device. The device provides a triple mode of operation wherein in the first mode of ope... | 06/01/1982 |
| 4256399 | Electrophotographic copying apparatus equipped with improved braking device for scanning system A slit exposure scanning type electrophotographic copying apparatus equipped with a braking device for the scanning system. The braking device includes a brake shaft rotatably disposed in a driving mechanism of the scanning system, and a spring member whi... | 03/17/1981 |
| 4243311 | Image forming apparatus A scanning apparatus includes a scanner, a driver for reciprocating the scanner, and a control mechanism which controls the drive force of said driver so as to drive the scanner with a low acceleration at the initial stage of drive of the scanner.... | 01/06/1981 |
| 4218127 | Scanning carriage drive system An optical scanning system for a compact copier wherein a scanning carriage is reciprocated beneath a platen containing an original document to be copied. The drive system for the carriage includes a cable which moves the carriage through its scan cycle w... | 08/19/1980 |
| 4171901 | Device for controlling advance and return movements of original table of electrostatic copying apparatus A device for controlling advance and return movements of an original table of an electrostatic copying apparatus wherein the table is advanced in timed relationship with the movement of a photosensitive element and returned under the action of a spring to... | 10/23/1979 |
| 4158499 | Buffer device for the scanning mechanism of an electrostatic copier A buffer device for use in an image forming apparatus wherein a reciprocable member is placed for reciprocating motion through a belt by a rotary member driven by a drive source, the buffer device has at least two displaceable shock-absorbing rotary eleme... | 06/19/1979 |
| 4148578 | Reciprocating carriage drive system An electrophotocopy machine has two friction clutches for driving a reciprocating carriage from a home position, across an illuminating station and back to a home position. One clutch is continuously engaged to drive the carriage toward its home position ... | 04/10/1979 |
| 4135806 | Power transmission control mechanism for use in the copying apparatus A copying apparatus having a power transmission means in which arranged between the plurality of driven means and the driving system is a power transmission control mechanism. Said power transmission control system is capable of reducing and absorbing the... | 01/23/1979 |
| 4101218 | Electronic copying apparatus An electronic copying apparatus comprises a movable optical unit with a mirror lens defining a first light path between an original and the mirror lens and a second light path between the mirror lens and a photosensitive body, which include a ratio of opt... | 07/18/1978 |
| 3990792 | Reciprocating movement control device In a copying apparatus having an original carriage and an optical system, a reciprocating movement control device comprises a drive source for driving a photosensitive medium and drive transmission means effective only during forward movement to transmit ... | 11/09/1976 |
