| Patent Number |
Title Of Patent |
Date Issued |
| 6741939 |
Calculation method of discharge and transfer amount of chemical substances and server and system |
May 25, 2004 |
| Data indicating a material, a use step of the material and a use amount of the material which are transmitted from a client terminal through a network are inputted and stored; a chemical substance contained and a content thereof are searched by searching for a database of material co |
| 5969347 |
Synchronizing apparatus of a cascade scanning optical system having tilting measurement of refle |
October 19, 1999 |
| A cascade scanning optical system which includes: a first laser scanning optical system having a first polygon mirror, provided with a plurality of first reflecting surfaces, for deflecting a first scanning laser beam to scan a part of a scanning surface to generate a first scanning line |
| 5926680 |
Fixing unit |
July 20, 1999 |
| A fixing unit, used for fixing images on a recording sheet, includes a heat roller accommodating a heater, and a press roller movable between a retracted position and an operating position. The heat roller is rotated by a driving mechanism. A moving mechanism opens and closes a gap betwe |
| 5909300 |
Scanning apparatus having a cascade scanning optical system |
June 1, 1999 |
| Disclosed is a scanning apparatus having a cascade scanning optical system. The scanning apparatus includes: a first laser scanning optical system for deflecting a first scanning laser beam to scan a scanning surface to generate a first scanning line; a second laser scanning optical syst |
| 5903378 |
Scanning apparatus having a cascade scanning optical system |
May 11, 1999 |
| Disclosed is a scanning apparatus having a cascade scanning optical system. The scanning apparatus includes: a first laser scanning optical system for deflecting a first scanning laser beam to scan a scanning surface to generate a first scanning line during modulation of the first scanni |
| 5903377 |
Scanning apparatus having a cascade scanning optical system |
May 11, 1999 |
| Disclosed is a scanning apparatus having a cascade scanning optical system. The scanning apparatus includes: a first scanning optical system for deflecting a first scanning laser beam to scan a scanning surface; a second scanning optical system for deflecting a second scanning laser beam |
| 5867299 |
Cascade scanning optical system |
February 2, 1999 |
| A cascade scanning optical system which includes a plurality of laser scanning optical systems each emitting a laser beam to scan a surface of a member, and a beam splitter positioned in an optical path between the plurality of laser scanning optical systems and the member such that a |
| 5842100 |
Fixing unit |
November 24, 1998 |
| A fixing unit includes a heat roller accommodating a heater and a press roller movable toward and away from the heat roller. Both shaft members of the heat roller are supported by two receiving members, with a clearance provided between each shaft member and respective receiving member. |
| 5839046 |
Continuous form printer |
November 17, 1998 |
| A printer includes a tractor unit for feeding continuous form paper, encoders driven in synchronization with the tractor unit, and detecting sensors for detecting the encoders to generate feed pulses at a standard interval. The printer further includes a paper top sensor for detecting a |
| 5835835 |
Fixing unit having press roller opening/closing mechanisms |
November 10, 1998 |
| A fixing unit includes a heat roller accommodating a heater and a press roller movable between an operating position in which the recording sheet is nipped by the rollers and a retracted position. A driven gear is provided to one axial end of heat roller, which engages a rotating mec |
| 5828479 |
Cascade scanning optical system |
October 27, 1998 |
| A cascade scanning optical system which includes: a pair of laser scanning optical systems each having a laser beam emitter and a laser beam deflector, wherein a laser beam emitted by the laser beam emitter enters the laser beam deflector so that the laser beam deflector deflects the |
| 5825522 |
Cascade scanning optical system |
October 20, 1998 |
| A cascade scanning optical system which includes a first laser scanning optical system for emitting a first laser beam to scan a surface of a member to generate a first scanning line, and a second laser scanning optical system for emitting a second laser beam to scan the surface to g |
| 5671466 |
Electrophotographic apparatus and sheet guide mechanism |
September 23, 1997 |
| A sheet guide mechanism is provided with a guide path along which a sheet-like member is guided and which is defined between one and the other guide surfaces. A stationary guide member has a first surface defining the one guide surface, and a movable guide member having a second surface |
| 5541634 |
Color printer with shiftable laser unit |
July 30, 1996 |
| A color printer includes a single laser scanning unit which is controlled to emit a scanning laser in accordance with color image data on each of a plurality of separated colors to be printed. A plurality of photosensitive drums, whose number corresponds to the number of colors to be pri |
| 5528352 |
Electrophotographic apparatus having original separation means |
June 18, 1996 |
| An electrophotographic apparatus is provided with an original separation mechanism which is disposed on a lower side of the inlet port of a feeding path. The original separation mechanism is pressed to an original pick-up roller, and is provided for separating one original, which contact |
| 5452072 |
Transfer unit mounted on a pivotal upper cover |
September 19, 1995 |
| An electrophotographic apparatus is provided with a photoconductive drum including an outer peripheral surface on which a latent image corresponding to an image to be transferred is formed, and a developing device for developing the latent image by a toner. The electrophotographic ap |
| 5365320 |
Sheet warp prevention mechanism employed in a fixing unit of an electrophotographic printer |
November 15, 1994 |
| In a sheet warp prevention mechanism adapted to be positioned in an imaging device for forming a visible image, the imaging device includes a pair of rollers adapted to be brought into and out of contact with each other in accordance with a rocking operation of one of the pair of rollers |
| 5362163 |
Sheet holding mechanism |
November 8, 1994 |
| A sheet holding mechanism is provided for receiving and stacking sheets, such as recording papers, ejected from a main apparatus such as, for instance, a printer. The mechanism comprises an ejected sheet tray provided with the main apparatus that is swingable in a predetermined range |
| 5346197 |
Manual recording paper insertion mechanism |
September 13, 1994 |
| A paper feed mechanism is provided for individually supplying recording papers to an imaging apparatus. A plurality of papers are stacked on a tray member of a paper cassette. One end of the tray member is biased toward a feeding roller and presses the stacked papers toward the feeding |
| 5325157 |
Reset data creation mechanism for photoconductive drum counter |
June 28, 1994 |
| A detection mechanism for detecting an installation of a detachable member to a main body, includes a movable member provided on the detachable member and being movable between a first position and a second position. The movable member is set in the first position prior to a first in |
| 5321479 |
Electrophotographic apparatus |
June 14, 1994 |
| An electrophotographic apparatus is provided with a control device for controlling the heating temperature of the fixing unit in accordance with the detected result by use of a condition detection mechanism. The control device controls the fixing unit: (a) to set the heating temperature |
| 5305068 |
Continuous paper feed prevention lock mechanism for printer |
April 19, 1994 |
| A printer, for printing on continuous recording paper, includes tractors disposed in the recording paper feed path of the printer, with each of the tractors circumferentially travelling in synchronism with movement of the continuous recording paper when the tractors engage feed holes of |
| 5303010 |
Doctor blade mounting structure |
April 12, 1994 |
| A doctor blade mounting structure for mounting a doctor blade to a main body of a development device is provided, which includes a development roller which is rotatably arranged in the main body and on the outer circumferential surface of which a magnetic brush is formed. The doctor |
| 5291242 |
Gear arrangement for development unit of imaging device |
March 1, 1994 |
| A gear arrangement for a development unit of an imaging device employing an electrophotographic process. The development unit is provided with a rotation member and swingably supported by the main body of the imaging device through a support shaft to be mounted on a predetermined positio |
| 5289244 |
Wrinkle prevention structure for electrophotographic printer |
February 22, 1994 |
| A wrinkle prevention structure is employed in an electrophotographic imaging device using a continuous form recording sheet. The structure is provided with a guide member disposed on the upstream side of a pair of fixing rollers. The guide member has a guide surface extending substan |
| 5274477 |
Electrophotographic facsimile apparatus having a pivoted upper structure |
December 28, 1993 |
| An electrophotographic facsimile apparatus is provided with a main body, a recording mechanism substantially arranged in the main body, for printing received image information onto a recording paper fed through a recording paper path by using electrophotography, and an upper structure is |
| 5253013 |
Image recording apparatus having releasable fixing device |
October 12, 1993 |
| An image recording apparatus employing a fixing unit for fixing a toner image on a recording sheet by pressing and, or heating by means of a pair of fixing rollers disposed opposite to each other. At least one of the fixing rollers is arranged to be releasable manually or automatically w |
| 5249020 |
Developing device for electrophotographic image recording apparatus |
September 28, 1993 |
| In an electrophotographic image developing device, a toner chamber, for accommodating toner to be used to develop an image, is arranged to be selectively coupled to one of a toner cartridge and an additional toner holding member. The additional toner holding member functions as an ex |
| 5241344 |
Structure for mounting screen grid of corona charger in imaging device |
August 31, 1993 |
| A structure for mounting a screen grid member of a corona charger in an imaging device with a predetermined positional relation to the surface of a photoconductive member. The corona charger and the photoconductive member are mounted on a support base member. The support base member is |
| 5168317 |
Image recording apparatus including record medium edge holder |
December 1, 1992 |
| An image recording apparatus wherein a recording medium is feed in a predetermined feed path. The apparatus is provided with a pair of edge holders arranged opposedly about the feed path for holding edge portions of the recording medium. One of the edge holders is provided an edge ho |
| 5148228 |
Image recording apparatus |
September 15, 1992 |
| An image recording apparatus wherein a recording medium is fed in a predetermined feed path. The apparatus is provided with a pair of edge holders opposedly arranged about the feed path for holding edge portions of the recording medium. One of the edge holders is provided with an edge |
| 5043569 |
Optical system of laser beam reader |
August 27, 1991 |
| An optical system of a laser reader has a light projecting portion for emitting a laser beam of light converging toward an object, a condenser lens for condensing a reflecting light from the object and a light receiving element for detecting light quantity of the reflecting light con |
| 5028156 |
Sheet holding mechanism |
July 2, 1991 |
| A sheet holding mechanism for receiving and stacking sheets such as recording papers ejected from a main apparatus such as, for instance, a printer. The mechanism comprises an ejected sheet tray provided to the main apparatus that is swingable in a predetermined range. The tray is lo |
| 5023667 |
Apparatus for preventing damage to both an electrophotographic printer and a recording form used |
June 11, 1991 |
| A printer for electrophotographically forming an image on a continuous-form recording paper. The printer has a transfer unit and a pair of heat fixing rollers which are brought into a withdrawn state, in a print stand-by state. Thus, the recording paper is out of contact with a photocond |
| 5016029 |
Printer |
May 14, 1991 |
| 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 |
