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Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 7227978 | Image input device An image input device 1 includes a rotating roller 4 supported so as to be freely rotatable around a rotational axis thereof, wherein the roller 4 includes a line image sensor 3 and a Selfoc lens array 6 which are mounted not to ro... | 06/05/2007 |
| 7150456 | Sheet transport drum for a machine processing printing-material sheets A machine processing printing-material sheets contains a first sheet transport drum and a second sheet transport drum disposed immediately after the first sheet transport drum in a sheet transport direction. The first sheet transport drum has gripper systems which d... | 12/19/2006 |
| 6999710 | Fixing device with intermediate toner image transfer medium A fixing device for an image forming apparatus of the present invention includes a pressing/transferring member for pressing, when a toner image transferred from a photoconductive drum to a first image transfer body by primary image transfer is to be transferred to ... | 02/14/2006 |
| 6947701 | Image forming apparatus and image forming method There is provided an image forming apparatus that can suppress the formation of creases when forming images on both surfaces of a sheet and can greatly reduce the incidence of unprinted areas. The image forming apparatus has a sheet stacking section in which sheets ... | 09/20/2005 |
| 6923522 | Recording apparatus and recording method Each of pixels of recorded image is formed by a plurality of dots composed with ink droplets ejected from a plurality of different orifices at individual different main-scannings. With this recording process, the variation of ink ejection characteristics between a p... | 08/02/2005 |
| 6682191 | Vacuum drums for printing, and duplex printers A vacuum drum assembly for a printing machine has a drum with an array of passageways distributed along its length and around its periphery. The passageways permit air to flow from outside the drum to inside the drum in response to reduced air pressure in... | 01/27/2004 |
| 6460991 | Vacuum drums for printing, and duplex printers A vacuum drum assembly for a printing machine has a drum with an array of passageways distributed along its length and around its periphery to permit airflow from outside the drum to inside the drum in response to reduced air pressure inside the drum. An ... | 10/08/2002 |
| 5865433 | Variable mask and universal vacuum drum A vacuum drum apparatus on which a mask is mounted having a resilient surface and an array of holes suitable for a substrate of a given size. The drum is a circular cylinder perforated with an array of holes. A hollow chamber within the drum is connected ... | 02/02/1999 |
| 5602633 | Image forming apparatus with low ozone generation and improved image quality A color printer includes a conveyer belt for conveying a paper sheet to make the sheet pass through a plurality of photoconductive drums. A suction roller for sucking a supplied paper sheet on the conveyer belt is provided on the upstream side of the phot... | 02/11/1997 |
| 5515151 | Apparatus for controlling image disturbing effects of a sheet motion opposing force A sheet transport apparatus for transporting an image carrying sheet into a fusing apparatus without image disturbances from a sheet motion opposing force. The sheet transport apparatus includes a baffle plate positioned along a line of sheet movement int... | 05/07/1996 |
| 5485258 | Vacuum coupling arrangement for applying vibratory motion to a flexible planar member An apparatus for enhancing transfer of a developed toner image from an image bearing member to a support substrate in an electrostatographic printing machine including a resonator suitable for generating vibratory energy arranged in line contact with the ... | 01/16/1996 |
| 5307131 | Color image registration system using vacuum transfer drum An apparatus for registering successive toner images to a sheet includes a rotatable photoreceptor drum having a transfer zone on its circumferential surface at which toner images are transferred to the sheet, a generally cylindrical member having a circu... | 04/26/1994 |
| 5291260 | Image forming apparatus having a transfer drum with a vacuum sheet holding mechanism An image forming apparatus in which toner images are transferred using a combination of heat and pressure to a receiving sheet includes a transfer drum with a vacuum holding means for the receiving sheet. To prevent a loss of nip pressure over vacuum hole... | 03/01/1994 |
| 5155535 | Transfer apparatus having a transfer member with vacuum means A transfer member, for example, a transfer drum utilizes a vacuum applied through vacuum openings to the drum surface for holding a receiving sheet. A toner image is transferred to the sheet under the urging of an electric field. The vacuum openings are m... | 10/13/1992 |
| 5081506 | Transfer system for a color printer An apparatus in which successive toner images are transferred from a photoconductive drum to a sheet at a transfer zone. The sheet is transported by a perforated belt entrained about a stationary sleeve through a recirculating path. The sleeve has a plura... | 01/14/1992 |
| 5075734 | Sheet transport system with improved registration An apparatus which advances a sheet through a transfer zone and into registration with information developed on a moving member. The sheet is advanced to a position wherein a leading portion thereof is within the transfer zone and a trailing portion there... | 12/24/1991 |
| 5058876 | Device for controlling feeder blowing air and feeder suction air in a sheet feeder of a printing machine A device for controlling feeder blowing air and feeder suction air in a sheet feeder of a printing machine having a sheet delivery, including a first control unit for controlling feeder blowing air and a second control unit for controlling feeder suction ... | 10/22/1991 |
| 5040029 | Multicolor image transfer method and apparatus Color toner images are transferred in registry to a receiving sheet held on a transfer drum. To facilitate releasing the sheet with the last image the drum surface is roughened, providing at least 0.002 inches between peaks and valleys. To offset difficul... | 08/13/1991 |
| 5006900 | Transfer apparatus having vacuum holes and method of making such apparatus A transfer apparatus includes a transfer member, for example, a transfer drum with a line of small closely spaced laser drilled vacuum holes to hold a receiving sheet to the drum surface. To maintain the continuity of a transfer field but be free from clo... | 04/09/1991 |
| 4959693 | Duplex reproducing apparatus with device for cooling and conveying fused toner image An aerial recording sheet carrier is provided downstream of a fixing station. The aerial recording sheet carrier has one pair of pressure chambers with wall surfaces facing each other and in parallel. Air jets are arranged on opposite wall surfaces of the... | 09/25/1990 |
| 4949129 | Apparatus for transferring toner images to a receiving sheet A transfer member, for example, a transfer drum utilizes a vacuum applied through vacuum holes to the drum surface for holding a receiving sheet. A toner image is transferred to the sheet under the urging of an electric field. To prevent non-transfer over... | 08/14/1990 |
| 4941020 | Transfer apparatus having vacuum holes for holding a receiving sheet Apparatus for transferring a toner image to a receiving sheet includes a transfer member with vacuum holes. To enhance the continuity of the transfer electric field, a conductive screen is placed on top of the vacuum holes. According to a preferred embodi... | 07/10/1990 |
| 4924273 | Roller transfer apparatus An improved transfer apparatus for use in an electrostatographic copier including a dielectric member adapted to carry electrostatically developed marking particle images. The transfer apparatus comprises a cylindrical roller mounted for rotation about it... | 05/08/1990 |
| 4914483 | Electrostatographic transfer with artifact suppression An electrostatographic reproduction apparatus includes an image member for bearing toned electrostatic images, and transfer apparatus having a transfer member for transferring toned images from the image member to a receiver sheet with a given transfer ef... | 04/03/1990 |
| 4903074 | Plural belt document feeder with optimum optical properties A document feeder is provided for presenting documents to the platen of a copier for copying with a vacuum belt platen transport system having document transporting belts movable under a substantially planar vaccum plenum backing. Also included is a vacuu... | 02/20/1990 |
| 4903047 | Electrophotographic printer An electrophotographic printer having a photosensitive drum disposed in a body for transferring an electrostatically adhered toner to the lower surface of a sheet, a fixing unit disposed at the downstream side of the photosensitive drum for fixing the ton... | 02/20/1990 |
| 4831419 | Document handler vacuum belt platen transport clamping system A document handler 20 for presenting documents to the platen 23 of a copier 10 for copying with a vacuum belt platen transport system 32 having document transporting belts 35 movable under a substantially planar vacuum plenum backing and imaging backgroun... | 05/16/1989 |
| 4825255 | Document handler vacuum belt platen transport system A document handler 20 for presenting documents to the platen 23 of a copier 10 for copying with a vacuum belt platen transport system 23 having plural unapertured, thin, low-frictional, document transporting belts 35 with substantial exposed spaced 35a be... | 04/25/1989 |
| 4794429 | Automatic dual mode sheet and web document transport for copiers In an automatic document handling system for a copier, with a system for feeding and registering document sheets, including a platen transport system, wherein the platen transport system includes a document belt system and a vacuum system for retaining do... | 12/27/1988 |
| 4787615 | Device for automatically supplying/discharging photosensitive material in an inclined-type step and repeat machine A device for supplying/discharging PS plates in an inclined-type step and repeat machine having a rearwardly inclined exposing table which includes a supplying holder disposed on a side of the exposing table for supplying the PS plate thereto, the holder ... | 11/29/1988 |
| 4740813 | Locating and tacking mechanism for a roller transfer apparatus A transfer roller apparatus for use for example in an electrographic copier including a dielectric member adapted to carry electrostatically developed marking particle images. The transfer roller apparatus employs a locating and tacking mechanism of simpl... | 04/26/1988 |
| 4703923 | Recirculating automatic document feeder A document feeder is disclosed wherein a document stack is bent or curved when it rests on a fixed curved stackholding tray. A stack of paper becomes rigid when curved, and therefore, capable of being raised by applying an upward force along the curved ed... | 11/03/1987 |
| 4589652 | Plural level vacuum document feeder In a document feeder with a vacuum belt platen transport system for transporting document sheets over the platen of a copier under a white vacuum plenum backing surface closely overlying the platen and into a registration position for imaging the document... | 05/20/1986 |
| 4589651 | Vacuum document feeder In a document feeder with a vacuum belt platen transport system for transporting document sheets over the platen of a copier under a vacuum plenum backing surface closely overlying the platen and into a registration position for imaging the document sheet... | 05/20/1986 |
| 4580771 | Sheet transfer apparatus An automatic sheet feeding mechanism adapted to separate a single sheet from a stack of sheets and transfer the single sheet via airjets to the exposure platen of an exposing apparatus. After airjet positioning and exposure, the single sheet is lifted fro... | 04/08/1986 |
| 4550999 | Electrophotographic copying apparatus including transfer hold-down pump An electrophotographic copying apparatus has an electrically charged toner of one polarity which is transformed from an oppositely electrically charged surface of a photoconductive drum to the front side of a blank sheet where the front side of the blank ... | 11/05/1985 |
| 4537493 | Copy sheet positioning apparatus Copy sheet positioning apparatus is provided in electrographic apparatus which produces copies of at least first and second dimensions and which includes a movable image transfer member upon which transferable unfixed images are formed. The copy sheet pos... | 08/27/1985 |
| 4436405 | Apparatus and method for registering related transferable images in accurate superposition on a receiver member In an electrographic copier forming related transferable images at spaced locations on an image-carrier and transferring such images seriatim to a receiver member by actuation of a movable transfer mechanism, an improvement for registering such related im... | 03/13/1984 |
| 4421306 | Document feeder with improved vacuum system A document feeder defines a sheet path along which a document sheet is fed across a platen of a copier/duplicator, for example, in order to copy the sheet. An oscillating vacuum tube feeds sheets from a supply into the sheet path. The feeder includes a pl... | 12/20/1983 |
| 4410263 | Sheet handling device for image transfer in an electrographic copier Apparatus for transferring seriatim related transferable images from sequentially spaced image-receiving areas on the member onto a surface of a moving receiver sheet. The transfer apparatus includes a mechanism which captures the lead and trail edges of ... | 10/18/1983 |
