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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7941070 | Electrophotographic photosensitive member and image forming apparatus using same The present invention relates to an electrophotographic photosensitive member including a substantially cylindrical body and a photosensitive layer formed on the outer circumference of the body. The body has an outer diameter larger at a middle portion of a latent i... | 05/10/2011 |
| 7725050 | Heated drum assembly having a multiple speed fan for use in a printer A heated drum assembly improves thermal control of a rotating drum in a printer. The assembly includes a hollow drum, two stationary heaters located within an internal cavity of the drum, one of the two stationary heaters being at one end of the drum and the other s... | 05/25/2010 |
| 7620343 | Image forming apparatus and method having cleaner using titanium oxide particles The present invention provides an image forming apparatus and an image forming method capable of effectively suppressing the occurrence of image deletion etc. and thus stably obtaining a high-quality image and stably reducing the influence of titanium oxide particle... | 11/17/2009 |
| 7477861 | Temperature control device and image forming apparatus A temperature control device includes a first heat source, a second heat source configured to heat a controlled object subjected to temperature control, a first temperature detector configured to detect a temperature of heat from the first heat source, a second temp... | 01/13/2009 |
| 7398031 | Image forming apparatus with heat control of image bearing member An image forming apparatus has an image bearing member on which an electrostatic latent image is formed and toner deposited to form a toner image, a heater disposed at a position out of contact with the surface of the image bearing member to output radiant heat to t... | 07/08/2008 |
| 7346289 | Image forming apparatus An image forming apparatus that can maintain the accuracy of temperature control of an object to be heated within a predetermined range and avoid adverse effects of contamination of first temperature detection means. The image forming apparatus 1 has a photos... | 03/18/2008 |
| 7336405 | Thermal fixing device for controlling the temperature of a heat member to melt toner on a recording sheet A thermal fixing device for fixing toner images onto recording sheets includes a heat member, a pressing member, a temperature sensor, a clock, and a control unit. The control unit performs a toner fixing control and a high-temperature heat-up control. During the to... | 02/26/2008 |
| 7280785 | Image forming apparatus An image forming apparatus provided with a photosensitive member, a charging device for charging the photosensitive member, a developing device for developing an electrostatic image formed on the photosensitive member by a developer, a cleaning blade for removing th... | 10/09/2007 |
| 7231155 | Image forming apparatus with a power controlled flux generator as a function of a detected temperature of an image bearing surface An image forming apparatus includes an image bearing member; an image forming device for forming an image on the image bearing member through steps including a step of electrically charging the image bearing member to a substantially uniform potential, wherein the i... | 06/12/2007 |
| 7199898 | Developing device and image forming apparatus A developing device including: a first developer carrying member for carrying a developer to develop a latent image formed on an image bearing member; a first regulating member, disposed on one end of a longitudinal direction of the image bearing member, for regulat... | 04/03/2007 |
| 7177581 | Image forming apparatus An image forming apparatus provided with a photosensitive member, a charging device for charging the photosensitive member, a developing device for developing an electrostatic image formed on the photosensitive member by a developer, a cleaning blade for removing th... | 02/13/2007 |
| 7103297 | Robust apparatus and method of grounding a drum photoreceptor assembly A grounding method and apparatus for robustly grounding a photoreceptor assembly, including a conductive photoreceptor drum, in a xerographic image producing machine. The grounding apparatus includes (a) a flange including a first portion having a first diameter and... | 09/05/2006 |
| 7099612 | Toner cartridge used with electrophotographic image forming apparatus A toner cartridge used with an electrophotographic image forming apparatus includes a developing roller that develops an electrostatic latent image formed on an outer circumferential surface of a photosensitive drum, a toner supplying roller that supplies toner onto... | 08/29/2006 |
| 7050737 | Belt device and image forming apparatus using the same In a belt device passed over a plurality of rollers one of which is adjacent to a heat source, the temperature of part of a belt moving in the vicinity of the heat source varies little relative to the temperature of the other part of the belt. ... | 05/23/2006 |
| 7024130 | Rotating body, cooling apparatus that cools a rotating body, and image forming apparatus that uses a rotating body and a cooling apparatus A cooling apparatus cools a rotating body in an image forming apparatus. The cooling apparatus includes a hollow cylindrical rotating body rotating about a longitudinal axis, a cooling section, and a drive source. The cooling section is located outside of the rotati... | 04/04/2006 |
| 7020412 | Image forming apparatus that prevents generation of image noise by controlling creep of a flexible movable member In order to prevent generation of image noise by controlling creep of a movable member having flexibility an image forming apparatus for forming images in a recording medium includes a movable member having flexibility, a detection section for detecting temperature ... | 03/28/2006 |
| 6977130 | Method of manufacturing an electronic circuit and manufacturing apparatus of an electronic circuit A method of manufacturing an electronic circuit satisfying demands for cost reduction, diversified small-quantity production, and a shorter cycle of design, manufacture, evaluation, correction, and so on is provided. The method includes at least forming a first patt... | 12/20/2005 |
| 6963720 | Image forming method and image forming apparatus with toner having specific characteristic In a toner image forming method, toner contains toner particles having a shape coefficient falling within a range of 1.0 to 1.6 in an amount of 65% by number or more and the toner particles has a variation coefficient of the shape coefficient of 16% or less. In a st... | 11/08/2005 |
| 6512562 | Protective film for polarizing plate A protective film for a polarizing plate is disclosed in which an contact angle of the surface in contact with a polarizer with respect to pure water is less than 55° and the surface in contact with a polarizer becomes hydrophilic due to a plasma treatme... | 01/28/2003 |
| 6501923 | Image forming apparatus with increased heat dissipation structure An image forming apparatus according to the invention includes a photosensitive belt for carrying an electrostatic latent image, a developing roller to be brought into contact with the photosensitive belt for supplying a non-magnetic mono-component develo... | 12/31/2002 |
| 6489069 | Electrophotographic image carrier and image forming apparatus, image forming method and processing cartridge using it An electrophotographic image carrier is disclosed. The image carrier has a photoreceptor made from a photoreceptive layer and a resin layer. The resin layer is made of a siloxane resin having a cross-linked structure, and contains an anti-oxidant.... | 12/03/2002 |
| 5953552 | Image forming apparatus and method for detecting connected object The invention provides an image forming apparatus for forming, on a image carrier, an electrostatic latent image corresponding to a document image, and then providing an image based on the electrostatic latent image formed on the image carrier, has first ... | 09/14/1999 |
| 5950039 | Image forming apparatus having circuits for adjusting light beam intensity and diameter The temperature and humidity around a photoreceptor drum and the total number of copied sheets of the photoreceptor drum are detected. Data LDATA for setting the intensity of a laser beam and data BDATA for setting the beam diameter according to the detec... | 09/07/1999 |
| 5788382 | Imaging drum An imaging drum assembly is disclosed and which includes an inner substantially cylindrically shaped sleeve, the inner sleeve having an outwardly facing surface, and an inwardly facing surface, and wherein the inwardly facing surface has a plurality of sp... | 08/04/1998 |
| 5689768 | Electrophotographing apparatus for collecting toner from a photosensitive member and conveying it to developing means An electrophotographing apparatus with a reusable toner system includes a photosensitive member capable of bearing toner thereon, a latent image forming unit for forming a latent image on the photosensitive member, a developing unit for developing the lat... | 11/18/1997 |
| 5689767 | Isothermalizing member for a printing machine An apparatus for maintaining a uniform temperature along its axis by increasing the heat transfer efficiency. The apparatus uses a sealed chamber containing a substantially pure working fluid in a two phase (liquid and vapor) condition. The vaporization a... | 11/18/1997 |
| 5428432 | Electrophotographic recording apparatus having integrated heating and cooling device An electrophotographic recording apparatus in which a thin endless metal belt having a photoconductive photosensitive layer on an outer circumferential surface is provided around a drive roller and an integrated heating and cooling unit, and rotated by th... | 06/27/1995 |
| 5300987 | Image forming apparatus which reduces or eliminates density irregularity due to thermal deformation of a developing sleeve An image bearing member of an image forming apparatus is heated both during an image forming operation and during an inoperative condition. At least two developing sleeves are opposed to the image bearing member. An angular difference between an angle by ... | 04/05/1994 |
| 5130751 | Rotary drum structure in an image-forming machine A drum support structure equipped with a rotary drum and a drum support shaft. The rotary drum includes a cylindrical main body with a photosenstive member disposed on the peripheral surface thereof, and a front flange and a rear flange fixed to the front... | 07/14/1992 |
| 5019862 | Heat control for photoreceptor Quality of images formed electrophotographically on a photoreceptor is improved by controllingly switching on and off a heater for the photoreceptor such that the photoreceptor temperature remains higher than the measured ambient temperature by several °... | 05/28/1991 |
| 4720727 | Image forming apparatus An image forming apparatus includes a drum heater for heating an image bearing member and a guide for guiding air to the image bearing member. The guide forms a path of the air flow. In the path, there are provided a filter for removing dust from the air ... | 01/19/1988 |
| 4659206 | Photoconductive drum device for electrostatic copying machines or the like A photoconductive drum device for electrostatic copying machines or the like includes a temperature maintaining heater bent to a cylindrical form and accommodated in the main body of a photoconductive drum. The heater is constructed with a base plate and ... | 04/21/1987 |
| 4607936 | Electrophotographic apparatus comprising photosensitive layer of amorphous silicon type photoconductor Disclosed is an electrophotographic apparatus comprising a photosensitive drum comprising an amorphous silicon type photoconductor layer formed on an electroconductive substrate, a main charging mechanism for charging the surface of the drum with charges ... | 08/26/1986 |
| 4585319 | Recording apparatus for electrostatic images A recording apparatus for electrostatic images comprising a photoreceptor, an intermediate transfer substance and a means for heating toner images transferred onto said intermediate transfer substance and transferring again and fixing them onto a transfer... | 04/29/1986 |
| 4512653 | Method and apparatus for thermally-assisted grounding of an electrographic imaging member Apparatus is disclosed for softening and displacing electrically insulative material on a portion of the surface of an electrographic imaging web by heat and pressure to effect electrical contact (e.g. grounding) with an isolated conductive layer thereof.... | 04/23/1985 |
| 4497566 | Correction of image defects in photoconductive film Image defects in liquid-developed photoconductive film, which before use has been stored in roll form at elevated temperature, are corrected by an on-line treatment of the film prior to development. The method comprises heating the photoconductive film pr... | 02/05/1985 |
| 4367036 | Temperature and humidity compensating device in an image forming apparatus A temperature and humidity compensating device is provided in electrophotographic apparatus including a photosensitive medium having a photoconductive layer, an image forming unit for forming an electrostatic latent image on the photosensitive medium, a h... | 01/04/1983 |
| 4319828 | Copying apparatus with a heated photosensitive drum An image forming device has a photosensitive member upon which a latent image is formed and then developed into a visible image and device for heating said photosensitive member.... | 03/16/1982 |
