| Patent Number |
Title Of Patent |
Date Issued |
| 7035562 |
Image forming apparatus with a changeable transfer bias for transferring a toner patch image |
April 25, 2006 |
| An image forming apparatus includes an image bearing member for carrying a toner image; an image forming unit for forming a toner image on the image bearing member; a transfer material carrying member, for carrying a transfer material, wherein the toner image is transferred onto a transf |
| 6091913 |
Image forming apparatus for controlling transfer intensity by detecting toner test images |
July 18, 2000 |
| An image forming apparatus includes an image bearing member for carrying a toner image; an image forming unit for forming a toner test image on the image bearing member; a transfer material carrying member, for carrying a transfer material, wherein the test toner image is transferred ont |
| 6016418 |
Image forming apparatus |
January 18, 2000 |
| An image forming apparatus includes an image bearing member for electrostatically bearing a toner image; a dielectric member movable along an endless path through a transfer position of the image bearing member; an electroconductive member in contact with the dielectric member at a s |
| 5678130 |
Developing apparatus including a control function for applied periodic developing bias field |
October 14, 1997 |
| A developing apparatus includes a developer carrying member, disposed opposed to an image bearing member, for carrying a developer; a developing bias voltage applying source for applying a developing bias voltage having an oscillating component to the developer carrying member to develop |
| 5608505 |
Image forming apparatus |
March 4, 1997 |
| An image forming apparatus includes an electrophotographic photosensitive member; a charger for charging the photosensitive member to form an electrostatic latent image on the photosensitive member; an exposure device for exposing the photosensitive member to image light; a developing |
| 5523829 |
Image forming apparatus having recording material carrying member |
June 4, 1996 |
| An image recording apparatus includes an image bearing member; a recording material carrying member for carrying a recording material to a transfer position for transfer of an image; a moving device for imparting relative movement between the image bearing member and the recording materi |
| 5471284 |
Image forming apparatus having toner depletion detection feature |
November 28, 1995 |
| An image forming apparatus usable with a process cartridge for forming an image on a recording material. The process cartridge includes an image bearing member, and at least one developing device for developing a latent image formed on the image bearing member with a developer. Each of s |
| 5414493 |
Image forming apparatus |
May 9, 1995 |
| An image forming apparatus includes a detachably mountable process cartridge, the process cartridge including an image bearing member and a color developing device actable on the image bearing member, the color developing device containing plural developing units having yellow develo |
| 5307127 |
Developing apparatus using one component toner with improved flowability |
April 26, 1994 |
| A developing apparatus includes a developer carrying member for supplying a developer to an image bearing member, wherein the developer is a one component developer, and has a flowability index of 5-30%. A developing bias voltage application device applies a developing bias to the develo |
| 5220386 |
Image forming apparatus having cleanable transfer material carrying means |
June 15, 1993 |
| An image forming apparatus for forming an image on a transfer material includes: an image bearing member; a device for forming an image on the image bearing member; a developing device for developing the image into a developed image; a transfer material carrying device; an image transfer |
| 5084733 |
Developing apparatus having developer layer regulation means |
January 28, 1992 |
| A developing apparatus including a developer carrying member for carrying a developer, a magnet disposed in the developer carrying member, and an elastic regulating member contacting the developer carrying member to regulate a thickness of a layer of the developer formed on the developer |
| 4989044 |
Developing apparatus for developing electrostatic latent images |
January 29, 1991 |
| A developing apparatus using one component developer includes a developing sleeve for carrying the developer to a developing zone. The developing sleeve has an outer coating layer made of resin material in which electrically conductive fine particles are dispersed. |
