| 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 |
| 6151477 |
Image forming apparatus with movable member for receiving image transferred from image bearing m |
November 21, 2000 |
| An image forming apparatus comprises an image bearing member for bearing an image, and a movable member which is abutted against the image bearing member and onto which the image on the image bearing member is transferred. The movable member includes a substrate, a sheet-like member, |
| 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 |
| 5715506 |
Image forming apparatus comprising a mechanism for positioning a rotatable member and a transfer |
February 3, 1998 |
| An image forming apparatus has a recording medium bearing member bearing a recording medium thereon and rotatable, the recording medium bearing member having in the surface thereof a recess extending in the direction of the rotary shaft thereof, image formation being effected on the |
| 5678151 |
Toner adhesion preventing mechanism for image forming apparatus |
October 14, 1997 |
| An image forming apparatus includes an image bearing member, an image forming means for forming a toner image on the image bearing member, a rotary member contacted with a surface of the image bearing member, a transfer member for transferring the toner image from the image bearing m |
| 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 |
| 5600423 |
Image forming apparatus including a transfer medium bearing member having a sheet member for bea |
February 4, 1997 |
| An image forming apparatus has an image bearing member bearing images thereon and movable, and a transfer medium bearing member provided in pressure contact with the image bearing member and bearing a transfer medium thereon and rotatable. The transfer medium bearing member has a she |
| 5596393 |
Image forming apparatus having charging member supplied with oscillating voltage |
January 21, 1997 |
| An image forming apparatus includes image bearing member or members for bearing an image; charging member for sequentially charging a surface of the image bearing member or members to form an image thereon; a voltage source for applying an oscillating voltage to the charging member, the |
| 5559591 |
Image forming apparatus with function of requesting exchange of fixing unit |
September 24, 1996 |
| An image forming apparatus including image forming unit for forming an unfixed image on a recording medium, a pair of fixing rotary members for fixing the unfixed image on the recording medium, a cleaning member for cleaning surfaces of the fixing rotary members, the fixing rotary member |
| 5543904 |
Fixating device |
August 6, 1996 |
| A fixating device has a first rotatable member in contact with an unfixated image borne on a recording medium, a second rotatable member forming a nip together with the second rotatable member, a first heater for heating the first rotatable member, a second heater for heating the second |
| 5539507 |
Image forming apparatus having transfer material bearing member |
July 23, 1996 |
| The present invention provides an image forming apparatus with an image bearing member for bearing an image, and a transfer material bearing member rotatable for bearing a transfer material. The image on the image bearing member is transferred onto the transfer material born by the t |
| 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 |
| 5508796 |
Image forming apparatus with select relation among distances in recording material conveyance pa |
April 16, 1996 |
| The present invention provides an image forming apparatus with an image bearing member capable of rotating while bearing a toner image thereon, a transfer device for transferring the toner image from the image bearing member to a recording material at a transfer position, recording mater |
| 5402218 |
System for reducing a surface potential of an image bearing member in an image forming apparatus |
March 28, 1995 |
| An image forming apparatus includes an image bearing member, a latent image forming device for forming a latent image having a high potential portion and a low potential portion before a toner image is formed on the image bearing member, a transfer material bearing member for bearing and |
| 5390012 |
Image forming apparatus having transfer material carrying member |
February 14, 1995 |
| An image forming apparatus includes an image bearing member; an image forming device 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 electrostatically transferred onto the transfer |
| 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 |
