| Patent Number |
Title Of Patent |
Date Issued |
| 7542690 |
Color image forming apparatus, and program and method of controlling a color image forming appar |
June 2, 2009 |
| In a color image forming apparatus, a color mode is switched from a full color mode to a single color mode as follows. When the length of an image of a last page in the full color mode is less than the distance from a first-transferring position of a most downstream image forming station |
| 7068955 |
Image forming apparatus having developer amount detector |
June 27, 2006 |
| An image forming apparatus or a cartridge detachably attachable to the image forming apparatus is provided, wherein the apparatus comprises developer container for containing developer, developer amount detecting means for detecting an amount of the developer contained in the developer |
| 7058320 |
Image forming apparatus, cartridge detachably mountable to the image forming apparatus, develope |
June 6, 2006 |
| An image forming apparatus includes a developer container for containing a developer; a developer amount detector for detecting the amount of the developer contained in the developer container; a memory; and a calculator for calculating a display level of the remaining amount of the |
| 6925267 |
MEMORY DEVICE STORING INFORMATION WARNING A USER ABOUT THE DEVELOPER-REMAINING AMOUNT, A PROCESS |
August 2, 2005 |
| An image forming apparatus or a cartridge detachably attachable to the image forming apparatus is provided, wherein the apparatus comprises a developer container for containing developer, a developer amount detector for detecting an amount of the developer contained in the developer |
| 6912366 |
IMAGE FORMING APPARATUS COMPRISING MEANS FOR DETECTING AN AMOUNT OF DEVELOPER CONTAINED IN A DEV |
June 28, 2005 |
| An image forming apparatus or a cartridge detachably attachable to the image forming apparatus is provided, wherein the apparatus comprises developer container for containing developer, developer amount detecting means for detecting an amount of the developer contained in the developer |
| 6714745 |
Image forming apparatus having a plurality of image forming stations, and unit detachably mounta |
March 30, 2004 |
| The present invention provides an image forming apparatus that has a plurality of image forming stations for forming an image on a recording material, each of the plurality of image forming stations having a memory, and writing device for writing data into the memories, wherein when the |
| 6546212 |
Image forming apparatus and unit detachably attachable to the same image forming apparatus and i |
April 8, 2003 |
| The present invention provides an image forming apparatus which has image forming device for forming an image on a recording material, at least one component element of the image forming means being formed in a unit and detachably attachable to a main body of said apparatus, and output d |
| 6496664 |
Image forming apparatus comprising storing means for storing information that a setting operatio |
December 17, 2002 |
| A cartridge detachably mountable to a main body of an image forming apparatus which has a developing device for developing an electrostatic image formed on an image bearing member with two-component developer includes a toner and a carrier. The developing device has a density detecti |
| 6493519 |
Image forming apparatus having a plurality of image forming stations, and unit detachably mounta |
December 10, 2002 |
| The present invention provides an image forming apparatus that has a plurality of image forming stations for forming an image on a recording material, each of the plurality of image forming stations having a memory, and writing device for writing data into the memories, wherein when the |
| 6476837 |
Developer remaining amount detecting apparatus and developer remaining amount detecting method |
November 5, 2002 |
| A developer remaining amount detecting apparatus of a developing apparatus for developing an electrostatic image on an image bearing body, includes a counter means for counting a number of an image data, an integrator means for integrating a using amount on the image bearing body, and op |
| 6415125 |
Developing apparatus featuring an area where a partly exposed developer agitating member and con |
July 2, 2002 |
| A developing apparatus and an image forming apparatus for agitating a two-component developer throughly in a short time, feeds a developer with an even toner concentration to a developer bearing body and stably forms a high-quality image free from defects at any time. A developer agitati |
| 5835818 |
Service life informing device for charged member, informing method thereof, process cartridge an |
November 10, 1998 |
| A life informing device for a charge body includes a body to be charged, and a charging member for charging the charge body. The charging member is adapted to receive an oscillating voltage and to be in contact with the charge body during the charging operation. Also provided is an infor |
| 5799233 |
Charging apparatus and image forming apparatus |
August 25, 1998 |
| A charging apparatus includes a charging member contactable or proximatable to a member to be charged, the charging member being capable of being supplied with a voltage; wherein the charging member has a magnetic particle layer, and a magnetic force generator with a gap for generating |
