发明名称 |
Bilderzeugungsverfahren und Bilderzeugungsvorrichtung |
摘要 |
A remaining amount of toner in an image forming apparatus is determined. The amount of toner remaining determines whether the image forminng apparatus may be in a low toner state or a no toner state. An estimate of the amount of toner remaining is obtained by accurately estimating the amount of toner consumed. Latent patch images formed on a photoconductive member 1 by an exposure unit 3 are developed by developing means 5 to obtain patch images. Densities of the patch images are measured by a patch sensor 22, and the contents of a weighting coefficient LUT 44 are changed. Meanwhile, the amount of toner developed, which corresponds to the changed weighting coefficient, is calculated by a development toner weight calculating unit 45 for each pixel on the basis of an exposure signal. This amount of toner developed is summed by a development toner weight summing means 46. <IMAGE> |
申请公布号 |
DE69736161(T2) |
申请公布日期 |
2007.07.05 |
申请号 |
DE1997636161T |
申请日期 |
1997.10.21 |
申请人 |
SEIKO EPSON CORP. |
发明人 |
FUJITA, TORU;HIRASHIMA, YASUHITO |
分类号 |
G03G15/00;G03G21/00;G03G15/08 |
主分类号 |
G03G15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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