IMAGE FORMING APPARATUS
To reduce a detection error in a system for detecting the amount of developer in a developer container by measuring the number of pixels of an image part.SOLUTION: An image forming apparatus 200 has: an image carrier 201; electrostatic image forming means 202, 204 that form an image part of an elect...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To reduce a detection error in a system for detecting the amount of developer in a developer container by measuring the number of pixels of an image part.SOLUTION: An image forming apparatus 200 has: an image carrier 201; electrostatic image forming means 202, 204 that form an image part of an electrostatic image on the image carrier 201; a developing device 209 in which developer is supplied to a storage unit 207 from a supply container 223 connected with the storage unity 207; and an acquisition unit 240 that acquires first information on the number of pixels of the image part, and corrects the first information according to second information on the amount of developer supplied from the supply container 223 to the storage unit 207 and acquires the corrected information as third information on the amount of developer in the storage unit 207.SELECTED DRAWING: Figure 1
【課題】画像部の画素数を計測することで現像容器内の現像剤量を検知する方式における検知誤差を抑制する。【解決手段】画像形成装置２００は、像担持体２０１と、像担持体２０１上に静電像による画像部を形成する静電像形成手段２０２、２０４と、収容部２０７に接続される補給容器２２３から収容部２０７に現像剤が補給される現像装置２０９と、画像部の画素数に関する第１の情報を取得し、第１の情報を補給容器２２３から収容部２０７に補給された現像剤量に関する第２の情報に応じて補正して収容部２０７内の現像剤量に関する第３の情報として取得する取得部２４０と、を有する構成とする。【選択図】図１ |
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