IMAGE FORMING DEVICE

PROBLEM TO BE SOLVED: To provide an image forming device having high productivity and capable of holding down current necessary for a printer operation to suppliable maximum current or lower.SOLUTION: An image forming device comprises a fuser 30 including a heater 100, and a required power calculati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: USAMI DAISUKE, YAMAMOTO TETSUYA, YAMASHITA KENTARO, ITO MASATOSHI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide an image forming device having high productivity and capable of holding down current necessary for a printer operation to suppliable maximum current or lower.SOLUTION: An image forming device comprises a fuser 30 including a heater 100, and a required power calculating unit 319 which calculates power Pfsr assumed to be necessary in the heater 100. The image forming device selects whether to start printing in a normal mode or in power saving mode in which the power to be supplied to the heater 100 is reduced more than the normal mode on the basis of the difference between the required power calculated by the required power calculating unit 319 and suppliable power. There is a plurality of power saving modes. When power saving mode is selected, a CPU 32 selects one power saving mode from the plurality of power saving modes or a combination of power saving modes on the basis of the difference (S120 to S126).SELECTED DRAWING: Figure 7 【課題】プリンタの動作に必要な電流を供給可能な最大電流以下に抑えつつ生産性が高い画像形成装置を提供すること。【解決手段】ヒータ100を有する定着器30と、ヒータ100に必要と想定される電力Pfsrを求める必要電力算出部319と、必要電力算出部319により求められた必要電力と供給可能電力との差分に基づいて、通常モードで印刷を開始するか、通常モードよりもヒータ100に供給される電力を低減させた省電力モードで印刷を開始するかを選択する画像形成装置において、省電力モードは複数のモードがあり、CPU32は、省電力モードを選択した場合、差分に基づいて、複数の省電力モードの中から1つ又はその組合せを選択する(S120〜S126)。【選択図】図7