JP2009251356A5 - - Google Patents

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Publication number
JP2009251356A5
JP2009251356A5 JP2008100295A JP2008100295A JP2009251356A5 JP 2009251356 A5 JP2009251356 A5 JP 2009251356A5 JP 2008100295 A JP2008100295 A JP 2008100295A JP 2008100295 A JP2008100295 A JP 2008100295A JP 2009251356 A5 JP2009251356 A5 JP 2009251356A5
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JP
Japan
Prior art keywords
fan
fans
driven
image
forming apparatus
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Application number
JP2008100295A
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Japanese (ja)
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JP5252972B2 (en
JP2009251356A (en
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Priority to JP2008100295A priority Critical patent/JP5252972B2/en
Priority claimed from JP2008100295A external-priority patent/JP5252972B2/en
Publication of JP2009251356A publication Critical patent/JP2009251356A/en
Publication of JP2009251356A5 publication Critical patent/JP2009251356A5/ja
Application granted granted Critical
Publication of JP5252972B2 publication Critical patent/JP5252972B2/en
Expired - Fee Related legal-status Critical Current
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Claims (4)

複数のファンを有する冷却装置において、
前記複数のファンの各々は駆動された際、駆動されたことを示すファン出力信号を出力し、
前記複数のファンから出力されるファン出力信号によってオン動作する複数のスイッチ、前記複数のスイッチにそれぞれ直列に接続されるとともに互いに並列に接続され異なった抵抗値を有する複数の抵抗、及び該複数の抵抗に接続され基準電圧が印加される基準抵抗を有し、オンした前記スイッチに直列に接続された前記抵抗による合成抵抗と前記基準抵抗との分圧によって前記基準電圧に応じたファン回転検出信号を出力する分圧手段と、
前記複数のファンのうちの駆動されたファンの組み合わせと前記ファン回転検出信号が示す電圧レベルとが規定されたテーブルを記憶する記憶手段と、
前記分圧手段から出力された前記ファン回転検出信号が示す電圧レベルと前記テーブルとに基づき、前記駆動されたファンのうち異常動作が生じているファンを特定する特定手段と、
を備えることを特徴とする冷却装置。 In a cooling device having a plurality of fans,
When each of the plurality of fans is driven, it outputs a fan output signal indicating that it is driven,
A plurality of switches turned on by the fan output signal output from the plurality of fans, a plurality of resistors having connected different resistance values respectively in parallel to each other Rutotomoni connected in series with said plurality of switches, and the plurality of A fan rotation detection signal corresponding to the reference voltage by dividing the combined resistance of the resistor connected in series with the resistor and the reference resistor, which has a reference resistor connected to the resistor and to which a reference voltage is applied. Voltage dividing means for outputting,
Storage means for storing a table in which a combination of driven fans among the plurality of fans and a voltage level indicated by the fan rotation detection signal are defined;
Specifying means for the partial based pressure means and the fan rotation detection signal is a voltage level indicating output from the said table to identify the fan abnormal operation has occurred among the driven fan,
A cooling device comprising: 前記複数のファンのうちの駆動されたファンの組み合わせとしてオンした前記スイッチに直列に接続された抵抗の組み合わせを用いるようにしたことを特徴とする請求項１冷却装置。 Wherein the plurality of claim 1 a cooling device, characterized in that to use a combination of resistors connected in series with the switch turned on as a combination of the driven fan of the fan. 前記特定手段によって異常動作が生じたファンが特定されると、異常動作が生じた旨及び異常動作が生じたファンを報知する報知手段を備えることを特徴とする請求項１又は２記載の冷却装置。 3. The cooling apparatus according to claim 1, further comprising a notification unit that notifies that the abnormal operation has occurred and the fan in which the abnormal operation has occurred when the fan that has generated the abnormal operation is specified by the specifying unit. . 画像データに応じて画像形成を行う画像形成装置において、
請求項１〜３のいずれか１項記載の冷却装置を備え、
前記複数のファンとして少なくとも画像形成装置を制御するコントローラユニットを冷却するファン、前記電源供給のための電源ユニットを冷却するファン、前記画像形成装置に備えられたモータ、および画像形成の際にトナー像が担持される像担持体を所定の温度に保つためのファンを有することを特徴とする画像形成装置。 In an image forming apparatus that forms an image according to image data,
E Bei a cooling device according to claim 1 to 3 set forth in any one,
A fan that cools at least a controller unit that controls the image forming apparatus as the plurality of fans, a fan that cools the power supply unit for supplying power, a motor provided in the image forming apparatus, and a toner image during image formation An image forming apparatus comprising a fan for maintaining an image carrier on which the toner is carried at a predetermined temperature .
JP2008100295A 2008-04-08 2008-04-08 Cooling device and image forming apparatus Expired - Fee Related JP5252972B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008100295A JP5252972B2 (en) 2008-04-08 2008-04-08 Cooling device and image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008100295A JP5252972B2 (en) 2008-04-08 2008-04-08 Cooling device and image forming apparatus

Publications (3)

Publication Number Publication Date
JP2009251356A JP2009251356A (en) 2009-10-29
JP2009251356A5 true JP2009251356A5 (en) 2011-05-26
JP5252972B2 JP5252972B2 (en) 2013-07-31

Family

ID=41312121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008100295A Expired - Fee Related JP5252972B2 (en) 2008-04-08 2008-04-08 Cooling device and image forming apparatus

Country Status (1)

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JP (1) JP5252972B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013031019A1 (en) * 2011-09-02 2013-03-07 トヨタ自動車株式会社 Fuel supply device for internal combustion engine
US9982680B2 (en) * 2013-10-23 2018-05-29 Hewlett-Packard Development Company, L.P. Fan operation detection
JP6572290B2 (en) 2017-11-22 2019-09-04 ファナック株式会社 Electronic equipment abnormality detection device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2679655B2 (en) * 1994-11-25 1997-11-19 日本電気株式会社 Abnormality judgment circuit for redundant operation system
JP2000235338A (en) * 1999-02-16 2000-08-29 Ricoh Co Ltd Image forming device
JP2001193687A (en) * 2000-01-12 2001-07-17 Nec Eng Ltd Faulty fan detection device
JP2005031410A (en) * 2003-07-14 2005-02-03 Konica Minolta Business Technologies Inc Image forming apparatus
JP4095605B2 (en) * 2004-10-28 2008-06-04 キヤノン株式会社 Fan control method and apparatus for implementing the same
JP4793127B2 (en) * 2006-06-23 2011-10-12 コニカミノルタビジネステクノロジーズ株式会社 Image forming apparatus

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