IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To satisfactorily clean a transfer member even when an environmental condition is changed without causing an increase in size and cost.SOLUTION: When jam recovery occurs (S1), an image forming apparatus sets a recovery operation execution flag (S2), cancels the jam recovery (S3...

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Bibliographic Details
Main Authors KATO TSUTOMU, KATO YUJI, MIZUTANI TAKEHIDE, ICHIHASHI OSAMU, TANAKA SHINYA, TAKAHASHI YASUSHI, ISHII KOICHI
Format Patent
LanguageEnglish
Japanese
Published 17.08.2017
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To satisfactorily clean a transfer member even when an environmental condition is changed without causing an increase in size and cost.SOLUTION: When jam recovery occurs (S1), an image forming apparatus sets a recovery operation execution flag (S2), cancels the jam recovery (S3), detects an environmental condition with a temperature and humidity sensor (S4), when determining that the detected environmental condition is a predetermined environmental condition (in the present embodiment, either one of ML, LL, or LLL environment), proceeds to S6 and sets the mode of bias cleaning to a low-speed cleaning mode, when the detected environmental condition is other than the above, proceeds to S7 and sets the mode of bias cleaning to a normal cleaning mode, brings a secondary transfer roller 36 being a transfer member into contact with an intermediate transfer belt 31 being an image carrier (S8), and applies a predetermined cleaning bias and executes bias cleaning (S9).SELECTED DRAWING: Figure 4 【課題】コストアップや大型化を招くことなく、環境条件等が変動した場合でも転写部材を良好にクリーニングする。【解決手段】ジャムリカバリが発生すると（Ｓ１）、復帰動作実行フラグを立てる（Ｓ２）。そして、ジャムリカバリを解除して（Ｓ３）、温湿度センサ等により環境条件を検出する（Ｓ４）。ここで検出した環境条件が所定の環境条件（本実施形態ではＭＬ，ＬＬ，ＬＬＬ環境のいずれか）と判定された場合はＳ６に進み、バイアスクリーニングのモードをクリーニング低速モードに設定する。また、検出した環境条件が上記以外の場合はＳ７に進み、バイアスクリーニングのモードをクリーニング標準モードに設定する。そして、転写部材である二次転写ローラ３６を像担持体である中間転写ベルト３１に当接させ（Ｓ８）、所定のクリーニングバイアスを印加してバイアスクリーニングを実行する（Ｓ９）。【選択図】図４
Bibliography:Application Number: JP20170102494