BELT DEVIATION CORRECTION DEVICE AND FIXING DEVICE, AND IMAGE FORMING APPARATUS

To provide a configuration that can improve practicality of a belt deviation correction device.MEANS FOR SOLVING THE PROBLEM: A belt deviation correction device comprises a pair of pressure members 110 that are arranged on both ends of a pressure roller 172, have a fulcrum engaging part 110e with a rotation fulcrum 113 on one end, are locked to an urging member on the opposite side of the fulcrum engaging part 110e, and press, while rotatably supporting, a pressure roller 172 toward a fixing roller 171 having an elastic layer 171c with a fixing belt 173 therebetween. The belt deviation correction device moves one of the pair of pressure members in a direction intersecting a pressing direction of the pressure roller 172 with moving members 140, 141 in a state where deformation of the elastic layer 171c is managed. Thus, a force acting on a fixing nip N formed by the deformation of the elastic layer 171c of the fixing roller 171 is stabled. As a result of this, a traveling property of the fixing belt 173 is stabled, and deviation control can be accurately performed.SELECTED DRAWING: Figure 7 【課題】ベルト片寄補正装置の実用性を高めることを可能にする構成を提供する。【課題解決手段】加圧ローラ１７２の両端部に配置され、片端に回動支点１１３との支点係合部１１０ｅを有し、支点係合部１１０ｅと反対側で付勢部材に係止され、回転可能に支持した加圧ローラ１７２を定着ベルト１７３を介して弾性層１７１ｃを有する定着ローラ１７１に向かって押圧する一対の加圧部材１１０のひとつを、弾性層１７１ｃの変形が管理された状態で、移動部材１４０、１４１によって加圧ローラ１７２の押圧方向と交差する方向に移動させる。これによって、定着ローラ１７１の弾性層１７１ｃの変形によって形成される定着ニップＮに作用する力が安定する。その結果、定着ベルト１７３の走行性が安定し、精度良く片寄制御を行うことができる。【選択図】図７