CONVEYANCE BELT DEVICE AND IMAGE RECORDING SYSTEM

To efficiently remove a cleaning droplet on a conveyance belt generated by a cleaning part in various kinds of conveyance belt devices.SOLUTION: A conveyance belt device 200 includes an endless conveyance belt 211 on which an adhesive is applied to convey a recording medium T, rollers 212, 213 on which the conveyance belt 211 is stretched to drive, a cleaning part 220 which cleans foreign matters adhering to the conveyance belt with a cleaning liquid, and an air knife nozzle 230 which sprays compressed air to the conveyance belt 211 on a conveyance downstream side of the cleaning part 220. A spraying port of the air knife nozzle 230 is arranged so that the compressed air is sprayed to an upward conveyance belt 211 from a lower side than a virtual horizontal line within a range of a circumferential curved surface with which the first roller 212 and the conveyance belt 211 contact.SELECTED DRAWING: Figure 2 【課題】各種の搬送ベルト装置に対し、洗浄部によって生ずる搬送ベルト上の洗浄滴を効果的に除去する。【解決手段】搬送ベルト装置２００は、記録媒体Ｔを搬送するために粘着剤を塗布した無端状の搬送ベルト２１１と、搬送ベルト２１１を張架し駆動するためのローラー２１２、２１３と、搬送ベルトに付着した異物を洗浄液で洗浄する洗浄部２２０と、洗浄部２２０の搬送下流側で、搬送ベルト２１１に圧縮空気を吹き付けるエアナイフノズル２３０と、を有し、エアナイフノズル２３０の吹き出し口が、第１ローラー２１２と搬送ベルト２１１が接している円周曲面の範囲内で、仮想水平線よりも下方側から、上方の搬送ベルト２１１に向けて圧縮空気を吹き付けるように配置されている。【選択図】図２