Anyone could use the real signature and seal of Buncho during his lecturer at his school called Shasanro, and a lot of disciples sold their paintings as Buncho's paintings to earn money.
また画塾写山楼では講義中、本物の文晁印を誰もが利用できる状況にあり、自作を文晁作品だと偽って売り、糊口をしのぐ弟子が相当数いた。