The printFile and printFiles interfaces cannot execute properly

[isvttr]

Environment: Megachip Kirin V10 on Virtual Machine code： import cups conn = cups..Connection() conn.printFile('printName','/home/test/desktop/test.png','test_job',{}) conn.printFiles('printName',['/home/test/desktop/test.png',],'test_job',{})

cups.IPPError:(1280,'No such file or directory') No matter which interface it is, 1280 exception messages will appear. The path is correct, pycups version is 2.0.4. Could you please tell me what caused this and how to solve it