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Hi, The error 9-357 normally refers to a toner issue. This normally refers to a color/Black toner problem. Probably there is low toner sensor defect. Check for the ink in the cartridges as well but before that try to vacuum and clean the toner dispenser. You must vacuum whole path which is used to transport the toner to developer unit.
Black toner problem.Probably You have low toner sensor defect.
But try first to vacuum and clean black toner dispenser.You must vacuum whole path wich is used to transport black toner to developer unit.Then if printing B/W print only, you must print 10 full color sheets every 100 copies.