1. I have tried several methods but none of them worked.
2. I turned off the power of MF4150, tried these steps in the folder named "PICTURES" (for every GROUP or USER NAMES), then turned on the MF4150, now it works. [except the auto-feeder feature doesn't work all the time]
2. I turned off the power of MF4150, tried these steps in the folder named "PICTURES" (for every GROUP or USER NAMES), then turned on the MF4150, now it works. [except the auto-feeder feature doesn't work all the time]