To save the new changes to the printer's internal memory chips, you must cycle the power correctly:
Which (e.g., 5B00, 1700) is currently on your printer screen? Do you already have a Service Tool version downloaded? Canon Mb2140 Service Tool
The selected function is not supported by this printer model. Select "Main" instead of "Platen" for the absorber type. The software cannot communicate with the printer hardware. To save the new changes to the printer's
The EEPROM mainboard has become corrupt or permanently locked. This usually happens if a user repeatedly pushes arbitrary button combinations or uses corrupted/cracked reset tools. restart the printer
The printer is not in Service Mode or not recognized. Unplug the USB, restart the printer, and re-enter Service Mode.