device.serial_number.option_board_date
device.serial_number.option_board_date

device.serial_number.option_board_date

Returns the date the option board was made.
This command is functional only on printers that had their option board manufacturing date programmed when they were created. Older printers that do not have the option board creation date programmed will return a
"?"
or empty string.

Getvar

To return the date the option board was made:
! U1 getvar "device.serial_number.option_board_date"
Result
The date in mm/dd/yyyy format.