Switching Media Types Display Show/Hide (Mac OS X)
In the Edit Media Types dialog box, click the Update
The Confirm Update dialog box is displayed.
Configure Update Target and click the Execute button.
Communication with the printer begins.
Click the OK button.
You should normally select Update the printer control panel and printer driver.
When setting a data to the printer that differs from the data to be updated, the selected media information file is
updated. When you would like to remain the data that is set to the printer, click the Cancel button.
Do not attempt to print or turn the printer off while the program is communicating with the printer.