When you have to remove the printer driver, for example, when reinstallation of the printer driver is necessary, uninstall the driver using the following procedure.
Open the [Print & Fax] window.
Click the Apple mark and open the [Print & Fax] window from [Apple Menu] in [System Preferences].
For Mac OS X 10.7/10.8, open the [Print & Scan] window.
Select the printer name to be deleted, and then click [-].
The selected printer is deleted.
Close the [Print & Fax] (or [Print & Scan]) window.
Drag the following files, which are located in [Library] - [Printers] - [PPDs] - [Contents] - [Resources] for the installed [Macintosh HD], to the [Trash] icon.
KOI1100J.ppd
KOI1100_.ppd
Delete unnecessary files from [Library] - [Printers].
Drag the following files, which are located in [Library] - [Printers] - [GENERIC], to the [Trash] icon.
psto100C-1
100C-1.plugin
100C-1.icns
For OS X 10.5, drag 100C-1 85C-1 PS xx.pkg*, which is located in [Library] - [Receipts], to the [Trash] icon.
* xx indicates the OS version.
Drag the following files, which are located in [Macintosh
HD] - [Users] - [User Name] - [Library] - [Preferences] to the [Trash]
icon.
For Mac OS X 10.7/10.8, click Go on the Finder menu. Pressing the option key, click [Library]. Drag the following files located in [Preferences] onto the
[Trash] icon.
For 10.6/10.7/10.8
100C-1 PS Printer Driver x86_64 Preferences
For 10.5 (Intel Processor)
100C-1 PS Printer Driver x86 Preferences
For 10.5 (PowerPC)
100C-1 PS Printer Driver PPC Preferences
Depending on the driver setting, the above file may not be displayed.
[User Name] is the account name selected at the time of login.
Restart the computer.
This completes removing the printer driver.