When you have to remove the printer driver, for example, when reinstallation of the printer driver is necessary, remove the driver using the following procedure.
Open [System Preferences] in the Apple menu, then click the [Print & Fax] icon.
In Mac OS X 10.7/10.8, click the [Print & Scan] icon. In Mac OS X 10.9, click the [Printers & Scanners] icon.
In Mac OS X 10.2/10.3, select [Macintosh HD] (system hard disk) - [Applications] - [Utilities], then double-click [Printer Setup Utility] or [Print Center] to open it.
Select the printer you want to delete, and then click [-] (or [Delete]).
The selected printer is deleted.
Close the screen.
From [Library] - [Printers] - [PPDs] - [Contents] - [Resources] on [Macintosh HD] where the driver was installed (in Mac OS X 10.5/10.6/10.7/10.8/10.9, from [Resources] and in Mac OS X 10.2/10.3/10.4, from [Resources] - [en.lproj] and [de.lproj]/[es.lproj]/[fr.lproj]/[it.lproj]/[ja.lproj]/[ko.lproj]/[zh_CN.lproj]/[zh_TW.lproj]), drag the following files to the [Trash] icon.
[KONICAMINOLTAC754e.gz]
[KONICAMINOLTAC654e.gz]
Delete unnecessary files from [Library] - [Printers].
Drag the [C754] folder, which is located in [Library] - [Printers] - [KONICAMINOLTA], to the [Trash] icon.
In addition, if you are using Mac OS X 10.2, drag all the [KONICA MINOLTA C754] folders, which are located in [Library] - [Printers] - [PPDPlugins], to the [Trash] icon.
In Mac OS X 10.2/10.3/10.4/10.5, drag [bizhub C754_xxx.pkg], which is located in [Library] - [Recipients], to the [Trash] icon.
Restart the computer.
This completes the deletion process of the printer driver.