Hast du dir das PDF mal zu gründlich Gemüte geführt? Was da zum 280er ausgeführt wird, ist auch für den 290er zutreffend. Und wozu die (bestimmt überholte) CD? Der aktuellste Treiber ist MB260 MB280 MB290 PCL6 printer driver for Mac OS X - Version 1.0.3 - 1.0.3
Download:
http://www.oki.de/support/printer/p...?prodid=tcm:90-3996&driverid=tcm:90-101243-16
Limitations: *A, *B, *C, *F, see section 6
*A: Use Snow Leopard compatibility fix
*B: Some PostScript driver options do not display in 64-bit applications
*C: English PPD is auto-selected
*F: Rosetta required for installer
section 6
MB260, MB270, MB280
1. These models are not supported on Snow Leopard. Running the Snow Leopard compatibility
fix should allow you to use your device as an interim solution, but we cannot guarantee the
proper operation of these models under Snow Leopard at the moment.
2. When connecting to the device in Print & Fax Preferences, Snow Leopard might display a
message saying “The selected printer software may be available from Apple. Click Add to
download it and add this printer”. This message is incorrect as the software is not available
from Apple. Use the software provided by Oki instead.
3. Snow Leopard may not automatically select the correct printer driver. To choose the correct
driver, choose “Select Printer Software” and in the search box type “Laser Pro LL2”. Choose
“Laser Pro LL2” if you have installed the Raster driver, choose “Laser Pro LL2 PCL” if you have
installed the PCL6 driver.
Quelle:OKI
Mein Rat: Verkaufen und ein mit 10.6 voll kompatibles Ersatzgerät anschaffen.