Printer naming convention

Hi, I'm reviewing my printer naming convention and I'd like to get some suggestions, especially if you manage a large pool of printers in a multi-site organisation.

Number of print queues in each site range from 5 to 300.  We usually make 1 color queue and 1 B&W queue for each printer. We sometimes need to create a PS and PCL queue for compatibility reasons.

My actual naming convention goes like this :

4 letter Site Code - Department - PrinterBrandCode Model and Driver type - Color/BW

WXYZ  Promotions  HP4600 PS  Black and White

The problems with this naming convention are :
When the printers change department, the queue name has to be changed.
  - The solution to this seems to be to remove the physical location from the queue name but:
  Department name helps differentiate multiple identical model printer in a single site. It's epecially important for big sites that can have 10 HP4600 for example.
  Makes it easier for user to determine where they are physically printing
 
The names can get rather long and we had 1 instance where printing failed in a legacy app.
  - Again the solutions seems rather simple, abbreviate more and remove some information from the queue name.

So basically, if anyone could share their experience with printer naming convention I'd appreciate it.

Thanks.