How can I stop published printers being

Start the Active Directory Users and Computers MMC snap-in (Start - Programs - Administrative Tools - Active Directory Users and Computers)

Right click on the domain and select Properties

Select the Group Policy tab

Select the 'Default Domain Policy' object and click Edit

Expand Computer Configuration - Administrative Templates - Printers

Double click 'Prune printers that are not automatically republished'

Select Disable and click Apply then OK

Close the Group Policy and the MMC snap-in