Hi @AEC_Cadd,
For the TDS 400, is your firmware fully updated? Please tell me your driver version. It appears that last driver from Oce (Canon) is from last June and can be found here.
There is a driver cleaning utility available here to remove old drivers.
Regarding the HP printers, you should be able to add the universal driver and point to the same devices without affecting the existing driver installations. Just treat the installation of this driver as a new printer.
Please select the Accept as Solution button if my post solves your issue or answers your question.
John Vellek
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