PIXMA TR4270 Functional Earth connection

[Laura99]

If my printer is connected to my laptop via the USB printer cable, do I still need to use the functional earth connection cable?  I have no spare outlets to use.  

[Patrick]

Hi Laura99,

In regards to using a functional earthing connection cable, If the product is connected to a computer by USB cable, and the computer is connected using a 3-prong power cord (which is grounded), a functional earthing connection cable is not necessary, since the product is connected to the ground through the USB cable.

More information regarding this can be viewed in this Product Advisory published by Canon:

https://canoncanada.custhelp.com/app/answers/answer_view/a_id/1034977/~/product-advisory%3A-canon-in...

[normadel]

Do you mean TR4720?  I don't see a TR4270 when I google it.

According to this bulletin from Canon Canada, the functional earth connection is only an issue when using the printer's fax function.

https://canoncanada.custhelp.com/app/answers/answer_view/a_id/1034977/~/product-advisory%3A-canon-in...

[Laura99]

Yes, I meant the 4720.  Thanks for the reply.