how to print with RT-AC66u?

Howdy Folks

I was wondering if you anyone could help me with this issue.

We have an ASUS RT-AC66u router that has a HP Photosmart C4795 printer connected to it via an USP connection.

The PC that is connected to the router can print with this connection but my iMac cannot.

I have tried the instruction from http://support.asus.com/Search/KDetail.aspx?SLanguage=en&no=709CD7A4-CFFE-D939-7 17D-D7CFD82C44B1&t=2 and it did not work.

I have tried to look at other sites to see if there are different options to set-up the connection for the printer and I seem to always run into this advice:

1) Go to printers

2) Press '+'

3) Select IP

4) Enter info as below

Address: 192.168.1.1

Protocol: LPD

Queue: LPRServer

Name: *I just left as it was, the address. You could probably change it if you wish*

Location: *Again can probably set as you like, i left it blank*

Use: *Select your printer driver. I had to manually select the gutenprint version of the driver for my print for it to work as Post Script version would not work.*

I do not know if my mac can see the printer but when I try to send a job to print, it appears that the job just hangs in the queue.

If I directly connect the printer to my mac then there is not issues printing.

Can anyone provide some advise on how I can successfully connect this printer to my mac. I would greatly appreciate it.

I am running OS X 10.10 if that makes a difference.