The location that I have heard the best reviews of are the Levi brothers in Texas.

Excellent work, reasonable prices and they will provide an estimate for around $35 (IIRC) which is applied to the repair if you want to go ahead with it.

Printers, like most electronic equipment, tend to have most of the work in finding and defining the problem.... the actual repair is the "next step" and usually not the big part of the costs unless you are dealing with expensive parts.

You almost have to fix it to find out what the problem is.