jaebilder -
As far as inkjet printers go, I've had a ton of success using the HP Officejet 8600 with a wide variety of our different materials - the Weatherproof White Gloss included. It's in the same Officejet family as your current printer, but uses an entirely different inkjet set of inkjet cartridges (HP 950/951 vs. HP 62). When using the correct material type settings, this printer is capable of very vivid and durable prints, and seems to do well printing solid black.
Exact color duplication might still be somewhat of an issue due to the glossy inkjet topcoat, but in my experience the colors printed with the HP Officejet 8600 remain relatively true and accurate even on high gloss surfaces.
If you are in the market for a new printer you may also want to consider purchasing a laser printer model. The HP LaserJet Pro 200 is an affordable option and has tested well with our selection of materials. Laser printing generally results in more durable printing results and better reproduction of colors due to the fact that the toner is being fused to the surface of the material, rather than being absorbed into the topcoat.
Unfortunately, we don't offer a high gloss weatherproof material for use in laser printers, but our Weatherproof Polyester material does feature an attractive satin finish that has an almost semi-gloss appearance. You can view more information regarding our Weatherproof Polyester Laser material at the link below:
http://www.onlinelabels....lyester_laser_labels.htmIf you'd like to try samples of this material before placing an order, you can enter a request at the following link:
http://www.onlinelabels..../SamplesSelectItems.aspxI hope that you find this information useful. If you should require any additional details please just let me know. I'll be happy to help in any way that I can!