Cal,
I have a 3880 and am now using Jon Cone's color inks. I am not familiar with the K-7 gloss overcoat for color prints you mentioned. Can you elaborate?
PTP,
I learned about this from the Piezography Forum.
I'm a B&W printer. My old K-7 process uses 7 shades of black to print my B&W images. For glossy printing a cover layer of "Gloss Overcoat" is required, so glossy printing is a two step process: first printing is 7 shades of black; then after drying a layer of "Gloss Overcoat" is printed.
The effect is that the contrast fully emerges and so does the shadow detail. Any gloss differential or bronzing disappears. There is an additional benefit is that the "GO" protects the pigment underneath and makes the prints to handle a lot of handling.
At NYC Meet-Ups I spit on one of my prints and squeege the wet print with my hand as a display of the added durability. Also there have been accidents where I have actually drooled on my prints inadvertantly. LOL.
So on the Piezography Forums some color printers rave about Gloss Overcoating their color prints for added detail, added saturation, added contrast, and added durability.
At Piezography they actually use a printer loaded with "GO" in all channels for fast and easy application. They also can remap a printer with a dead nozzle for this purpose.
In real life in my 3880 I got "Pizza Wheels" which were only apparent in areas laden with blacks or vast amounts of shadows as an artifact. Basically the paper transport leaves/creates an artifact. I got a workaround from Walter Blackwell that uses the rear loading, but disables the pin wheels that creates the Pizza Wheels. realize that this artifact is because of heavy ink load, and with Piezography this is where the expanded tone comes from.
If you like PM me. When I load my 7800 with Enhanced K-7 I could apply a coat of "GO" over one of your color prints. Soon I will be loading the printer I affectionately named "The Jersey Barrier" because of its size. Realize that I have a 3880 and a 7800 in a one bedroom luxury apartment in Madhattan. and that my gal is a famous Fashion Blogger. I don't know which is is more clutter, her clothes and shoes, or my printing stuff.
So anyways I have a client waiting for me to print 20x30's on 24x36. Doing unidirectional at 2880 takes about 44 minutes for just one pass. I like to wait a full day for the 7 shades of black to fully cure before printing the gloss overcoat. That too takes 44 minutes. Like developing film my limitations is drying space. For now I'll be loading Piezography Pro to exploit that one pass printing.
I'm seriously thinking of setting up my 3880 like yours with Jon Cone Color archival pigment inks.
Then again I want/need a 9800 or 9880 to really go big. Some files of the right subject with great lighting and perfect exposure really will hold up to a full 24x36 and you can still nose up into the print. The 9800 or 9880 will be for Enhanced K-7 HD.
BTW I think JC is coming up with the curves for Cone Color to use the gloss HD black. You should look into this. In my printing I'm finding that I use a lot less black ink because the black is so black. Also the added stop of contrast really opens up the prints, and there is an illusion of higher resolution due to the more define contrast from the blacker black.
As always I save where I can. I bulk up and take advantage of twice a year sales at Piezography.
Cal