Print Head, Screening Technology And InksetThe 7890's TFP (Thin Film Piezo) MicroPiezo print head features eight, 360-nozzles producing precise 3.5-picoliter droplets for faster print times, as well as optimal image quality. The low-vibration meniscus control within each nozzle provides optimal dot shape and placement.
The advanced AccuPhoto HD screening algorithm produces excellent color and clarity, and in combination with the inkset, is why prints from the 7890 and the 9890, its 44-inch version, are found in leading galleries and museums. While screening algorithms and Thin Film Piezo explain the technical attributes, many photographers comment that they see smooth blends of color and photographic-looking tonal transitions. In short, it's no longer an inkjet print, but a photograph.
Epson's UltraChrome K3 with Vivid Magenta pigment-based inkset uses eight colors: cyan, vivid magenta, yellow, light cyan, vivid light magenta, light black, light light black, and either photo black or matte black (with automatic switching for the paper being used).
Media And MoreThe 7890 can print on cut sheets and rolls up to 24 inches wide. Minimum sheet size is 8.5x11 inches. The individual ink cartridges are available in 150ml, 350ml and 700ml fill volumes. Depending upon your individual needs, you can use different size cartridges simultaneously.
Speed may not be the most important factor in your choice of a printer, but it's nice to know it's there if you need it. In a recent side-by-side comparison versus other manufacturers' printers, in the highest-quality modes, Epson was the fastest.
A simple button layout and high-resolution, 2.5-inch color LCD make it easy to operate and monitor the printer. Automatic nozzle verification and cleaning, plus auto print-head alignment, keep things running smoothly. For 24-inch-wide prints, the 7890 is the perfect marriage of quality and affordability.
Inkset: Epson UltraChrome K3 with Vivid Magenta
Maximum Paper Size: 24 inches wide (cut sheets or rolls)
Smallest Droplet Size: 3.5 picoliters
Dimensions: 54x27x48 inches
Weight: 187 pounds
List Price: $2,995