The R1800-R1900 pair are better suited to color printing on glossy surface papers as they have a gloss optimizer ink. The inkset is related to the K3 inkset in that it is pigment based and uses similar colors, but it doesn't have as much in the grayscale inks department.

The R2400-R2880 pair (and all the higher end R3800, R4800, etc) are more proficient at printing B&W work as they have the K3 inkset, which essentially has a full quadtone set built in and extra bits in the driver for more B&W printing control if you choose to print outside of a color managed print workflow (fine for B&W work).

The autoswitching feature means that the head has a spare slot for the two black inks and can switch between them without having to do a a full purge cycle, which consumes some ink from all cartridges. How much it saves I can only conjecture about. I hardly ever switch to Photo Black as I print almost exclusively on matte surface papers, so it makes little difference to my printing costs.

Godfrey

On Dec 18, 2008, at 9:52 AM, Igor Roshchin wrote:

I see that R2400 got replaced by R2880, and I see that Christine
has been very happy with it.

Does anybody have R1900?
What is the difference from R2880?

I see that they are using different types of inks, but I am not
sure which one is better. If I understand corectly, R1900
is using one of the UltraChrome (High Gloss?) ink, -
I am not sure if it is somehow related to the inks used in 3800
(UltraChrome K3)

Also, I see that R1900 features
# Auto-switching Photo and Matte Black Ink
- the feature that 3800 also has.

I see that Godfrey had mentioned that every time you switch toner
manually you loose 5-6% of ink.
Is this the case with the auto-switching?


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