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Originally Posted by
Polar01
No George that is not per colour, that is the total amount of ink used to print a 12" x 18". The printer had a feature where it stored the data from the last 10 images. It would give you the total area printed and the total amount of ink used to print that area. Yes I know that coated stock uses less ink that rag stock which sucks up ink. Now this was only an average of overall ink usage, it gets you into not just the ballpark but the infield so to speak.
I do not know George if you know this, however the P5000 like the 4900 are both high end printers that have 11 ink karts of ink of which are 200ml each, of which 10 karts are in use at any one time. These printers have both a matt black and a photo black of which only one is used at a time.
Yes a lot of low end printer will usually state the average number of pages that are a max size 8.5"x11", printed black only based on the average coverage of a typed page. I found over 20 years as an estimator in the print industry that it was safe to assume that the coverage of type (words) on any page was around 18% of the total page area, with that being safe to base the cost of ink usage on.
As for coverage in using low end printer of C,Y,M,K or high end printers C,CL,Y,M,ML,O,G,LLK,LK,PK, or MK if you print 24"x36" print area than coverage is 100%.
Cheers: Allan