07-03-2014 11:19 PM
Normally you can get around 120 pages for Black and around 100 pages for tri-color from HP 662 ink cartridges with 5% coverage. Now you print the whole A4 that means 20 times of 5%. Make a simple math you can get around 10 - 12 pages. You get 15 pages, that's a good result. Probably you printed in one go. In short this is very normal.
ps The following page is for XL ink cartridges
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