A stack of 35 pages is a tenth of the black cartridge
The feeder takes 35 sheets, the black cartridge holds about 360 pages. Copying a full stack, in a single action, therefore uses close to a tenth of the cartridge — and the operation takes less than five minutes.
That is what separates this machine from a DeskJet without a feeder, where the ink goes page by page, at the speed of the hand laying sheets on the glass. Here, ten stack copies in the month are enough to empty a black. If you copy a lot, it is that operation you should be counting, not the prints.
652 and 653: same yields, different part numbers
The trap is real and it costs an order. The 652 and the 653 quote exactly the same figures — 360 pages in black, 200 in tri-colour — but they are two distinct part numbers, intended for different machines. Remembering "360 pages" is therefore not enough: it is the number that has to be noted, and it alone.
The useful habit is to read the part number printed on the cartridge in place as you take it out, rather than relying on how alike two entry-level DeskJet machines look.
25 sheets at the output, 35 in the feeder
The detail shows on the first big job: the output bin holds 25 sheets while the feeder takes 35. Copying a full stack therefore overflows the output before the end. That is not a fault, and it has no effect on the ink — simply a reason to stay within reach on long runs.
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