Why is it that my HP 6500 all -in -one scanner uses up all my colour ink when I am not printing, clean head, restart program, change ink cartridges and it still uses colour ink w/o printing .
That is what I thought when I read it myself. Printers are all so cheap, its the ink that costs. All in ones get you same way even if you don't print anything.
Might be related to start up procedures printer goes through - https://h30434.www3.hp.com/t5/Inkjet-Printing/hp-officejet-6500a-won-t-scan-to-computer-without-ink/td-p/4138384
So every time, I scan a doc, it goes through a warm up or start up and waste ink on nothing.
That is what I thought when I read it myself. Printers are all so cheap, its the ink that costs. All in ones get you same way even if you don't print anything.