How repeatedly do you adapt cartrige for your printer?

How repeatedly do you adapt cartrige for your printer?

Time is not the situation. The main piece is how many page of average density one cartrige allows you to print. With my Xerox Phaser 3121 i print some about 1000 page using same cartrige.
when it runs out of ink....LOSER
when it runs out.
For injet i think around 200 page, for laser printer i can get up to 3000 page.
When it runs out. You can check the level of the ink by going into the properties of the printer.
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