Where can I buy a cheap low-cost compatible cartridge Xerox

Good morning all !
In the worst possible time over the cartridge. Money for a new low , and at the gas station , too , and urgently need to print out two letters.
Where can I buy a compatible cartridge Xerox Phaser 3140.
That caught my Forum : cheap ink cartridge Xerox Phaser 3140.

Maybe try to buy cheap refilling printer Xerox Phaser 3140.

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çàïðàâêà ïðèíòåðà Xerox Phaser 3140.