Simply ignore the low ink warning and continue printing. HP ENVY 4513 4520 4521 4522 4523 4524 4525 4526 4527 4528 Inkjet Printer. If it has no sponge, it is not an XL and you have been mis sold. Compatible with HP DeskJet 1110 2130 2132 2133 2134 3630 3632 3633 3634 3636 3637 3638 3639 Inkjet Printer.
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