HP 33 Black Ink Cartridge in Retail Packaging

• For HP DeskJet Portable, DeskJet 310, 320, 340 series, and DeskWriter 310, 320
• printers
• Works with HP Inkjet specialty papers and transparency films or plain papers
• Yields up to 595 pages per cartridge
• Only ink-jet print cartridge engineered for use in HP DeskJet portable printers

This cartridge offers the quality you expect from any other cartridge. My problem with it, which most people won''t notice till it''s too late, is that the M in its product code stands for "Mobile" which is just a fancy term for half-full. They make it "lighter" for people on the go who have their notebook printer with them. Whatever...it runs out in half the time of a regular cartridge. Do yourself a favor, go with the models that have an "A" in their model number....they really aren''t much heavierI promise you won''t notice.

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I purchased a HP Ink Cartridge which is working great. Mainly, I had trouble finding this

product until I logged on to Amazon. They made the entire process easy and delivered on

time. Thank you Amazon.

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When the cartridges are new, they work just fine with the HP mobile printer. But the seller sent me cartridges that had expired in 1998. I didn''t realize this when they arrived but I did just recently when I tried to use one. The ink had leaked out and jammed the mechanism. No amount of cleaning helped. So I''m out some $70 on worthless merchandise. Shame on the seller.

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M does not stand for "mobile". It stands for "monochrome"--the mobile printer can also print color if you purchase the correct cartridge. 51633M prints only black. My cartridges never came half-filled.

I have no problems with this cartridge when it''s spanking new. But you take your chances when you buy a cheap (i.e.