HP 343 Colour (C8766E)



COMPATIBLE WITH


  • DeskJet 460c
  • DeskJet 460cb
  • DeskJet 460wbt
  • DeskJet 5740
  • DeskJet 5743
  • DeskJet 5745
  • DeskJet 5748
  • DeskJet 5940
  • DeskJet 6540
  • DeskJet 6540d
  • DeskJet 6543
  • DeskJet 6548
  • DeskJet 6620
  • DeskJet 6830v
  • DeskJet 6840
  • DeskJet 6843
  • DeskJet 6848
  • DeskJet 6940
  • DeskJet 6980
  • DeskJet 9800
  • DeskJet 9800d
  • DeskJet D4145
  • DeskJet D4155
  • DeskJet D4160
  • DeskJet D4163
  • DeskJet D4168
  • OfficeJet 100 Mobile
  • OfficeJet 150 Mobile
  • OfficeJet 6205
  • OfficeJet 6210
  • OfficeJet 6215
  • OfficeJet 6310
  • OfficeJet 6313
  • OfficeJet 6315
  • OfficeJet 7210
  • OfficeJet 7310
  • OfficeJet 7310xi
  • OfficeJet 7410
  • OfficeJet 7410xi
  • OfficeJet H470
  • OfficeJet H470b
  • OfficeJet H470wbt
  • OfficeJet Pro K7100
  • OfficeJet Pro K7103
  • OfficeJet Pro K7108
  • PhotoSmart 2575
  • PhotoSmart 2610
  • PhotoSmart 2613
  • PhotoSmart 2710
  • PhotoSmart 2713
  • PhotoSmart 325
  • PhotoSmart 335
  • PhotoSmart 375
  • PhotoSmart 385
  • PhotoSmart 422
  • PhotoSmart 425
  • PhotoSmart 428
  • PhotoSmart 475
  • PhotoSmart 7850
  • PhotoSmart 8050
  • PhotoSmart 8150
  • PhotoSmart 8450
  • PhotoSmart 8450gp
  • PhotoSmart 8750
  • PhotoSmart 8750gp
  • PhotoSmart C3140
  • PhotoSmart C3150
  • PhotoSmart C3170
  • PhotoSmart C3180
  • PhotoSmart C3190
  • PhotoSmart C4140
  • PhotoSmart C4150
  • PhotoSmart C4160
  • PhotoSmart C4170
  • PhotoSmart C4173
  • PhotoSmart C4180
  • PhotoSmart C4183
  • PhotoSmart C4190
  • PhotoSmart C4193
  • PhotoSmart C4194
  • PhotoSmart D5145
  • PhotoSmart D5155
  • PhotoSmart D5160
  • PhotoSmart Pro B8350
  • PSC 1507
  • PSC 1510
  • PSC 1510s
  • PSC 1513
  • PSC 1513s
  • PSC 1610
  • PSC 1613
  • PSC 2350
  • PSC 2353
  • PSC 2355
  • PSC 2355p
  • PSC 2355v
  • PSC 2355xi

Troubleshooting - Click each question for details


Your cartridge is not actually empty. It has been remanufactured and the ink levels cannot be reset. Continue printing as normal until all of the ink is used.

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The working parts of the printer and cartridge are delicate and need to be in the correct condition to function correctly. Sometimes a little dirt or ink can prevent the cartridge from working. Remove the cartridge from the printer and gently clean the gold coloured electrical contacts on the cartridge and the contacts on your printer with some moist tissue. Reinstall the cartridge and attempt to print again.

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There may be air trapped in your cartridge’s printhead. Please run a cleaning cycle according to your printer’s instructions and try to print again.

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There may be a small blockage in your cartridge’s printhead. Remove the cartridge and try wiping the printhead from back to front a few times with a moist tissue. You should soon see a black line or a three colour line on the tissue. Reinstall the cartridge and attempt to print again.

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First check to make sure that you have removed the clip and/or tape from the cartridge before attempting installation. If you have, then make sure that your printer is listed in the ‘Compatible With’ section.

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Printer manufacturers often use the roll out of their printer firmware updates to prevent you from choosing the origin and type of supplies you use in your printer. This has been done is ways such as blocking the use of remanufactured/recycled cartridges entirely, applying a 'cartridge lock' system that locks a cartridge's usage to a printer and introducing a new 'generation' of the same cartridge model to stop older, remanufactured cartridges being re-used.

Most printer manufacturers will prefer you to set your printer to automatically download and install their updates for this very reason. We suggest that you disable the automatic update option to allow you to continue to use remanufactured cartridges and also to recycle your cartridge after it has been used. By allowing your printer to update the firmware automatically you are risking being locked into only using the more expensive and less environmentally friendly original branded cartridges.

So we highly recommend switching off your printer's firmware automatic updates and dismissing future messages asking you to update your printer. These steps are a general guide to how to stop the updates, but please note that they will vary slightly depending on your exact printer model.

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This is true for both original and remanufactured HP cartridges. The page yield displayed by HP is based on a 5% page coverage life test. That is, if you only fill 5% of your page, your cartridge will print for the given number of pages. If you print photos, graphics or even a full page of text, you will be using more than a 5% page coverage. So with normal everyday printing, the page yield listed by HP is unlikely to be the same page yield that you will get out of your cartridge.

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