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Cambiamenti ad HP Photosmart Plus B210a Printhead Cleaning (Gentle) Introduzione

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Introduction
Is your HP Photosmart C309g's printhead clogged, producing streaky output or not printing a certain color, even with new ink cartridges? This guide will show you how to unclog the printhead on this printer.
The cleaning steps will work with other printers, but the printhead removal steps and the steps to bypass the printhead initialization are tied to this model and similarly aged 564/920 printers-if you use a HP printer that doesn't use the 564/920 ink cartridges or a different brand printer altogether, read the manual or find a online tutorial to find out how to remove the printhead first. The method for printhead removal should be the same on newer 564 printers, but double check to be sure. The only thing to note is older cartridges will not work on web connected printers-you '''must''' use the updated cartridges since the programming on the new chips is different. I suspect you can install compatible chips or transfer the 564SETUP chips, but with this approach, you will void the warranty if the printer craps out. Chip transfer is extremely risky, since the likelihood of busting the chip is very high on the new cartridges if you have never done it, and you should just tape the new chip over the old one and use the old one as a reference, to make placement easier.
HP no longer makes printers with the 920 print cartridge, but this guide may be useful to people with these printers who have them, but don't assume my bypass will work. Also, as I am the author and wrote this back in 2010 and just got around to fixing this guide up '''I do not have plans to source out a HP 920 printer intentionally.''' If you want to write a guide for the 920 printers and beat me to getting one, feel free to use the printhead removal instructions, since I know these printers to be the same, but don't use these pictures(or bypass) since this is not a HP 920 printer. The iFixit community will have to find a bypass that works, but I will be glad to help if you want :-). If you want to experiment with the HP 564 bypass, it's at your own risk(though I kind of expect it to work.)
You can also try and bypass the initialization of the printhead on non-HP printers and other HP printers, but I will not guarantee the outcome for these printers-I only guarantee this method on the c309g and similarly aged printers with 564/920 cartridges since I know it to work on printers from this era for sure-HP's "web connected" printers may have protections in place to prevent this, even if bypassed-you can try, but it may not work since HP updates the firmware on these printers and requires the firmware updates to use the web apps. '''If the ink purge bypass used here has to beis not done EXACTLY as written, or it will not work!'''. I changed everything about this guide since this is originally from 2010 and things have changed a '''lot''' in 4 years, and originally wrote this at 15 or 16(, to put the age in perspective accordingly, though I suspect I did this at 15).
I would also like to mention as the original author this will '''not''' unclog every case of clogged printheads-if this doesn't work and the ink is confirmed good the printhead is damaged and you will need to replace the printhead. You can use the printhead removal steps to replace your printhead.