If your HP B210a has a clogged printhead, this guide can be used to try and clear the clog.
'''IMPORTANT:''' While there are no guarantees this will fix the problem 100% of the time, this will fix most printers. The printhead must also be recoverable for this to work (Ex: No predisposed issues that render it beyond repair). '''''If this does not work, it's generally better to replace the printer; not the printhead.'''''
'''''IMPORTANT: This does not fix every printer. If your printer has predisposed hardware problems, this will not work.''''' '''''If the problem persists, your printer has a different problem or a bad printhead. It is typically more cost efficient to replace the printer as an entire unit if this happens.'''''
=== Guide Notes ===
* '''''WARNING: THIS PROCEDURE MAY DAMAGE PRINTHEADS WITH PREDISPOSED DAMAGE.'''''
** If the printhead has failed, it likely had predisposed damage.
* This guide is primarily made for the HP Photosmart Plus B210a, it is universal among all HP 564 printers.
** '''Models with non-removable printheads (Ex: Photosmart 6520) require special attention to preserve the calibration. These models may not work again if this is lost and SETUP cartridges are expected.'''
** If I have not tested your specific printer with the bypass, I cannot guarantee calibration preservation. It generally doesn't hurt to try (removable only), but I cannot guarantee it will work without testing.