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Introduction |
| This guide will teach you how to clean a dirty or clogged printhead on common HP and Canon inkjets.[br] | ***NOTE: These steps do not apply to Epson printers as the design and ink formulation do not allow this method to work and the. The ink typeformat (ET- bulk ink tank or cartridge base) does not change this.*** | | | * ***IMPORTANT: ''This does not fix every printer. These steps will not work on failed hardware!''*** | ** ***''If the problem persists, it ISis often due to a hardware problem with the printhead in many cases. On the model I used here (HP B210a), I am noticingnoticed that it is more often than not, it is not caused by a clogged head:failed printhead. it is commonly becoming an HW failure with theseThis has become more and more common for a lot of older printers like this compared to how often than it was at the timehardware when I initially published this guide; back then. At that time, the issue was due to clogsgenerally clog-related and ink on the contacts which is recoverable. Keeprecoverable; keep this risk in mind if using these steps on an older printer. I amas a potential issue, not saying this to discourage you from trying; rather, I am setting expectations based on experience from the source guide. This was duplicated from and altered from the HP B210a version of this guideattempt. Do not expect repairs to be economical when it's a hardware fault, as inkjets are "loss leaders" to the literal extreme of using big brotherBig Brother ink DRM to make sureensure you use OEM ink.''*** | | Guide Notes | | * ***WARNING: ''THIS PROCEDURE MAY DAMAGE PRINTHEADS"KILL" A PRINTER WITH EXISTING DEFECTS A HARDWARE-LEVEL ISSUE—BEYOND REPAIR! Use caution if you suspectan HW a possible HARDWARE issu that could be made worse; write the printere! Write off these "risky" printers mentally and expect to replace them iftou use these steps if it is older and may be damaged permanently. This is especially common with older printers you kill them.''*** | | * ***The printhead removal steps were written around the HP B210a and similarly designed printers (564/920 removable). If yours differs, you may need to find a different guide to remove the printhead. Models like the HP Photosmart 6520 require special precautions as the head is permanently installed with springs and requires SETUP ink if disturbed and lost.*** | | * ***HP ONLY: ''Non-removable printhead models (E.g., Photosmart 6520, 564 ink tanks) require special attention to preserve the calibration as SETUP ink is required. On printers with this problem, try pressing "?" seven times to allow retail trade ink to be used if you lose the calibration. This is not guaranteed to work, but it is known to work on some models with this problem.''*** | * ***''IMPORTANT HP ONLY NOTE: If SETUP cartridges are required for your model, it is critical to preserve the calibration; these may not survive a lost calibration unless you can disable the trade ink block by pressing the "?" button ~seven times. This will let you bypass itworks on most permanent headsome of these models with the 564/920 carts, but it may not work on all modelsof them.''*** | | ** ***''If I have not tested your printer, I cannot guarantee the calibration preservation procedure will work. No printers will be tested for the trade ink block; use at your own risk.''*** | | === HP ONLY: Tested models for printhead setup bypass === | | * Photosmart C6380 | | * Photosmart Premium C309g | | * Photosmart Plus B209a | | * Photosmart Plus B210a | | * ***Note: This procedure should work on MOST of these, but getting it wrong nukes the stored alignment (and you will need new ink). Pay close attention unless you can buy a set of ink if you miss it.*** |
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