![]() Check User Manual to determine if your printer’s Printhead can be easily removed and replaced. The replaceable (or non-customer replaceable) PRINTHEAD will eventually fail over time with usage and age. To check the electrical state of the HP 364, 564 or 920 printhead, perform the PRINTHEAD Health Diagnostics Test procedure ( refer to Diagnostic’s pdf file at link below, refer to your printer model for specific testing instructions: ) If you have reached this point of the troubleshooting and all the previous troubleshooting steps did not work, then the printhead could be electrically damaged or at end of life* and may need to be replaced.This can be done from the printer’s control panel or software printer driver (for example, by selecting ‘Tools’ – ‘Clean Printhead’, or similar). If permissible, activate the ‘Clean Printhead’.You should observe a New PRINTHEAD alert message followed by an approx. Install ink cartridges and retest printer.You may observe a “Replace Printhead message” so you will need to cycle printer power by turning printer off and then on to clear the error. Install the printhead into the printer.Ensure printhead electrical contacts and exposed surfaces are fully dry. Using a lint-free towel, remove water from rear/bottom electrical contacts.Over a sink, run warm tap water directly into the 4 (or 5) ink ports for approximately 2 minutes – this will effectively saturate the foam ports and blow ink out/thru the nozzle plate bottom.Remove the printhead – in most cases you will need to pull up on the lever at right side of carriage assembly to unlock the printhead.Remove all ink cartridges from the printer.NOTE 1:While warm (hot) tap water is most readily available in the home, use of distilled water is suggested as it is technically safer for the printhead as it does not contain calcium or contaminants which could clog ink nozzles and/or impact the printhead’s long term performance. If the scanned image is incorrectly cropped, turn off the autocropping feature in the software and crop the scanned image manually.If, after activating the ‘Clean Printhead’ routine two (2) times in a row, along with manufacturer’s suggested printer cleaning procedures, blank pages are observed or output print quality is extremely poor (for example, you observe several missing colors in the Print Quality Diagnostic Report where otherwise all colors should normally be present with no visible streaking), then the printhead may have partially dried out and a warm/hot water flush of the printhead may be necessary to help recover the ink system. With this setting, the text layout and formatting are retained. If the document to be scanned has a complex layout, select framed text as the scan document setting in the software. To avoid incorrect or missing scanned text, make sure the brightness is set appropriately in the software. To make a large copy of a small original, scan the original into the computer, resize the image in the scanning software, and then print a copy of the enlarged image. Open the Printer Software to select Scanner Actions and then select Manage Scan to Computer. ![]() If you have a wireless connection and you have confirmed that the connection is working, you will need to enable wireless scanning in the software to scan from the printer display. Load your original, print side down, on the right front corner of the glass. ![]() The scanner may interpret anything it detects on the glass as part of the image. Keep the glass and the back of the lid clean. Use the following tips to copy and scan successfully: Learn more about using the automatic document feeder to scan your documents. Some screens that appear in the animation may not reflect your product. Load second page on the glass and touch OK. Use the touch screen to set the number of copies. ![]()
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