

To further troubleshoot your printer please visit: 3.

#HP PRINTER 940C TROUBLESHOOTING SERIES#
Deskjet 900c, 916c, 920c, 940, 940c series printers (HP 15, 78 ink cartridges) HP 15/78 Ink Refilling Services & Additional Cautions: To further troubleshoot your printer please visit: 1. To further troubleshoot your printer please visit: Deskjet 700 series printers (HP 23, 45 Ink Cartridges) Deskjet 710c and 720c series printers (HP 23, 45 ink cartridges) HP 23/45 Ink Refilling Services & Additional Cautions: Running a self-test: 1. Running a diagnostic test: Regular Test: 1. Press and hold down the RESUME button until the printer starts printing. To further troubleshoot your printer please visit: 2. The Extended Self-Test (“Tap 10”) prints. Press and hold the Power button, and then press the Cancel button once. To further troubleshoot your printer please visit: HP Deskjet Printers Print the HP Self-Test Report (older HP printer models) – click here for instructions/sample prints: Deskjet Printers (most models) Tap 10 Diagnostic Test (Extended Self-Test): 1. To further troubleshoot your printer please visit: HP Inkjet Printer Diagnostic Tests The internal HP printer self-tests, including ‘Tap 10’ test, can be used to verify cartridge nozzle performance and that the printer's internal firmware is functioning properly.
