HP K550DTWN User's Guide - Page 68
Printer lights reference, Light description /Light pattern
UPC - 882780071223
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Light description /Light pattern The Power light and the Resume light blink, and one or more of the ink cartridge lights are on. Explanation and recommended action One or more of the ink cartridges have expired. CAUTION Printer services or repairs required as a result of using expired ink cartridges will not be covered under warranty. ● Replace the ink cartridge indicated. ● If you choose to use the expired ink cartridge, press and hold (Power button), and press (Resume button) three times. All lights except the Power light go off. Damage that results to the printer from using this cartridge is not covered under the warranty. The Power light is on, and one or more of the printhead lights blink. One or more of the printheads are missing. ● Install the printhead indicated, and then try to print. ● If the error persists, replace the printhead indicated. The Power light, and one or more of the printhead lights blink. One or more of the printheads are faulty or need attention. ● Ensure the printhead indicated is properly installed, and then try to print. Remove and reinsert the printhead if necessary. ● If the error persists, replace the printhead indicated. The Power light is on, and one or more of the ink cartridge lights blink. One or more of the ink cartridges are missing. ● Install the ink cartridge indicated, and then try to print. ● If the error persists, replace the ink cartridge indicated. One or more of the ink cartridges are out of ink and must be replaced before you can continue printing. ▲ Replace the ink cartridge indicated. The Power light, and one or more of the ink cartridge lights blink. One or more of the ink cartridges are faulty or need attention. ● Ensure the ink cartridge indicated is properly installed, and then try to print. ● If the error persists, replace the ink cartridge indicated. 60 Chapter 5 Printer lights reference ENWW