HP Deskjet 320 Solutions Guide - Page 90

Print Cartridge Tips • Do not use print cartridges after the expiration date. See "Identifying the Print Cartridge Expiration Date" in chapter 6. • Keep the print cartridges sealed in the packaging container until ready for use. The print cartridges have a longer life sealed in this container than in the printer. • Keep opened print cartridges in the printer or in the print cartridge storage container. • Turn off the printer by pressing the Power button rather than unplugging the power adapter or rapid recharger. Turning the printer off with the Power button caps the print cartridge, extending the life of the print cartridge. • Do not allow the print cartridge contacts and nozzles to touch any surface or object, including your fingers. Oil and dust can cause print quality problems. • If printouts are missing dots, read "Printout Missing Rows of Dots" in chapter 6. • Print cartridges left out of the printer may experience a crusting of dried ink on the print cartridge nozzles. Clean the dried ink off of the nozzles before installing the print cartridge in the printer. See "Removing Crusted Ink from the Print Cartridge Nozzles" in chapter 6. • Store print cartridges at room temperature. Caution The ink in the print cartridges has been carefully formulated by Hewlett-Packard to ensure superior print quality and compatibility with the printer. Damage to the printer resulting from modifying the print cartridge is not the responsibility of Hewlett-Packard. Hewlett-Packard does not support refilling print cartridges. Hewlett-Packard cannot guarantee the print quality from refilled print cartridges. Printer damage caused by refilling print cartridges is not covered by the Hewlett-Packard warranty or customer service agreements. Maintaining the Printer The interior and exterior of the printer should be examined for smudges, dust, etc. Clean the exterior with a soft cloth moistened with mild detergent and water. Open the access door and examine the interior areas of the printer. Any accumulation of paper or lint should be carefully removed by brushing the loose material onto a cloth, or by using a small computer vacuum cleaner. If the platen or pinch plate needs to be cleaned, follow the instructions in the next section. Caution Clean the printer with water only. Platen cleaners or alcohol may damage the printer. 3-34 Operation and Usage