HP Photosmart C4500 User Guide - Page 238
Solution 2: Clean the print cartridge contacts, CAUTION, Solution 3: Replace the print cartridge
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Troubleshooting 6. Repeat steps 1 and 2 for the tri-color print cartridge on the left side. Cause: The indicated print cartridges were installed incorrectly. If this did not solve the issue, try the next solution. Solution 2: Clean the print cartridge contacts Solution: Clean the print cartridge contacts on the print cartridges that are experiencing the problem. Make sure you have the following materials available: • Dry foam rubber swabs, lint-free cloth, or any soft material that will not come apart or leave fibers. TIP: Coffee filters are lint-free and work well for cleaning print cartridges. • Distilled, filtered, or bottled water (tap water might contain contaminants that can damage the print cartridges). CAUTION: Do not use platen cleaners or alcohol to clean the print cartridge contacts. These can damage the print cartridge or the product. For more information, see: "Clean the print cartridge contacts" on page 89 Cause: The print cartridge contacts needed to be cleaned. If this did not solve the issue, try the next solution. Solution 3: Replace the print cartridge Solution: Replace the print cartridges that are experiencing the problem. If only one of the print cartridges is experiencing the problem, you can also remove it and print using ink-backup mode. Errors 235