HP Photosmart Premium Fax All-in-One Printer - C309 Full User Guide - Page 212
To clean the electrical contacts in the product
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Chapter 13 c. Use a fresh, lightly dampened, lint-free cloth to wipe the plastic ramps on both sides of the nozzles. Wipe away from the nozzles. d. Wipe the previously cleaned areas dry with a dry lint-free cloth before proceeding to the next step. 7. Clean the electrical contacts inside the product. To clean the electrical contacts in the product a. Lightly dampen a clean, lint-free cloth with bottled or distilled water. b. Clean the electrical contacts in the product by wiping with the cloth from top to bottom. Use as many fresh, clean cloths as necessary. Clean until no ink shows on the cloth. c. Wipe the area dry with a dry lint-free cloth before proceeding to the next step. 8. Make sure the latch handle is raised, and then reinsert the printhead. 210 Solve a problem Solve a problem