HP Q7699A HP LaserJet 9040/9050 - User Guide - Page 92

Cleaning the printer WARNING! CAUTION General cleaning To maintain print quality, clean the printer thoroughly: ● every time you change the print cartridge. ● whenever print-quality problems occur. Clean the outside of the printer with a lightly water-dampened cloth. Clean the inside with only a dry, lint-free cloth. Observe all warnings and cautions that appear with the cleaning tasks on the following pages. Avoid touching the fusing area when cleaning the printer. It can be hot. To avoid permanent damage to the print cartridge, do not use ammonia-based cleaners on or around your printer. To clean the printer 1 Before you begin these steps, turn the printer off and disconnect all cables, including the power cable. 2 Open the front cover of the printer and remove the print cartridge. CAUTION Note To prevent damage to the print cartridge, use two hands when removing it from the printer. Do not expose the print cartridge to light for more than a few minutes. Cover the print cartridge when it is outside of the printer. If toner gets on your clothes, wipe it off with a dry cloth, and wash your clothes in cold water. Hot water sets toner into fabric. 90 Chapter 5 Printer maintenance ENWW