HP LaserJet 9040/9050 Service Manual - Page 77

Cleaning the printer and accessories To maintain superior print quality and performance, use the following procedures to clean the printer and the paper-handling accessories thoroughly every time you change the print cartridge or whenever print-quality problems occur. General cleaning WARNING! In order to avoid shock hazard, turn the printer and the paper-handling accessories off and unplug all of the power cords before you begin these steps. CAUTION Do not use ammonia-based cleaners on or around the products. While cleaning the printer, be careful not to touch the transfer roller (located underneath the print cartridge). Skin oils on the roller can cause print-quality problems. To prevent damage, do not expose the print cartridge to direct light. Place a piece of paper over the print cartridge to shield it while it is out of the printer. z Clean the outside of the products with a water-dampened cloth. z Clean the inside of the products with a dry, lint-free cloth. Cleaning spilled toner Defective print cartridges can develop leaks. After a jam has occurred, some toner might remain on the rollers and guides inside the printer. The pages that print immediately after the jam can pick up this toner. Note To clean skin and clothing of toner spills, remove as much toner as possible with a dry tissue, and then wash with cold water. Hot water causes toner to set permanently into clothing. Vacuum specifications Do not use a conventional vacuum to vacuum the printer or any spilled toner. The toner particles that are used in this product might be too fine for effective vacuuming and could result in damage to the conventional vacuum cleaner. A vacuum cleaner that is specifically designed for cleaning toner can be used if it is capable of filtering fine particles (5 microns in diameter). Dispose of waste toner in accordance with local requirements. Do not discharge toner particles in drains. First aid measures z Ingestion-If toner is ingested, rinse your mouth thoroughly with water and drink several glasses of water. If irritation occurs, consult a physician. z Inhalation-If toner particles are inhaled, move to fresh air immediately. If irritation occurs, consult a physician. z Eye contact-If toner comes in contact with the eyes, immediately flush them with plenty of water for at least 15 minutes. If irritation occurs, consult a physician. z Skin contact-If toner spills on skin, remove as much toner as possible by using a dry tissue (more than one might be needed), and then wash the affected area of the skin with cold water. If irritation occurs, consult a physician. Cleaning the printer and accessories 61