HP LaserJet 9040/9050 Service Manual - Page 83

Print cartridge information Note CAUTION Print cartridges contain components that are sensitive to light, temperature, and humidity. Make sure that the customer follows the recommendations in this section to ensure the highest quality and longest life of the print cartridge. Storage The print cartridge (C8543X) should not be removed from its package until installation. If cartridges are stored, the storage environment should meet the conditions listed in the following table. Table 13. Storing print cartridges Category Storage Temperature -20°C to 40°C (-4°F to 104°F) Humidity 10% to 90% RH If the print cartridge must be removed from the printer, always store the cartridge in a situation that meets the following criteria: z Inside the protective bag in which it was originally packaged If original package is not available, cover the top opening of the print cartridge with paper. z In a dark cabinet, away from direct sunlight z With the correct side up and with the cartridge in a horizontal position (not standing on end) z At a temperature listed in the preceding table z Away from ammonia or other organic-solvent fumes Never ship the printer with a print cartridge installed. Excessive vibration during shipping can cause toner to leak, contaminating the printer. Never expose the print cartridge to direct sunlight, or to room light. Bright light and direct sunlight can permanently damage a print cartridge. Handling instructions z Do not touch the surface of the photosensitive drum in the cartridge. Protect the drum from light and contamination. z Do not expose the cartridge to unnecessary vibrations or shock. z Do not expose the photosensitive drum to strong light. Blurred areas on the page might indicate that the drum has been exposed to light for too long. This causes permanent damage to the photosensitive drum. If this occurs, replace the cartridge. z Never manually rotate the drum, especially in the reverse direction. Manual rotation can cause internal damage and toner spills. Print cartridge information 67