Toner Cartridge Information Toner cartridges contain components which are sensitive to light, temperature, and humidity. Make sure the user follows the recommendations in this section to ensure the highest quality and longest life of HP toner cartridges. Storage The toner cartridge should not be removed from its package until installation. The shelf life of a cartridge in an unopened package is approximately 2.5 years. The shelf life of a cartridge in an opened package is approximately 6 months. The expiration date of the toner cartridge is stamped on the cartridge box. If cartridges are stored, the storage environment should meet the conditions listed in the following table: Table 4-1.
Storing Toner Cartridges If the toner cartridge must be removed from the printer, always store the cartridge as follows: • Inside the protective bag in which it was originally packaged. • In a dark cabinet, away from direct sunlight. • Correct side up and in a horizontal position (not standing on end). • In a temperature listed in the table above. • Away from ammonia or other organic solvent fumes. CAUTION: Never ship the printer with a toner cartridge installed. Excessive vibration during shipping can cause toner to leak, contaminating the printer. Never expose the toner cartridge to direct sunlight, or to room light for more than a few minutes.
Bright light and direct sunlight can permanently damage a toner cartridge. 62 4 Printer Maintenance C4170-90959 Category Temperature Humidity Operating 10 to 32.5 degrees C (50 to 90.5 degrees F) 35 to 85% RH Storage -20 to 40 degrees C (-4 to 104 degrees F) 15 to 90% RH