The accuracy of the estimated number of remaining pages may decrease when the actual printing consumption
is dierent from the historical printing consumption. Consider the variable level of accuracy before purchasing
or replacing supplies based on the estimate. Until an adequate print history is obtained on the printer, initial
estimates assume future supplies consumption based on the International Organization for Standardization*
test methods and page content.
* Average continuous black declared cartridge yield in accordance with ISO/IEC 19752.
Storing supplies
Choose a cool, clean storage area for the printer supplies. Store supplies right side up in their original packing
until you are ready to use them.
Do not expose supplies to:
• Direct sunlight
• Temperatures above 35°C (95°F)
• High humidity above 80%
• Salty air
• Corrosive gases
• Heavy dust
Replacing supplies
Replacing the toner cartridge
1 Press the button on the right side of the printer, and then open the front door.
2
1
Maintaining the printer 166
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