Ricoh 70eI92 用户手册

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Store the paper, toner, and other supplies in a place free from direct sunlight and 
away from any heating apparatus. Keep them in a dry, cool, clean environment.

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Store paper that has been removed from its wrapper, but not loaded into the 
drawer, in a sealed, plastic bag in a cool, dark place.

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If your hands become soiled with toner, wash them with soap and water 
immediately.