HP d640 HP D640 High-Volume Printer - User Manual (Printer and Accessories), C - Page 29
Behind the Upper Right Cover, Collects waste toner for disposal.
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About Your Printer Getting to Know the Printer Behind the Upper Right Cover By opening the upper right cover, you gain access to the printer's consumables, as shown in Figure 1-6 and described below. • Toner hopper: A reservoir that holds toner. The Control Panel displays messages to indicate toner low and toner empty status. Never add toner before the printer indicates that toner is needed. • Developer unit: holds the developer mixture that prepares toner for transfer to the photoconductor drum. • Developer collector bottle: Collects used developer for disposal. • Toner collector bottle: Collects waste toner for disposal. Note Never pour waste toner into the toner hopper. If you do not want to discard waste toner, use the toner recycling feature described in "Toner Recycling Switch" on page 6-8. Caution Never re-use developer. Severe print quality problems and physical damage may occur if you do so. About Your Printer 1-13