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HP Color Laser 150 Printers - Replacing a TCU (Toner Collection Unit)

This document is for HP Color Laser 150a and 150nw printers.
A toner collection unit (TCU) collects waste toner during printing. When the Attention light blinks and the printer stops printing, the TCU is full and needs replacing. Avoid reusing a TCU to prevent print quality issues.
HP recommends having a replacement TCU available to avoid possible printing delays.