The TCU is a toner collection unit housed within the Color LaserJet CP3525, CP4025/4525 printers and CM3530 MFP that collects paper debris and un-transferred toner generated during the operation of the printer. The TCU is an easy-to-replace, high-yield HP supply designed to reduce user intervention rates. The printer control panel will provide a proactive alert when the TCU is approaching the end of life and you need to Order a replacement. The alert provides the product number to order for replacement. The user must replace the TCU when the alert is at Replace. If printing continues after the Replace alert, the printer will display an error message 59.B0 on the printer’s control panel and will stop printing until the TCU is replaced to prevent damage to the printer.
The replacement product numbers for the TCU are:
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CE254A for the CP3525 and the CM3530mfp
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CE265A for the CP4025/4525