HP PageWide XL 3900 User Guide - Page 86
Maintenance cartridge, Maintenance cartridge part number, Replace the maintenance cartridge
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Maintenance cartridge The maintenance cartridge cleans and maintains the printheads, and stores waste ink. The maintenance cartridge contains a roll of cloth, which is used to clean the printheads. It has a total capacity of 500 wipes (cleaning operations). A heavy user will need to replace it about every 2 months. The printer will refuse to start a print job if it detects the end of the cleaning roll. You should then replace the maintenance cartridge with a new one. TIP: You are recommended to wear gloves when replacing the maintenance cartridge. Maintenance cartridge status ● Ready ● Missing ● Almost finished ● Finished Maintenance cartridge part number The HP 841 maintenance cartridge has the part number F9J48A. Replace the maintenance cartridge IMPORTANT: Be ready with the new maintenance cartridge before starting the replacement. Once the cartridge is moved to the replacement position, you have 40 seconds to change it. If you exceed that limit, the maintenance cartridge is automatically moved back so that the printheads do not become dry. If the front panel shows an error, close the service door. 1. Remove the packaging from the new maintenance cartridge. 2. Start the replacement from the front panel. 80 Chapter 3 Ink system ENWW