Original Mimaki UJF-6042MkII e / UJF-3042MkII e Sub Tank – M021937

The Mimaki M021937 sub tank assembly (Subtank Assy, also listed as M018240) is part of the ink supply system of the UJF-3042 and UJF-6042 MkII family of UV flatbed printers, including the UJF-3042MkII e, UJF-3042MkII EX and UJF-6042MkII e. It holds a small reserve of ink between the main ink supply and the print head and helps maintain the correct, stable ink pressure at the nozzles while the carriage moves and the head fires. This is a genuine, original Mimaki part – not a copy or compatible replacement.

A sub tank needs replacing when it leaks, when its body is cracked, or when cured UV ink has contaminated it so the ink level or pressure is no longer stable. Typical symptoms include ink supply or sub tank errors on the panel, nozzles that drop out during long prints, air in the ink line, ink dripping onto the media or table, and colours that fade across the job. Replacing the sub tank restores reliable ink delivery to the head.

Key features

• Genuine Mimaki sub tank assembly, part number M021937 (related code M018240)
• Fits UJF-3042, UJF-3042MkII / MkII e / MkII EX and UJF-6042MkII / MkII e
• Keeps ink supply and head pressure stable
• Helps prevent ink starvation, air and dripping
• Direct replacement for the original sub tank

Compatible with: Mimaki UJF-3042, UJF-3042MkII, UJF-3042MkII e, UJF-3042MkII EX, UJF-6042MkII, UJF-6042MkII e

Please check the part number on your existing part, or contact us with your machine model and serial number if you are not sure about compatibility.