Liquid consumption device

The liquid consumption device addresses incorrect cap installation in inkjet printers by using distinct caps and engaging portions to prevent mixing of ink colors, ensuring accurate refilling and maintaining a universal tank design.

JP2026115504APending Publication Date: 2026-07-09BROTHER KOGYO KK

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
BROTHER KOGYO KK
Filing Date
2024-12-27
Publication Date
2026-07-09

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  • Figure 2026115504000001_ABST
    Figure 2026115504000001_ABST
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Abstract

To provide a liquid consumption device that can suppress the occurrence of incorrect cap installation. [Solution] The ink tank set 51 has keyways 74M1 and 74M2 in the through-hole 72M into which the annular wall 122 of the magenta ink chamber 111 is inserted, and keyways 74CY1 and 74CY2 in the through-hole 72CY into which the annular wall 122 of the cyan ink chamber 111 is inserted, which have different shapes. The engaging parts 125M1 and 125M2 provided on the tank cap 127M for magenta engage with the keyways 74M1 and 74M2 provided on the through-hole 72M for magenta, but do not engage with the keyways 74CY1 and 74CY2 provided on the through-hole 72CY for cyan. This prevents the occurrence of installation errors where the tank cap 127 of one color is attached to the through-hole 72 of another color.
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