A liquid replenishing container configured to replenish recording liquid to a liquid storage container having a receiving portion of the recording liquid, includes a holding portion that holds recording liquid to be replenished to the liquid storage container; and an injecting portion that has an opening to discharge the recording liquid in the holding portion, and that is inserted into the receiving portion of the liquid storage container, wherein the opening opens so as to face an inner wall of the receiving portion.

A liquid replenishing container configured to replenish recording liquid to a liquid storage container having a receiving portion of the recording liquid, includes a holding portion that holds recording liquid to be replenished to the liquid storage container; and an injecting portion that has an opening to discharge the recording liquid in the holding portion, and that is inserted into the receiving portion of the liquid storage container, wherein the opening opens so as to face an inner wall of the receiving portion.

Provided is a tail plug to be attached to a tail end of a shaft part of a writing instrument. The tail plug includes an inner plug that is fitted into the shaft part and an outer plug that is coupled with the inner plug. The inner plug has a first opening through which a fluid can flow in an axial direction of the shaft part; the outer plug has a second opening through which a fluid can flow in the axial direction of the shaft part, and at least one of the first opening and the second opening are configured to be closed when the outer plug and the inner plug are coupled with each other.

A refillable free ink writing instrument comprising a body having a rear end, a front end and an ink reservoir disposed between the rear end and the front end, a writing tip mounted on the front end, the writing tip having a portion in fluid communication with the ink reservoir, the writing tip being removable from the body for refill.

The technology described herein relates to a system and device for saturating an absorbent wicking nib with at least two inks transferred from at least two ink donor structures, to provide a multicolor marker nib. In aspects, a wicking nib device is configured to orient the saturated marking nibs of two different-colored, saturated marker nibs directly adjacent opposing side portions of a porous wicking nib, such that the porous wicking nib simultaneously wicks ink from both contacted marker nibs to create a dual-color marking nib. The wicking nib device may include an aperture for viewing the wicking action.

The invention provides a system for refilling of used markers. The system comprises at least one round plate (1) mounted on a supporting platform, at least one ink reservoir (2) adapted to store ink and positioned at the center of the round plate (1) and one entry hole (3) on the ink reservoir (2) adapted to hold a nib of a marker (6). The round plate (1) of the system is mounted on a motor adapted to rotate the round plate (1) at high speed in a circular motion to dispense ink from the ink reservoir (2) by centrifugal force via the entry hole (3) to refill the marker (6) through the nib.

The invention provides a system for refilling of used markers. The system comprises at least one round plate (1) mounted on a supporting platform, at least one ink reservoir (2) adapted to store ink and positioned at the center of the round plate (1) and one entry hole (3) on the ink reservoir (2) adapted to hold a nib of a marker (6). The round plate (1) of the system is mounted on a motor adapted to rotate the round plate (1) at high speed in a circular motion to dispense ink from the ink reservoir (2) by centrifugal force via the entry hole (3) to refill the marker (6) through the nib.

A device for filling cartridges for a writing implement, the device including at least two separate connectors, a system for metering inks and a system for filling a cartridge, each connector being configured to connect a reservoir containing an ink to the cartridge. The invention also concerns an assembly comprising a device as previously defined and a plurality of ink reservoirs, each ink reservoir being connected to a connector of the device and a method for filling a cartridge using such an assembly.

A device for filling cartridges for a writing implement, the device including at least two separate connectors, a system for metering inks and a system for filling a cartridge, each connector being configured to connect a reservoir containing an ink to the cartridge. The invention also concerns an assembly comprising a device as previously defined and a plurality of ink reservoirs, each ink reservoir being connected to a connector of the device and a method for filling a cartridge using such an assembly.

The present invention provides an ink filling tool including: an ink tank having an internal space configured to store a liquid ink; and a cylindrical nozzle having an inner hole communicating with the internal space of the ink tank, the nozzle being insertable into the through hole. The nozzle is configured to be capable of pressing the valve mechanism which is present inside a pen in a state of being inserted into the through hole, and the nozzle has an ink circulating part configured to communicate the inner hole with an outside in a direction orthogonal to the axis of the nozzle.