| Ink tube transfer | |
|---|---|
| Difficulty | Beginner |
| Duration | 10 minutes |
| Tools | M24×3.0 nut Donor tube (with ink) Recipient tube (empty) |
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An ink tube transfer moves ink from one cartridge to another. It is one of the ways to modify new supplies to work with older machines, and can also be used to deal with the false empty tube error.
For the most part this process can be done quickly and easily with a fool tools—but not done carefully it can be an inky process.
For an alternate method of modifying tubes for older machines, see: 3D printed ink tab.
Riso ink is packaged in roughly 1000 mL quantities in plastic ink tubes (officially "cartridges"). All forms of cartridge have some means of being identified by the drum and riso. This was both to prevent the wrong color from being used when changing the ink cartridge, and to establish a system of proprietary inks. While there are different formulations of ink, the ink itself can often be used interchangeably across machine but the cartridges cannot.
There are two basic systems of tube and tube recognition:
RPRN tubes, a physical tab projects from the end of the tube, next to the nozzle, and presses a button inside the drum. Different tab positions press different buttons, and usually identify the type of tube and the machine it is meant for. This type of tube has a large nozzle and color tubes are usually marked "COLOR" rather than with a series name.