• See the following.

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[Remaining Ink 0（zero）cartridge]

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When UISS function detects near end or ink end with 4-color operation, it automatically switches to another cartridge. For example, when primal magenta cartridge detects ink-end, the valve automatically switches to secondary magenta cartridge to supply the ink.  
Note: if you perform cleaning, it uses the ink from near-end/ink-end error detected cartridge to avoid wasting the remaining ink.  
If it is the case above, it performs cleaning with the remaining ink in the primal cartridge. If the ink in the cartridge is completely used up, it indicates [cartridge with remaining ink 0(zero)].

*UISS functions with 4-color operation only.

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