Riso ComColor X1 series Technical Manual page 278

Ink Flow Section
8) Reboot the machine manually to make the newly set Test Mode settings effective.
9) Error message [Z05-1212 Close the front doors] displays. --- Close the Front door.
10) Error message [W51-1301 Recovery operation] may display -- Press the (Confirm) button
11) The ink starts to fill into the machine
< The machine will display [Processing: Please wait a moment] message while filling the ink. It will take a
while for the machine to be filled with ink. Do not touch the machine until the ink filling is completed and
the machine comes to operational <Idle> condition.
The procedure to change the machine status to [NEW type Ink circulation system] is completed.
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ComColor Series (Revision 2.4)