Fixing the printhead (no has ink )which is need to test on the right position except black nozzle .(Meanwhile insure the black nozzle is using normally and not influence other nozzles)

    Confirming packs paper and then start to clean the printhead.

    Enter Pause key after the machine sprayed the first black test line(i.e. No.1 of test lines)

    Take down the printhead ( In order to avoid the printhead is spoiled)

    Enter Pause key again and test finished.

    Review the last test line about C,M，Y，K，if the number of the pass shows 3,4,6,8,10, that means the printhead is good .