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8:2 Unable to move the printhead
While initialising the cam, and having detected the leading edge of the cam pulley flag, it took too long to detect the trailing edge of the flag.
A common cause for this type of error is that the wrong type of power supply lead is being used with the printer (in which case, this may not be an actual printer fault at all).
A non-Magicard power lead (for example, that used for a typical Lapt