Ricoh D014 Service Manual page 961

This diagram shows a close-up view of the sub-scan test pattern.
K is the reference, and the positions of CMY are adjusted with reference to the K pattern.
The CMY patterns are at constant intervals, but the K pattern overlaps the CMY patterns as
shown.
The MUSIC sensor response is measured.
The output is lowest when the K pattern fully overlaps the color pattern (the dotted lines in
the diagram cross at this point). This is the "Actual" position as shown in the diagram. But
there is a "Target" value in the machine software (an example is shown on the diagram; this
is not the real target, it is just an example to explain the process). The machine compares
the "Actual" and "Target" values, and adjusts the speeds of the drum motors (Y, M, C)
according to the results of this comparison.
SM
CÓPIA NÃO CONTROLADA
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CÓPIA NÃO CONTROLADA
Process Control
D014/D015/D078/D079