COPY PROCESS OVERVIEW August, 2006
6-10
6.3 COPY PROCESS OVERVIEW
This machine has four PCUs in a straight line: Y, M, C, K.
• The ITB lift motor raises and lowers the ITB unit.
• The ITB lift motor raises ITB for full-color copying. The drum of every PCU
contacts the ITB below.
• The ITB lift motor lowers the ITB for black-and-white copying. Only the black
PCU (on the far right) contacts the ITB below.
• During black-and-white copying, the drums of the other PCUs (Y, M, C) are
separated from the ITB and do not rotate. This reduces wear on the moving parts
of these PCUs during black-and-white copying.
• If a job contains black-and-white pages and full-color pages, the action of the ITB
is controlled by SP5880 001. See section 6.12.3
K
M
C
Y
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