Ricoh B132 Service Manual page 780

PROCESS CONTROL
During process control, the creation of the patterns is timed so the Magenta, Cyan
and Yellow patterns are transferred to the ITB at approximately the same time. The
color ID sensor # then reads the color ID sensor patterns in the order M, C, Y.
Note that the K pattern is read by the black ID sensor $ at approximately the same
time the Magenta pattern is being read.
These ID sensors read the following patterns from the ITB:
• 10-grade patterns (x4) during process control
• 16-grade patterns (x4) during process control gamma correction
• ID sensor patterns (x4) at 10 page (and other intervals) for toner supply control
B132/B200 6-78 SM