Canon iR C6800 Series Portable Manual page 326

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PCHINT- Use it to change the intervals of 1-patch detection (No. 1 limit) in terms
1
of the number of prints.
Use it to change the intervals of patch ATR for the No. 1 limit. A higher
limit will increase the downtime intervals, but will affect the density. On
the other hand, although a lower limit may decrease the downtime
intervals, the density will be more stable.
The following triggers are used to initiate patch detection:
1. when the 1st limit (20 prints) is exceeded, execute patch detection
during the last rotation of the ongoing job.
2. when the 2nd limit is exceed, stop the ongoing job and force patch
detection.
(1 print = 3 images (YMC only); for image count, 1 for small and 2 for
large)
The above No. 1 limit may be changes. A higher limit will increase
downtime intervals, but will affect density. On the other hand, although
a lower limit will decrease downtime intervals, the density will be more
stable.
By default, the No. 1 limit is 20 prints (60 images), variable between -10
and + 10 (offset).
Use it to change the intervals of 1-patch detection (No. 1 limit) in terms
of the number of prints.
settings range: -10 to +10
at time of shipment/upon RAM initialization: 0
PCHINT- Use it to adjust the intervals of patch detection (No. 2 limit).
2 Use it to change the patch ATR intervals for the No. 2 limit.
For the triggers used to initiate patch detection, see the list for PCHINT-
1.
Settings range: -10 to +10
at time of shipment/upon RAM initialization: 0
PCHINT- Use it to adjust the intervals of patch detection (video counter cumulative
V count).
Use it to change the intervals of patch ATR in relation to the video
counter cumulative count.
Settings range: -10 to +10
at time of shipment/upon RAM initialization: 0
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