Correcting The Output To Suit The Environment And The Toner Deposit - Canon ImageRunner 600 Service Manual

2.

Correcting the Output to Suit the Environment and the Toner Deposit

The separation current output is controlled to an optimum level to suit the environment (condi-
tions identified by the data from the environment sensor) and the toner deposit (low, average, or
high based on the count of black pixels).
In a low humidity environment, paper tends to
dry up, collecting excess charges (high
resistance); as such, the output is decreased.
Low humidity
Related Service Mode
COPIER>OPTION>BODY>FUZZY
(fuzzy control ON/OFF)
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If the toner deposit is high, the current level is decreased
to prevent double transfer.
Figure 6-314 Separation Current Output Table
0: enable fuzzy control. (default)
1: low humidity mode. (The separation current is lower than
2: normal humidity mode.
3: high humidity mode. (The separation current is higher than
Selecting '1' through '3' makes the control mechanize
independent of the environment sensor.
CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
CHAPTER 6 IMAGE FORMATION SYSTEM
If the toner deposit is little, the output is
increased to prevent separation fault.
Low toner deposit
Average toner deposit
High toner deposit
High humidity
the standard level.)
the standard level.)
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