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COPYRIGHT
©
1999 CANON INC. CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
6-33
CHAPTER 6 IMAGE FORMATION SYSTEM
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).
Figure 6-314 Separation Current Output Table
High toner deposit
Average toner deposit
Low toner deposit
High humidity
Separation current(µA)
Low humidity
If the toner deposit is high, the current level is decreased
to prevent double transfer.
In a low humidity environment, paper tends to
dry up, collecting excess charges (high
resistance); as such, the output is decreased.
If the toner deposit is little, the output is
increased to prevent separation fault.
COPIER>OPTION>BODY>FUZZY
(fuzzy control ON/OFF)
Related Service Mode
0: enable fuzzy control. (default)
1: low humidity mode. (The separation current is lower than
the standard level.)
2: normal humidity mode.
3: high humidity mode. (The separation current is higher than
the standard level.)
Selecting '1' through '3' makes the control mechanize
independent of the environment sensor.