Controlling The Output To Suit The Environment (Fuzzy Control); Correcting The Output At The Trailing Edge Of Paper - Canon imageRUNNER 7095 Service Manual

Chapter 7

7.8.2.2 Controlling the Output to Suit the Environment (fuzzy control)

The transfer current output is optimized to suit the environment (data for the environment sensor).
SERVICE MODE:
- COPIER> OPTION> BODY> FUZZY (enabling/disabling fuzzy control)
0: enables fuzzy control (default)
1: low humidity environment mode (the transfer current is lower than standard)
2: normal humidity environment mode
3: humidity environment mode (the transfer current is higher than standard)
If set to '1' through '3', the control will be independent of the environment sensor.

7.8.2.3 Correcting the Output at the Trailing Edge of Paper

When copy paper moves in contact with the transfer charging assembly, the resistance of the assembly
drops abruptly as soon as the paper leaves, possibly permitting discharge current to flow momentarily,
causing transfer faults or image smears along the trail edge of the image. The machine is designed to cor-
rect (decrease) the transfer current to prevent these faults.
7-30
590 A
Low humidity
The output of the transfer current is
varied over a width of 20 mm along
the trailing edge of paper.
Feeding direction
High humidity
F-7-39
Paper
F-7-40
20 mm
0010-8071
0010-8072