Canon imageRUNNER ADVANCE C3500 III Series Service Manual page 111

● Black Band Sequence
Execution condition/timing
hen the travel distance of the drum or the ITB has exceeded the designated value
Control description
In order to prevent the Cleaning Blades flip, toner is supplied to the Drum Cleaning Blade and the ITB Cleaning Blade.
Transparency Black Band Sequence
Execution condition/timing
When a predetermined number of transparency films have been fed
Control description
When a large number of transparency films are fed, surfactant adheres to the ITB, which causes image failures due to degradation
of transfer efficiency. Therefore, a solid Bk patch is formed on the ITB to remove the surfactant together with toner.
● Developing Discharge Sequence
Execution condition/timing
When the average image ratio per sheet reaches the default value or less
Control description
Supply a toner in ITB, then maintain ability for developing.
■ Warm-up Rotation Control
* The Developing Unit idle rotation time: Short: Approx. 15 seconds, Long: Approx. 30 seconds
Purpose
To check the status of sensor/motor at power-on or recovery from sleep mode.
Control description
According to the conditions, one of the following 3 patterns of warm-up rotation is performed: none, short, or long.
Power-on
When the power is turned ON (at quick startup)
When recovering from sleep mode (8 hours or more
have elapsed in sleep mode)
When the door is closed
Warm-up rotation control is not executed when "Insert the waste toner container.", "Replace the waste toner container.", or
"Replace toner cartridge. (Black)" is displayed.
Warm-up rotation control
Primary Transfer ATVC
Developing Unit idle rotation
Secondary Transfer Outer Roller cleaning
Patch Sensor adjustment
Laser light intensity correction (D-max) control
D-half control
Condition
(High temperature and high humid-
ity environment
Not a high temperature and high hu-
midity environment
(High temperature and high humid-
ity environment
Not a high temperature and high hu-
midity environment
(High temperature and high humid-
ity environment
Not a high temperature and high hu-
midity environment
Long
Yes
Yes
Yes
Yes
Yes
Yes
89
Pattern
Short
None
None
Long
Short
None
None
Short
Yes
Yes
Yes
No
No
No
2. Technology
None
No
No
No
No
No
No