Canon imageRUNNER C1335 Series Service Manual page 100

2
Technical Explanation > Image Formation System > Controls > Warm-up Rotation
● Detection of the completion of waste toner replacement
Detection timing When the Waste Toner Sensor PCB (UN17) is turned ON for 3 seconds after
the Front Door is opened/closed while "preparation warning" or "waste toner full
level" is detected
Remarks The parts counter is automatically cleared.
■ Other Controls
● Special Controls
This machine has the following sequences as the special sequence.
Black Band Sequence
Solid black band
Black Band Sequence
Control timing: If the travel distance of the drum or the ITB has exceeded the designated
value
If you perform continuous printing while toner is not being fed to the Drum Cleaning Blade
and ITB Cleaning Blade, the cleaning blades may become warped.
Toner (solid image of each color, width: full width of the developing area, length: 20 mm) is
therefore transferred onto the drum and ITB to supply toner to the Drum Cleaning Blade and
ITB Cleaning Blade.
Developing Discharge Sequence
Control timing: When the average image ratio per sheet reaches 2% or less
Developing performance can decrease when performing continuous printing with low image
ratio. To prevent this error, the average image ratio for each color is calculated with the ATR
control and adequate amount of toner based on the calculation (width = A4, length = a solid
color band according to the deteriorated toner amount) is transferred to the ITB.
2 Technical Explanation > Image Formation System > Controls > Warm-up Rotation
T-2-34
Developing Discharge
Sequence
Solid color band (Y/M/C/BK)
F-2-103
■ Warm-up Rotation
● Operation overview
This operation is performed to check the status of sensor/motor at power-on or recovery from
sleep mode. According to the conditions, one of the following 3 patterns of warm-up rotation
is performed: none, short, or long.
Conditions
At power-on
24 hours or more in sleep mode
4 hours or more but less than 24 hours in sleep
mode
Less than 4 hours in sleep mode
Warm-up rotation control
Primary Transfer Roller Disengagement Control
Waste Toner Container stirring
Idle rotation of the Developing Assembly
Drum Unit Detection
Drum Unit Life Detection
Primary Transfer ATVC
Primary Transfer Roller Disengagement Control
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Fixing temperature
255 deg C or more less than 80 deg C
None Long
- Long
- Short
None None
T-2-35
Long Short None
Yes Yes No
Yes Yes No
Yes Yes No
Yes Yes No
Yes Yes No
Yes Yes No
Yes No No
T-2-36
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