Canon imageRUNNER ADVANCE C5255, Руководство по обслуживанию, Страница: 127 / 1443

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Technology > Fixing System > Controls > Detection of fixing assembly
Technology > Fixing System > Controls > Detection of fixing assembly
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Fixing film edge cooling control
Temperature at the edge of the film is increased when continuously making prints. Excessive
temperature rise can deteriorate the film. When small size paper (A4R or shorter size in width
direction) is printed, the mode changes to the down sequence.
When making prints with paper that is A4R or longer and A3 or shorter in width direction while
the film temperature exceeds the specified temperature (sub thermistor 1,2), the fan attached
near the fixing assembly sends air and cools the film to control temperature rise. Unlike down
sequence, this control will not reduce the through-put because this control is executed while
printing is continued.
Direction of movement
Shutter
Fixing shutter
motor
Fixing shutter
motor
Shutter
Fixing cooling fan (front)
(FM5)
Fixing cooling fan (rear)
(FM6)
M27
A4-R A4 LTR-RB4EXE 8K LTR
M27
Fixing shutter position
sensor (PS32)
Fixing shutter position
sensor (PS32)
Fixing shutter HP
sensor (PS31)
Fixing shutter HP
sensor (PS31)
There is a shutter at the air vent, which moves (opens) in 7 levels according to the size of
feeding paper. This feature enables to send air to optimal area on the film.
F-2-121
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Detection of fixing assembly
The thermistor connection signal, which is input to the DC controller, detects presence of
fixing assembly at warm-up rotation (when the power is turned ON, the cover is open).
An error code “E004-0000” is displayed to stop the operation if no fixing assembly is detected.
Signal Detection result
Thermistor connection signal (THRM_CNNT) High: No fixing assembly is found.
Low: There is a fixing assembly.
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