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• Magnetic sensor method
A magnetic sensor is pressed against the side of the toner container in the
cartridge to detect the amount of toner in the toner container. The magnetic
field generated by the toner, which is a liquid, generates a voltage on the
coil inside the magnetic sensor. Toner is judged to be absent when the out-
put voltage applied to this coil falls below a certain stipulated value.
When There is No Toner Detection Method
The toner detection function may not necessarily be needed if the facsimile
is used only as a printer. The reason for this is that a new toner cartridge
should be loaded and printing should be executed again if the print image
is faint or printed as blank. What should we do for a facsimile? If the print
image is faint after the image has been received, we must contact the other
party and ask them to send again. Alternately, if a received print image is
blank, it is impossible to know where the image was transmitted from.
Accordingly, facsimile products have a toner detection function. When the
toner cartridge runs out of toner, received messages are stored to memory,
and are printed when a new toner cartridge is loaded.
RECORDING SECTION
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