Toshiba e-STUDIO350 Service Manual page 154

(9) Drawer paper stock sensor
This is a transmissive-type sensor which detects the amount of paper remaining in the drawer
using an actuator. When the remaining paper has become around 100 sheets, the actuator blocks
the light path of the sensor to notify that the paper quantity is getting less.
(10) Feed sensor
This sensor detects whether the leading/trailing edge of paper has passed the feed roller or not. It
also detects jams such as paper misfeeding.
(11) Registration sensor
This sensor detects whether the leading edge of the paper has reached the registration roller or
not, and the trailing edge of paper has passed the registration roller or not.
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e-STUDIO350/450 PAPER FEEDING SYSTEM 9 - 4 November 2003 © TOSHIBA TEC