Specifications

Basics Sensing System Theory - 5
cassette-fed and manual-fed paper. If the paper does not
reach the top position of this sensor in the required time,
the printer determines that a pick-up delay jam has
occurred.
Winding paper sensor PS303 detects the passage of paper
from the photosensitive drum to the fuser. If the paper does
not pass this sensor in time, the controller board
determines that a jam condition exists.
Paper delivery sensor PS301 detects the passage of paper
through the fuser assembly. If the paper does not pass this
sensor in time, the controller board determines that a jam
condition exists.