Ricoh D124 Detailed Descriptions Manual page 35

3. As soon as paper starts to feed onto the platen, the paper transport fan below the
perforated platen switches on. This provides the suction to hold the paper on the
platen.
4. To check for paper skew:
 The carriage moves to the left and the DRESS sensor, mounted on the left side
of the carriage, checks the right edge of the paper. Then, the machine feeds
more paper and then the sensor checks the right edge again.
 If the 1st and 2nd readings deviate by more than ±10 mm, this indicates
excessive skew.
 The paper is rewound and the operator must set the paper again.
5. If no skew is detected, the carriage moves to the left side of the machine and the
DRESS sensor detects the left edge of the paper. This detection of the right and
then the left edge of the paper is for image registration.
6. The paper is reverse fed as far as the registration roller and stops. This is the
registration standby position and the machine is ready to start printing.
Detailed Descriptions 29 D124