Lexmark X7500 Service Manual - Page 28

4036-501 Operational Pattern 2 Step 1: High speed paper feed • The rotation of the nudger roll causes the paper on the DADF tray to feed into the feed roll. • A sheet of paper moves to the registration roll by the rotation of the feed roll. When the pre-registration sensor 1, located just in front of the registration roll, detects the passing the top of the paper, the paper movement is interrupted for the specified time to synchronize with the paper feed timing. • After the timing adjustment, the paper restarts toward the registration roll. • After passing the chute, the paper moves by the rotation of the large roll through the lower path of the gate toward the exit/reverse roll. • When the exit/reverse sensor detects the passing of the top of the paper, the paper is nipped by the exit/reverse roll. • The paper movement is interrupted for a specified time when the end of the paper passes to the exit/reverse sensor. 1-18 Service Manual