Lexmark X7500 Service Manual - Page 29
the paper is scanned at the platen glass.
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Page 29 highlights
4036-501 Step 2: Scan of side 2 • The paper is re-fed to the large roll by the counterclockwise rotation of the exit/reverse roll. • After passing over the upper side of the exit gate, the paper actuates the pre- registration sensor #2. Movement of the paper is then interrupted for a specific amount of time to synchronize paper feed timing. • The paper moves toward the DADF platen glass. The paper is interrupted to synchronize the feed timing with the scanning timing of the scanner by the command signal sent from the DADF registration sensor card. • The paper moves to the platen glass by the rotation of the large roll. Side 2 of the paper is scanned at the platen glass. • After scanning, the paper moves toward the exit/reverse roll passing the gate through the lower path. The paper is nipped by the exit/reverse roll. • The paper movement is interrupted for a specified time when the end of paper passes on the exit/reverse sensor. General Information 1-19