Xerox 8500DN Service Manual - Page 55
Print Process, Drum Preparation
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UPC - 095205022063
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Print Process Theory of Operation Once the printer processes an image and creates a printing bitmap, the print cycle begins. Sensors maintain correct operating temperatures for the Printhead and Drum. Sensors also monitor ink levels in the reservoirs. If necessary, the ink loader adds ink. At the ready state, the print process consists of the following steps: ■ Drum Preparation ■ Printing ■ Paper Pick ■ Transfixing and Exiting Warning Keep your fingers away from the Y-Axis Motor while the motor is in operation. The motor's closed-loop servo system is inherently dangerous. Drum Preparation To prepare the Drum, the drum maintenance system applies a thin coating of silicone oil to the surface of the Drum. The Process Drive first rotates the Drum Maintenance Camshaft. As the drum rotates, the cams on the ends of the camshaft push against followers on each side of the drum maintenance system, forcing the oil roller and blade against the Drum. The saturated roller evenly distributes oil on the Drum as it rotates. Drum Oil on Drum Blade Drum Maintenance Maintenance Roller Camshaft Drum Maintenance Pivot Plate s8500-016 Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-23
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