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6.2 SYSTEM LAYOUT
6.2.1 PAPER FEED
The paper tray unit and the manual by-pass unit automatically feed paper to the
machine. A friction pad separates the paper and ensures that paper is fed one
sheet at a time.
A sensor checks when the paper tray is empty. At this time a message appears on
the operation panel. (There is no Paper Near End Sensor in this machine.)
• Feeding Method: Universal Cassette Type
• Feeding Standard: Center Loading
• Feeding Capacity: Cassette-250 sheets (75g/m2, 20lb paper standard)
• Manual: 1 sheet (paper, OHP, envelop, etc.)
• Paper detecting sensor: Photo sensor
• Paper size sensor: None
6.2.2 TRANSFER ASSEMBLY
The transfer assembly consists of the PTL (Pre-Transfer Lamp) and the transfer
roller. The PTL sends light to the OPC drum. This light lowers the charge on the
drum's surface, and improves transfer efficiency. The transfer roller moves toner
from the OPC drum surface to the paper.
6.2.3 DRIVE ASSEMBLY
The drive assembly is a gear-driven power unit. The motor supplies power to the
following:
• Paper feed unit
• Fusing unit
• Toner cartridge
SM
6-3
SYSTEM LAYOUT
B273
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