Brother International MFC 8890DW Service Manual - Page 54
Paper registration, print position on the paper. - drum and toner
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3.3.3 Paper registration After the paper top position is detected by the regist actuator front, the paper, separated into individual sheets by the separation roller, is fed further for a specified time, and the paper top position reaches the regist roller so that the paper skew is adjusted. Then, the regist solenoid is turned on, the regist roller starts turning, and the paper is fed to the transfer roller in the drum/toner ASSY. Drum/toner ASSY Exposure drum Transfer roller Regist actuator rear Regist roller Regist actuator front Fig. 2-16 Separation roller The regist actuator rear in the path from the regist roller to the transfer roller controls the first print position on the paper. The printer starts transferring an image when a definite time passes after the paper is passed through the regist actuator rear. 2-16 Confidential
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