Brother Facsimile Equipment MFC7420 - Manual (Page 49)

Confidential 3 - 4
This scanner mechanism supports a dual scanning system: ADF scanning and flat-bed scanning.
They automatically switch to the former at the start of a scan operation if the document front
sensor inside the ADF detects a document.
Separate roller shaft ASSY
Separation rubber
ASSY
LF roller
Separate roller
Suction roller
Pressure roller
Separation roller shaft ASSY
Document front
actuator
Document rear actuator
Ejection roller
ADF motor
Document
Document cover
Pressure roller
Document front actuator
Document rear actuator
Pressure roller