d-Color MF4003/MF3303
P THEORY OF OPERATION > 1. d-Color MF4003/MF3303
P-4
• The original is pressed against the registration roller and registration roll. This forms a loop in the original to thereby correct any skew in
the original.
• The rotation of the registration roller drives the document main motor drive via the gear.
[1] Document registration sensor (PS17) [2] Document paper feed clutch (CL8)
[3] Document main motor (M8) [4] Document registration roller
[5] Document registration roll [6] Actuator
(3)Document reading mechanism
• The document before read roller and document after read roller are driven by the document main motor.
• When reading a 2-sided original, the 2-sided original (the front side and back side) is read at once in one pass of the original.
• The front side of the 2-sided original is read by the scanner unit section of the main body after the leading edge of the original has moved
past the document before reading roller.
• The back side of the 2-sided original is read by the CIS module after the leading edge of the original has moved past the document after
reading roller.
[1] Document main motor (M8) [2] CIS module (DFCIS)
[3] Document after reading roll [4] Document after reading roller
[5] Document before reading roller [6] Document before reading sensor (PS18)
[7] Document before reading roll -
(4)Document exit mechanism
• The paper exit section includes the document exit roller that feeds the original transported from the reading section out onto the
document exit tray.
• The document exit sensor roller drives by the document main motor.
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