Oki MC160MFP Maintenance Manual page 59

Oki Data CONFIDENTIAL
4. Mechanical operations
4. Mechanical operations
4.1 4.1 Document feed mechanism Document feed mechanism
• The media feed sensor detects a document that has been properly loaded in the docu-
ment feeder.
• The document stopper establishes the leading edge position of the document loaded in
the document feeder. The stopper is lowered in the standby state and raised when the
document is taken up and fed in.
• The document stopper is raised and lowered in synchronism with the raising and lower-
ing motion of the pick-up roller.
• The pick-up roller and media feed roller turn to take up and feed the original properly.
• The pick-up roller transports the original up to the media feed roller.
• The DF transport motor drives the pick-up roller and media feed roller through a gear
train.
Relay board/1 (REYB/1)
Media feed roller
Pick-up roller
44292401TH Rev.1
DF transport motor (M100)
Media feed sensor
A0HFT2C508AA
4.1.1 Document separation mechanism
4.1.1 Document separation mechanism
• Double feeding of paper is prevented using coefficient of friction between the media feed
roller and separator pad.
Media feed roller
Single sheet feeding : The coefficient of friction on the front side of the paper fed between the
media feed roller and separator pad is equal to that on the backside of the
paper. This allows the media feed roller to transport the paper.
Multiple sheet feeding : The coefficient of friction between the paper and separator pad is greater
than that between sheets of paper. This allows only the first sheet of paper
to be transported by the media feed roller.
Single sheet feeding
MAINTENANCE
Separator pad
A0HFT2C509AA
Multiple sheet feeding
1382M009AA
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