Parts Names And Functions - Brother DCPJ525W Service Manual

2.3

Parts Names and Functions

Document scanning and feeding
Names
Document detection actuator
Document pick-up roller
Document separation roller and
separation rubber
Document feed roller 1
Document scanning position
actuator
Document feed roller 2
Printing and paper feeding
Names
Paper pull-in rollers
Registration actuator
Paper feed roller
Pressure roller release actuator
Paper ejection roller
Switchback roller
DX roller
Functions
This detects whether documents are set on the document tray.
This pulls documents loaded in the document tray into the ADF.
These feed document pages (drawn in by the document pick-up
roller) one at a time to the document feed roller 1.
This feeds a document to the scanning start position. It also ejects
the scanned document onto the document cover.
This detects the leading edge of document pages, indicating the
scanning start position.
This also detects paper jams in the ADF.
This feeds the scanned document to the document feed roller 1.
Functions
These rollers pull in recording paper from the paper tray.
This detects the leading and trailing edges of recording paper for
indicating the printing start position and for judging the paper size,
respectively.
This also detects paper jams in the rear section of the machine.
This stops its rotation so that the leading edge of recording paper
comes into contact with the roller for alignment (registration).
After registration, this roller rotates to feed the recording paper to
the printing start position.
In disc printing, this roller feeds the disc tray.
In disc printing or in printing on glossy paper, this detects whether
the pressure roller is released.
This feeds printed recording paper to the switchback roller.
In disc printing, this roller feeds and ejects the disc tray.
This ejects recording paper to the paper ejection tray.
In duplex printing, after feeding recording paper printed on its first
side by the specified amount, this roller reverses to feed the paper to
the DX chute.
In duplex printing, this roller feeds recording paper passing through
the DX chute, to the paper feed roller.
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