Paper Eject/Release Mechanism; Paper Mechanism Drive; Paper Eject Mechanism Drive Layout; Paper Eject Mechanism Drive Components - Epson Stylus Pro 4400 Service Manual
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EPSON Stylus Pro 4400/4450/4800/4880/4880C
2.2.6 Paper Eject/Release Mechanism
This printer has a paper eject mechanism that switches eject according to the
paper feed device and media used and has a release mechanism that applies
pressure/release by the driven roller.
Operating principles of the eject mechanism and release mechanism are
described below.
2.2.6.1 Paper Eject Mechanism
PAPER MECHANISM DRIVE
PG/PO Motor
Spur Gear, 16
Combination Gear, 24, 36
Spur Gear, 33.6, B
Planetary Holder
(Spur Gear, 20,
Planetary
)
Combination Gear, 19.2, 33.6
Planetary Holder
(Spur Gear, 16,
)
Planetary
Combination Gear, 36, 8.8
Spur Gear, 20
Eject Planetary Unit
(Spur Gear, 17.6,
Combination Gear, 13.6, 20.8
Spur Gear, 32.8
Combination Gear, 11.2, 24
Eject Switch Lever, R
Spur Gear, 21.6, Release
(Spur Gear, 44.8, Eject)
Transmission Frame Shaft
Paper Eject Unit
(Spur Gear, 16, Frame,
(Paper Eject Frame Holder
Transmission)
Figure 2-38. Drive Transmission Path
Operating Principles
Spur Gear, 20
Spur Gear, 28
)
planetary
Switching Rib
(Spur Gear, 15.2)
(right))
Printer Mechanism Components
Eject Switch Lever, R
Switching Rib
(Spur Gear, 44.8, Eject)
(Spur Gear, 15.2)
(Spur Gear, 16,
Spur Gear, 20
Paper Eject Unit
(Paper Eject Frame
Holder (right))
Spur gear, 32.8
Eject Planetary Unit
(Spur Gear, 17.6, Planetary)
Spur Gear, 28
Combination
Gear, 19.2, 33.6
Spur Gear, 33.6, B
Combination
Gear, 36, 8.8
Figure 2-39. Paper Eject Mechanism Drive Layout
Switching Rib
Spur Gear, 20
(Spur Gear, 15.2)
Spur Gear, 28
Paper Eject Unit
(Paper Eject Frame
Holder (right))
Eject Switch Lever, R
(Spur Gear, 44.8, Eject)
Spur gear, 32.8
Eject Planetary Unit
(Spur Gear, 17.6, Planetary)
Combination
Gear, 19.2, 33.6
Figure 2-40. Paper Eject Mechanism Drive Components
Revision C
Planetary Holder
(Spur Gear, 20,
Planetary Holder
Spur Gear, 16
Planetary
)
PG/PO Motor
Combination
Gear, 13.6, 20.8
Combination
Gear, 11.2, 24
Spur Gear, 21.6,
Transmission Frame
Shaft (Spur Gear, 16,
Frame, Transmission)
Spur Gear, 20
Combination
Gear, 24, 36
Spur Gear, 33.6, B
Combination Gear, 24, 36
Planetary Holder
(Spur Gear, 20,
Planetary
Spur Gear, 16
Transmission Frame
Shaft (Spur Gear, 16,
Frame, Transmission)
Spur Gear, 21.6,
Release
Combination
Planetary Holder
Gear, 36, 8.8
(Spur Gear, 16,
Planetary
)
Planetary
)
Release
)
PG/PO
Motor
Combination
Gear, 13.6,
20.8
Spur Gear,
20
Combination
Gear, 11.2,
24
140
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