Release Mechanism Movement - Epson Stylus Pro 4400 Service Manual
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EPSON Stylus Pro 4400/4450/4800/4880/4880C
RELEASE MECHANISM MOVEMENT
When the drive transmission path of the PG/PO Motor is switched by carriage
movement, the driving force of the PG/PO Motor is transmitted to the Gate
Roller by the path shown in
Figure
Paper Eject Unit"
(p.141)
for information on switching the drive transmission
path.)
Movement for PG/PO Motor drive switched to the release mechanism side is
shown below.
Table 2-13. PG/PO Motor Rotation Direction and Function
PG/PO Motor Rotation Direction
Clockwise
Counterclockwise
Note : Rotation of the motor in the clockwise direction as seen from the Motor Pinion
Gear is considered "clockwise".
Paper Release
When the PG/PO Motor rotates in the clockwise direction, the Intermediate
Roller (Shaft, Release, Lower) rotates in the clockwise direction. The Gate
Roller is lowered by the rotation of the Intermediate Roller and the Gate
Roller and Sub Roller are separated.
Paper Pressure
When the PG/PO Motor rotates in the counterclockwise direction, the
Intermediate Roller rotates in the counterclockwise direction. The Gate
Roller is raised by the rotation of the Intermediate Roller and the Gate
Roller and Sub Roller have pressure contact.
Paper Release
Sub Roller
Paper
Gate Roller
Figure 2-48. Release Mechanism Movement
Operating Principles
2-45. (Refer to " Transmission of Drive to
Function
Paper release
Paper pressure
Paper Pressure
Location of
Pressure
Contact
Intermediate
Roller
Printer Mechanism Components
Revision C
144
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