EPSON Stylus Pro 4400/4450/4800/4880/4880C
Revision C
Operating Principles
Printer Mechanism Components
144
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
. (Refer to " Transmission of Drive to
for information on switching the drive transmission
path.)
Movement for PG/PO Motor drive switched to the release mechanism side is
shown below.
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.
Figure 2-48. Release Mechanism Movement
Table 2-13. PG/PO Motor Rotation Direction and Function
PG/PO Motor Rotation Direction
Function
Clockwise
Paper release
Counterclockwise
Paper pressure
Paper Release
Sub Roller
Gate Roller
Intermediate
Roller
Paper
Location of
Pressure
Contact
Paper Pressure
Summary of Contents for Stylus Pro 4800 Portrait Edition
Page 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 113: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 156: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 200: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 366: ...C H A P T E R 5 ADJUSTMENT ...
Page 448: ...C H A P T E R 6 MAINTENANCE ...
Page 457: ...C H A P T E R 7 APPENDIX ...