Epson Stylus Pro 4400 - Release Mechanism Movement

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 Figure 2-45. (Refer to
" Transmission of Drive to
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.
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