Paper Feed Mechanism; Cutter Solenoid/Cr Lock Mechanism; Carriage Components: Cutter Solenoid - Epson Stylus Pro 4400 Service Manual

EPSON Stylus Pro 4400/4450/4800/4880/4880C

2.2.4.3 Cutter Solenoid/CR Lock Mechanism

Installed on the front of the Carriage Unit, this is a DC solenoid for controlling
cutter pressure of the cutter used for roll paper cutting.
In addition, the CR Lock Mechanism is used jointly so that when the Carriage
Unit moves from the printing area further to the right of the capping position
(CR_Home), the lock activates to prevent Carriage Unit movement. When the
Cutter Solenoid turns ON with the Carriage Unit at capping position, the Cutter
Solenoid attracts the Actuating Plate of the CR Lock releasing Kicker, the
Kicker kicks the CR Lock, and then the CR Lock is released. The printer is also
equipped with the mechanism to lock the Carriage Lock to prevent the Kicker
from moving vertically during transportation to release the CR Lock.
NOTE: Refer to "1.2.7.4 Cut Specification"
Cutter
Lock Lever for Transportation
Figure 2-24. Carriage Components: Cutter Solenoid
Operating Principles
(p.21).
Actuating Plate
Kicker
Cutter Solenoid
CR Lock
Printer Mechanism Components

2.2.5 Paper Feed Mechanism

This printer uses friction feed to carry out highly precise feeding of roll paper
and cut sheets, and comprises a unique paper feed mechanism.
The paper feed mechanism is formed of the PF Motor, PF Roller, Sub Roller
Unit, Driven Roller Unit and Paper Eject Roller.
Paper feed mechanism main components and their functions are described
below.
Driven Roller Unit
PF Motor
Paper Eject Roller
Figure 2-25. Paper Feed Mechanism
Revision C
PF Roller
Sub Roller Unit
131