EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Operating Principles Printer Mechanism Components 131
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" (p.21).
Figure 2-24. Carriage Components: Cutter Solenoid
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.
Figure 2-25. Paper Feed Mechanism
Actuating Plate
Lock Lever for Transportation
Cutter Solenoid
Kicker
CR Lock
Cutter
PF Motor
Paper Eject Roller
Driven Roller Unit
PF Roller
Sub Roller Unit
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