Epson Stylus Color 1520 Service Manual

Operating Principles
Rev. A
2-11
2.2.6.1 Pump Mechanism
1. Switching operation from the paper feed mechanism to the pump mechanism
The PF motor also functions as the pump motor by the switching operation of the PF motor drive
disengage mechanism. When the CR unit returns to the home position, the switch lever in the CR
unit pushes the cam lever. Then the disengage gear switches the torque from the ASF to the pump
mechanism via the gear train. Figure 2-11 illustrates how the torque is transmitted from the paper
feed mechanism to the pump mechanism.
PF Motor Drive Disengage Mechanism
Switch Lever
(CR)
Release Cam Set Lever
ASF Transmission Gear set Lever
Release Lever
Release Cam
Switch Lever (CR)
PF Motor Drive Disengage Mechanism
Disengage Gear
Torsion Spring
The direction in which the CR moves.
Figure 2-10. Release Cam Reset
CR Unit
PF Motor Pinion Gear
PF Motor
Disengage Gear
Switch Lever
Release Cam
Pump Mechanism
Figure 2-11. Paper Feed Mechanism Function

Epson Stylus Color 1520 Specifications

General

Color	Yes
Maximum resolution	600 x 1200 DPI
Print speed (black, normal quality, A4/US Letter)	- ppm
Maximum input capacity	100 sheets
Envelopes sizes	10, C5, DL
Standard media sizes	4\
Paper tray media types	Envelopes, Labels, Plain paper
Non-ISO print media sizes	Legal
ISO A-series sizes (A0...A9)	A4
ISO B-series sizes (B0...B9)	B5
Power requirements	120V AC, 50/60 Hz
Printing noise level	45 dB
Maximum operating temperature range (T-T)	-20 - 60 °C
Market positioning	Home & office