Service manual

EPSON Stylus Photo R340/350 Revision A
Disassembly and Assembly Disassembly 83
 Reinstalling the CR Scale
z Make sure that the Extension Spring 3.289 is not twisted.
z The cut corner of the left edge of the CR Scale should face
upward.
Figure 2-76. Reinstalling the CR Scale (1)
z Make sure to reinstall the CR Scale so that it runs through
the slit of the CR Encoder Sensor.
Figure 2-77. Reinstalling the CR Scale (2)
 Reinstalling the CR Guide Plate
z Tighten the screws in the order shown in Figure 2-68.
 Reinstalling the CR Shaft Left Fixed Spring
z Put the CR Shaft Left Fixed Spring on the CR Guide Shaft
and secure the spring with the two tabs ( ) of the Main
Frame.
Figure 2-78. Reinstalling the CR Shaft Left Fixed Spring
Cut Corner
CR Encoder
Sensor
CR Scale
Hook Tabs
CR Shaft Left Fixed
Spring
Left Side of the Printer
A D J U S T M E N T
R E Q U I R E D
 Whenever any of the following parts are replaced, be sure to
lubricate them with the specified oil. (See Chapter 4 for details
on the lubrication)
z Left or Right CR Cam
z CR Guide Shaft
z Left or Right Scale Holder
z Driven Pulley Assy.
z CR Guide Plate
z Head Grounding Plate
 Whenever the Carriage Unit or the CR Guide Shaft is
reinstalled or replaced, be sure to perform the required
adjustments in the order given below.
(See Chapter 3 for details on the adjustments)
1. PG adjustment
2. First Dot adjustment
3. PW Sensor adjustment
4. Head Angle adjustment (only when the Carriage Unit is
reinstalled or replaced)
5. Bi-D Adjustment
6. Offset Input for CR Motor Calorific Limitation
(only when the Carriage Unit is replaced)
 Whenever the PW Sensor is reinstalled or replaced, be sure to
perform the required adjustment shown below.
(See Chapter 3 for details on the adjustments)
z PW Sensor adjustment