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Epson Stylus Photo R340 Service Manual: Adjustment Except Adjustment Program; Pg Adjustment

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EPSON Stylus Photo R340/350

3.3 Adjustment Except Adjustment Program

Following is adjustment except Adjustment Program.

3.3.1 PG Adjustment

[Purpose]
This adjustment is required when removing or replacing the following parts/units in
order to secure the specified space between the print-side of the Print Head and the
paper.
Carriage Unit
CR Guide Shaft
Left (Right) Parallel Adjust Bushing
(Including when having moved the Left (Right) Parallel Adjust Bushing)
Adjustment
[Adjustment Procedure]
1.
Make both sides of the two Thickness Gauge (1.30mm and 1.46mm) clean by
wiping with Bemcot with a little alcohol.
2.
To make the PG position minus (-), turn the gear of the APG Assy. and match the
flag centre of the Right CR Cam with the PG Sensor.
Gear of the APG Assy.
3.
Match the 0 position (Hole point of gear) of the Left (Right) Parallel Adjust
Bushing with the rib of the Main Frame.
Left Parallel Adjust Bushing
4.
Move the Carriage Unit to the centre of the printer and remove the Cartridge
Lever. Then, set the PG-Adjustment Dummy Cartridge.
Adjustment Except Adjustment Program
Right CR Cam
Figure 3-6. Setting PG Position
Ribs
Ribs
Hole point
Hole point
Figure 3-7. Setting Parallel Adjust Bushing
Revision A
Flag
PG Sensor
Right Parallel Adjust Bushing
108

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