Adjustment Except Adjustment Program; Pg Adjustment - Epson Stylus Photo R220 Service Manual

EPSON Stylus Photo R220/R230

3.3 Adjustment Except Adjustment Program

This section explains the adjustments other than those made by the 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
Bushing, Parallel Adjust, Left (Right)
(Including when having moved the position of the Bushing Parallel Adjust, Left
(Right))
ADJUSTMENT
[Adjustment Procedure]
1. Make both sides of the two Thickness Gauge (1.15mm and 1.31mm) clean by
wiping with Bemcot with a little alcohol.
2. To make the PG position negative (-), turn the gear of the APG Assy. and match
the flag center of the Cam, CR, Right with the PG Sensor.
Gear of the APG Assy.
3. Match the 0 position (Hole point of gear) of the Bushing, Parallel Adjust, Left
(Right) with the rib of the Main Frame.
Bushing, Parallel Adjust, Left
4. Move the Carriage Unit to the centre of the printer and remove the Lever,
Cartridge. Then, set the PG-Adjustment Dummy Cartridge or new one.
Adjustment Except Adjustment Program
Cam, CR, Right
Figure 3-5. Setting PG Position
Ribs
Ribs
Hole point
Hole point
Figure 3-6. Setting the Bushing, Parallel Adjust
Revision A
Flag
PG Sensor
Bushing, Parallel Adjust, Right
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