Epson Stylus Photo R1900 Service Manual page 146

EPSON Stylus Photo R1900/R2880/R2000
5.2.2.1 PG Adjustment Method
 Before starting PG adjustment, completely wipe drops of ink
C A U T I O N
around the Print Head. Remaining drops of ink will stick to the
continuity measurement portion of the Adjustment Gauge, and
generate continuity before the continuity measurement portion
makes contact with the metal frame around the Print Head,
interrupting accurate PG Adjustment.
 As the ink in the Print Head may stick fast and damage the
Print Head during PG Adjustment, make the continuity time
detected with a tester as short as possible. (Maximum 3
minutes)
1. Install the printer on a level base.
Place the printer on a level, warp-free table. Normal PG
C A U T I O N
Adjustment cannot be performed on a warped table.
2. Connect the Tester to the printer frame and Adjustment Gauge.
Tester
Figure 5-4. Connecting the Tester
Adjustment
3. Load unused Ink Cartridges of all colors into the Carriage Unit.
4. Loosen the screw that secures the Parallelism Adjust Bushing.
5. Turn the Parallelism Adjust Bushing upward to match the frame edge and the
bottom of the Parallelism Adjust Bushing gear.
C A U T I O N
Parallelism Adjust
Frame
Adjustment Gauge
Adjustment
When the Parallelism Adjust Bushing is turned upwards, the frame
rises up and PG narrows. Make sure that the frame does not come
into contact with the Print Head when performing the following
procedure.
Positioning
Bushing
Point
Screw
Figure 5-5. Setting the Parallelism Adjust Bushing
Revision E
Parallelism Adjust
Bushing
Positioning Point Screw
146
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