Pg Adjustment - Epson Stylus Photo R3000 Service Manual

Epson Stylus Photo R3000

2.2.4 PG Adjustment

This section describes PG Adjustment.
This adjustment must be performed to secure the specified clearance between the print surface of the Printhead
and paper.
To change the PG position, turn the cam each on the left and right side of the carriage shaft
simultaneously.
 Tools

Adjustment gauge
In this adjustment, use the same adjustment gauge on the left and right sides.
 Do not touch the surface of the adjustment gauge plate with bare hands.
 Before performing this adjustment, clean the adjustment gauge with a soft cloth
moistened with Shipping Cleaning Liquid "CR06" (parts number: 6104713(1kg),
6104714(18kg)).
 Adjustment procedure
 Before starting PG Adjustment, completely wipe drops of ink around the Print Head.
Remaining drops of ink will stick to the continuity measurement point of the adjustment
gauge, and cause continuity before the continuity measurement point 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 three minutes.)
 Move the CR Unit by moving the timing belt.
 Place the printer on a level, warp-free table. PG Adjustment cannot be performed
normally on a warped table.
 Make sure that the Ink Supply Unit and the CR Support Plate are secured when
performing the PG Adjustment.
1. With the following parts removed, install the printer on a level workbench and move the CR Unit to the
center of the printer.

Rear Housing

Left / Right Cover

Left / Right Decoration Plate

Adjust Printer Cover

Upper Housing Support Assy

Upper Housing Assy

CR Cover
Adjustment
Adjustment gauge
plate (top face)
Figure 2-12. Adjustment Gauge
Details of Adjustments (TBD)
Continuity measuring part
Revision A
47
Confidential