Adjustment Method; Adjustment Gauge; Connecting The Tester; Pg Adjustment - Epson Stylus Photo R1800 Service Manual

EPSON Stylus Photo R1800/R2400

5.2.2 PG Adjustment

When any of the following parts has been removed or replaced, this adjustment
must be performed to secure the specified clearance between the print surface
of the Print Head and paper.
Print Head
Carriage Unit
Carriage Shaft
Parallelism Adjust Bushing (Including the case when just moved it)
In this adjustment, use the same Adjustment Gauge on the left and right sides.

Adjustment Gauge

Figure 5-3. Adjustment Gauge
Do not touch the Adjustment Gauge Plate surface with
C A U T I O N
bare hands.
If the Adjustment Gauge Plate surface is stained by ink
or, etc wipe it with a soft cloth.
Adjustment
Continuty
Plate (Top face)
Measuring Point
5.2.2.1 PG Adjustment Method
Before starting PG adjustment, completely wipe drops of
C A U T I O N
ink 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
Revision B
Frame
Adjustment Gauge
139