Chapter 4 Disassembly & Assembly; Pg Position Adjustment - Epson Stylus Pro 3800 Service Manual

Epson Stylus Pro 3800/3800C/3850/3880/3885/3890

5.2.3 PG Position Adjustment

Purpose
Check the platen gap if it is properly adjusted.
Tool
Thickness gauge T = 0.90, T = 1.00
Standard Value
T = 0.90: Carriage can slide over the gauge
T = 1.00: Carriage is blocked by the gauge
Procedure
1. Unlock the carriage unit manually. See "4.3.1 Unlocking the CARRIAGE,
ASSY. manually" (Page 92).
2. Put the thickness gauge on the following location of the platen and move the
carriage unit slowly over the thickness gauge.
Home Position side:
Center:
Opposite to the HP side:1 17th and 19th rib from the right.
Remove the HOUSING, UPPER if it interferes with the checking.
C H E C K
P O I N T See "4.3.3.12 HOUSING, UPPER"
ADJUSTMENT
Third and fifth rib from the right.
Ninth and 12th rib from the right.
(Page 107).
19th
CARRIAGE UNIT
Thickness gauge
Mechanical Adjustment
Thickness gauge
17th 12th 9th
Figure 5-8. Thickness Gauge Set Position
Figure 5-9. PG Height Check
Revision C
5th 3th
220