Epson CR-420i Quick Reference Guide
EPSON
EPSON AMERICA, INC.
SERVICE
PRODUCT SUPPORT
BULLETIN
PSB
NO.:
P-0037
SUBJECT: CR-420 ANTI-STATIC
Reports from the field have suggested that some paper jams and
circuit board damage is being caused by static build up, possibly
due to incorrect installation or non-use of the paper rack.
In order to prevent static build up it is essential that certain
parts of the printer are properly installed. Moreover, the A/C
outlet must be the 3 prong type and grounded. The paper rack
provides a discharge path for the static charge that accumulates on
the paper.
static build up could cause problems.
need to be connected to have a complete ground path for static
build up. Use the part numbers listed below if there is a need for
replacement parts.
The "static ground brushes", which are not shown, are located on
Q;k!nner
through the "rack mounting units", on either side of the
upper case. The "paper rack" is then grounded to the "lower case"
through the "ground wire" at junction "A".
If the rack is not installed and grounded properly, the
side of the "printer cover". They connect to the "paper
DATE:12/19/88
PAPER SETUP
Page 2 shows the parts that
PAGE: 1 of 2
PARTS LIST
DESCRIPTION PART NUMBER
------------------------------Power Cord Set
Ground wire
Printer Cover Unit 84100-2002U2
Upper Case Unit
Paper Rack
Paper Roller Unit
Lower Case Unit
S-59
S-90
W-14
Paper Rack
Mounting Units
84101-5351U
84100-5170
84100-2001U1
84100-2070
84100-2078U
84101-2003U
84001-4028
84100-2127
84003-4003
N/A
EPSON AMERICA SERVICE, 23610 TEL0 AVENUE, TORRANCE, CALIF. 90505
NUMBER:
P-0037
PAGE:
Paper Rack
2 of 2
Wire
Paper grounding brushes
are located on the inner
side of the printer cover.
All the parts in this
drawing are essential
and must be engaged to
ensure proper static
discharge.
Upper Case Unit
Lower Case Unit
aper Rolle
‘r
Unit
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