Epson CR-420i Product Support Bulletin

EPSON
EPSON AMERICA, INC.
SERVICE
PSB NO.: P-0037
CR-420
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.
If the rack is not installed and grounded properly, the
static build up could cause problems. Page 2 shows the parts that
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
The "static ground brushes", which are not shown, are located on
through
upper case. The "paper rack" is then grounded to the "lower case"
through the "ground wire" at junction "A".
PARTS LIST
DESCRIPTION
-------------------------------
Power Cord Set
Ground wire
Printer Cover
Upper Case Unit
Paper Rack
Paper Roller Unit
Lower Case Unit
S-59
S-90
W-14
Paper Rack
Mounting Units
EPSON AMERICA
P
RODUCT
DATE:12/19/88
ANTI-STATIC
parts.
the "rack mounting units", on either side of the
PART NUMBER
84101-5351U
84100-5170
Unit 84100-2002U2
84100-2001U1
84100-2070
84100-2078U
84101-2003U
84001-4028
84100-2127
84003-4003
N/A
SERVICE, 23610
S B
ULLETIN
UPPORT
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