Field Engineering Bulletin
Digital Color Series
TECHNICAL OPERATIONS
SDC206
-
010
SC106
-
004
BULLETIN
NOaDATE:
8/l
5/97
I
Subject:
MAGENTA BANDING
0
Copy Quality
•l Electrical
0
Mechanical
0
Modification
q
Safety Information
m
Technical Information
q
General Information
Model
-
Product/Serial Numbers Affected
1
Modification
Schedule
SC1
06
SDC206
0
Mandatory
0
Scheduled Visit
0
Next Call
0
Next PM
0
As Necessary
Install Time
Symptom:
Intermittent
/ Random magenta banding across full color copy (front to rear). This banding is most
noticeable in blue
or gray image areas.
Cause:
Bias voltage applied to the magenta development roller is
not consistent due to poor conductivity
between the shaft and the roller bearing / bushing.
Solution:
Install a
conductive
Bearing 6 x
IO
x 3 (P/N
08053496),
flange side in, and Lock Washer
(P/N
H0014219),
tabs out, onto the rear of
the magenta development roller shaft. This effectively creates
two points of bias contact
/
conductivity.
This countermeasure was scheduled to be implemented beginning with July 1997 production.
Note:
Additional details will be reflected in
a
Parts Modification Bulletin.
SAWN CORPORATION
PAGE 1 OF 1
Technical Service Operations
-
333 Ludlow Street, Stamford, Connecticut 06904 -- (203) 967-5000
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