savm.
Field Engineering Bulletin
Digital Color Series
TECHNICAL OPERATIONS
SC106
-
004
BULLETIN NO.
SDC206
-
004 DATE:
8/15/97
I
Subject: MAGENTA BANDING
I
0
Copy Quality
Model
-
Product/Serial Numbers Affected
Modification
Schedule
cI
Electrical
I
SC106
0
Mandatory
q
Mechanical
q Scheduled Visit
El
Modification
SDC206
q
Next Call
0
Safety Information
c]
Next PM
1
Technical Information
0
As Necessary
q General Information
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 10 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.
Note: This countermeasure was scheduled to be implemented beginning with July 1997 production.
Additional details will be reflected in a Parts Modification Bulletin.
SAWN CORPORATION
Technical Service Operations --
333 Ludlow Street, Stamford, Connecticut 06904 --
(203)
967-5000
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