T
echnical
B
ulletin
PAGE: 2/6
Reissued:3-Jul-13
Model:
Taurus-C1a/C1b (D074/D075)
Date:
25-Jan-13
No.:
RD074099a
2. Explanation of each modification
2-1. Anti-fluctuation (latest modification) – D0742304
Several components were modified to enhance the stability of the doctor gap and
position gap.
Modification purpose
To counter 50mm pitch banding
Modification overview
The following diagram shows the modified points.
[A] Reduced play
[B] Reinforced housing
[C] Increased doctor gap
Modification details
[A] Reduced play between the development roller bearing and housing
The bearing that holds the development roller was slightly increased in its diameter
to fit more tightly with the housing. This enables the development roller to rotate
more precisely on its axis and reduce fluctuation.
Dev Roller
[B]
Dev Roller
Drum Motor
Dev Motor
[A]
[C]
Mainframe
OPC Drum