Page 1
MODIFICATION BULLETIN NO. 4 Page 1 of 2 ISSUED ON: Feb. 15, ’91
Model Duplex Unit for Cosmos-1 Volt/Hz
Modified Article Entrance Relay Roller
Reason for
To improve reliability and durability of entrance relay roller
Modification
Date of
Modification
Under high humidity and high temperature conditions, individual rollers on the entrance relay roller assembly sometimes
slip off the shaft. To improve the reliability and durability of the entrance relay roller, the mat erial of the rollers has been
changed from ester rubber to ether rubber. The interchangeability is X/O.
Page Index Old P/N New P/N Description
5 7 59192078 AF023005 Entrance Relay Roller
Serial Number
T. Ito, Manager
Copier Tchnical Sapport
Page 2
MODIFICATION BULLETIN NO. 4 Page 2 of 2 ISSUED ON: Feb. 15, ’91
MODEL NAME
RICOH AD600 115/60 USA, CANADA A439-17 228101XXXX
INFOTEC DUPLEX UNIT 5020 220,240/50 EUROPE A439-26 375011XXXX
RICOH AD600 220,240/50 EUROPE, etc. A439-27 228101XXXX
V/Hz DESTINATION CODE SERIAL NUMBER
Page 3
MODIFICATION BULLETIN NO. 5 PAGE 1 OF 2
ISSUED ON: April 15, ’94
Model Duplex unit for Cosmos - 1 Volt/Hz
Modified Article LED Sensor Type - T
Reason for
Parts standardization
Modification
Date of
Modification
Serial Number
Due to parts standardization with the other products, the follo wing parts have been changed. The interchangeability is O/O.
Old P/N New P/N Description Q’ty Used
52055251 LED Sensor Type - T
AW020041 Photointerruptor
1 → 0
0 → 1
Index No. Page
Parts Catalog
43 5
43 5
S. Hamano, Assistant General Manager
Technical Support Department
Page 4
MODIFICATION BULLETIN NO. 5 PAGE 2 OF 2
ISSUED ON: April 15, ’94
MODEL NAME
RICOH AD600 115/60 USA, CANADA A439-17
INFOTEC DUPLEX UNIT 5020 220,240/50 EUROPE A439-26
RICOH AD600 220,240/50 EUROPE, etc. A439-27
V/Hz DESTINATION CODE SERIAL NUMBER
Page 5
MODIFICATION BULLETIN NO. 6 PAGE 1 OF 2
ISSUED ON: September 30, ’94
Model Duplex Unit for Cosmos - 1 Volt/Hz
Modified Article Cushion - Motor
Reason for
To standardize with other models
Modification
To standardize with other models, the part number of the following part has been modified.
Inter-
Old P/N New P/N Description Q’ty Used
AA161014 AA161104 Cushion - Motor
3 → 3
change-
ability
O/O 36 7
Date of
Modification
Parts Catalog
Index No. Page
Serial Number
S. Hamano, Assistant General Manager
Technical Support Department
Page 6
MODIFICATION BULLETIN NO. 6 PAGE 2 OF 2
ISSUED ON: September 30, ’94
MODEL NAME
RICOH AD600 115/60 USA, CANADA A439-17
INFOTEC DUPLEX UNIT 5020 220,240/50 EUROPE A439-26
RICOH AD600 220,240/50 EUROPE, etc. A439-27
V/Hz DESTINATION CODE SERIAL NUMBER
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