Ricoh A439 Modification Bulletin AD600

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

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