Oki ML520 - Manual (Page 241)

information updates.
Okidata distributes the TSBs through Okilink II. The TSBs are issued monthly.
520
This part is specific to the Microline 520 printer.
521
This part is specific to the Microline 521 printer.
Both
This part is used by both the Microline 520 and Microline 521 printers.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)