Oki B721 Maintenance Manual

Oki Data CONFIDENTIAL
45487001TH Rev.1
6-76 /
6. Troubleshooting procedure
6.5.5.1.4 Confirm encryption strength of a printer
Version display of the browser that is confirmed by section "6.5.5.1.3 Check version
number of the Web browser" has description on encryption strength of the browser. The
browser in which the encryption strength is not set to 128 bits, the browser cannot establish
communication with the printer in which the encryption strength is not set to "Standard".
Either, upgrade the browser until it supports 128 bits (high encryption) or set the printer
encryption strength to "Weak".
Solution: Set the encryption strength to "Weak".
How to change encryption strength with Telnet
Note! Telnet cannot be used if it remains in the default setting. To change the
encryption strength, Telnet must be set to Enable.
Select the command prompt (DOS prompt) and enter "Telnet <printer IP address>", and
press Return.
Establish connected using administrator user name and password
Select the menus in this order: [4: Security Config] [5: Cipher (SSL/TLS)] [2:
Cipher Strength]. Then, change the cipher strength as desired (1: Strong, 2: Standard, 3:
Weak).

Oki B721 Specifications

General

Print Technology	LED
Resolution	1200 x 1200 dpi
Processor	533 MHz
Memory	256 MB
Connectivity	USB, Ethernet
Duplex Printing	Standard