AR-5132 (serv.man115). Intermitant F9 Error Codes The Network Card does not Become Enabled at Power Up (PREVIOUSLY SENT OUT AS FF COP 053) - Sharp Copying Equipment Technical Bulletin (repair manual). Page 4

Select the [Terminal] or [ MS Line draw] font, and click [OK]

Select [Call], then [Connect] then [Dial Now] from the menu bar.  On connection the following screen will
be displayed.

You  are now connected to the Sharp BBS, enter  a first name of [Digital], a last name of [Copier], and a
password of [User]. This sign on will allow you to download one file. The welcome screen will then appear,
you should press [C] to continue, the [Enter] to see the main menu screen