The machine is displaying SC670. I have tried the two methods from the service manual on page 83.
There are two ways to enter the service
mode.
Method 1: Turn the machine on while
pressing the "On Line" key and "Escape"
key together until "1. Service Menu1"
appears on the display.
NOTE: If you switch the machine off, any
jobs stored on the hard disk using
the sample print and protected print
features will be deleted.
Check first with the user tools to
see if there are any jobs stored with
these features
(Menu key - Sample Print, or
Protected Print).
Method 2: Press the "Up/Down arrow" keys
together for about 5 seconds, then press
the "Enter" key.
"1. Service Menu1" appears on the display.
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