TA Triumph-Adler P-3020 MFP - Manual (Page 327)

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Default Setting (System Menu)
6 Press the OK key. A confirmation screen appears.
7 Press [Yes] (the Left Select key). Completed. is
displayed and the screen returns to the Service Setting
menu.
DP Adjustment
DP Adjustment is primarily a menu option used by service personnel for maintenance work. There is no need for
customers to use this menu.
New Developer.
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