HP Designjet 2500.3500cp Printer series - Manual (Page 211)

Maintaining Your Printer
Lens Maintenance
10-5
9 Making sure that you do not touch the glass portion of the lens cover, install the new
lens cover into the slot. Make sure the cover is firmly in place.
10 Press the
↓
key on the front panel. You have finished replacing the lens cover.
11 Close the printer window.
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