HP Deskjet 6127 Color Inkjet Printer - Manual (Page 21)

3. Set the paper width fence by carefully snapping it into the slots for the paper size.
The slots for letter width paper are in the sides of the lower tray. Set the
width to LTR to use legal-sized paper.
1. tilt the fence forward 2. insert the fence into the appropriate slots 3. tilt the
fence back until it snaps into place
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