Epson 24-PIN DOT MATRIX PRINTER LQ-570+ - Manual (Page 49)

4. Slide the left sprocket unit using the scale on the printer as a
guide. The printer prints to the right of the position
marked 0. Push the sprocket lock lever back to lock the
sprocket unit in place. Then slide the right sprocket unit to
match the width of your paper, but do not lock it in place.
Move the paper support so it is midway between the
5. if you are paper in front paper remove the
cover and slide the edge guide completely to the left.
6 .