Type
Position — from sheet's bottom-left corner
Arrows move 1 mm, with Shift 0.1 mm. You can also drag the text on the sheet.
Sheet placement on A4
Where the real sheet sits inside the A4 the printer prints. Default: horizontally centered (19 mm), top-fed. Calibrate with a test print.
In the print dialog: paper A4, margins None, scale 100%, no headers or footers.