Epson 300 - Manual (Page 52)

Aligning the Print Head
If you notice a misalignment of vertical lines, you may be able
to solve this problem from your computer using the Print Head
Alignment utility.
1. Make sure paper is loaded in the sheet feeder.
c
Caution:
Use paper at least 210 mm (8.27 inches) wide; for example,
A4 size paper loaded short edge first. Otherwise, the print
head will spray ink directly onto the platen.
2. Access the printer driver as described in Chapter 3, then
click the Utility tab at the top of the printer software
window.
3. Click the Print Head Alignment button.
4. Follow the messages on your screen to align the print head.
L
Hudson ++ Ref. Guide
Rev.d
A5 size Chapter 5
04-28-98 DR, pass 2
5-8 Maintenance and Transportation