If your printouts contain misaligned vertical lines, or you see light or dark horizontal banding, you may need to align the print head.
Note: Banding may also occur if your cartridges are low on ink or you need to clean the print head.
Macintosh OS X: Open the Applications folder and double-click the EPSON Printer Utility icon. Select C84 Series in the printer list, click OK, and select Print Head Alignment.
Macintosh OS 8.6 to 9.x: From the File menu, select Page Setup or Print. Click the Utility button, then click the Print Head Alignment button.
If you can't find a pattern without any vertical lines, select the best pattern and click Realignment. Then repeat this step.
If you can't find a pattern without any vertical lines, select the best pattern and click Realignment. Then repeat this step.
If you can't find an aligned pattern, choose the best pattern and click Realignment. Then repeat this step.
If you can't find an aligned pattern, choose the best pattern and click Realignment. Then repeat this step.