warning HP

Error Code 600 dpi problem settings

Issues encountered during print quality adjustments such as dark or light prints with text formatting changes.

? What Causes This

Wrong resolution selection in printer driver leading to alteration of content rendering due to scaling factors.

How to Fix It

Adjust the resolution settings back to default, clean your media input tray. Refer to printer specifications for proper medium handling practices and ensure alignment per manufacturer's guidelines before reprinting.

Source: page 335 of the official manual

From the manual

Manual page 335 — HP error 600 dpi problem settings

This error code appears in:

HP Laserjet 3050 All IN One Printer