HP deskjet 3840 Manuale Utente

10.2  Aligning print cartridges

After installing a print cartridge, align the print cartridges to ensure the best print

quality.
To calibrate the print cartridges:

1. Load letter-size or A4-size plain white paper in the In tray.
2. Open the 

3. Select the Calibrate panel.
4. Click the Align button, and then follow the onscreen instructions.

10.3  Calibrating color

Perform a color calibration only if the colors in photographs printed with the 

Before preforming a color calibration, 

, then reprint your

photograph. If the color is still tinted, then perform a color calibration.
To calibrate color:

1. Load letter-size or A4-size plain white paper in the In tray.
2. Verify that a 

3. Open the 

4. Select the Calibrate Color panel.
5. Follow the onscreen instructions.

10.4  Automatically cleaning print cartridges

If your printed pages are missing lines or dots, or if they contain ink streaks, the print

If the print cartridges are not low on ink, follow these steps to clean the print

cartridges automatically:

1. Open the 

2. Select the Clean panel.
3. Click the Clean button, and then follow the onscreen instructions.

Caution: Clean print cartridges only when necessary. Unnecessary cleaning

wastes ink and shortens the life of the cartridge.

HP Deskjet 3840 series printer User's Guide

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