HP J6400 manual Send a fax in Error Correction Mode, Change the Lighter / Darker setting

Chapter 7

Change the Lighter / Darker setting

You can change the contrast of a fax to be darker or lighter than the original. This feature is useful if you are faxing a document that is faded, washed out, or handwritten. You can darken the original by adjusting the contrast.

NOTE: The Lighter / Darker setting applies to black-and-white faxes only, not color faxes.

When you exit the Fax menu, this option returns to the default setting unless you set your changes as the default.

To change the Lighter / Darker setting from the device control panel

1.Load your originals. For additional information, see Load originals.

2.In the Fax area, press Fax Menu. The Enter Number prompt appears.

3.Enter the fax number by using the keypad, press Speed Dial or a one-touch speed dial button to select a speed dial, or press Redial/Pause to redial the last number dialed.

4.In the Fax area, press Fax Menu repeatedly until Lighter / Darker appears.

5.Press to lighten the fax or press to darken it, and then press OK. The indicator moves to the left or right as you press an arrow button.

6.Press START FAX Black.

If the device detects an original loaded in the automatic document feeder, it sends the document to the number you entered.

Set new default settings

You can change the default value for the Resolution and Lighter / Darker settings through the device control panel.

To set new default settings from the device control panel

1.Make changes to the Resolution and Lighter / Darker settings.

2.In the Fax area, press Fax Menu repeatedly until Set New Defaults appears.

3.Press until Yes appears, and then press OK.

Send a fax in Error Correction Mode

Error Correction Mode (ECM) prevents loss of data due to poor phone lines by detecting errors that occur during transmission and automatically requesting retransmission of the erroneous portion. Phone charges are unaffected, or might even be reduced, on good phone lines. On poor phone lines, ECM increases sending time and phone charges, but sends the data much more reliably. The default setting is On. Turn ECM off only if it increases phone charges substantially, and you can accept poorer quality in exchange for reduced charges.

Before turning the ECM setting off, consider the following. If you turn ECM off

•The quality and transmission speed of faxes you send and receive are affected.

•The Fax Speed is automatically set to Medium.

•You will no longer be able to send or receive faxes in color.

56 Fax