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Turn ECM off only if it increases phone charges substantially, and you can accept
poorer quality in exchange for reduced charges.
The following rules apply to ECM:
● If you turn ECM off, this applies only to faxes that you send. This does not apply to
faxes that you receive.
● If you turn ECM off, set the Fax Speed to Medium. If the Fax Speed is set to Fast,
the fax will automatically be sent with ECM on. For information on changing the Fax
Speed, see Set the fax speed.
● If you send a fax in color, the fax will be sent with ECM on, regardless of the option
currently set.
To change the ECM setting from the control panel
1 Press Setup.
2 Press 5, and then press 6.
This displays the Advanced Fax Setup menu and then selects Error Correction
Mode.
3 Press
to select Off or On.
4 Press OK.
Set the fax speed
You can set the fax speed used to communicate between your HP all-in-one and other
fax machines when sending and receiving faxes. The default fax speed is Fast.
If you use one of the following, setting the fax speed to a slower speed might be
required:
● An Internet phone service
● A PBX system
● Fax over Internet Protocol (FoIP)
● An integrated services digital network (ISDN) service
If you experience problems sending and receiving faxes, you might want to try setting
the Fax Speed setting to Medium or Slow. The following table provides the available
fax speed settings.
Fax speed setting
Fax speed
Fast v.34 (33600 baud)
Medium v.17 (14400 baud)
Slow v.29 (9600 baud)
To set the fax speed from the control panel
1 Press Setup.
2 Press 5, and then press 7.
This displays the Advanced Fax Setup menu and then selects Fax Speed.
3 Press
to select an option, and then press OK.
Chapter 11
122 HP Photosmart 2600/2700 series all-in-one
Use the fax features