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HP Officejet 4200 Series - Enabling or Disabling Error Correction Mode (ECM)

Introduction
This document describes how to change the Error Correction Mode (ECM) setting on the following products:
  • Officejet 4212
  • Officejet 4215, Officejet 4215v, Officejet 4215xi
  • Officejet 4219
  • Officejet 4255
Noise in the phone line, or a low signal strength during fax transmission can result in intermittent fax failures. Noise or poor signal strength can cause all, or part of the fax information to be lost during transmission. When the Error correction mode is turned on, the receiving fax checks the fax information for errors during reception. If an error is detected, the receiving fax would request that the sending fax resend all, or part of the fax information. Sending all or part of the information again would make the transmission time longer, but would make sure that the quality of the received fax is good. If the phone line quality or signal strength is poor, too many errors can occur, and the fax transmission can fail.
Turning off the Error correction mode can improve the ability of the fax to send a fax successfully when the phone line quality is poor. However, the image quality of the received fax might be poor.
ECM should be turned on under normal conditions. If ECM must be turned off to send faxes successfully, have the phone service provider check the phone line quality. For an HP fax, turning off ECM from its front panel does not necessarily mean that the fax transmission would not use ECM. The ECM would or would not be used as follows.
  • All faxes sent in color would use ECM.
  • All faxes sent at the highest transmission speed would use ECM.
  • The ECM setting affects only faxes sent, not the received ones.
  note:
Change your product's Fax Speed setting to "Medium" or "Low" if you want to send faxes without ECM.
Enabling or Disabling ECM
To enable or disable ECM from the front panel, perform the following steps:
  1. Press Setup.
  2. Press the Right arrow (>) repeatedly until Advanced Fax Setup displays.
  3. Press OK.
  4. Press the Right arrow (>) repeatedly until Error Correction Mode displays.
  5. Press OK. Error Correction OFF or Error Correction ON displays.
  6. Press the Right arrow (>). OFF or ON displays.
  7. Press OK.
  8. Send another fax to verify that the ECM is enabled or disabled.

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