Cannot Receive a Fax
Troubleshoot by checking the following steps when [Cannot print RX data.] is displayed on the screen:
Step 1: Checking the Remaining Amount of Toner in the Toner Cartridges
If the remaining amount of toner in the toner cartridges is low, the received data may be saved to the memory of the machine without being printed to prevent printing text that is difficult to read or images that are difficult to see.
Step 2: Checking the Fax Reception Environment
Are You Receiving a Fax via an Optical Line?
The machine conforms to analog line standards, and receiving of faxes via optical line cannot be guaranteed. You may be able to perform operations via optical line, so see the following:
Cannot Send or Receive a Fax via Optical LineAre You Receiving a Fax from a Fax Information Service?
If so, perform the following operations according to the type of telephone line connected to the machine.
When Using a Tone Dialing Line
Configure the type of telephone line manually, and then call your service provider.
Log in to Remote UI  [Settings/Registration]  [TX Settings]  [Fax TX Settings]  [Edit]  in [Select Line Type], select [Tone]  [OK] |
On the control panel, select [Menu] in the [Home] screen, and then select [Function Settings] to configure the settings.
[Select Line Type]When Using a Pulse Dialing Line
After calling your service provider, press

(Tone) on the numeric keys, and then enter the number to receive service.
* If you do not know the type of telephone line, contact your telephone company.
Step 3: Free Up Memory on the Machine