Lexmark 91E, 901, 90E Cannot send faxes, Make Sure to Enter Your User Information in the Printer

Troubleshooting 159

Check the cable connections for the following hardware, if applicable:

Power supply Answering machine Cable modem Splitter

Telephone VoIP adapter DSL filter RJ‑11 adapter

•If the printer is connected to a Digital Subscriber Line, then make sure you are using a DSL filter for the printer.

•If the printer is connected to a VoIP adapter or cable modem, then make sure that the printer is plugged into the first phone port.

•If you are using a splitter, then make sure that you are using a phone splitter. Do not use a line splitter.

Cannot send faxes

If the “Fax troubleshooting checklist” does not solve the problem, then try one or more of the following:

MAKE SURE TO ENTER YOUR USER INFORMATION IN THE PRINTER

If you did not enter your user information during initial setup, then enter your fax name and fax number. This is the information that identifies you as the sender in all the faxes that you send. Some countries or regions require the fax number and fax name for you to send a fax, and some fax machines block anonymous faxes.

REDUCE THE TRANSMISSION SPEED OF THE FAX MODEM

The modem of the printer can send and receive data up to at 33,600 bps. However, it is not necessary to set the modem to its fastest transmission capability. The speed of the modem of the receiving fax machine must match or be greater than the speed at which you are sending your fax. Otherwise, your fax will not be received.

1From the home screen, navigate to:

> Fax Setup > Dialing and Sending > Max Send Speed

2Select a sending speed, and then touch Accept.

ENABLE ERROR CORRECTION

Errors and blurs may appear in the faxed document if there is too much noise on the line. This feature enables the printer to transmit the bad blocks of data again and correct the errors. When a fax has too many errors, the fax may be rejected by the receiving fax machine.

From the home screen, navigate to:

> Fax Setup > Dialing and Sending > Error Correction > On > Accept

ENABLE AUTOMATIC FAX CONVERSION

If the receiving fax machine does not support color fax, then this option automatically converts the outgoing color fax to black and white. It also automatically reduces the resolution of the fax to a resolution that the receiving machine can support.

From the home screen, navigate to:

> Fax Setup > Dialing and Sending > Auto Fax Convert > On > Accept