Check with the other party and send the document to a G3 fax machine . If the other party does not have a G3 fax machine, try sending the document using a transmission mode the other party's fax machine supports.
This will occur if there are multiple lines and telephone jacks in the same location. Or if the telephone jack is wired for two lines. For example, line one is to be used for voice calls and line two is to receive faxes. Disconnect the fax machine from the telephone wall jack. Connect a known functioning single-line telephone directly to the telephone wall jack.
When to Replace the Cartridge The cartridge is a consumable item and should be replaced when the toner runs out. The following guidelines will help you to determine when to replace the cartridge.
Cleaning the unit When cleaning the machine's exterior or the platen glass, be sure to disconnect the power cord before cleaning the machine. For the model with the fax function, print any received faxes stored in the memory before disconnecting the power cord.