Brother International MFC-7160C Users Manual - English - Page 34

19 M F C S E T U P A N D C O N N E C T I O N S s Once you open an ink cartridge, install it in the MFC and use it up within six months of installation. Use unopened ink cartridges by the expiration date written on the cartridge package. s DO NOT refill the ink cartridges. Attempting to use refilled cartridges may cause damage to the print head and will void your warranty. If the INK EMPTY error message is on the screen display after you have installed the ink cartridges, check and make sure that the ink cartridges are installed correctly. Special Line Considerations Roll Over Phone Lines A roll over phone system is a group of two or more separate telephone lines that pass incoming calls to the next available line. The calls are usually passed down or "rolled over" to the next available phone line in a preset order. Your MFC can work in a roll over system as long as it is connected to the last number in the sequence, so the call cannot roll away. Do not put the MFC on any of the other numbers; when the other lines are busy and a second fax call is received, the fax call is transferred to a line that does not have a fax machine. Your MFC will work best on a dedicated line. See Easy Receive p. 44 Two-Line Phone System A two-line phone system is nothing more than two separate phone numbers on the same wall outlet. The two phone numbers can be on separate jacks (RJ11) or combined into one jack (RJ14). Your MFC must be plugged into an RJ11 jack. RJ11 and RJ14 jacks may be equal in size and appearance and both may contain four wires (black, red, green, yellow). To test the type of jack, plug in a two-line phone and see if it can access both lines. If it can, you must separate the line for your MFC.