8 Handbook|Display Panel Messages .................................................... 137Normal Display ............................................................... 137Error Messages ................................................................ 137Reading the Print Counters ............................................... 139Problem Checklist ............................................................. 140The display is blank. .................................................... 140Nothing happens when you press the controlpanel keys. ................................................................... 140The display tells you to replace paper eventhough there is paper in the paper tray. ....................... 141Your documents jam in the scanner. ............................. 141Your fax machine won’t dial. ....................................... 141The display shows a communication error. .................. 142You sent a fax but the image the remote faxmachine received was very poor. ................................. 142You sent a fax but it was received completely blank. .. 142You keep getting reports you do not want. .................. 143The image received on your fax machine wasvery poor. ..................................................................... 143You tried dialing with a One Touch key or anAuto Dial code but nothing happened. ....................... 143Your fax machine does not answer the phoneor receive faxes. ........................................................... 144Your received documents are light or have verticalstreaks on them and you are not out of toner. ............. 144You set your fax machine for delayed transmissionbut it did not send. ...................................................... 144Your fax machine disconnected before you couldanswer a voice request. ................................................ 144Your fax machine will not poll a remote fax machine. 145Someone tried to send you a confidential faxbut nothing happened. ................................................ 145Your fax machine is connected to a PBX andyou cannot dial out. .................................................... 145You want to answer an external telephone but yourfax machine always answers first. ................................ 145Your received faxes sometimes look distorted. ............ 145You are constantly receiving unsolicitedadvertising on your fax machine. ................................ 145Your fax machine does not immediately switch toTEL mode when you make or receive a voice call. .... 146You are experiencing problems communicating witha remote location in a very noisy telephone area. ...... 146Firmware ............................................................................ 147Identifying Your Current Firmware Version .................... 147Upgrading Your Firmware ............................................... 147Serial Number of Your Fax Machine ................................. 147Security ................................................................... 148Confidential Faxes ............................................................ 148Rejecting Unsolicited (Junk) Fax Messages ..................... 148Closed Network Option .................................................. 148