9 Troubleshooting9-8 Xerox PE220• Do not use creased, damp, or highly curled paper.• Do not mix paper types in the tray.• Use only recommended print materials. Paper Specifications on page 10-6.• Ensure that the recommended print side of print materials is facing up inthe tray.Clearing LCD Error MessagesDisplay Meaning Suggested SolutionsCancel?1:Yes 2:NoYour machine’s memoryhas become full whiletrying to store adocument into memory.To cancel the fax job, press the1 button to accept “Yes”.If you want to send the pagesthat have been successfullystored, press the 2 button toaccept “No”. You should sendthe remaining pages later, whenmemory is available.Comm. Error The machine has acommunicationproblem.Ask the sender to try again.CRU Fuse Error The print cartridge isnot installed correctly.Install the print cartridgecorrectly. See Installing theSmart Kit ® Print Cartridgeon page 2-4.Document JamRemove&ReloadThe loaded documenthas jammed in the ADF(Automatic DocumentFeeder).Clear the document jam. SeeClearing Document Jams onpage 9-2.Front or RearCover OpenThe front door or rearcover is not securelylatched.Close the door until it locks intoplace.Enter Again You entered anunavailable item.Enter the correct item again.Low Heat Error There is a problem inthe fuser unit.Turn power off and wait 10seconds. Turn power on. If theproblem persists, call forservice.Open Heat ErrorOver Heat