13-14 Troubleshooting Chapter 13 Transparencies or back print film do not feed correctly.The transparencies or back print film may not be loaded correctly.• Make sure they are loaded properly (1 p. 2-16). Do not load more than 50transparencies or 10 back print film sheets in the multi-purpose tray. Repeated paper jams occur.The paper you are using may be causing the jams.• Be sure to fan the paper stack before loading it in the multi-purpose tray. This keepsthe sheets of paper from sticking together. (1 p. 2-18)• Check that the paper you are using and your printing environment are within thespecifications of the unit. (1 Chapter 5) Envelopes do not load.Envelopes may not be loaded correctly.• Make sure the envelopes are loaded properly (1 p. 5-8). Do not load more than 10envelopes in the multi-purpose tray.The envelopes you are using may not meet the requirements for the unit.• Envelopes must be European DL or U.S. Commercial No. 10 envelopes.(1 pp. 5-2, 5-4)nFor additional troubleshooting, 1 Software User’s Guide.Faxing ProblemsSending Problems You cannot send a fax.The unit may have overheated.• Unplug the unit and let it cool for several minutes. Then plug it back in and trysending again.The unit may not be set for the type of telephone line in use (pulse/tone).• Make sure the unit is set for the correct telephone line type. (1 p. 3-10)The document may not have been loaded correctly into the ADF.• Remove the document, stack it if necessary, and load it into the ADF correctly.(1 p. 4-4)• Check that the document feed lever is set for the type of document you are sending.(1 p. 4-2)• Make sure the operation panel is closed.