Condition Suggested solutionsI encounter error“Unable to open MFPport device file!” whenprinting a document.Avoid changing print job parameters (via SLPR utility, forexample) while a print job is in progress. Known versions ofCUPS server break the print job whenever print options arechanged and then try to restart the job from the beginning.Since Linux MFP driver locks MFP port while printing, the abrupttermination of the driver keeps the port locked and thereforeunavailable for subsequent print jobs. If this situation occurred,try to release the MFP port.Common Mac ProblemsProblems in the chooserCondition Suggested solutionsThe printer does notprint a document fromAcrobat Reader.Incompatibility between the PDF file and the Acrobat products:Printing the PDF file as an image may solve this problem. Turnon Print As Image from the Acrobat printing options.The document hasprinted, but the printjob has notdisappeared from thespooler in Mac OS10.3.2.Update your Mac OS to OS 10.3.3. or higher.Some letters are notdisplayed normallyduring the cover pageprinting.This problem is caused because Mac OS cannot create the fontduring the cover page printing. English alphabet and numbersare displayed normally at the cover page.When printing adocument in Mac withAcrobat Reader 6.0 orhigher, colors printincorrectly.The resolution setting in the printer driver may not be matchedwith the one in Acrobat Reader.NOTE: Refer to Mac OS User’s Guide that came with your computer for furtherinformation on Mac OS error messages.- 345
