Advanced menu User guide106Automatic paper widthdetection (APW)The automatic paper width detection feature APW prevents the prin-ter from printing beyond the paper edge. This is useful to prevent theprinter from printing on the platen, for example, because of an incor-rect driver setting.Select the APW (2) menu.Setting options: On/OffDefault setting: OnIf APW=On, the printer is in the standard mode and truncates alldata located beyond the right-hand paper edge. These print data arelost.When you select APW=Off, the printer does not prevent undesirableprinting on the platen.The printer determines the paper width by means of an optical sen-sor in the print head module. The print head carriage moves onceacross the maximum possible printable area of the paper and storesthe width measured in this process. The measuring process varies,depending on the paper source selected.Tractor: The measurement is made` after power-on and before the first print job;` after paper end and before the subsequent print job; after` changing the paper source (e.g. from Tractor 1 to Tractor 2).Single sheet mode: The measurement is made for each printedsheet.Manual sheet feeder: The measurement is made for each printedsheet.When you submit a print job which exceeds the paper width, the fol-lowing message appears in the display:The print job is stopped at the measured paper-end position afterprinting the first line.APW AEDBack Next OnlineSetup21 3 4APW=On *OnlineSetupSet < > Exit21 3 4Paperwidth ErrorOnlineSetupPress Online21 3 4
