Lost Canon scan­ner with El Cap­i­tan

Mac Format - - GENIUS TIPS - by TONY G LUCK

QI’ve just up­dated my iMac to El Cap­i­tan. Although I can still print nor­mally to my Canon Pixma MG4250, I can’t use its scan­ner, de­spite that fea­ture work­ing nor­mally from a lap­top run­ning Win­dows 7. Does El Cap­i­tan not sup­port this model’s scan­ning ca­pa­bil­ity?

AEl Cap­i­tan does sup­port your de­vice, both as a printer and a scan­ner. Some­times it takes a lit­tle ca­jol­ing to get this go­ing, though. To be­gin, unin­stall all Canon soft­ware for it, par­tic­u­larly any which has been mi­grated from pre­vi­ous ver­sions of OS X. Next up, dis­con­nect the printer: open the Print­ers & Scan­ners pane in Sys­tem Pref­er­ences, se­lect the cur­rently in­stalled printer and click the – (mi­nus) but­ton be­low the list of de­vices to re­move it. Re­peat this for it as a scan­ner.

Next, open the App Store app and in­stall any OS X up­dates that it of­fers. Re­con­nect your printer to the Mac and power it up. When it’s ready to use, open Print­ers & Scan­ners, and in­stall the de­vice there again, both as a printer and a scan­ner. Check again for any App Store up­dates, as in­stal­la­tion some­times trig­gers ad­di­tional up­dates.

If that still doesn’t get the scan­ner work­ing prop­erly, visit Canon’s sup­port site, down­load its soft­ware for El Cap­i­tan, then re­move the printer as de­scribed above, re­con­nect the hard­ware and in­stall Canon’s soft­ware in­stead.

If your scan­ner is no longer ac­ces­si­ble af­ter an OS X up­grade, try re­mov­ing it from the Print­ers & Scan­ners pane and adding it again.

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