PrintheadsReplacing the PrintheadWhen to replace the PrintheadThis printer uses two Printheads.Replace one or both Printheads in the following situations.• If the printing quality does not improve even after two cycles of Head Cleaning B from the printer menuReplace both Printheads, one at a time.• If the Display Screen indicates Open top cover and replace the left printhead.Replace the left Printhead.• If the Display Screen indicates Open top cover and replace the right printhead.Replace the right Printhead.• If your Canon dealer has advised you to replace the PrintheadReplace the Printhead that your dealer advised you to replace.Compatible PrintheadFor information on the compatible Printhead, see “Printhead”. (→P.623)Precautions when handling the PrintheadTake the following precautions when handling the Printhead.Caution• For safety, keep the Printhead in a place inaccessible for children.• If ink is accidentally ingested, contact a physician immediately.• Do not touch the Printhead immediately after printing. The Printhead becomes extremely hot, andthere is a risk of burns.Important• Avoid dropping or shaking the Printhead. Otherwise, ink may leak and cause stains.• There may be ink around the nozzles of the Printhead you remove. Handle the Printhead carefullyduring replacement. The ink may stain clothing.• Do not open the Printhead pouch until immediately before installation. After removing the Printheadfrom the pouch, install it right away. If the Printhead is left after the pouch is opened, the nozzlesmay dry out, which may affect printing quality.• If you need to store a Printhead temporarily before installation, do not keep the nozzles and metalcontacts (→P.630) facing down. If the nozzles or metal contacts are damaged, it may affect theprinting quality.• Never attempt to take apart or modify a Printhead. This may damage the printer.• Never touch the Printhead nozzles or the metal contacts. This may cause printing problems.626 Maintenance
