Cleaning the Timing Strip on Your Canon PrinterThe timing strip is a clear, plastic strip approximately ¼” in height positioned horizontally across thecenter of the unit, just in front of the carriage drive belt. The timing strip contains many thin blackvertical lines that help determine the carriage position during operation.During certain uncommon tasks such as the removal of a paper jam, it is possible to inadvertently toucha lubricated area on the printer’s chassis causing a small amount of grease to be deposited onto thetiming strip.Grease on the timing strip may result in poor print quality including; mis-aligned or distorted characters,vertical lines or, in some cases, an inoperable error condition or knocking / grinding noise.In most cases, it is easy to remove the grease from the timing strip using common household items. Ifyou wish, you may follow the steps below to remove the grease from the timing strip.Items needed:• Clean, unused cotton swab• Small amount of Isopropyl Alcohol or window cleaner• Flashlight or other light sourceNote: The illustrations will display a PIXMA MX700; however, the parts and cleaning procedure will bethe same for your model.1) Power on the printer and open the main access cover (scanning unit cover).The Print Head Holder (carriage) will move to ink changing (center) position.