Canon imageCLASS MF7460 imageCLASS MF7400 Series Basic Operation Guide - Page 76

Original and Paper Into the Feeder - If the same original is fed through the feeder repeatedly, the original may fold or become creased, and make feeding impossible. Limit repeated feeding to a maximum of 30 times (this number varies, depending on the type and quality of the original). - If the feeder rollers are dirty from scanning originals written in pencil, perform the feeder cleaning procedure. (See "Cleaning the Machine," on p. 10‑2.) - Always smooth out any folds in your originals before placing them into the feeder. - Set the originals one by one if they are very thin (10 to 16 lb (37 to 52 g/m2)) or very thick (28 to 32 lb bond (105 to 128 g/m2)). - 11" x 17" and LGL originals must be placed horizontally in the feeder. 1 Adjust the slide guides to fit the size of your originals. 2 Neatly place your originals with the side to be copied face up into the original supply tray. Place your originals into the feeder as far as they will go. If any dirt on the original scanning area is detected when the originals are placed in the feeder, the following screen appears. Even though streaks may appear on the copies, you can continue to scan your originals by pressing [Done]. It is recommended, however, that you open the feeder, clean the scanning area, and then close the feeder. The following screen will not appear once the scanning area is clean. For instructions on cleaning the original scanning area, see "Cleaning the Machine," on p. 10‑2. 2‑9