Image forming apparatus

An image forming apparatus comprising:

• an image carrier configured to carry an image;
• a transfer unit configured to transfer the image to a medium;
• and
• a cleaner configured to remove deposits on a surface of the image carrier after passing through a position of the transfer unit, wherein
• when a type of a medium to be used is a first medium, the cleaner improves an ability to remove the deposits from the image carrier by changing operating characteristics of the cleaner, as compared with a case where the medium to be used is a second medium having a lower transfer sensitivity than the first medium,
• wherein the first medium is a medium having a lower density than the second medium.