Image forming apparatus with control for controlling recording material conveying speed

An image forming apparatus comprising:

• a photosensitive drum configured to carry a toner image;
• a first roller configured to convey a recording material;
• a first motor configured to drive the first roller;
• a second roller configured to convey the recording material conveyed by the first roller;
• a second motor configured to drive the second roller, the second motor being different from the first motor;
• an intermediary transfer member onto which the toner image is transferred from the photosensitive drum;
• a transfer member configured to transfer the toner image from the intermediary transfer member onto the recording material;
• a sensor unit provided on a side upstream of the transfer member with respect to a conveying direction of the first roller;
• and
• a controller,
• wherein the controller is capable of executing (1) first control for controlling a recording material conveying speed by controlling the first motor on the basis of the sensor unit and (2) second control for controlling the recording material conveying speed by controlling the first motor and the second motor before executing the first control, and
• wherein the controller controls the first motor and the second motor in the second control so that a recording material conveying speed of the recording material positioned on a side upstream of the sensor unit with respect to the conveying direction of the first roller is decelerated or so that conveyance of the recording material is stopped and then the recording material conveying speed is accelerated.