Printer and digital camera including printer

A printer that exposes an image to an instant film including a developer pod including a developer, and spreads the developer, comprising:

• a transport roller that transports the instant film to a discharge port;
• a spreading roller that is disposed on a downstream side in a transport direction with respect to the transport roller, the spreading roller spreading the developer by crushing the developer pod in a state of pinching the instant film;
• a device housing that includes the transport roller and the spreading roller;
• a roller drive mechanism that is attached to the device housing, the roller drive mechanism including a drive transmission gear train that drives the transport roller and the spreading roller;
• and
• a box-shaped cover member that covers the roller drive mechanism between the device housing and the cover member,
• wherein the roller drive mechanism includes a plate-shaped gear plate that is separate from the device housing and the cover member, the gear plate being fixed to the device housing at least two locations, and pivotally supporting at least one of a rotational shaft of the transport roller, a rotational shaft of the spreading roller, or a rotational shaft of the drive transmission gear train, and
• a gear provided in the rotational shaft of the transport roller, a gear provided in the rotational shaft of the spreading roller, and the drive transmission gear train are disposed such that a part of the gears are located between the gear plate and the device housing and another part of the gears are located between the gear plate and the cover member.