Image forming apparatus

An image forming apparatus configured to form an image on a sheet, comprising:

• a sheet feeding unit configured to feed and transport a sheet;
• a plurality of photoconductors configured to carry a toner image thereon and rotate while making a contact with the sheet being transported;
• a transfer belt unit including a transfer belt a surface of which faces each of the photoconductors and which is configured to circulate while transferring the toner image carried on each of the photoconductors onto the sheet being transported;
• a first frame unit provided on one end side in a width direction parallel to a rotational center of each of the photoconductors;
• a second frame unit provided on the other end side in the width direction, so that each of the photoconductors, the sheet feeding unit, and the transfer belt unit are located between the second frame unit and the first frame unit;
• and
• a bridging member extending in the width direction and bridging the first frame unit and the second frame unit,
• wherein each of the photoconductors is held by the first frame unit and the second frame unit and is positioned with respect to the first frame unit based on one end thereof in the width direction,
• the transfer belt unit is biased to the one end side in the width direction to make a contact with the first frame unit and the bridging member, to thereby be positioned with respect to the first frame unit and the bridging member, and
• the sheet feeding unit makes a contact with at least two places of the bridging member, in the width direction from a perpendicular direction perpendicular to the width direction and parallel to the surface of the transfer belt, to thereby be positioned with respect to the bridging member.