Sheet stacking apparatus and image forming apparatus

An image forming apparatus comprising:

• an image forming portion configured to form an image on a sheet;
• and
• a sheet stacking apparatus on which the sheet on which the image is formed by the image forming portion is stacked, the sheet stacking apparatus including:
• a storage on which the sheet is placed;
• a sheet feeding portion configured to feed the sheet placed on the storage;
• an electrical component;
• a storage frame in which the storage and the electrical component are stored;
• a power supply portion provided outside the storage frame and configured to supply power to the electrical component;
• a cable configured to connect the electrical component and the power supply portion via an opening portion provided in the storage frame;
• and
• a seal member provided between the opening portion and the cable.