Final answer:
Jointers should be equipped with point of operation guards to ensure the safety of the operator by covering the moving blades and reducing the risk of injury.
Step-by-step explanation:
Jointers, a type of woodworking tool used for flattening and straightening the edges of boards, should be equipped with safety guards to prevent accidental contact with the cutting blades. Specifically, jointers should have point of operation guards. These guards are designed to cover the blades or cutting heads, thereby reducing the risk of injury to the operator. The guard should automatically adjust to cover the unused portion of the head and should remain in contact with the material as it is being processed. While other types of guards such as hood guards exist, point of operation guards are essential for jointers to ensure that the operator's hands do not come into contact with the cutting area during use.