Detection device and printing apparatus

A detection device comprising:

• a first belt stretched over a first pulley and a second pulley, the first belt being provided with a first sensor with a first interposition unit interposed therebetween;
• a second belt stretched over a third pulley and a fourth pulley to be arranged in parallel to the first belt, the second belt being provided with a second sensor with a second interposition unit interposed therebetween;
• a drive unit configured to generate a driving force for moving the first belt and the second belt;
• and
• a rotation shaft configured to transmit the driving force to the first pulley and the third pulley, the first pulley and the third pulley being fixed to the rotation shaft, wherein the detection device has at least one of:
• a structure in which the first interposition unit is configured to adjust a position of the first sensor in an extending direction of the first belt, and a structure in which the second interposition unit is configured to adjust a position of the second sensor in an extending direction of the second belt.

A detection device comprising:

• a first belt stretched over a first pulley and a second pulley, a first sensor being fixed to the first belt;
• a second belt stretched over a third pulley and a fourth pulley to be arranged in parallel to the first belt, a second sensor being fixed to the second belt;
• a drive unit configured to generate a driving force for moving the first belt and the second belt;
• and
• a rotation shaft configured to transmit the driving force to the first pulley and the third pulley, the first pulley and the third pulley being fixed to the rotation shaft, wherein
• the detection device has at least one of:
• a structure in which the first pulley is configured to be in a state of being fixed to the rotation shaft and a state where an angle as viewed from an axial direction is adjustable;
• and
• a structure in which the third pulley is configured to be in a state of being fixed to the rotation shaft and a state where an angle as viewed from the axial direction is adjustable.