| 摘要 |
PROBLEM TO BE SOLVED: To extend the service life of a roll shaft by using a conventional and common small bearing. SOLUTION: An imaging device comprises first bearings 3, 4 having first bearing outer peripheries 3b, 4b and first bearing inner peripheries 3a, 4a fitted to fist bearing mounting holes 1, 2, a first sheet carrying member R1 having a first roll shaft 6 having first roll shaft supported portions 6a, 6b at both ends and first rolls 7, 7, second bearings 13, 14 having second bearing outer peripheries 13b, 14b and second bearing inner peripheries 13a, 14a fitted to second bearing mounting holes 11, 12, a second sheet carrying member R2 having a second roll shaft 16 having second roll shaft supported portions 16a, 16b at both ends and second rolls 17, 17, and the second roll shaft 16 having second roll shaft supported portions 16a, 16b having the same outer diameter as that of a portion of supporting the first roll 7 and the outer diameter smaller than that of the first roll shaft supported portions 6a, 6b.
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