SHARP JX-250
Manual de Servicio

2 Adjusting speed reduction belt tension
Whenever the reduction belt is removed, the reduction tension needs to be adjusted.

4 Adjusting first belt tension and second belt tension
Whenever the first and second tension belts are installed, make sure to adjust their belt tension again.

1 Temporarily tighten the main motor screws to the extent that the
main motor can be moved.

1 Temporarily install the motor unit. 2 Pass the second belt through the first pulley and motor unit. 3 Secure the motor unit by pulling by a force of 1.5 kg-f. 4 Temporarily install the follower pulley (with angle). 5 Pass the first belt through the first pulley and the follower pulley. 6 Secure the follower pulley by pulling by a force of 2.0 kg-f.

2 Pass the reduction belt through the main motor and the reduction
pulley.

3 Pulling the motor in the direction of the connector by a force of
500 gf, secure it with the screws.

3 Adjusting first and second carriage fitting positions
After adjusting the belt tensions, reinstall the first and second carriages as follows:

1 Install the second carriage on the second belt. 2 Push the second carriage forward (LED-PWB side) until it contacts the frame.

3 Install the first carriage on the first belt. (The first carriage should
be installed at a place as close to the second carriage as possible.

4 Push the first carriage forward (LED-PWB side), skipping teeth,
until it contacts the second carriage.

5 Skip the first carriage backward (SCSI cable side) by on tooth or
about 2 mm.

9�3