Adjusting Half-Turn Film For Color Change; Encoder Adjustment - SunStar HC Series User Manual

6-8) ADJUSTING HALF-TURN FILM FOR COLOR CHANGE

① (For automatic color change) If the needle is not at the center of the needle hole on the plate, turn the lever and
adjust so that the roller is on the center of the color change cam on the straight line. Open the cover of the half-
turn sensor and align the center of the half-turn sensor with the center of the film (see [Fig.6-18]).
[CAUTION]
Manual color change must be performed at the upper shaft angle of 100°. Manual color change at the
upper shaft angles other than 100° may cause damage on the controller and the take-up unit.

6-9) ENCODER ADJUSTMENT

Adjust the encoder as below if the needle bar stops at an incorrect position.
① Unfasten the two encoder coupling screws.
② Turn the hand lever, fix the upper shaft angle at around 98°, and adjust the encoder as in [Fig.6-19]. Tighten the
screws when FIX POS light is turned on. Fasten fixed screw on the lower shaft connecting parts of couple ring.
Half-turn
sensor
Half-turn sensor
Color change cam
Encoder base
Encoder
[Fig.6-18]
[Fig.6-19]