Paxar 676, User Manual

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Mechanical Trouble Shooting
Ink
Problem Probable Cause Corrective Action
Ink wrinkles or will not
pull smoothly.
1) Incorrect adjustment of unwind
roller brake resistance.
1) Adjust knurled knob clockwise as far as
possible without breaking ink or stalling ink
motor. Do not bottom adjustment knob.
Replacement of fiber brake disc may be
required if printer has high hours.
2) Unwind roller and ink take-up
roller misaligned.
2) Align rear edge of ink with rear of print area
(allow approximately 1/8" (3mm) overlap).
Loosen thumb cap screw on ink out sensor
mount plate and adjust until it touches rear of
ink roll on unwind arbor. Lock slide rewind
core toward rear of printer until it just contacts
plate.
3) Ink buildup on turn bar(s). 3) Clean with alcohol.
4) Incorrect ink width. 4) Use an ink width no wider than stock being
printed. This is especially critical when using a
narrow web with cut down rollers.
Ink rolls loosely on take-up
roller.
1) Take-up roller not turning. 1) Assure roller does not bind and is clean. Adjust
pressure knob to higher detent position if
required.
2) Take-up core binding on locator
plate.
2) Move core .015" - .030" (.38mm - .76mm)
away from plate.
3) Ink unwind adjuster too tight. 3) Loosen knurled knob to a point flush with
surface of mounting shaft.
4) Take-up roller too full. 4) Remove used ink roll. It is designed to hold
only 1 full roll.