Specifications

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• Mechanical Trouble Shooting Users Manual Model 686 / 686 HT
Ink
Problem Probable Cause Corrective Action
Ink wrinkles or will not
pull smoothly.
1) Unwind roller and ink take-up
roller misaligned.
1) Align rear edge of ink with rear of print area
(allow approximately 1/8" (3mm) overlap).
Loosen thumb cap screw on ink roll locator
plate and adjust until it touches rear of ink roll
on unwind arbor. Slide rewind cores toward
rear of printer until it just contacts plate.
2) Ink buildup on turn bar(s). 1) Clean with alcohol.
3) Incorrect ink width. 1) Use ink 1/4 inch wider than stock being printed
by overhanging 1/8 inch on either side of stock.
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) Be sure belt is on rear drive sprocket. Be sure
magnetic drive (rear of center frame) can turn
freely. No adjustment for tension is available
or required.
2) Take-up core binding on locator
plate.
1) Move core .015" - .030" (.38mm - .76mm) away
from plate.
3) Take-up roller too full. 1) Remove used ink roll. It is designed to hold
only 1 full roll.
Print
Problem Probable Cause Corrective Action
Poor print - uneven or no
print (mechanical).
Also see electrical
troubleshooting.
1) Broken ink. 1) Replace ink and readjust (see INK
troubleshooting).