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• Mechanical Trouble Shooting User Manual Model 676 LOKPRINT®
Mechanical Trouble Shooting
Stock
Problem Probable Cause Corrective Action
Stock will not roll or jumps 1) Incorrect adjustment of unwind
web guides
1) Be sure stock roll is as flat as possible and does
not extend over core.
2) Adjust web guides to touch stock roll but not
pinch the roll.
Machine fails to stop at end
of roll.
1) Incorrect adjustment of stock-out
sensor.
1) Adjust contact strip so that a “click” will be
heard when supply roll is lifted.
Stock does not pull
smoothly through
printhead module.
1) Web guides on unwind arm too
tight.
1) Adjust web guides to touch outer edges of stock
with minimum pressure required to keep stock-
out switch closed.
2) Web guides too tight 2) Adjust guides to touch edge of stock.
Stock jams in bridge blade
rollers or knife area.
1) Knife mounted bridge blade too
close to stationary bridge blade.
1) Loosen screws in upper knife securing bridge
blade roller assembly and slide up (holes in blade
are slotted) until rollers just contact stock.
Tighten screws.