Avery Dennison SNAP 656 - Manual (Page 59)

Users Manual Model 656/636 Mechanical Trouble Shooting • •• • 53B
Problem Probable Cause Corrective Action
Cracks or craze marks
appear on face of
finished labels.
1) Incorrect adjustment of decurler. 1) Move decurler turn-bar toward unwind end of
printer until cracks no longer appear.
Stock jams in bridge blade
rollers or knife area.
1) Drive mounted blade roller ass’y
missing or rollers set too high.
1) Mount missing ass’y. Adjust roller position by
loosen screws in slots in lower bridge blade
mount and raising blade until .015-.020” of
roller extends above plate.
2) Knife not cutting full width of
stock.
1) Loosen knife shear adjustment screws and move
outer end of knife until full cut is accomplished.
3) Stacker not operating or nip
rollers not turning.
1) Check stacker connection to access port. Be
sure nip roller is free to rotate and moves easily
in the bearing slots.
Will not stack. 1) Stacker not operating. 1) See step 3 above.
2) Stacker position on printer too far
forward so labels go under rear
stacker rail.
1) Loosen stacker mounting knob and move
stacker toward rear of printer - tighten.
3) Incorrect rail position or stacker
bed angle.
1) Using a cut label, position stacker rails so that
approximately 3/8" (9.5mm) overhangs the
second grooved roller. Loosen quick-turn
handle on stacker clamp and raise or lower
stacker bed until opening between 1st label
overhang and belt surface will allow entry of
next label.
Knife will not cut or partial
cut
1) Incorrect pre-load on clutch pawl. 1) With back cover removed and power off -
operate solenoid by hand. When lever is moved,
clutch pawl should move counter-clockwise
about 1/32" (0.79mm) with the "Pacman" in
home position. If not - loosen "Pacman" set
screws and readjust "Pacman" to stop with
spring in detent.
2) Partial cut 1) Loosen shear adjustment screws and move outer
end of knife until full cut is obtained.