Avery Dennison SNAP 656 - Manual (Page 80)

74B • •• • Appendix E Users Manual Model 656/636
Static Checks for 636/656 Printers
1. Stacker: With an ohmmeter, check continuity between the main stacker
roller, which has the belts on it, and the chassis ground. Chassis ground
can be any screw near the serial cable. Check that these two important
enhancements are functioning:
a) Check the grounding clip is installed
and making physical contact with the
main stacker roller. Sometimes, the
clip is installed but moved off the
roller.
b) Check the stacker mounting knob has
a large washer installed. Make sure
to tighten the knob all the way.
2. Ink arbors: With an ohmmeter, check for
continuity on the two ink arbors and three
ink turn rollers. Place one lead of the
ohmmeter on the arbor and the other on the
chassis ground screw.
3. Printhead static protections. Check for proper installation.
a) Static brushes. Make sure the brushes are
installed and just barely touching the stock
and ink. Too much dragging and they wear;
too little contact and they don’t dissipate the
static.
b) Static shield. Make sure the static shield is
installed and the screws are tight.
WRONG! RIGHT!
Grounding
clip
Machine side of the
stacker
Washer
Stacker knob removed
Ink arbors
Ink turn rollers
Static
brushes
Shield