Datamax-O'Neil I-Class Operator’s Manual - Manual (Page 131)

I-Class 121
on demand An output regulator (i.e., the Present Sensor) that inhibits printing when a
label is already present.
preprinted media Label stock that contains borders, text, or graphics, floodcoating, etc.
perforation Small cuts extending through the backing and/or label material to facilitate
their separation (also referred to as “perf”).
print speed The speed at which the media moves under the printhead during the printing
process.
reflective media Media imprinted with carbon-based black marks on the underside of the
material, which is used to signal the top-of-form when the “reflective” sensor is
enabled.
registration Repeatable top to bottom alignment of printed labels.
reverse speed The backward rate of media motion into the printer during tear-off, peel
and present and cutting operations for positioning the label at the start of print
position.
ribbon An extruded polyester tape with several layers of material, one of which is ink-like,
used to produce an image on the label (also referred to as “foil”).
ribbon wrinkle An undesirable overlapping of the ribbon during the printing process that
leads to voids on the printed label, typically caused by an improper leveling cam
adjustment.
roll media A form of media that is wound upon a core.
start of print (SOP) The position on the label where printing begins; also, the signal that
initiates GPIO-controlled printing.
tag stock A heavy paper or synthetic printing material, typically featuring a notch or black
mark for TOF and no adhesive backing.
thermal transfer The printing method that creates an image by transferring ink from a
ribbon onto the media using the heat from the thermal printhead.
TOF (top-of-form) The start of a new label as indicated by a label gap, notch, mark or
programming.
void An undesirable blank space in a printed image.