HP LaserJet Printers - Print Media Guide

Table 2-3 Label properties and specications (continued)
Property Specications
Face sheet The face sheet is the printable surface on a sheet of adhesive labels
and can be made from dierent materials, including paper,
polyester, and vinyl. It is common for a face sheet to be die-cut so
that individual shapes can be removed after printing. Polyester and
vinyl labels require a topcoat to provide the proper electrical and
toner adhesion properties. It is important to purchase labels from a
knowledgeable converter who is familiar with these processes and
laser printing.
Fusing compatibility All inks, adhesives, and other materials that are used in the label
construction must be compatible with the heat and pressure of the
fusing process. Materials must not scorch, melt, ignite, oset
materials, or release undesirable emissions when heated to 205°C
(401°F) for 0.1 second (0.2 second for HP color LaserJet printers).
Liner The liner is the carrier sheet for the label material. The liner must
provide stability for the reliable pickup and transport of the label
stock through the printer.
CAUTION: The liner or release layer should not be exposed on the
front. Open spaces and gaps might trap toner and prevent it from
fusing properly.
Packaging The labels should be delivered in moisture-proof wrap to preserve
their properties.
Shelf life The labels should have a minimum shelf life of one year, when
stored at 23°C (73°F) and 50 percent relative humidity.
Recommendations for using labels
Follow these HP recommendations for using labels.
● Regularly inspect your labels after printing for any indication that the label edges are lifting or that
adhesive contamination is occurring on the print surface. If either of these problems is observed, HP
recommends that you discontinue use of that box or lot-number of labels and discuss the problem with
your label supplier.
● If many sheets of labels are being continuously run, periodically run several sheets of paper through the
printer to clean any contamination or label-stock adhesive that might have deposited.
CAUTION: Be sure to run full sheets of labels. Reprinting unused portions can increase the risk of the labels
peeling and the occurrence of adhesive contamination.
ENWW Using print media 19