User Manual

Setup
158
Media Storage Tips
• Store media in a clean, dry, cool, dark area. Direct thermal media is chemically treated to be heat
sensitive. Direct sunlight or heat sources may ‘expose’ the media.
• Do not store media with chemicals or cleaning products.
• Leave media in its protective packaging until it is going to be put in the printer.
• Many media types and label adhesives have a ‘shelf life’ or expiration date. Always use the oldest,
viable (non-expired) media first.
Loading Roll Media
All of the ZD621 and ZD421 4 inch Link-OS printers load print media rolls the same. The printers support
the three basic types of media:
• Continuous (receipt, etc.) with no marks to define print length,
• Marked media (black lines, black marks, notches, or holes) to define print length
• Label media that uses the sensor to look through the media backing (liner) to see the beginning and
end of labels on the roll.
The printer utilizes two (2) sensing methods to accommodate a wide range of media:
• Center area transmissive sensing for continuous media and gap/web label media.
• Full-width movable (reflective) sensing for print format (length) using black marks, black lines,
notches or holes.
Setting Media Sensing by Media type
• For web/gap media, the printer senses the differences between the label and the liner to determine
the print format length.
• For continuous roll media, the printer only senses the media’s characteristics. The print format’s
length is set by programming (driver or software) or the last stored form’s length.
• For black mark media, the printer senses the beginning of the mark and the distance to the start of
the next black mark to measure the print format length.
• For other common media and setting variations, go to one of the following:
• Using the Label Dispenser Option on page 214 after you have loaded media using this
procedure.
• Printing on Fan-Fold Media on page 210.