Oki LE840 Guide De L'utilisateur page 101

7. SUPPLY SPECIFICATIONS
(7) Printing on Bump (Chip/Antenna) Area
Embedding an RFID tag in labels creates bumps on the label surface, causing incomplete printing.
Uneven printing or incomplete printing can occur easily, especially within 5 mm top and bottom, and to
the left and right sides of the RFID-tag embedded area, as shown in the figure below.
NOTE: The degree of poor printing quality differs depending on height of a chip/antenna used.
Media feed
direction
(8) Ambient Temperature
As low temperatures cause wireless performance to deteriorate, writing data on an RFID tag may fail
under such conditions.
(9) Strip Issue
Stripping performance in strip issue mode depends on the type of adhesive, tag, and backing paper.
For some RFID supplies used, a strip issue may not be performed properly.
(10) Caution for Minimum Label Pitch Length
When using media, with a short label pitch length, data may be written on an RFID tag adjacent to the
target RFID tag.
As the location, where data is to be written, differs among RFID tag types, a check must be performed
to make sure that the data is written on the target RFID tags. For details, please contact the nearest
Oki Data support representative.
(11) Defective RFID Supply
RFID supplies may include defective RFID tags at the time of shipment from the maker. The defect
rate differs depending on tag types, method of converting to supplies, etc.
The RFID supply manufacturer should provide a way to identify defective tags by printing a mark on
them or any other methods.
Or, defective tags should be rejected in the production process.
The end users must be notified on how to identify a defective tag from a good one.
RFID-tag
Embedded
area
Poor printing may occur in
this area due to a bump.
E7-7
5 mm
Poor printing may occur in
this area due to a bump.
5 mm
7.2 Ribbon