Toshiba B-EX4 T1 Series Product Description page 47

2. SUPPLY SPECIFICATIONS
10) Caution for minimum label pitch length
When short-pitch media is used, data may be written on a next RFID tag instead of the target
RFID tag.
As the location, where data is to be written, differs among RFID tag types, a check must be
performed using the labels to be used to make sure that the data is written on the target RFID tags.
The RFID Analyze Tool can be used for this purpose.
11) Defective RFID Tag
Defective tags could be embedded while they are converted into labels, and the error rate differs
depending on the tag types or the conversion methods.
Label manufacturers should mark such defective labels with something to indicate the tag is
defective, or should prevent defective tags from being used.
Also, how to identify defective tags and good tags should be properly notified to end users.
12) PRINT POSITION ACCURACY
When using RFID tag embedded media, the print position accuracy may exceed the guaranteed
tolerance of ±1 mm in all issue modes.
It is required to check the print position accuracy for each media type.
13) PAPER JAM ERROR
Depending on the type of glue or the flexibility of labels, a label may come unstuck in front of the
sensor unit, which cause a paper jam. Particularly, the frequency of paper jam could become
higher on the condition of low operating temperature or use of short-pitch labels.
It is required to check the media feed using the media to be used under the actual operating
environment.
2.8.6 Improvement of Writing Accuracy
As RFID tags use wireless technologies, writing data on the RFID tag may fail depending on
environment and characteristics of the RFID tags.
In order to improve the accuracy of writing data on the RFID tags, the following method can be used:
(1) Change of the maximum number of write retries
The maximum number of write retries is variable and can be changed in the system mode. Setting
the greater value can improve the writing accuracy. However, overall printing throughput may
become worse because a retry is also performed for tags on which data cannot be written.
For details of settings, refer to the B-EX4T/EX6T Key Operation Specification.
(2) Enabling of RFID adjustment for retry
The printer has the RFID adjustment for retry feature. If writing data on the RFID tag fails, the
printer automatically feeds the RFID tag forward or backward for a specified length in order to retry
a data write.
Enabling this feature can improve the writing accuracy. However, overall printing throughput may
become worse because a retry is performed even for defective tags.
For details of settings, refer to the B-EX4T/EX6T Key Operation Specification.
(3) Adjustment of location of antenna
When writing data on tags, especially on short-pitch tags, the antenna may communicate with non-
target tags, and this lowers the write rate.
The B-EX4T/EX6T has a feature to pinpoint a target tag by evaluating the output power (AGC) of
tags. Setting an AGC threshold for data write enables choosing a tag of which AGC is higher than
the threshold, determining this tag to be a target tag positioned just above the antenna, and writing
data on it. This feature can prevent writing data to non-target tags (= off the antenna).
For details of settings, refer to the B-EX4T/EX6T Key Operation Specification.
2.8 SPECIFICATION OF RFID TAG (for B-EX700-RFID-U2-CN-R)
2-31
SPTM-0152