ii
Introduction
(6) In the course of use, the thermal head gradually becomes soiled which will lower the print quality. If this
happens, it is recommended to clean it using the optional B-368 head cleaner kit. If the print quality does
not improve even after using the head cleaner, contact your sales representative or nearest Graphtec
vendor.
(7) Do not use the WR300 Series in the vicinity of other devices which are susceptible to electromagnetic
interference.
(8) Measured results may not conform to the stated specifications if the WR300 Series is used in an
environment which is subject to strong electromagnetic interference.
(9) Insofar as possible, position the WR300 Series input signal cables away from any other cables which
are likely to be affected by electromagnetic interference.
(10) For stabilized measurement, allow the WR300 Series to warm up for at least 30 minutes after turning it
on.