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June 13, 2008 Final Draft
Figure 19. Cleaning the MICR head
4. Gently wipe the head (see M in Figure 19) with the swab several times. Wipe
5. Replace the ribbon and close the ribbon door.
If cleaning the MICR read head does not solve a problem you are having, it might
be that you are experiencing electromagnetic noise interference. Sources of
electromagnetic noise (for example, displays, security towers, and other sources)
can interfere with the MICR read head. The printer is equipped to filter noise from
many devices. If the MICR reader does not function properly, rearranging the printer
relative to the noise source may improve MICR reading. The noise source should
be as far away as possible from the right side of the printer.
For additional information on troubleshooting MICR read problems, see "Firmware
off-line tests" on page 32.
M
pap
away any residual alcohol with a dry swab.
DRAFT
Using and maintaining the 4610
Chapter 3. Using and maintaining the 4610
27
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