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Diagnostics and Print Tests
3255 4073–002 3–25
Checking MICR Noise Level
This test checks the extraneous signals picked up by the MICR check reader
and prints a reading indicating the relative level of the noise. If the noise level is
printed as a letter lower than F (A-E), then the MICR check reader will generally
read the MICR characters without problems. However, if the letter printed is the
letter F or above, there may be problems when reading the MICR characters,
and you may need to call a service representative.
Note: The MICR check reader feature has been factory adjusted for a
normal operating environment with a host computer. However,
additional devices, such as CRT monitors or large metal surfaces
near the printer, can affect the printer’s magnetic field, causing
intermittent reading errors when the MICR check reader is in
operation.
Caution
The DIP switches are set at the factory to predetermined settings. Change the
settings carefully to avoid changing other functions.
1. Turn the printer off.
2. Turn the printer to the back to access the DIP switches and write down the
current switch settings.
3. Set the DIP switches to the following settings:
Switch
1
Switch
2
Switch
3
Switch
4
Switch
5
Switch
6
Switch
7
Switch
8
ON OFF ON OFF OFF OFF ON OFF
4. Turn the printer back on to begin the test.