Revision E MAC 5500 resting ECG analysis system 4-11
2020299-020
Troubleshooting: Diagnostic Tests
Writer Tests
Run the writer tests to check the motor speed control, paper speed, paper tracking,
paper cueing, and print head quality. During the tests, make the following general
checks.
The first character printed should not be distorted. This checks start-up speed.
The writer should not skew or crush either edge of the paper.
The large triangles and diagonal lines printed across the pages should be
straight and uniform, without curves or wavering.
The perforations should align with the tear bar on the door after cueing.
Paper travel should be smooth.
C-Scan Tests 1, 2, & 3
These tests are combinations of test pattern I and the roller test. They are used by the
writer vendor.
50 mm/s Test Pattern I, 25 mm/s Test Pattern I, and
5 mm/s Test Pattern I
These test patterns check the motor speed control and the paper speed. Verify that
the length of the printout from start to finish is 250 mm ± 5 mm. Use the grids
located on the top and bottom of the page for reference. Do this for each of the three
tests.
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