APPENDIX F
78
Testing Printer Operation
After cleaning and inspecting the Z200+ thermal printer, confirm the printer is working properly.
To test printer operation
1. Using an ECG simulator with the X-Scribe, acquire and print ECGs of known amplitude.
A successfully printed ECG report has the following characteristics:
1. Printing should be dark and even across the page.
2. There should be no evidence of print head dot failure (i.e., breaks in printing forming horizontal streaks).
3. Paper motion should be smooth and consistent during printing.
4. Waveforms should appear normal, with proper amplitude, and without distortion or excessive noise.
5. Paper should stop with perforations near the tear bar (indicating proper cue sensor operation).
Post-Service Testing
Following any service to the Z200+ thermal printer or when non-compliant operation is suspected, Mortara
Instrument recommends the following procedures:
Confirm proper operation as described in Testing Printer Operation.
Perform testing to ensure continued electrical safety of the device
(use IEC 60601-1 or ANSI/AAMI ES1 methods and limits).
- Earth leakage current.
NOTE: There is no exposed metal and no patient connection to this unit.
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