Comen CM300 - Partial Buttons or All Buttons Failure; Print Problem

Shenzhen Comen Medical Instruments co., ltd.
18
it is due to body movement or
respiration of the involved patient
or mixed an old electrodes with
new electrodes for together use
4.5.9 Partial buttons or all buttons failure
Symptoms
Possible Cause
Correction Action
Partial buttons or all
buttons failure
Connector between the control
panel and the line board out of
proper connection.
open the upper cover of the machine and
re-connect the connector between control
panel and line board
Keypad broken
Change new keypad
Internal line between membrane
buttons is broken due to long time
of use.
Replace the involved membrane buttons.
Main board defective
Change the new main board.
4.5.10 Print problem.
Symptoms
Possible Cause
Correction Action
Waveforms displayed
properly but can’t be
printed
Print paper in incorrect position
Load print paper in correct position
Inverse putting of paper
Check whether the print paper in the right
position.
Paper type incorrect
Change the correct Paper
Print head unclean
Clean the print head
Print cable didn’t connect well
Check the print cable is reliably connected
Printer defective.
Change new printer.
Main board
defective
Change new main board