F9 Fetal & maternal Monitor Service Manual Disassembling the Monitor
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10.4.4 Replacing the Printhead
To remove the printhead,
1)
Separate the upper assembly and the lower assembly.
2)
Loosen the FM module by removing its fixing screws.
3)
Remove the DECG module.
4)
Unplug the connectors of the printhead signal cable and paper sensor cable from the print
control board, and then loosen the print control board by removing its fixing screws.
5) Remove the film that separates the boards and the metal piece (paper drawer cover).
6)
Remove the screws
○
3-
○
6 , loose the screws
○
1-
○
2 and then rotate the metal retainers
sideward to release the printhead connecting board.
FM Module DECG Module Print Control Board
Paper sensor cable Printhead signal cable