Welch Allyn 53 Service Manual page 52

Disassemble the Front Chassis Assembly Disassembly Procedure
Printer button
Reassembly Notes
If you are replacing the keypad and your monitor does not include the thermal printer
option, the Printer button must be removed from the keypad before you reinstall the
keypad. To remove the Printer button, cut the membrane connecting the button to the
keypad. (Note the circled area in the illustration.)
Printer button
Service Manual 52 Vital Signs Monitor Series 300