M4735A Service Manual 4-5
External Assemblies
4
User Replaceable Parts and Accessories
The Instructions for Use gives detailed instructions on replacing the follow-
ing:
z Patient cables & sensors
z Battery
z Printer paper
User Maintenance
The Instructions for Use gives detailed instructions on maintaining and
cleaning the M4735A, including:
z Operational Checks
z Battery Maintenance
z Cleaning Instructions
For the convenience of the service person, instructions on cleaning the printer
printhead are duplicated here. Instructions on running the Battery Capacity
Test are duplicated on page 2-47.
Cleaning the Printer Printhead
If the traces or characters in the printout are faint or vary in density (dark-
ness), clean the printhead to remove any buildup of paper residue.
1. Open the printer and remove the paper
a. Slide the printer door to the right until the paper roller pops up.
b. Pull up on the plastic tab to remove the roll of paper.
2. Clean the printhead
Clean the printhead surface (above the brush) with a cotton swab dipped
in isopropyl alcohol. Take care to not leave cotton fibers behind.
3. Replace the paper.
4. Close the printer door.
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