Stryker LIFEPAK 35

Printer not printing / paper feed failure

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Asset Type

Defibrillator

Manufacturer

Stryker

Model

LIFEPAK 35

What This Guide Helps With

Troubleshooting absent print output, failed paper advance, intermittent feeding, paper loading problems, and external causes affecting the optional LIFEPAK 35 printer.

Step-by-Step Troubleshooting

Ensure Patient Safety First

Do not troubleshoot the printer while the LIFEPAK 35 is supporting active patient care.

If printed documentation is operationally required and unavailable, provide clinical staff with another verified device or approved documentation method before evaluation.

Expected: Patient care and required clinical documentation are not dependent on a device with an unresolved printer problem.

Why it matters: A printer fault may not prevent monitoring or therapy, but troubleshooting must never interfere with emergency readiness.

Verify the Exact Printer Complaint

Confirm what is actually occurring:

Attempt a controlled print using an appropriate non-patient test condition.

Expected: The failure is reproduced consistently enough to separate a printer, paper-feed, or print-visibility problem.

If printing works normally: Document the result, complete required operational verification, and stop.

Check Whether the Device Has the Printer Option

Confirm the unit is configured with the optional printer and that the complaint applies to the installed hardware. Stryker identifies the LIFEPAK 35 printer as an optional component.

Expected: Installed printer hardware is present and available for testing.

If no printer is installed: The complaint is a configuration or expectation issue rather than a paper-feed failure. Document and stop.

Inspect the Paper Supply

Open the printer area and verify:

Use the correct specified printer paper for the LIFEPAK 35. Stryker documentation identifies a 100 mm printer-paper format for the platform.

Expected: A clean, compatible paper roll is available and can unwind freely.

If replacing the paper resolves the issue: Verify repeat printing and stop.

Reload the Paper Correctly

Remove and reload the paper according to the approved LIFEPAK 35 loading method.

Verify that:

The LIFEPAK 35 service documentation directs technicians to the device Operating Instructions for printer-paper loading.

Expected: Paper sits squarely in the compartment and is not mechanically restricted.

If normal printing returns: Perform multiple print attempts to confirm reliable feeding, then stop.

Check Paper Orientation When Paper Feeds but Appears Blank

If the paper advances normally but no visible trace appears:

Expected: Printed information becomes visible when the thermal-sensitive surface is correctly presented to the print mechanism.

If visible printing returns: Confirm repeatable output and stop.

Inspect the Printer Door and Closure

Check the printer door for:

Open the door, clear accessible paper or debris without disassembling the printer, reload the roll, and close the compartment securely.

Expected: The door closes fully and the paper path remains aligned.

If the printer operates normally: Repeat the print test and stop.

Inspect for an Accessible Paper Jam

With the device removed from patient use:

Expected: The externally accessible paper path is clear.

If clearing the obstruction restores operation: Reload paper, perform repeated print tests, and stop.

Test with a Known-Good Paper Roll

Install a fresh, known-good compatible roll.

This helps rule out:

Expected: Printer output and paper advance become consistent.

If the known-good roll resolves the problem: Remove the suspect paper from service, verify multiple prints, document, and stop.

Perform a Controlled Power Restart

After confirming the device is not supporting a patient:

Expected: A transient control condition clears and printing returns.

If printing returns: Repeat the test several times and complete required operational verification before return to service.

If the fault immediately returns: Continue troubleshooting.

Determine Whether the Failure Is Mechanical or Command-Related

Observe the printer during a controlled print request.

No sound and no paper movement:
The printer may not be receiving or executing the print command.

Motor or feed sound but no movement:
Suspect paper loading, obstruction, feed engagement, or internal printer mechanism failure.

Paper moves but output is blank:
Recheck paper orientation and compatible thermal paper before suspecting the print mechanism.

Paper feeds crooked, slips, or repeatedly jams:
Suspect alignment, door seating, paper condition, or internal feed mechanism problems.

Expected: The failure pattern is narrowed without internal disassembly.

Review Available Device Status and Service Information

Check for:

Record exact messages rather than paraphrasing them.

Expected: Any broader device condition associated with the printer failure is identified.

If a Service indication or additional unresolved fault is present: Remove the device from service and escalate.

Perform Required Post-Troubleshooting Verification

After any apparent correction:

Stryker publishes a LIFEPAK 35 Performance Inspection Procedure, and its inspection documentation includes printer output as a method for waveform verification.

Expected: Printer operation is repeatable and the device passes required verification.

If printer performance remains intermittent: Do not return the unit to service based on one successful print.

If the Problem Persists

If correct paper, proper loading, paper orientation, accessible obstruction, printer-door seating, controlled restart, and known-good paper have been ruled out, the problem is likely internal to the printer assembly, feed mechanism, printer interface, wiring, or associated electronics.

The device should be:

Do not proceed into deep printer disassembly or board-level repair unless specifically authorized, trained, and working under approved Stryker service procedures.

Knowing when external causes have been eliminated and when to stop is proper troubleshooting. Stryker’s current LIFEPAK 35 service manual is the appropriate model-specific reference for authorized service work beyond these checks.

Clinical Use Tip

Never troubleshoot printer feeding while the LIFEPAK 35 is actively supporting a patient. Move clinical care to another verified device first when printer availability is required for safe workflow or documentation.

A printer problem should also not distract from verifying that the defibrillator remains fully ready for emergency monitoring and therapy.

Work Order Documentation (CCR Method)

CCR = Complaint, Cause, Resolution

Complaint

What was reported by the clinical staff.

Example:
"Clinical staff reported the LIFEPAK 35 printer would not print and paper failed to advance when a print was requested."

Cause

What was observed during troubleshooting.

Example:
"Found the thermal paper roll incorrectly seated and binding at the printer compartment exit, preventing consistent paper feed."

Resolution

What action was taken.

Example:
"Reloaded compatible printer paper correctly, confirmed secure printer-door closure, and verified multiple successful print cycles with consistent paper advance and visible output."

Helpful Details to Include (If Known)

Final Thought

Printer troubleshooting should begin with patient safety, paper condition, loading, orientation, accessible obstructions, and repeatable testing before internal failure is assumed. Escalating an intermittent or unresolved feed problem protects device readiness, and clear CCR documentation preserves exactly what was reported, found, and verified.

That is successful troubleshooting.

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