Fujinon EPX-4400
Fujinon · Model EPX-4400
Fujinon's new 4400 System platform, built upon the new "Fully Digital" EPX-4400 processor and light source has been designed to meet the needs of any facility, at any level of care, while offering an advanced product line designed to address research and teaching programs. The 4400 System is the only endoscope system in the world to offer Digital Signal Processing (DSP) in each endoscope, and in the processing platforms. This advancement brings a level of image clarity and resolution unseen in traditional endoscopes. Offering endoscopes with Fujinon's traditional 410,000 pixel CCD, and FujiFilm proprietary Super CCD endoscopes, the 4400 System offers a new level of imaging capability.
Key tips
- ·A failed leak test means the scope does not get reprocessed or used - send it for repair, full stop.
- ·A shortened reprocessing cycle is a real infection-control failure, not a minor deviation - follow AAMI ST91 exactly.
- ·Track light-source lamp-hours against the manufacturer's limit rather than running to failure.
Typical Failure Modes
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Bulb / lamp failure
HighSymptoms: No light output, or dim/flickering output.
Root cause: Xenon or LED lamp module end-of-life.
Fan / cooling fault
MediumSymptoms: Overheat shutdown or thermal alarm.
Root cause: Cooling fan or vent obstruction.
Fiber optic cable wear
MediumSymptoms: Reduced light transmission, dim image at the scope.
Root cause: Fiber bundle damage from flex or connector wear.
Intensity control fault
LowSymptoms: Won't adjust brightness, stuck at one level.
Root cause: Control board or potentiometer fault.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Fiber optic light cable
High-turnover; keep spares.
Class Periodic replacementRel. cost $$R&R Easy
Intensity control board
Class Major service partRel. cost $$$R&R Moderate
Xenon / LED lamp module
Consumable - replace per lamp-hour schedule.
Class Frequent wear itemRel. cost $$$R&R Fairly easy
Cooling fan
Class Periodic replacementRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Fiber optic light cable High-turnover; keep spares. | Periodic replacement | $$ | Easy |
| Intensity control board | Major service part | $$$ | Moderate |
| Xenon / LED lamp module Consumable - replace per lamp-hour schedule. | Frequent wear item | $$$ | Fairly easy |
| Cooling fan | Periodic replacement | $ | Fairly easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Leak testing before each reprocessing cycle
- ·Scope reprocessing per AAMI ST91
- ·Light source lamp-hour tracking
- ·Annual full PM
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Bulb / lamp failure
- Confirm the presentation - typically no light output, or dim/flickering output.
- Check the most likely cause first: xenon or LED lamp module end-of-life.
- Inspect the affected subsystem against the manufacturer's inspection checklist.
- If the fault is confirmed and not a field adjustment, service or replace the xenon / LED lamp module per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Fan / cooling fault
- Confirm the presentation - typically overheat shutdown or thermal alarm.
- Check the most likely cause first: cooling fan or vent obstruction.
- Inspect the affected subsystem against the manufacturer's inspection checklist.
- If the fault is confirmed and not a field adjustment, service or replace the cooling fan per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Endoscopy suite / GI lab
- Operating Room
- Bronchoscopy suite
Documents & Manuals
No documents available for this device yet.
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