AGFA Drystar 4500M
AGFA · Model Drystar 4500M
High-resolution, High-throughput Dry Hardcopy System. The AGFA Drystar 4500M is a high-resolution, high-throughput Dry Hardcopy System dedicated to Digital Mammography. High-resolution of 508 pixels per inch. The Drystar 4500M printer uses a special Drystar Mammo film specially developed and optimized for mammography. The most subtle grey-level changes required for mammography application can be visualized. Dual film trays. Top tray 8x10" film. Bottom tray can be configured for either 8x10" or 10x12" film.
Key tips
- ·Never bypass a radiation interlock to "just get the image" - this is one of the few true zero-tolerance rules in BMET work.
- ·Trend image-quality phantom results over time - drift shows up before an outright failure does.
- ·Portable/mobile units take real physical abuse from transport - check wheel locks and cable strain reliefs more often than fixed units.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Poor print quality
HighSymptoms: Density too light / dark, banding, streaks, non-uniform image, blotches.
Root cause: Print head / laser optics contamination, film / cartridge issue, or density-calibration drift.
Film jam / transport fault
MediumSymptoms: Film jams in the pick-up or transport, mis-feeds, or multi-feeds.
Root cause: Worn pick-up rollers, a transport-roller fault, or a mis-loaded film cartridge.
Density / calibration fault
MediumSymptoms: Prints do not match the reference, calibration fails, densitometer error.
Root cause: Internal densitometer or the calibration routine.
DICOM / queue fault
MediumSymptoms: Jobs stuck in the queue, printer offline to modalities, association failures.
Root cause: Network / DICOM configuration or the controller board.
Thermal head / laser fault
MediumSymptoms: Whole-image defect, print-engine error.
Root cause: Thermal print head or the laser / optics module.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Pick-up / transport rollers
Class Periodic replacementRel. cost $$R&R Moderate
Thermal print head / laser optics
Class Periodic replacementRel. cost $$$R&R Difficult
Internal densitometer
Class Major service partRel. cost $$R&R Moderate
Controller / network board
Class Major service partRel. cost $$R&R Moderate
Film (media)
Class ConsumableRel. cost $$R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Pick-up / transport rollers | Periodic replacement | $$ | Moderate |
| Thermal print head / laser optics | Periodic replacement | $$$ | Difficult |
| Internal densitometer | Major service part | $$ | Moderate |
| Controller / network board | Major service part | $$ | Moderate |
| Film (media) | Consumable | $$ | 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.
- ·Daily QC per modality: image-quality phantom test
- ·Tube and detector inspection
- ·Annual state-required radiation safety survey
- ·Vendor-scheduled preventive maintenance
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Detector not connecting / images not received / link drops
- Check the detector battery charge (wireless) or reseat the tether.
- Confirm the Wi-Fi access point, channel and range.
- Reboot the detector and the acquisition workstation.
- Try a known-good detector if the site has one.
- Escalate a confirmed detector-electronics fault to the OEM.
Symptom: Fixed-pattern artefacts / non-uniformity / dead pixels or lines / failed calibration
- Run the detector gain / offset calibration and the dead-pixel map.
- Inspect the detector for drop / crush damage.
- Expose a uniform phantom and check uniformity.
- Confirm the generator and AEC are within spec with an X-ray analyser.
- Exchange the detector if calibration will not hold.
Symptom: No or inconsistent exposure / generator error / kV-mAs inaccuracy
- Note the exact generator error / fault code.
- Confirm the mains supply is within the generator's spec (line-voltage compensation).
- Check the HT cables and the exposure contactor.
- Confirm the tube is not in a thermal lockout.
- Escalate a confirmed inverter / HV-tank / tube / filament fault; verify output with an analyser after any repair.
Symptom: AEC (phototimer) images consistently over- or under-exposed
- Verify the AEC response with a phantom at two thicknesses.
- Check the AEC chamber connections and the selected chambers / density.
- Recalibrate the AEC per the service procedure.
- Compare against a manual technique.
- Replace the AEC chamber if it will not calibrate.
Symptom: Tube stand / table / wall bucky will not track, detent or auto-position
- Check the drive, brake, detents and counterbalance for that axis.
- Inspect the position encoder / potentiometer.
- Check the auto-positioning interface and cabling.
- Adjust or replace the brake / drive hardware.
- Confirm smooth motion and reliable detents / SID.
Technical Specs
- Height
- 92 cm
- Throughput
- 70 films/hour 8 x 10”, 50 films/hour 10 x 12”
- Length
- 72 cm
- Film Drawers
- Up to 2
- Power Requirements
- 100-240 VAC
- Weight
- 95 kg
- Time to First Film
- 45 sec at 70 films/hour
- Width
- 55 cm
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Radiology / Imaging department
- Emergency Department (portable units)
- Operating Room (C-arms)
- Cath lab
- Bedside ICU (portable X-ray)
Documents & Manuals
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