Cassettes and intensifying screens are part of the film system. Dirt, damage, poor contact or incorrect assembly can contribute to image artifacts or inconsistent results. Care must match the specific cassette and screen materials; follow their manufacturer’s instructions and the approved procedure.
Inspect before use
Check cassette faces, hinges, latches, seals and internal surfaces for damage, contamination or wear. Confirm that the cassette closes securely and that the screen pair is the specified type and orientation. Look for dents, creases, scratches, peeling, corrosion or visible contamination on screens. Remove damaged equipment from use and label it for evaluation rather than masking a known issue.
Clean without damaging the surfaces
Use only the cleaning products, cloths and method permitted by the cassette or screen manufacturer. Abrasive pads, unapproved solvents, excessive pressure and sharp tools may permanently damage a screen or seal. Allow surfaces to dry fully before loading film. Keep cleaned items protected from dust and handle screens by the edges when practical.
Check contact and image artifacts
Ensure the cassette closes evenly and the film-screen arrangement matches the approved technique. If the image shows unusual localized density, blur or a repeating mark, compare its location with the cassette and screen surfaces. Use a controlled check exposure or contact test only when specified by the equipment maker or site procedure. Do not infer a universal acceptance limit from an informal test.
Maintain traceable care records
Record routine cleaning, inspection, repairs and removal from service according to the site equipment-control system. Identify each cassette and screen set so recurring artifacts can be traced to equipment. Store them flat or in the orientation recommended by the maker, protected from dust, moisture, heat and mechanical damage.
Simple care checklist
- Correct cassette and screen set confirmed for the job.
- Faces, seals, closures and screen surfaces checked.
- Cleaning method approved for the material.
- Equipment dry and protected before loading film.
- Damage or recurring image marks reported and traced.
Screen type, material and thickness are technique-dependent. Never change a specified screen arrangement or repair a damaged screen informally; consult the approved procedure and equipment supplier.