12 Maintenance
12.1 Recommended maintenance schedule
Prior to working on the unit or in case of danger, disconnect it from the mains.
The recommended maintenance intervals are based on using the unit for 25 intraoral images per day
and 220 working days per year.
Maintenance
interval
Maintenance work
Annually
❯
Visually inspect the unit.
❯
Check the PSPs for scratches and replace them, if necessary.
❯
Remove dust and dirt from accessible parts.
❯
Carry out a system check.
Every 3 years
❯
Exchange the cartridges.
12.2 Check image quality
To assure the image quality, the unit must be subjected to maintenance (see "12.1 Recommended
maintenance schedule") and regular cleaning and disinfection (see "11 Cleaning and disinfection") and
the image quality of the PSP and X-ray system need to be checked.
Inspection inter-
val
Work
Daily / before each
use
❯
Clean the PSP, if necessary.
❯
Check the PSP for scratches. If there are scratches on the surface, take a
homogeneous test image (see "Check the PSP with a homogeneous test
image"), replace the PSP, if applicable.
❯
Keep an eye on the image quality with each X-ray image taken, also refer to
"13.1 Poor X-ray image".
Monthly
❯
Take a homogeneous test image of the PSP (refer to "Check the PSP with a
homogeneous test image"). If scratches or artifacts are visible in the image that
may possibly have an adverse effect on the diagnostics, replace the PSP.
Every 3 months
❯
Check X-ray system.
❯
Take an X-ray image with a 2D X-ray test phantom. Check the image for
homogeneity, resolution, contrast and artifacts, refer to "Check X-ray system".
Usage
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