Different items require different maintenance approaches, and projection screens are no exception. It is widely recognized that projection screens and projectors function as complementary components. Therefore, the upkeep of projection screens deserves as much attention as the projectors themselves. Below is a guide to maintaining projection screens based on their type and material, with tailored cleaning methods.

1. Metal and Glass Bead Screens:
   Most metal and glass bead screens are mold-resistant, flame-retardant, and cleanable. However, it is still essential to prevent excessive dust and moisture. The recommended cleaning method is to gently dust the surface with a soft-bristled brush. Excessive washing may reduce the screen’s gain performance.
2. Glass Bead Screens:
   The surface of glass bead screens often features textured patterns or vertical grooves. Avoid cleaning with water. Instead, use a soft cloth or feather duster to wipe gently along the direction of the texture. Apply minimal pressure to prevent damaging the surface. If necessary, a slightly damp cloth can be used for wiping, but the screen must be dried immediately afterward.
3. Manual and Electric Screens:
   When not in use, roll the screen back into its protective case. After each use, inspect the surface for dust or stains. If any are found, wipe the screen gently with a soft cloth before retracting it. Although frequent use is acceptable, avoid continuously rolling the screen up and down for more than five minutes at a time to prevent the motor from overheating. If repeated operation is needed, allow the motor to cool down first. Note that the motor does not require lubrication.

Ten Additional Tips for Screen Maintenance:

1. Before retracting the screen, ensure the surface is free of dust and foreign particles.
2. Avoid operating the screen continuously for more than five minutes to prevent motor overheating.
3. Allow the motor to cool down between extended uses.
4. Do not fold glass bead screens or touch them with fingers or sharp objects to avoid damage.
5. Use a feather duster to remove dust. For stubborn stains, lightly dab with a water-dampened cotton ball.
6. Fabric-based white plastic screens can be gently wiped with a moist cloth.
7. Handle spring-rolled screens carefully to avoid impact or deformation.
8. Should any abnormality occur during operation, stop immediately and troubleshoot.
9. Do not disassemble electric screens yourself to prevent unnecessary damage.
10. Electric motors do not require lubricants.

Choosing Cleaning Agents:
It is crucial to use pH-neutral cleaning solutions. Since most screen surfaces are coated with resin or rubber-based materials, they are susceptible to corrosion and discoloration from harsh chemicals. Avoid oil-based or glossy cleaners such as furniture polish. Instead, opt for water-based, evaporative foam cleaners that are safe for screen surfaces.

Selecting Cleaning Tools:
The right cleaning tools are arguably more important than the cleaning agents themselves. Under magnification, screen surfaces appear uneven, with tiny pits that can trap dust particles. Standard cotton cloths often fail to clean effectively because their fibers are too large to reach into these micro-indentations. Therefore, it is advisable to use tools with fine molecular structures, such as micro-fiber sponges, which can access and remove dirt from the pores once the stain has been softened by a cleaning agent.

For challenging stains, especially oily marks, extreme caution is required. Use a small amount of oil-removing solvent applied with a cotton ball to quickly break down the stain, then rinse immediately with purified water or a neutral cleaner before blotting dry. Special care should be taken with materials like DA-TEX and DA-MAT flexible screens, as their thin structure makes them vulnerable to damage during cleaning. Stains from spray-on colorants used at festive events are particularly difficult to remove. In such environments, it is best to retract the screen when not in use to avoid accidental damage.