Laser printer preventive maintenance — Which component is typically replaced or vacuumed to control ozone and toner accumulation?

Introduction / Context:
Laser printers produce ozone due to high-voltage coronas/rollers and can accumulate fine toner dust. Preventive maintenance schedules include replacing consumables and filters to maintain print quality and safety.

Given Data / Assumptions:

• Standard office laser printer with a serviceable ozone filter.
• Technician performing routine PM with proper ESD/toner safety procedures.
• Goal: identify the component routinely replaced or vacuumed for ozone/toner management.

Concept / Approach:

Many service manuals specify periodic replacement or cleaning of the ozone filter, which traps ozone and fine particulates. While toner cartridges are replaced when empty or per yield spec, the ozone filter is specifically tied to PM intervals to mitigate ozone emission and protect internal components.

Step-by-Step Solution:

Verification / Alternative check:

Vendor PM kits often include ozone filters and specify replacement intervals based on page counts or time.

Why Other Options Are Wrong:

Scanning mirrors should not be vacuumed (risk of damage and coating scratches). Toner cartridges are replaced for yield, not to control ozone specifically. “All of the above” is incorrect because not all items are vacuumed/replaced for ozone and it can be unsafe for optics.

Common Pitfalls:

Using a household vacuum (toner is too fine and can pass through filters or damage the vacuum); failing to wear a mask when handling heavy toner contamination; touching the mirror or drum with bare hands.

Final Answer:

Ozone filter.