Printers, scanners, copiers, and multifunction devices (MFPs) were registered under IS 13252 and must transition to IS/IEC 62368-1:2023. This guide covers the specific considerations for this product category.
Laser printers present unique safety challenges because of the high-voltage scanning assembly (laser scanning unit/LSU). This internal component operates at several thousand volts to charge the photoreceptor drum. IS/IEC 62368-1:2023 evaluates the insulation and safeguards around this high-voltage internal circuit. The key requirement: even though the high voltage is internal, the insulation must prevent ES3 hazardous energy from reaching accessible parts during normal and single-fault conditions.
The fuser unit in laser printers operates at temperatures of 150-200°C. IS/IEC 62368-1:2023 requires that thermal hazards from the fuser are contained. Accessible surfaces (paper output tray, housing) must not exceed limits even during continuous high-volume printing. The safety door interlocks that cut power to the fuser when the paper jam door is opened are particularly important under the thermal hazard requirements.
Inkjet printers are electrically simpler and typically transition smoothly. Laser printers require more detailed evaluation of the high-voltage and fuser assemblies. Budget additional testing time for laser printer migration.
Printers, particularly laser printers with their high-voltage assemblies, are significant sources of electromagnetic interference. IS/CISPR 22 or equivalent EMC compliance is required separately from IS/IEC 62368-1:2023 safety compliance.