HP Designjet L25500 Printer series - Manual (Page 6)

● Do not insert objects through slots in the printer.
● Test the functionality of the Residual Circuit Breaker (RCCB) every 6 months (refer to the
Maintenance Guide for details).
NOTE: A blown fuse may indicate malfunctioning electrical circuits within the system. Call your service
representative, and do not attempt to replace the fuse yourself.
Checking the functionality of the Residual Circuit Breaker (RCCB)
Following standard Residual Current Circuit Breaker (RCCB) recommendations, it is recommended that
the RCCB is tested every 6 months, refer to the Maintenance and Troubleshooting guide for details on
the procedure.
Heat hazard
The drying and curing subsystems of the printer operate at high temperatures and can cause burns if
touched. To avoid personal injury, take the following precautions.
● Do not touch the internal enclosures of the printer's drying and curing modules. Even after opening
the window latch that disconnects drying and curing power, the internal surfaces could be hot.
● Take special care when accessing the substrate path.
Fire hazard
The drying and curing subsystems of the printer operate at high temperatures. Call your service
representative if the printer's built-in Residual Current Circuit Breaker (Ground Fault Circuit Interrupter)
is repeatedly tripped.
To avoid the risk of fire, take the following precautions.
● Use the power supply voltage specified on the nameplate.
● Connect the power cords to dedicated lines, each protected by a branch circuit breaker according
to the rating of the wall socket. Do not use a power strip (relocatable power tap) to connect both
power cords.
● Use only the power cords supplied by HP with the printer. Do not use a damaged power cord. Do
not use the power cords with other products.
● Do not insert objects through slots in the printer.
● Take care not to spill liquid on the printer.
● Do not use aerosol products that contain flammable gases inside or around the printer.
● Do not block or cover the openings of the printer.
● Do not attempt to dismantle the drying or curing module, or the electrical control cabinet.
● Ensure that the operating temperature of the substrate loaded recommended by the manufacturer
is not exceeded. If this information is not available by the manufacturer, do not load substrates that
cannot be used at an operating temperature under 125°C (257°F).
● Do not load substrates with auto-ignition temperatures below 300°C (508°F). See note below.
NOTE: Test method based on EN ISO 6942:2002; Evaluation of materials and material assemblies
when exposed to a source of radiant heat, method B. The test conditions, to determine the temperature
when the substrate starts ignition (either flame or glow) were: Heat flux density: 30 kW/m2, Copper
calorimeter, K type thermocouple.
2 Chapter 1 Introduction ENWW
Introduction