Electrical shock hazard
WARNING! The internal circuits, the drying and curing modules and the Vapor removal thermal blankets
operate at hazardous voltages capable of causing death or serious personal injury.
Turn o the printer using the Branch Circuit Breakers located in the building's Power Distribution Unit (PDU)
before servicing the printer. The printer must be connected to earth at mains outlets only.
To avoid the risk of electric shock:
●
Do not attempt to dismantle the drying and curing modules, the e-cabinet or the Vapor removal thermal
blankets during hardware maintenance tasks. In that case, follow the instructions strictly.
●
Do not remove or open any other closed system covers or plugs.
●
Do not insert objects through slots in the printer.
●
Test the functionality of the Residual Circuit Breaker (RCCB) every year (refer to the procedure below).
NOTE: A blown fuse may indicate malfunctioning electrical circuits within the system. Call your service
representative (see HP Customer Care Centers on page 10), and do not attempt to replace the fuse yourself.
Checking the functionality of the Residual Circuit Breakers (RCCBs)
Following standard Residual Current Circuit Breaker (RCCB) recommendations, it is recommended that the
RCCBs are tested on a yearly basis. The procedure is as follows:
1. Turn o the built-in computer using the Internal Print Server’s Shutdown button (or, in Print Care, select
Printer tools > Power options > Shutdown). Do not turn o the printer from the mains switch or the
circuit breakers.
CAUTION: The shutdown process takes some time to complete. Wait until the green Power Enabled
light is o before proceeding.
2. Once the computer is o, test that the RCCB works correctly by pressing the test button.
●
If the RCCB does not trip when the test button is pressed, this indicates that it has failed. The RCCB
must be replaced for safety reasons; call your service representative to remove and replace the
RCCB.
●
If the RCCB trips, this indicates it is working correctly; reset the RCCB to its normal on state.
Heat hazard
The drying and curing subsystems of the printer operate at high temperatures and can cause burns if
touched. LED's array (optional) supports , beam and enclosures can reach high temperatures. To avoid the risk
of burns, take the following precautions:
●
Do not touch the internal enclosures of the printer's drying and curing modules and vapour removal
thermal blankets.
●
Take special care when accessing the substrate path.
●
Take special care with zones marked with warning labels.
●
Do not place objects covering LED's arrays supports, beam and enclosures.
●
Do not attempt to modify LED's array supports, beam and enclosures;
●
Remember to let the printer cool down before performing some maintenance operations.
2 Chapter 1 Safety precautions ENWW
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