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HP Scitex LX850 and LX820 Printer Series - Safety precautions

Before using your printer, read the following safety precautions to make sure you use the equipment safely.
Users are expected to have appropriate technical training and experience necessary to be aware of hazards to which that person may be exposed to in performing a task and to take appropriate measures to minimize the risks to that person or other persons.

General safety guidelines

  • Refer to installation instructions before connecting the printer to the supply.
  • There are no operator-serviceable parts inside the printer. Refer servicing to qualified service personnel.
  • Turn off the printer, using both Branch Circuit Breakers located in the building's Power Distribution Unit (PDU), and call your service representative in any of the following cases:
    • The power cord is damaged.
    • Liquid has entered the printer.
    • There is smoke or an unusual smell coming from the printer.
    • The printer has been dropped or the drying or curing module damaged.
    • The printer's built-in Residual Current Circuit Breaker (Ground Fault Circuit Interrupter) has been repeatedly tripped.
    • Fuses have blown.
    • The printer is not operating normally.
  • Turn off the printer using both Branch Circuit Breakers in either of the following cases:
    • During a thunderstorm
    • During a power failure

Electrical shock hazard

  warning:
The internal circuits and drying and curing modules operate at hazardous voltages capable of causing death or serious personal injury.
Turn off the printer using both Branch Circuit Breakers located in the building's Power Distribution Unit (PDU) before servicing the printer. The printer must be connected to earthed mains outlets only.
To avoid the risk of electric shock:
  • Do not attempt to dismantle the drying and curing modules or the electrical control cabinet.
  • 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, 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 test on a yearly basis. The procedure is as follows:
  1. Switch off the printer from the Front Panel (do not switch off the printer from the mains switch or the circuit breakers).
  2. When the printer is switched off, test that the RCCB functions correctly by pressing the test button.
    • If the RCCB does not trip when the test button is pressed, this indicates that the component has failed. The device must be replaced for safety reasons, call HP Support to remove and replace the RCCB.
    • If the RCCB trips, this indicates it is working correctly, return the printer to the original status and switch the printer on.

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.
  • 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 information detailed in the Site Preparations documentation.
  • 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 250°C (482°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.

Mechanical hazard

The printer has moving parts that could cause injury. To avoid personal injury, take the following precautions when working close to the printer.
  • Keep your clothing and all parts of your body away from the printer's moving parts.
  • Avoid wearing necklaces, bracelets and other hanging objects.
  • If your hair is long, try to secure it so that it will not fall into the printer.
  • Take care that sleeves or gloves do not get caught in the printer's moving parts.
  • Avoid standing close to the fans, which could cause injury and could also affect print quality (by obstructing the air flow).
  • Do not touch gears or moving rolls during printing.

Heavy substrate hazard

Special care must be taken to avoid personal injury when handling heavy substrates.
  • Handling heavy substrate rolls always requires two people. Care must be taken to avoid back strain and/or injury.
  • Always use a forklift, pallet truck or other handling equipment to lift substrates.
  • Always wear personal protective equipment including boots and gloves.

Ink handling

Your printer does not use solvent inks and does not have the traditional problems associated with them. However, HP recommends that you wear gloves when handling ink system components.

Warnings and cautions

The following symbols are used in this manual to ensure the proper use of the printer and to prevent the printer from being damaged. Follow the instructions marked with these symbols.
  warning:
Failure to follow the guidelines marked with this symbol could result in serious personal injury or death.
  caution:
Failure to follow the guidelines marked with this symbol could result in minor personal injury or damage to the product.

Warning labels

Label
Explanation
Current leakage may exceed 3.5 mA.
See installation instructions before connecting to the supply. Ensure that the input voltage is within the printer's rated voltage range. The printer requires two dedicated lines, each protected by a branch circuit breaker according to site Preparation Requirements The printer must be connected to earthed mains outlets only.
Identifies the Protective Earth (PE) terminal. It is located inside the electrical control cabinet.
Electric shock hazard. The printer has two mains supplies. There are no operator-serviceable parts inside the printer. In case of operation of the fuse, parts of the printer that remain energized may represent a hazard during servicing. Refer servicing to qualified service personnel. Turn off the printer using both Branch Circuit Breakers located in the building's Power Distribution Unit (PDU) before servicing. See installation instructions before connecting to the supply.
Danger of electric shock. In case of operation of the fuse, parts of the printer that remain energized may represent a hazard during servicing. Therefore, ensure that the printer is completely turned off before servicing.
Risk of burns. Do not touch the internal enclosures of the printer's drying and curing modules.
You are recommended to wear gloves when handling ink cartridges, printhead cleaning cartridges and the printhead cleaning container.
When substrate has been loaded, the carriage descends into its normal position, and could crush your hand or anything else left underneath it.
Danger that your hands may become trapped between gearwheels
When the printer is printing, the printhead carriage travels back and forth across the substrate.
Beware of this moving part.

Emergency stop buttons

There are four emergency stop buttons distributed around the printer. If an emergency occurs, simply push one of the emergency stop buttons to stop all printing processes. A system error message is displayed on the front panel, and the fans turn at maximum speed. Ensure that all emergency stop buttons are released before restarting the printer.