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HP Indigo WS6000 Digital Press - Safety

Overview

The safety information and procedures described in this chapter apply to operators and other personnel working on or near the HP Indigo WS6000 Digital Press. The safety procedures cover the press and the area immediately surrounding the press.
Use the following guidelines:
  • The press must only be operated by personnel trained by HP or its authorized agents who are thoroughly familiar with all the safety and maintenance procedures of the press.
  • Before you attempt to use the press, read and understand the safety procedures, including environmental protection procedures.
note:
Call a customer care center for service and repair of the press. Do not attempt to service or repair the press.
The HP Indigo WS6000 Digital Press is NRTL approved and marked for use in the USA and Canada.
Notice for the European Union:
This product complies with the following EU directives:
  • The Low Voltage Directive 2006/95/EC
  • The Machinery Directives 2006/42/EC
  • The EMC Directives 2004/108/EC
Compliance with these directives implies conformity to applicable harmonized European standards (European Norms) which are listed on the Declaration of Conformity issued by Hewlett-Packard for this product or product family.
The Declaration of Conformity can be found at www.hp.com/go/certificates
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.
  warning:
Changes or modifications to this equipment not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Warning signs and labels

Warning labels on the press

Warning labels are placed in various locations on the press. Many of the warning labels on the press are behind doors or covers and on parts that may be accessible only to authorized service personnel.
The following symbols appear on warning labels on the HP Indigo WS6000 Digital Press:
Laser Hazard
DANGER. Invisible laser radiation may be present when doors are open and interlocks are defeated. Avoid direct exposure to beam.
Laser Radiation
The lasers in the press emit radiation in the invisible range. The laser unit in the writing head is enclosed in a protective housing and permits exit of the beam only at the writing head window (aperture) to the PIP. Do not insert or allow any reflective objects to be inserted in the path of the writing head window. Do not attempt to clean the writing head window or look into the writing head window while the press is operational.
Electrical Hazard
HAZARDOUS VOLTAGE. Will cause severe or fatal injury. Apply Lockout procedure.
Electrical Hazards
Before you start any maintenance procedure that involves an electrically powered subsystem, make sure the subsystem is disconnected. If you are not sure that the subsystem is turned off, turn off the main power switch. Always follow the lockout procedure.
Live Current Hazard Alert
LIVE PARTS. Will cause severe or fatal injury. Apply Lockout procedure.
Entanglement Hazard Alert
  warning:
Open gears and mechanical parts. Can trap hands, fingers, clothing, and cause serious injury. Stay well clear.
Pinch Hazard Alert
  warning:
Pinch points between rollers, wheels, and other parts can trap hands, fingers, clothing, and cause serious injury. Stay well clear.
Mechanical Hazards
The press has a number of rotating parts and gripping devices (drums, gears, grippers, and so on). Exercise special care when performing any maintenance work around these parts. All repairs must be performed only by authorized customer engineers.
Do not climb into the substrate input or substrate exit for any reason. Doing so could be dangerous.
Hot Surface Hazard
  warning:
Hot surface. Can cause burns. Do not touch.
Heat Hazards
The blanket and ITM drum become very hot during normal operation of the press, with temperatures up to 110° C (230° F). Do not touch the ITM drum or external heater with bare hands. Carelessness may cause burns. Wear thermal insulated gloves. Remove old blankets with needlenose pliers.
The following warnings also appear on the press:
  caution:
To reduce the risk of electric shock, the main disconnect should be locked in the off position before servicing.
DANGER.
Invisible laser radiation may be present when open and interlock defeated. Avoid direct exposure to beam.
  warning:
Hazardous moving parts.
  warning:
Hazardous Voltage. Can cause damage.
  warning:
Hot surface. Can cause burns. Do not touch.
Emergency Stop Button
HIGH LEAKAGE CURRENT: Earth connection essential before connecting supply
MAIN EARTH CONNECTION LOCATED ON MAIN CHASSIS.

Warning signs

Post warning signs that clearly emphasize the dangers involved in operating and maintaining the press. The following warnings are recommended:
  • This press is to be operated by properly trained and qualified operators only.
  • Do not wear ties, other loose clothing, or loose jewelry when operating and maintaining the press.
  • Flammable vapors from heated imaging oil may be present!
  • No smoking, open flame, or sources of ignition allowed!
  • Make sure that the room is properly ventilated at all times. See the HP Indigo WS6000 Digital Press Site Preparation Guide.
  • Danger of pinching and crushing from moving press parts!
  • Keep hands away from moving press parts.
  • Access to Main Power switch must remain free at all times.
  • Do not operate the press with doors open.
  • Ink and imaging oil are irritating to eyes and skin. Use rubber gloves.
  • ITM drum and blanket are hot.
  • External heating lamps are hot.
  • Read and understand the material safety data sheets (MSDS) for consumables used with the press

Safety devices

Material safety data sheets (MSDS)

MSDS are supplied for consumables, including the different HP ElectroInks, imaging oil and the imaging agent, adhesion promoters, and adhesion promoter test fluids. Keep the MSDS readily available in the work area. Read and consult them for your personal protection. Keep the MSDS in a protective plastic cover.

Fire extinguishing equipment

The HP Indigo WS6000 Digital Press generates combustible fumes and is also internally heated, a danger of fire exists. Take the following precautions:
  • Position fire extinguishers in visible locations within 7.6 m (25 ft) of the press and any flammable or combustible material storage areas.
  • Require regular inspection of the fire extinguishers (at least annually) and have designated employees trained in their use. Employees should be retrained at least once a year.

Eye wash stations

The HP Indigo WS6000 Digital Press uses inks and imaging oil that may be irritating to skin and eyes. In extreme cases of exposure, these may cause blindness. Take the following precautions:
  • Install eye wash stations within 7.6 m (25 ft) of areas where the ink and imaging oil are handled, dispensed, or stored.
  • Provide eye wash liquid at eye wash stations (available from most safety supply companies) that complies with ANSI standard Z358. 1–1990.
  • Use safety glasses with side-shields and rubber gloves when handling ink and imaging oil (nitrile disposable gloves are recommended).

Noise levels

During printing, the operator is exposed to a maximum of 75 dBA of audio noise with all service doors and covers closed.

Heat insulating tools

The blanket, ITM drum, and external heating lamps become very hot during normal operation of the press, with temperatures up to 110° C (230° F). Touching these parts could cause burns. Take the following precautions when you work near the ITM drum or when you are replacing the blanket:
  • Wait until the drum cools to below 60° C (140° F) before performing maintenance procedures.
  • Do not place hands on the moving blanket. Use a tool to grip the blanket metal bar.

Electrical safety

The HP Indigo WS6000 Digital Press must be properly grounded at all times. Before operating the press, ensure that it is grounded in conformance with the electrical code standards for your country/region (see the HP Indigo WS6000 Digital Press Site Preparation Guide for recommendations). If in doubt, check with a licensed electrician or with your customer care center.
  warning:
Do not operate the press if it is not properly grounded. Perform a weekly check of grounding cables.
If a cable has to be disconnected or reconnected during a maintenance procedure, you must electrically turn off and lockout the press. Turn off the press by using the main power switch.

Emergency power shutdown

The following can turn off all or some electrical power to the press:
  • Emergency Stop buttons: In an emergency, press one of the red Emergency Stop buttons to stop all mechanical movement in the main engine. Red Emergency Stop buttons on a yellow background are located at both sides of the front door, and in other prominent locations on the press. When pressed, the button stops the press, and turns off electrical power to most system components.
    • To turn off power: press the button down.
    • To restore power: rotate the button clockwise to release.
      Figure : Emergency Stop buttons at front of press
      Figure : Emergency Stop button behind rear utility cabinet door
        caution:
      Some press components continue to receive power after an Emergency Stop button is pressed.
      note:
      Pressing an Emergency Stop button during printing can cause damage to the PIP and blanket.
  • Main supply disconnect switch: The main supply disconnect switch is permanently connected to the press via a conduit. A lockable disconnect device incorporated in the fixed wiring must be readily accessible. The device must be rated according to the specifications shown in the HP Indigo WS6000 Digital Press Site Preparation Guide. This is an isolating device, which can be locked in the Off position to avoid an unexpected startup or release of electrical power during servicing or maintenance.
  • Main power switch: The main power switch is located at the rear of the press. Access the main power switch through the opening near the rear door. Raise the switch cover. Rotate the main power switch to the left position to turn off all electrical power to the press engine.
    The main power switch does not disconnect power to the power distribution unit (PDU).
      Figure : Main power switch
    1. Main power switch at exit side, behind rewinder
    2. Rewinder
    3. Rear utility cabinet door
    Always maintain free access to the main power switch, so that power can be immediately turned off in an emergency.
      caution:
    Always maintain free access to the main power switch, so that power can be immediately turned off in an emergency.
  • Power Enable switch: The Power Enable switch is located on the upper left side of the press. The switch turns off power to the press engine subsystems, except for the computer and ink cabinet. To turn off power, put the Power Enable switch in the off position. To restore power, put the Power Enable switch in the on position.
    Figure : Power enable switch

Door interlocks

The HP Indigo WS6000 Digital Press has interlocked doors and covers that stop the press and turn off electrical power to system devices when these doors and covers are opened.
  warning:
Access to and use of bypass keys is restricted to specifically trained and authorized personnel. Do not disconnect or override any of these safety devices.
Unwinder — the following doors and covers are interlocked:
  • Cover behind front door
  • Exit door
    Printing engine — the following doors and covers are interlocked:
  • Upper feed door
  • Lower feed door
  • Feed—in cover
  • External heater cover
  • Front door
  • Exit door
  • Rear utility cabinet door
  • Drive unit cover
  • Ink cabinet door (disables air compressor to ink cans only)
    Rewinder — no doors or covers are interlocked.
    If any of the doors or covers are opened, the interlock is activated and prevents operation of most devices, such as the high-voltage power supply and the main motor.
    When you open an interlocked door:
  • The press status changes to Off.
  • The schematic illustration indicates that the door is open.
    All opened interlocked doors and covers are indicated by an open lock icon in the user interface

Attention lights

Attention lights are located on the input and exit sides of the printing engine.
Figure : Attention lights
Attention lights consist of three colors that indicate the following when lit:
  • Green light:
    • Always on in Printing (Proof) state
    • Flashing in Getting Ready and Ready states
  • Yellow light:
    • Always on for all errors and for warning LEDs
      Warnings flagged:
    • An ink can is empty
    • Conductivity in one ink tank is high/low
    • Color adjustment is needed
    • Print cleaner is needed
    • Cooler drain is almost full
    • Rewinder roll is almost full
    • Unwinder roll is almost empty
  • Red light:
    • Flashing when the bypass key is inserted

Maintenance safety and emergency procedures

Standby status

Put the press in Standby by pressing the Standby button on the touchscreen when the system is not required to print, or is unattended. The press automatically goes into Standby after it has remained idle for more than 20 minutes.

Inching button

Use the Inching button in maintenance procedures that require inching the drums. If any interlocked doors are open, the press returns to the off state.
Figure : Inching button (feed side)

Inch-safe method

  warning:
Do not perform maintenance on rotating parts (such as drums) with a hand on a moving part while the press is on slow roll (for example, pressing the Inching button).
Health and safety regulations require that you use the inch-safe method for maintenance procedures where the PIP, ITM, and impression drums are required to rotate:
To use the inch-safe method:
  1. Press an Emergency Stop button to put the press into an inactive state with the power on.
  2. Perform the necessary procedure (for example, cleaning).
  3. Release the Emergency Stop button by rotating it. Press the Inching button to inch the press. Immediately press an Emergency Stop button to put the press into a safe state before continuing maintenance.
  4. Continue inching the press, stopping the press (putting it into an inactive state), and servicing the press part until the job is complete.

Press lockout procedure

Health and safety regulations require that you use the following lockout procedure before performing maintenance procedures that do not require drum rotation.
Lockout means either locking an energy-isolating device (for example, a fuse box) to prevent the activation of the press, or unplugging the press, with the plug under the exclusive control of the person performing the service or maintenance.
Use the following lockout procedure whenever there is any risk of unexpected press activation.
To lockout the press:
  1. Disconnect the press from all sources of electrical power by using the Main Power Supply Disconnect switch.
  2. Lock the isolator switch in the off position to avoid an unexpected startup or release of electricity.
  3. Turn off the external Uninterruptable Power Supply (UPS).
  4. Allow 20 seconds for residual stored energy to dissipate after the press is turned off.
  5. Before starting maintenance or servicing, use a power tester to ensure that points that are live when the press is in normal operation are no longer live.

Combustible and flammable liquids and fumes

Because the imaging oil used by the HP Indigo press is combustible (USDOT Class 3A), use the following safety procedures:
  • Operate the press in a well-ventilated room (see the HP Indigo WS6000 Digital Press Site Preparation Guide). The press is equipped with ventilation fans. If they are not functioning, the press enters an error state and the press becomes inoperable.
  • Do not smoke or introduce an external source of ignition (such as pilot lights, open flames, stoves, heaters, or halogen lights). Avoid creating sparks (static, electrical, or mechanical) or introducing any spark-producing equipment within 7.6 m (25 ft) of the press.
  • Clean spills immediately after they occur, and dispose of dampened cleaning materials promptly and properly in accordance with local regulations.

Isopropyl alcohol (IPA)

IPA is a highly volatile and flammable liquid (USDOT Class 1B). Do not apply it to hot surfaces or allow its use near an open flame or sources of electrical sparks.
Use IPA for cleaning specified parts only. Clean with IPA only when the printing engine is off. When you use IPA, wait two to three minutes after application to allow the IPA to evaporate before proceeding. If you cannot tell if the IPA has evaporated, use your finger to feel for wetness.

Handling and storing imaging oil, inks, and IPA

Take the following precautions when handling or storing imaging oil, inks, and IPA:
  • Avoid fire hazards by storing imaging oil, inks, and IPA in fireproof cabinets or a special combustible liquids storage room.
  • Allow only trained personnel to handle imaging oil, inks, and IPA.
  • Keep containers tightly closed at all times. If a container appears damaged, transfer the contents to a dry, clean, and suitable container that can be tightly sealed.
  • When handling imaging oil and inks, wear safety glasses with side shields, long-sleeve overalls, and protective gloves as indicated on MSDS.
  • Keep MSDS in solvent-proof envelopes at the press.
  • Do not ingest imaging oil, inks, IPA, or any waste fluids.
  • Refer to local combustible material handling regulations.

Disposing of consumables and cleaning materials

Dispose of the consumables and cleaning materials that you use in accordance with applicable regulations. Consult with your local authorities to determine the correct manner in which to dispose of the following wastes:
  • Process oily waste bottles
  • Imaging oil and ink
  • Empty HP ElectroInk containers
  • Charge roller
  • Blankets
  • PIPs
  • Cleaning wipes dampened with imaging oil
  • Lint-free wipes or tissue paper contaminated with ink
  • Contaminated chemical-resistant gloves
  • Empty imaging oil containers
  • Oil filters
  • Ozone filters
    note:
    For disposal of items other than those listed, contact your local customer care center.

Waste Bottles

bottles Two bottles used to store waste are located in the lower service door at the rear of the press. These bottles are identified as follows:
  • Waste bottle #1 – Water waste
  • Waste bottle #2 – Process oily waste
    Figure : Waste Bottles (in lower service door at press rear)
  1. Water waste bottle
  2. Process oily waste bottle

Additional information

It you have any questions regarding safe operation of the HP Indigo WS6000 Digital Press, do not continue operation without contacting a customer care center. Additional MSDS are available upon request from your customer care center.

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