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HP Designjet H Series Products - Vertical and Cross-Hatch Banding Troubleshooting Checklist

General power and site requirements
The HP Designjet H series and HP Scitex FB910 are computer-controlled inkjet printing devices and as such require a clean and stable power source. Facility power should be installed by a qualified electrician and meet at least the minimum standards of the local electrical codes.
Indications of a power problem
Spontaneous reboots of the printer, control panel lock-ups during operation or shut-down, or other unexpected events involving the computer control system of the printer can be indications that site power is not stable. The UV lamp systems are also heavily dependent on a steady input voltage for normal operation.
Designjet H Series
Main AC Input to Printer
The Site Preparation Guide, document c01755138, defines the electrical AC Input requirements for this printer:
  • AC Input: 200-240 VAC, single phase, 50/60 Hz, 16 Amps maximum
  • Required electrical circuit:
    • 200-240 VAC, 20 Amps, with NEMA L6-20R locking wall receptacle (North America and Japan)
    • 200-240 VAC, 16 Amps, single phase, with IEC 60309 wall receptacle (Europe)
  note:
NOTE: In North America, if your building is wired with three phase power, note that the printer will use only two of the three phases. This means that your building’s three phase power transformer may have an unbalanced load. Check with your electrician to verify that your building has sufficient capacity for this unbalanced load.
The AC Input to the printer must be clean and steady at the specified voltage and frequency. If the printer AC Input requirements cannot be met, i.e., the site is subject to power brownouts and blackouts, or surges, HP recommends the purchase of a back up power system to ensure the AC Input Power to the printer is continuously within spec.
In order to withstand short duration power brownouts and blackouts, HP recommends you use an uninterruptible power supply (UPS). Select an UPS capable of sourcing a minimum of 3000 VA, at a voltage in the range of 200-240 VAC, 50/60 Hz, 12 Amps. You will want to ensure the UPS you select has the proper plug and receptacle. Connect the UPS AC power input to the wall outlet. Connect the HP printer AC power input to the UPS AC power output.
Optional auxiliary AC Input for printhead vacuum system
The Site Preparation Guide, document c01755138, defines the electrical AC Input requirements for this auxiliary system:
  • A supplied 24 volt DC power supply with universal adapters, connected from the 24 VDC jack on the vacuum/pressure assembly to either of two options
    • Wall outlet — 100-240 VAC, 50/60 Hz, provides temporary power to the vacuum system when it is necessary to remove power from the printer for service.
    • UPS — customer-supplied uninterruptible power supply, output 100-240 VAC, 50/60 Hz, minimum of 15 watts of power, provides battery backup to the vacuum system in the event of a power failure. UPS is connected to the electric wall outlet.
FB910
Main AC Input to Printer
The Site Preparation Guide, document c01668175, defines the electrical AC Input requirements for this printer:
  • AC Input: 200-240 VAC, three phase (3ö), 50/60 Hz, 16 Amps maximum
  • Required electrical circuit:
    • 200-240 VAC, 20 Amps, 3ö, with NEMA L21-20R locking wall receptacle (North America/Japan)
    • 200-240 VAC, 16 Amps, 3ö, 50 Hz, with 5-pin IEC 60309 wall receptacle (Europe)
See the Site Preparation Guide for full details on wiring and illustrations of the required receptacles.
In North America and other sites with 60Hz AC Input, the “Phase Perfect” Digital Phase Converter Model DPC-A10 may be used to convert single-phase 200-240 VAC to 3-phase 200-240 VAC suitable for use with the printer. See the Site Preparation Guide for full details and illustrations.
The AC Input to the printer must be clean and steady at the specified voltage and frequency. If the printer AC Input requirements cannot be met, i.e., the site is subject to power brownouts and blackouts, or surges, HP recommends the purchase of a back up power system to ensure the AC Input Power to the printer is continuously within spec.
In order to withstand short-duration power brownouts and blackouts, HP recommends you use an uninterruptible power supply (UPS). The UPS must be an online type (vs. stand-by type), also known as a double-conversion UPS, with a switchover time of 0 (zero) seconds. To support the entire printer, a 3- phase UPS capable of sourcing a minimum of 8000 VA, at a voltage in the range of 200-240 VAC, 50/60 Hz, 16 Amps maximum per phase. Ensure that the UPS you select has the proper plug and receptacle (see the printer Site Preparation Guide for details). Connect the UPS AC power input to the wall outlet. Connect the HP printer AC power input to the UPS AC power output.
Optional auxiliary AC Input for vacuum system
The Site Preparation Guide, document c01668175, defines the electrical AC Input requirements for this auxiliary system:
  • Supplied 24 volt DC power supply with universal adapters, connected from the auxiliary power jack on the vacuum/pressure assembly to one of the following:
    • Printer’s patch panel power outlet (configuration as shipped) — if the power cord to the printer is removed, power to the vacuum system is removed. If the printer standby power switch is switched off, but the power cord is not removed, power to the vacuum system is preserved.
    • Wall outlet — 100-240 VAC, 50/60 Hz, provides temporary power to the vacuum system when it is necessary to remove power from the printer for service.
    • UPS — customer-supplied uninterruptible power supply, output 100-240 VAC, 50/60 Hz, minimum of 15 watts of power, provides battery backup to the vacuum system in the event of a power failure. UPS is connected to the electric wall outlet. This UPS may be the stand-by type.
List of Abbreviations
Abbreviation
Meaning
AC
Alternating Current
DC
Direct Current
Hz
Hertz
IEC
Internation Electrotechnical Commision
NEMA
National Electrical Manufacturing Association
UPS
Uninterruptible Power Supply
UV
Ultra-Violet
VA
Volt-amperes
VAC
Volts Alternating Current
VDC
Volts Direct Current

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