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Power Requirements

The following sections describe power requirements for the print engines, the printer control unit, and the Air Bearing Buffer/Flipper Unit.

Power Outlet and Cable Summary

You should plan for one or more outlets, as summarized below.

Infoprint 4100 HS2 and HD3/4:

Infoprint 4100 (all other models) and Infoprint 4000:

Plan for cable lengths when doing your space planning. Figure 25 shows cable lengths for the print engine power cable and the printer control unit power cable.

Figure 25. Power cable lengths for engine and printer control unit

The following sections provide more detailed information about power requirements for the print engine, the printer control unit, and the Air Bearing Buffer/Flipper Unit.

Power - Print engine

Ensure that you have an electrical outlet that supports 12 kVA and meets the power requirements listed in Table 25 for each printer. This outlet must supply 3-phase power and be able to disconnect power from each printer, such as:

Table 25. Basic electrical requirements for the printer
Country AC Voltages Wiring Information Phase Circuit Rating
Nominal Minimum Maximum
U.S.A, Canada 60Hz
208
220
230
240
187
198
207
216
229
242
252
264
4-wire power cable with three phases and ground. Neutral is not required. 3 60 Amperes
Japan 50/60Hz
200
200
180
180
220
220
4-wire power cable with three phases and ground. Neutral is not required. 3 60 Amperes
Europe 50Hz
380
400
415
342
360
374
418
440
456
5-wire power cable with three phases, ground, and neutral. Direct connection of neutral to ground required. 3 30 Amperes
Attention:
The 50-Hz 380/400/415 Volt version does not support non-earthed neutral and impedance-grounded neutral power distribution systems. Installation on an impedance-grounded neutral power system (IT Power System) could result in failures of motors and transformers in the printer.

Power - Printer control unit (Infoprint 4100 HS2 and HD3/4 only)

If an Infoprint 4100 HS2 or HD3/4 is installed, an additional outlet is required to provide power to the printer control unit. The HS2 (simplex) system requires one additional outlet. The HD3/4 (duplex) system requires two additional outlets. You should ensure that appropriate service, including an outlet, is provided. The cables, which are provided, extend 282 cm (9.2 feet) from the control unit.

Table 26. Basic electrical requirements for the printer control unit
Country Hz AC Voltage1 Power Plug Information Phase Circuit Rating
All 50/60 200-208/220/230/240 See Appendix C. Standard Power Plug Listings for descriptions of the power plugs provided. 1 10 Amperes
Notes:
  1. Maximum/minimum limits are 10% above/below nominal voltages.

Power - Air Bearing Buffer/Flipper Unit

If an Air Bearing Buffer/Flipper Unit is installed, an additional outlet is required. You should ensure that appropriate service, including an outlet, is provided. The cable, which is provided, extends 425 cm (14 feet) from the Air Bearing Buffer/Flipper Unit.

Table 27. Basic electrical requirements for the Air Bearing Buffer/Flipper Unit
Country Hz AC Voltage1 Power Plug Information Phase Circuit Rating
All 50/60 200-208/220/230/240 See Appendix C. Standard Power Plug Listings for descriptions of the power plugs provided. 1 2.5 Amperes
Notes:
  1. Maximum/minimum limits are 10% above/below nominal voltages.

Physical installation power and grounding recommendations

Note:
Consult electrical authorities to ensure compliance with local electrical code.
Power recommendations

De-rate facility step-down transformers 50% to handle surge currents and harmonic currents. Assume that the transformer's neutral connection (400V installations) will see two times (2X) the current of any of the phases.

The transformer neutral connection is bonded to earth. Ensure that (1) the connection between earth and transformer is secure, (2) that the grounding rods are in good condition and in good contact with earth, and (3) that the connection distance is the shortest path possible.

To minimize interference between devices in the printing room, separate step-down transformers may be used to feed separate groups of equipment. However, this is not always feasible. To reduce interference, install the transformers as close as possible to the distribution panel and, from the panel, feed every device with its own separate power cord (L1, L2, L3, (N,) E). This will ensure the shortest length of common (shared) wiring.

The power cord neutral wire must be at least as large as the phase wires.

To best balance the loading on the phases of the transformer when more than one printer engine is installed, the phase wires (but not neutral wire) to the printers may be rotated. See Figure 26.

If more than one printer is installed, the power line wires may be rotated to balance the transformer phase loading. In high voltage regions (400V), a neutral wire is present, but is not rotated.

Figure 26. Breaker panel and transformer wiring
Grounding recommendations
Auxiliary power source recommendations

The IBM Infoprint printers are designed to tolerate loss of power without damage. Therefore, backup power sources such as UPS units or other electronic power supplies are not recommended.

The dynamic power consumption of laser printers must be understood if a backup power source is being considered.

  1. Startup power, and current, might exceed five times (5X) the continuous, or average, power. This is highly dependent on the impedance of the facility's distribution system and power source. This surge of power lasts only a few cycles of AC and rapidly falls to its nominal level.
  2. While printing, there are regular changes in current loading as lamps and heaters cycle on and off, and this intermittent, instantaneous power might exceed two times (2X) the average power.
  3. The continuous, or average, power was specified in the preceding sections.

Therefore, the selection of an auxiliary power source must involve careful consideration of these aspects of power consumption, and it is recommended that the manufacturer of such equipment understand these power requirements.