HP in the United States has launched an aggressive campaign to entice owners of other brands of wide-format inkjet printer to make the switch to one of HP's new 8-ink or 11+1-ink printer models. The HP Extreme Upgrade program offers a rebate of between US$500-US$1000 plus between US$300-US$500 worth of paper when a Designjet Z2100- or Z3100-series printer is purchased.

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