Hi Everyone
Ever since Knoppix 7.0 I have been unable to install the proprietary plugin from HP that is needed for my HPLaserjetP1102W printer to work. But finally I have found the answer, at leatst for Knoppix 7.4. At least it's a way to get the plugin downloaded and installed and the printer working.This is simply to change the ENV variable LANG, from the LANG=en_US.UTF8.UTF8, which Knoppix sets it to after a USB or a HD install to the simpler value LANG=en_US.UTF8 and then the plugin will download and install perfectly using the Bash command:
hp-setup -i -a
and the way to do this is to add a line to your /etc/bash.bashrc file:
export LANG=en_US.UTF8
and reboot [before you try installing the plugin]
How this ENV variable with the odd extra .UTF8 inserted has gone apparently undetected and uncorrected for so long I don't know, but it's great to finally have a working printer with Knoppix again.
DELL PowerEdge R630 8SFF Server 2x E5-2650v4 2.2GHz =24 Cores 32GB H730 4xRJ45
$240.00
Dell PowerEdge R620 Server 2x E5-2660 v2 2.2GHz 20 Cores 256GB RAM 1x 480GB SSD
$139.99
DELL R630 SERVER 8 x 2.5'' 2X E5-2680V4 32GB RAM IDRAC ENT & NDC 2X 495W PSU
$169.95
Dell PowerEdge R730XD 28 Core Server 2X Xeon E5-2680 V4 H730 128GB RAM No HDD
$389.99
Dell PowerEdge R620 Server - 256GB RAM, 2x8cCPU, 120Gb SSD/3x900Gb SAS, Proxmox
$320.00
Dell PowerEdge R720xd 26HDD 300gb 2.5-inch E5-2697 X 2CPU 384RAM 7.2 Tb HDD 
$180.00
Dell Poweredge R730xd 3.5 2x E5-2690 v3 2.6ghz 64gb H730 14x Trays 2x 1100w
$489.99
Dell PowerEdge R630 Server 2x E5-2630v3 2.40Ghz 16-Core 32GB H730
$300.55
DELL PowerEdge R730 Server 2x E5-2698v4 2.2GHz =40 Cores 128GB H730 4xRJ45
$601.00
Dell Poweredge R720xd 2x Xeon E5-2670 2.6GHz 16-Cores 64gb H710p 26x Trays
$339.99