Here's a short overview of the problem - Customer with a C7780C Designjet 800PS has a plotter that's stuck in initializing. Cleared EEROM and it errors out now at 1:10. Replaced trailing cable and electronics module, goes to a 1:12 but when I go into service menu there's no model selection like the manual shows and info shows CXXXX for model. Replaced ink supply station (ISS) and now it shows C7769A but still no way to change model. Cleared EEROM but no difference. Posted same in HP forums, one person replied that the book is in error and he's come across it a few times and says that either an ISS or emodule from another C7780C needs to be installed and when the prompt comes up for what was replaced the opposite item is selected - ie if I put in an ISS from a working C7780C and install it in my broken unit I tell it the electronics module was changed so the info from the ISS installed is backed up into the electronics module. Likewise if I put an emodule from a working C7780C I tell the prompt the ISS was replaced so the emodule EEROM info is backed up into the ISS and things should work fine other than changing the serial and usage items. HP Designjet support tells me that if I put a new (refurb'd) electronics module and ISS from the Parts Store that it would fix it too but I don't want to chance it not working and being stuck with $650 more in parts that I can't use. Loading a new ISS from a working plotter sounds like the best option but I have no access to a C7780C unit other than this one.
Anyway the owner decided to junk the plotter and I took it in exchange for the time and materials they would owe me. It's now my plotter and I want to repair it so I can use it for the signage part of our business. Sure I could part it out and make a killing but this plotter I know every inch of and have been the only servicer since it was new so I know it's history.
So the question is - I need either 1) someone that is parting out a C7780C (has to be that exact model) with a good ISS or electronics module that wants to sell either item or 2) someone that owns a working C7780C that would work with me to get an ISS with the proper info into it - has to be a C7780C and I would buy a brand new ISS from HP and ship it to them. They remove their right cover, take their ISS out and install the new one and when the prompt comes up they tell it the ISS was replaced so their info is backed up into the new ISS. From that point they could remove the new one and put their old one in, or leave the new one in their machine and close it up. Whichever unit is left out will have the same model info in EEROM and could be shipped to me. I could then install the unit when it arrives, tell the prompt that the electronics module was installed (even though the ISS was installed) and the ISS EEROM info would be loaded to my present electronics module - then I could set my serial and usage from the service menu. I'd be paying shipping to and from and would even be willing to pay a reasonable fee for the time to do the loading.
So if anyone in the US (or Canada if customs won't be a pain in the butt) has a working C7780C 800PS plotter that has either part for sale from one they are tearing apart, or has the skills with the plotter to do what I need then please email me (rhb57 -at- windstream.net) so we can work something out. Alternately if anyone with a working C7780C within a couple hundred miles of me here south of Louisville, KY would allow me to come to their location and do so I can do that as well. None of my customers has a C7780C so I am unable to do it myself otherwise it would be done already. I hate to have to part this machine out, it has very little use and has been very well cared for and would be so usable for our shop.
Anyway the owner decided to junk the plotter and I took it in exchange for the time and materials they would owe me. It's now my plotter and I want to repair it so I can use it for the signage part of our business. Sure I could part it out and make a killing but this plotter I know every inch of and have been the only servicer since it was new so I know it's history.
So the question is - I need either 1) someone that is parting out a C7780C (has to be that exact model) with a good ISS or electronics module that wants to sell either item or 2) someone that owns a working C7780C that would work with me to get an ISS with the proper info into it - has to be a C7780C and I would buy a brand new ISS from HP and ship it to them. They remove their right cover, take their ISS out and install the new one and when the prompt comes up they tell it the ISS was replaced so their info is backed up into the new ISS. From that point they could remove the new one and put their old one in, or leave the new one in their machine and close it up. Whichever unit is left out will have the same model info in EEROM and could be shipped to me. I could then install the unit when it arrives, tell the prompt that the electronics module was installed (even though the ISS was installed) and the ISS EEROM info would be loaded to my present electronics module - then I could set my serial and usage from the service menu. I'd be paying shipping to and from and would even be willing to pay a reasonable fee for the time to do the loading.
So if anyone in the US (or Canada if customs won't be a pain in the butt) has a working C7780C 800PS plotter that has either part for sale from one they are tearing apart, or has the skills with the plotter to do what I need then please email me (rhb57 -at- windstream.net) so we can work something out. Alternately if anyone with a working C7780C within a couple hundred miles of me here south of Louisville, KY would allow me to come to their location and do so I can do that as well. None of my customers has a C7780C so I am unable to do it myself otherwise it would be done already. I hate to have to part this machine out, it has very little use and has been very well cared for and would be so usable for our shop.
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