From: jjhudak@gmail.com   
      
   On Saturday, August 5, 2023 at 10:31:14 AM UTC-4, ABLE1 wrote:   
   > On 8/5/2023 9:27 AM, Arie de Muijnck wrote:    
   > > On 2023-08-04 16:27, ABLE1 wrote:    
   > >> Hello,    
   > >>    
   > >> Just curious as to how a Dot Matrix printer moves the ink from    
   > >> a storage tank to the print head.  I am referring to a printer    
   > >> such as a Epson Eco Tank Printer.  It is NOT Gravity!!    
   > >>    
   > >> Is it some sort of pump or some other technology that moves the    
   > >> ink to the print head??    
   > >>    
   > >> Trying to search online only gives me how to clean print heads    
   > >> and tubing but no mention of how the ink is forced to the heads.    
   > >>    
   > >> Thanks for any small hints.    
   > >>    
   > >> Les    
   > >>    
   > >    
   > > Air pressure. After the droplets are ejected (by thermal or piezo    
   > > action), less volume is present in the printer head causing a low    
   > > pressure. The capillary action in the print nozzle prevents ink from    
   > > flowing back. The pressure in the tank is higher, hence new ink will    
   > > flow from tank to head.    
   > >    
   > > Arie    
   > >   
   > Hi Arie,    
   >    
   > Thanks, now that does make better sense. Somehow I had a blockage    
   > in my printer 'Black' ink. I somehow cleaned or cleared the obstruction    
   > yesterday. Now, the printer is back in operation after running about    
   > 20 pages with a very large BLACK line thru the Epson that didn't start    
   > printing anything until the last page.    
   >    
   > After all the time spent on working on this problem I am now a more    
   > better educated technician than before!! :-)    
   >    
   > Later,    
   >    
   > Les   
      
   In my experience with perhaps 4-5 inkjet printers (hp, epson) with printing   
   issues,  I find the print head is usually clogged. I've read online about many   
   ways to unclog the print head.  Nowhere have I seen a chemical, made by the   
   ink mfg, that one could    
   put in place of the ink cartridge to clean/dissolve the clog.    Seems   
   ridiculous to me.  Repeated cleaning cycles with 'fresh' ink cartridges seems   
   to waste a lot of ink and is not all that effective.  If anyone knows of a   
   cleaning solution that works,    
   I'd like to hear about it.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)