XPost: sci.electronics.design, alt.home.repair   
   From: jl@glen--canyon.com   
      
   On Thu, 30 Jan 2025 15:09:22 -0800, Jeff Liebermann    
   wrote:   
      
   >On Wed, 29 Jan 2025 23:41:08 -0500, micky    
   >wrote:   
   >   
   >>In sci.electronics.repair, on Wed, 29 Jan 2025 10:38:40 -0800, Bob F   
   >> wrote:   
   >>>Is there a tiny hole in the case above that switch for usimg as paper   
   >>>clip to reset the device?   
   >>   
   >>No, nothing like that. Like most VCRs, DVD players, DVDRs, amplifiers,   
   >>One big piece of sheet metal covering the top with no holes, no writing.   
   >>I wonder how it decides when to break?   
   >   
   >Several ways to determine when to self-destruct:   
   >   
   >1.  Warranty timer.  The timer records how many elapsed days between   
   >when power was first applied and the current date.  When the timer   
   >shows 110% of the warranty period, it declares a fault or failure. The   
   >extra 10% is to deal with errors in the timer.   
   >   
   >2.  Predicted use.  The "chip" in many inkjet printer cartridges is a   
   >good example.  The manufacturer decrees that the inkjet cartridge   
   >should last 1,000 pages.  When the chip counts 1,001 printed pages, it   
   >ceases printing and produces a difficult to decode error message. It's   
   >much the same with laser toner carts and drums.  With older iPhone   
   >batteries, the clock was slowed down to simulate the effects of an   
   >aging battery.   
      
   Don't buy HP printers. They are in the theft business.   
      
   Brother is a much better deal, both laser and inkjet.   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)