Most and perhaps all 3rd party power supplies for the ADAM computer did not actually power the ADAM printer. Instead after testing what actually occurs is that the DB9 connector on the side of some third party ADAM Printer power supplies is for connecting of the ADAM printer for data communications only, and the printer remains off as long as the power switch on the back of the printer is off. However, as soon as one turns the printer power switch on (located on the back of the actual printer), what actually happens is the printer well not work unless the power cord is also plugged into the electrical outlet. Therefore, the ADAM printer still uses its own internal power supply when connected to a third party ADAM memory console power supply. Therefore, when one wants to use the ADAM printer they have to still turn it on and use the power supply built into the printer. However, the printer does run cooler when connected to a third party ADAM memory console power supply, because the internal printer power supply is only powering the printer and not powering the entire ADAM computer system.
There is a bug or unwanted feature in the SmartWriter program and/or all ADAM Printer firmware (This bug or unwanted feature occurs with all Coleco ADAM printers released). Every time the Coleco ADAM memory console is reset the printer advances the paper feed one space. Therefore, after one does several resets of the memory console the paper needs to be reloaded in the Coleco ADAM printer. I did notice one nice improvement about the ADAM printer when connected to a third party power supply. The DB9 connector on the power supply is wired in such a way that the bug or unwanted feature where the ADAM printer advances one space after each memory console reset no longer occurs anymore. This is a very nice improvement not to have to reload the paper after several memory console resets. I hope this new power supply for the ADAM computer you are developing well also stop the unwanted ADAM printer line space advance issue everytime the memory console is reset.
Edited by HDTV1080P, Thu Aug 2, 2018 8:30 PM.