Micro Innovations never released a power supply for the ADAM computer as far as I am aware. Many companies did not want to touch this issue. However, with 1MB and 2MB memory expanders hooked up to the ADAM along with other devices, the ADAM printer power supply could not output enough power. Some mail order companies in extremely small QTY’s developed external third party power supplies for the ADAM computer. They used an old ADAM power cord and converted a factory new 230WATT power supply so that it worked with the ADAM computer. This 230watt power supply was more than enough power to power anything hooked up to the ADAM including 2MB memory expanders and anything else located in the 3 internal slots. Also the 230watt PC power supply had a on off button with a internal fan. In addition, this external new 230watt power supply would power the Coleco ADAM printer when the printer was connected to the DB9 jack on the side of the power supply. One could leave the ADAM printer connected and hit the on/off switch on the printer when they wanted to turn on and off the printer. Since an external power supply was powering both the ADAM computer and the Coleco printer, the printer lasted longer since there was less heat occurring.
The 1983 Coleco ADAM printer is still working after 35 years. I just powered it on and the 35 year old ribbon and Daisy Wheel are still offering a letter quality print. I cannot say that is true for the many other printer technologies on the market after 35 years. However, 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 do have one correction to make to my prior post. 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.
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.
Edited by HDTV1080P, Thu Aug 2, 2018 8:06 PM.