[GreenKeys] TTY Ribbons

[Bruce Gentry]

Bruce Gentry wrote:
> DR HOUSE wrote:
>> The purple ink is very strong stuff and extremely hard to get off of  
>> hands and clothing.
>> However when used with a re-inker the purple will slowly turn black 
>> as  the only ink
>> available in bottles is in black.
>>
>> Don
>> On 9 Aug 2011, at 7:41 AM, Steve Garrison wrote:
>>
>> The desription says "Purple POS Printer Ribbon".  Do they really use  
>> purple ink?
>>
>> Steve G./N4SEG
>>
>>
>>  
>>   
> This ribbon may be for use in a typewriter or teleprinter to make a 
> paper master for an offset duplicator. Does anyone remember the 
> Addressograph-Multigraph office offset machines? They were small 
> offset printing presses intended for single color small production 
> printing in schools, hotels, stores,  and factories. The image on the 
> master was greasy so it would attract the ink. One type of master 
> looked like a carbon paper form, the top sheet was torn off once the 
> text was complete, to expose the image underneath. The image was 
> somewhat greasy, and it really stained skin and clothing.  By 1980, 
> the vast majority of these machines were gone from everywhere except 
> print shops and serious hobby printers, replaced by photo copiers and 
> laser printers.
>
> Bruce Gentry     KA2IVY
>