[GreenKeys] [External] Re: MITE AN/TCG-14A Video

[Duncan Brown]

Here is a diagram of the MITE printing mechanism.

Have fun,

Duncan
K2OEQ

On 08-May-22 10:57, Duncan Brown wrote:
> On the MITE, the hammer is in front.  It pushes the ribbon against the 
> paper and then against the 8-sided type cylinder in the rear. Other 
> than a "type cylinder" instead of a "type box" and no platen, the 
> printing mechanism is very similar to the Teletype Corp. M28.
>
>  It is a very compact machine. When it works, it is great, but when it 
> doesn't, it can be very hard to work on!
>
> Have fun,
>
> Duncan,
> K2OEQ
>
> On 07-May-22 22:54, Jones, Douglas W wrote:
>> From:  Joe Duszyński [joeduszynski1 at gmail.com] -- Saturday, May 7, 
>> 2022 9:06 PM
>>
>>> So I'm curious is it like a Daisy wheel or a DMP or some sort of 
>>> belted letters?
>> The MITE, like the Model 33, has a type cylinder that rotates and 
>> slides in order to pick the letter it prints.  Unlike the 33, the 
>> cylinder in the MITE is on a horizontal axis parallel to the line it 
>> is printing, and if I recall correctly, the hammer hits the paper 
>> from behind instead of typing against a rubber platten the way 
>> classic typewriters do.  The type cylinder has just 8 characters 
>> around it, and it is keyed to the shaft it rides on to select which 
>> letter faces the paper.  So that shaft rotates while the cylinder 
>> slides from side to side to select the letter in a row of 8 (for a 64 
>> character alphabet).  The hammer is narrow and hits the paper from 
>> behind against the ribbon and cylinder to print the desired letter.
>>
>> It's very clever, and like Teletypes, it's mostly mechanical 
>> decoding.  Not at all like a daisy wheel printer or the belted 
>> printers (GE Terminet, for example), technologies that only really 
>> became possible when you could pack a small computer worth of 
>> electronics into the printer.
>>
>>              Doug Jones
>>              jones at cs.uiowa.edu
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