Interface pinouts for a HP LaserJet IIP LCD Panel

Archiver

I just tore apart a nice old HP Laserjet printer to get at all the
parts inside, and it has a neat little tiny LCD panel that I would
really like to use. But I am not sure what the pinouts are for it. It
is a 16 pin connector, and the first 14 don't match a regular Hitachi
based PCD panel. It has six push button panel switches and 4 LED's
wired to the connector off to one side through a 10 pin connector.
That used up the first 8 pins on the 16 pin connector going to the
LCD PCB. the rest go to the LCD and provide power. Could this be a
simple serial interface for the LCD panel?
Although they could use the other 8 to run the LCD in a bit parallel
mode?
Thanks

Archiver

Two excellent articles about general interfacing of LCDS can be found
at:

http://f5soh.free.fr/ftp/pic16f84/

The file names are:

LCD1.PDF & LCD2.PDF

hth,

leroy

earlwb wrote:
>
> I just tore apart a nice old HP Laserjet printer to get at all the
> parts inside, and it has a neat little tiny LCD panel that I would
> really like to use. But I am not sure what the pinouts are for it. It
> is a 16 pin connector, and the first 14 don't match a regular Hitachi
> based PCD panel. It has six push button panel switches and 4 LED's
> wired to the connector off to one side through a 10 pin connector.
> That used up the first 8 pins on the 16 pin connector going to the
> LCD PCB. the rest go to the LCD and provide power. Could this be a
> simple serial interface for the LCD panel?
> Although they could use the other 8 to run the LCD in a bit parallel
> mode?
> Thanks
>
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