1mb x 1 memory chips for printers

From: Mike Ford <mikeford_at_socal.rr.com>
Date: Thu May 3 11:24:02 2001

>Does it happen to say what printers the boards are used in? I have a Pacific
>Data Products board from a Laserjet III that has 2 mb worth (16 chips)
>soldered on and two banks of 8 blank sockets to add another 2mb. The chips
>are marked HY51C4256S-C and are 20 pin DIP chips/sockets.

Only a handfull of them are in just static bags, and even those clearly
have the models identified so far. Most of them are in the new retail
package with a little booklet etc.

That memory looks like 4 bit x 256k, which seems also common. When I found
a board for my NEC Silentwriter 2 model 90, I started bidding in ernest,
and stopped reading the other boxes. I really have no interest in the rest
except to sell them, anybody wants a "ready to be filled expansion card" $5
and shipping, 3/$10, 10/$22, etc.
Received on Thu May 03 2001 - 11:24:02 BST