Cross-post from DT:
originalThe Kroy 190 is one of the more unusual boards I picked up from XMIT's ongoing
Keypocalypse. It was originally part of the Kroy 190 Lettering System, an industrial tape label printing system from the late 80's. The system consists of two parts; a keyboard unit and a tape label printer. The keyboard unit is in reality a z80 based microcomputer used to compose, edit and store text for labels. The keyboard unit can be connected to the label printer to print the labels stored in memory. There is a single line character LCD used to compose and edit the text for the labels. The keyboard unit case is made by Kroy and contains four PCB's: keyboard, single board computer, display board and power conditioning.
The keyboard PCB, plate and switches are from NMB/Hi-Tek. It uses yellow linear switches for all keys except the space bar which is a white linear. The yellow switches are very smooth and are comparable to whites. The keycaps are PBT dye-subs, but have a set of pink side/front printed symbols that can be accessed by pressing the "SYMBL SHIFT" key.
The z80 board is a complete microcomputer including cpu, timer/counter, SRAM and EEPROM. It also as a number of 74 series logic chips and a serial transceiver.
Here are a few photos (
more on DT wiki page):
