CST Q-PI Printer Module

The CST Q-PI interface was a parallel printer interface card which plugged into the QL's main expansion interface. As it was a dead-end device (no through port), it could only be used with interfaces such as memory cards which had a through port.

Released in December 1984 at a price of £86.25 (£50 plus VAT), the Q-PI Interface performed well enough in its day as a parallel printer connection system, though these were quickly superceded by serial-parallel converter devices by other companies, as it was impossible to use a disk interface with the Q-Π due to the lack of through port.

Oddly, the parallel port uses an IDC-34 way connector, rather than a standard 25 pin DB connector. We have not come across the correct lead to use this interface. The cable was an additional £11.50 on top of the price of the interface!

No manual - simply use OPEN #3,par: PRINT #3, 'Hello World': CLOSE #3

It also adds the command DUMP_SCR to send a screen dump to a printer (presumably EPSON compatible).

CST Q-Pi Printer Interface Title: CST Q-PI Printer Module
Interface Type: Centronics Printer Interface
Connection: Sinclair QL Expansion Port
Through-Connector: NO
Manufacturer: CST
Year First Sold: 1984
Original Price: £86.25
Reviews: QL User (December 1984/January 1985)
Download Manual: Unknown

  • qlwiki/cst_qpi_printer_module.txt
  • Last modified: 2017/09/04 09:52
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