The Sinclair QL Forum

I noticed the network connection sometimes 'hangs' when doing a file transfer. I'm not sure whether this is a problem in the Q68 or QPC2 (I might have seen it earlier when experimenting with IPnet but I'm not sure). The machine appears to freeze totally but eventually after a minute or so the netwo...

For most of the year I have been working on an Ethernet driver for the Q68. Its not finished, but I thought that I would release one of the development versions for people to try, and to get some user feedback on any problems seen. I have tried to make the driver as compatible as I can with the IP d...

There's a chance that the Seikosha SP-1000 was also re-badged by other printer manufactures, Like Star, or Oki, or Citizen. That might increase the chances of picking one up from the likes of Ebay.

If the printhead has been disassembled, then you are probably in big trouble. It's libel to be very difficult to get all the needles back into the right holes. When the printhead was made, it's likely that the needles were much longer, making assembly easier. Then the needles were cut off to length ...

Especially as two of them are free anyway.

When you say that the printhead is only partly working. I am going to assume that you mean that some of the needles are not firing, due to them being gummed up. Try immersing just the end of the the printhead in isopropanol alcohol (not the whole printhead) and let it soak. If you can get at the end...

If the tape head was misaligned, I would expect that the drive would work with cartridges that it formats. But the cartridge would not be interchangeable with another drive unit. Another possible problem, is that the tape head has become magnetized. I don't know if the Microdrives can suffer from th...

Are you loading any SuperBASIC extensions, or other machine code stuff. That's the kind problems you can get if the maths stack gets messed up. What you can get, is like a time bomb. If the maths stack gets messed up, every thing seems OK for a while, then BANG, things fall over nowhere near the act...

Here is updated MDI driver. I have done a quick test on the CONVERT2_MDI command. But it seems to work OK in Qemulator with JS and Minerva 1.98 ROMs. It looks like I also did a fix for a block checksum problem in the FORMAT routine some time ago, But I don't remember doing it :) If I use the ROM ver...

Just checked my QDOS Companion too. My notes for IO_OPEN (Page 39) are as follows: D2 may not be preserved on exit. See QL World, December 1986 Page 43. A1 is not preserved unless a TRAP #4 was done first!!! It seems I had problems too, some time back. Cheers, Norm. There is a Trap#4, just before t...