RetroPrinter Support

Tony,

Are you capturing any raw data at all? The best way is to monitor the /tmp directory for raw files whilst printing.

If they are corrupt, then you will not a PDF - but you should see something in there.

You may need to adjust the handshaking, signal_time and bit_depth settings to get it to ...

Hi, I'm trying to get retro-printer working with a ZX81 & Memotech Centronics Interface without any luck so far

Have checked continuity of my ribbon cable and am happy that's ok

As I have no way of knowing for sure that the memotech is working I was wondering if anyone knew if there was any way to ...

Just to log a conclusion to this

it turned out the "standard" TI-99/4a printer cable I had purchased turned out to be anything but standard

I stripped out an IC inside the plug and rewired a couple of cables to the correct locations and now it's working great (in 8 bit mode as well, so compatible ...

The line spacing turned out to be a case of RTFM

To open the opus printer with tokens on I was using open #3;"t" which adds CR/LF (whereas tokens off "b" only sends CR)

By changing to open #3;"t";2 it only sends CR

The sample token emulator document you sent me, based on a tokens off output, is ...

I'm a dipstick!

I hadn't crimped the centronics plug fully home to the cable

It works with/without Tokens ("t" & "b" options) though line spacing is a little different but that is probably CR/LF settings

Will PM you the outputs from the Opus in case they contain any useful information

Many ...

I bit the bullet and cut 26, 25 & 23 which made no difference

Not sure what to do with 21 though as in the list it says it's "READY" then underneath says NC

Have ordered a replacement PIA in case the one in the Opus is faulty

May try a bit of electrical tape on pin 21 and see what happens

I've just tried a straight thru cable I've made to connect retro-printer directly to the Opus Discovery's own printer port and I don't get any output of any sort

I've checked the wiring diagram and it seems to match the QL (SGC Printer port) pin out

However, in my Opus cable all pins are ...

That didn't throw up any new information

The only thing I've realised is that "COPY" is the token for hex FF

You would need to send the raw files for each mode. Who knows what the Epson mode does


The epson mode in the Kempston, when it didn't hang, didn't produce anything in retro-printer

However, trying it again a few times this morning and setting it to epson in the kempston is exactly the same as ...

Di you have the manual for the interface?


This is the manual

https://worldofspectrum.net/pub/sinclair/hardware-info/k/KempstonCentronicsInterfaceE_Manual.pdf

I did try setting it to Epson (rather than text) mode and at first I thought it was working as the speccy didn’t hang, but I didn’t ...