[comp.sys.mac.hardware] Printer port woes...

b2676870@soph.cs.ubc.ca (George Chow) (06/14/91)

I've cross-posted this to the two groups since I wasn't sure which group 
would be more appropriate (or more knowledgeable ;). 

Hardware: Mac SE, 4Mb; HP-48sx, ROM rev D.
Software: MacKermit 0.98(63); System 6.0.7 and 7.0

The problem is with the printer port. (The modem port is fine.) I want to 
get an idea whether this may be a hardware problem. 

The problem happens when I put my HP-48sx into server mode and attempt an 
operation like a remote-dir or a get. I get a "Bad input clear - 28" 
dialogue box after every packet. After I acknowledge the dialogue, the 
transfer continues. However, if I put MacKermit into server mode and do a 
SEND (or a KGET) from my 48sx, everything's okay.

Downloading from my UNIX account via the modem with MacKermit gives me 
the same problem. However, Zterm (with Zmodem or Ymodem) downloads from 
BBS works fine.

I've tried booting with all inits off and I've blasted my PRAM at least 
twice to no avail. I've also tried the spconfig_reset program (from 
matthew kaufman, <matthew@ucscb.ucsc.edu>, to the best of knowledge) to reset 
the config byte. All to no avail.

Another thing is that I've used my printer port with MacKermit before. Not 
with my HP (since I just got my Mac cable recently) but definitely with the 
modem. Does anyone have any idea what is going on here? Or at the very 
least, what does the "Bad input clear - 28" mean? The doc's I got with 
MacKermit doesn't go into any error messages.

I know that there are differences between the printer and the modem port but
this can't be one of them...)

I'd prefer replies by e-mail as that would be easier to follow. I'll summarized 
if I manage to get enough of a story together.

George Chow