More on Mustek 8000SP adventures...

Gregory Trubetskoy (grisha@ispol.com)
Sun, 20 Jul 1997 01:54:28 -0400 (EDT)

Finally, past midnight, the Mustek scanner seems to be responding. Now the
problem is that the image quality leaves quite a lot to be desired -
whenever I use color mode, the image looks gray with lines running
perpendicular to the direction of the scan ( horizontal lines, if you will)

To get it to work so far, I did the following:

( I am on Linux 2.0.30 using an ncr 810 card )

Edited the ncr53c8xx.c with the guideline "to fix errors, eliminate the
error checking!" :

1. I was getting "extraneous data discarded" error, so I just commented
out the error checking somewhere near the line 4509. The entire block
beginning "if (cp->xerr_status != XE_OK)". I don't have a clear idea of
what this does, I imagine it's necessary for something...

2. I was getting another error "ncr dead?". For this, I changed line 5323
from "if (np->latetime>10)" to "if(np->latetime>100". Once again I'm not
sure what this did. I was guessing that 10 was in seconds, but it seems
like after the change to 100 it completes scans that take way more than
100 seconds. This 100 sends was picked completely out of the blue, but it
seems to improve things...

Now if only comebody could help me fix this image quality problem...

Any comments would be highly apreciated. If this doesn't work ( SANE, that
is ) I will officially declare Mustek Paragon 800SP ( == 8000SP ) a total
piece of crap that only works on Windows 95 and only with their card.

Thanks in advance for any help,

------------------------------------------------------------
Gregory (Grisha) Trubetskoy
grisha@ispol.com
http://www.ispol.com/home/grisha
------------------------------------------------------------

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