> >I power up the scanner, wait 1-2 minutes, then boot up. The
> scanner is not
> >recognized at the scsi scan on initial boot. Some time into the
> boot process
> >the carriage will move about two inches, and then I can go into device
> manager,
> >refresh and there it is. It will be found upon any reboots.
> Device manager
> >reports that it is working properly. On to the test in control
> panel under HP
> >Scanjet, after about 30-45 seconds it reports "communication
> problem, check
> >cables, termination and rerun test" The Desk scan program
> proceeds to hang
> >some of the time. Other times it will close, followed by a
> message "An error
> >occurred while Windows was working in the control panel file
> >C:\Windows\system\HPSCNMGR.dll" <some material trimmed>
Bill said:
I have an HP 4C controlled by a 2940UW and the scanner is detected as an
> HP C2520A at boot by the SCSI BIOS.
Same here.
> Maybe your external cable is not passing termpower through to the
> terminator.
> Is the green diagnostic LED (TRM) lit on your Granite terminator?
Yes
> Does the scanner provide termpower? (Green LED lit when computer is off.)
> (Also check the other LEDs: REQ, ACK, and SEL. Check page 9 of the Granite
> pamphlet for explanations.) Are you sure that the scanner's built in
> termination is disabled?
Yes.
> I gather you are not using a Granite Digital external
> cable.
No I got the cable from HP, $75, why I would like to make it work. and this
was before I saw your first post with your set up with the Apple cable etc.
> I would turn off Ultra speed in the SCSI Select utility and see if that
> helps. (Your present settings make sense...but try 20 MB/sec for your
> hard drive. Also don't have your controller searching for the other 12
> SCSI IDs at boot.)
I didn't see where or how to disable searching for the non-existant devices.
Where is this done?
> Can you lower the speed (in SCSI Select) for the scanner down to 5 MB/sec?
Yes and done.
> I can do this in my SCSI Select...BIOS Ver 1.34.3.)
Same version here.
> The following may help me get a better idea of your setup. Right now I'm
> a bit confused.
From the narrow connector on the card, ribbon to zip drive to a ribbon to
mini50 adapter in an open space on the case. As i said, this worked for a
now dead ext. jaz drive, which is removed and replaced by the scanjet
> The HP 4C scanner has both 25 pin and 50 pin Centronics sockets. Does your
> Granite active terminator plug into the 25 pin socket of the scanner? (I
> wasn't aware that Granite made a 25 pin active terminator.) I ask this
> because you said your external cable has 50 pins at both ends...
> and one of the two sockets on our scanners is a 25 pin.
No the terminator is a SCSI VUE Hot Swap Term Cent50, male to female P/N
70-5509. Since I had already purchased the 50mini HP cable, This is what
Granite recommended to me.
> I assume you have your hard drive connected to the 68 pin connector of the
> 2940UW by an 18" cable, then your narrow ribbon cable is 24" (or even 36"
> long), then your external cable is 18", 36", or 72" long. That all adds up
> to from 6 feet all the way to 10.5 feet. This is way over length for Ultra
SCSI cabling.
Total length of ribbon and external cable is no more than 7feet. Does that
matter if ultra wide is disabled in bios?
> Does your hard drive work okay right now? Have you benchmarked it to see
if it is
> running well...without time outs and retries?
As far as I am aware of, however I would love to know what you would
recommend to bench mark the drive with, and what kind or readings I should
expect. In fact I believe there may be another topic involved with this for
another time.
> Have you downloaded the latest scanner drivers from Hewlett-Packard?
> HP Deskscan 2.7 is much better than what came with my HP 4C.
> http://www.hp.com/cposupport/swindexes/sj4cpc_swen.html
These are for NT. I'm running 95SR2.1, will they work with 95?
Thanks for your help as always,
Brad
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