plustek@linuxhacker.org

Gerhard Jaeger wrote:

>Hi Scott,
>
>On Dienstag, 25. März 2003 13:02, Scott Burns wrote:
>  
>
>>Hi,
>>    I bought this scanner a while back thinking that Compaq would be
>>sure to have a driver.  Silly me, I should have checked...
>>
>>    The scanner uses the 9832 chip with a Mitsumi SP35SP-7T motor,
>>similar I beleive to the stepper motor in the UMAX 2200.
>>    
>>
>
>is the UMAX 2200 also a LM983x based device?
>

No idea.  All I know is it uses a L35SP-7T stepper motor ( typo above ).

>
>  
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>>    I've added enough defs to plustek-devs.c to get it recognized and to
>>have simple controls but the motor is giving me problems.  I have no
>>problem scanning or moving the sensor forwards, but it only goes
>>backwards when it wants to.  There seems to be no rhyme or reason, it
>>just (usually) sits there and buzzes.  I ran up Windows and it still
>>works fine under 98, so I don't think I've damaged the motor.
>>
>>    plustek-devs.c says, close to the end, to up the MCLK variable in
>>this case.  I've run it at just about every variable between 1 and 24,
>>and no other MCLK goes that high.  Is there anything else that springs
>>to mind that I can try?
>>
>>    
>>
>
>What version of the backends are you trying?
>The fast moves of the motor are also influenced by the setting of
>dMaxMoveSpeed defined in the HWDefs structure, so I suggest at least
>use the settings of the UMAX3400 for your experiments - BUT use
>the current sources for this (SANE-1.0.11)...
>  
>
I've been using 1.0.11 with the 0.45-5 plustek stuff.

After lots of fiddling about I got everything working with the lamp and 
the motor only to have all black scans.  Then on a whim I tried setting 
it up as a UMAX 5400 and it almost worked out of the box.  I put it back 
to the UMAX3400 and it works perfectly.

Rather annoyed with myself for not finding the UMAX stuff earlier, but 
then, if it wasn't for them using the same stepper I'd still be working 
on it...



>Cheers
>  Gerhard
>
>BTW: What are the vendor and product IDs?
>
>  
>

Vendor: 0x049f
Product: 0x001a

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