[sane-devel] Problems in 1.0.18, sane_fujitsu, USB fi5120C.

[Lonny Granstrom]

Allen,

m. allan noah wrote:
> On Thu, 14 Dec 2006, Lonny Granstrom wrote:
> 
>>>> 2. Help messages for -x, -y, --pagewidth, & --pageheight do NOT 
>>>> provide proper
>>>>  information, descriptions are all the same.
>>>
>>> what messages do they provide? my copy says:
>>>
>>>     -x 0..224.846mm (in steps of 0.0211639) [215.872]
>>>         Width of scan-area.
>>>     -y 0..863.489mm (in steps of 0.0211639) [279.364]
>>>         Height of scan-area.
>>>     --pagewidth 0..224.846mm (in steps of 0.0211639) [215.872]
>>>         Must be set properly to align scanning window
>>>     --pageheight 0..863.489mm (in steps of 0.0211639) [279.364]
>>>         Must be set properly to eject pages
>>>
>>
>> Help messaages match - but references to ADF use dropped.
> 
> what does this mean, 'references dropped'? are you saying that these 
> messages are ok afterall, or do you want the word 'ADF' in the last two?

My understanding was FLATBED used -l,-t,-x,-y & ADF used --pagewidth, --pageheight.
Since you have "unlocked" scan-area/paper-size in .18 not sure where FLATBED or ADF
references should be included now.

> 
>>>>  (e.g., for ADF, both -l and -x MUST be used to properly mimic the 
>>>> missing
>>>>         --pagewidth argument)
>>>
>>> -l and -x are not the same as --pagewidth. the last tells the scanner 
>>> the size of the paper so it can decide where the left margin on the 
>>> adf is located. the other two set the location of the area that will 
>>> be scanned. note that the pagewidth must be larger than the location 
>>> you are trying to scan, or you will likely get an error.
>>
>> So this means what?
>> The .17 command:
>> "scanadf -d <device> --pagewidth 100.0 --pageheight 60.0"
>> that produced correct results, a scanned image from the ADF 100mm x 60mm
>> automatically centered [matching adjustable paper guide movements], now
>> should be the .18 command:
>> "scanadf -d <device> -l 62.4 -x 100.0 -y 60.0"
>> to produce the same results?
> 
> try:
> 
> scanadf --pagewidth 100.0 --pageheight 60.0 -x 100.0 -y 60.0
>

The command worked.
This behavior is confusing:
  1. Cannot use defaults for the other arguments when using
     --pagewidth [Invalid Argument], but with -x it is recognized?
  2. Using -y without --pageheight does "lock" both in fi5120C ADF.
  3. Using -x & --pagewidth in combination versus -l & -x?
Will dutifully pass all 4 arguments in .18.
 
> i guess that the 1.0.17 code must have locked the scan area to the size 
> of the paper. i am not going to do that anymore, however, because some 
> scanners (including yours) have overscan capability, where the scan area 
> is a few mm larger than the paper on all sides. when combined with a 
> black background, this makes deskew easier.
> 
>> RELATED: if I change the values to be EXACT: -? 60.0 => -? 59.9998 
>> still get;
>> "scanimage:/scanadf: rounded value of br-? from 59.9998 to 59.9998"
> 
> not sure about that. perhaps i am returning the wrong thing when the 
> option gets set, i will look...
> 
> allan
> 

-- 
Regards,
Lonny L. Granstrom
Binson's Home Health Care Centers
t:586-755-2300  f:586-755-2322
MIS Department (ext: 3372)
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