[sane-devel] Canon XK90 2400dpi scanning possibility

[Ralph Little]

Hi,

On 2021-12-07 4:07 a.m., WATANABE Kazuhiro wrote:
> Hi, Thanks for your reply.
>
> On Tue, 07 Dec 2021 00:53:10 +0900,
> Ralph Little wrote:
>> Hi,
>>
>> On 2021-12-06 1:43 a.m., WATANABE Kazuhiro wrote:
>>> Can I scan XK90 with sane-pixma at 2400dpi?
>>>
>> It appears that some machines have a sub-image format at higher resolutions.
>> You could try this:
>>
>> Change line 1150 of pixma_mp150.x to:
>>
>>    if (s->cfg->pid == MP600_PID || s->cfg->pid == MP600R_PID ||
>> s->cfg->pid == XK90_PID)
>>
>> ...and add this around line 1190:
>>
>>                    || s->cfg->pid == XK90_PID
>>
>>
>> And let me know if this fixes the issue.
>>
>> Cheers,
>> Ralph
> I've updated pixma_mp150.c with your advice and scanning at 2400dpi
> seems good.  Great!  The new scan images at 1200/2400dpi are here:
>
>   https://drive.google.com/drive/folders/1Bt86fFiz-ekJaNoUglkxTsGniGQH3KeD
>
>   scangear_{1200,2400}.png	Scan with ScanGear on Windows
> 				(All enhancements turns off)
>   scanimage_{1200,2400}.png	Scan with scanimage
>
> I hope the same approach can apply for recent Canon inkjet MFPs such
> as the TS series...
>

I have checked in the changed and is now in SANE backend master.
It will not be in a regular release until 1.0.34, probably in about 5 
months time, but it will be already in our SANE git PPA: 
https://launchpad.net/~sane-project/+archive/ubuntu/sane-git

Thanks very much for your efforts in getting this machine to be fully 
supported.

Cheers,
Ralph