Hello there! Sorry about that, looks like it was indeed scrubbed.
I've instead uploaded them to here: https://drive.google.com/drive/folders/1-n2ABYtWhAGOW18siwKGjOc81Op7IUIA?usp=sharing ------------------ How do you capture a USB session? Thanks, -[K] IMSOASIAN On 10/21/21, Ralph Little <[email protected]> wrote: > Hi, > > On 2021-10-17 7:25 p.m., LUH LAH wrote: >> Hello there! >> >> I recently acquired a Canon 4200F scanner and realized after extensive >> research that the USB chip couldn't be found. So, I opened up and >> de-soldered the mainboard RF shield/Heat Sink to find a bunch of >> chips. >> >> I've attached said images to this message. >> >> My question is, what chip is exactly for the USB port? >> >> Thank you very much! >> >> -[K] IMSOASIAN >> > The scanner is not currently supported by SANE. > We do have a prior report from someone documented here: > http://www.sane-project.org/unsupported/canon-4200f.html > > However, I'm not aware of any active work on this machine. > > The chip marked L6219DS appears to be a PWM motor controller: > https://www.allegromicro.com/-/media/files/datasheets/l6219ds-datasheet.ashx > > The chip marked WM8196SCDS appears to be an ADC for the imager: > https://pdf1.alldatasheet.com/3efc5524-e7be-47c7-99d3-9d2c2ebaba01 > > There is a DRAM memory package: > https://www.esmt.com.tw/upload/pdf/ESMT/datasheets/M12L16161A(2R).pdf > > The other chip is probably a microcontroller of some sort, which may > have an integrated USB port. > > Unless you can identify the microcontroller, then analysis of captured > USB sessions using the Windows driver is what you have left. > --------------- > > I didn't get the images that you say that you have attached. They may > have been scrubbed in the submission process. > Perhaps you could reply to the list and myself with the attachment again? > > Cheers, > Ralph >
