I took out a memory card reader from a printer and would like to know if I can use it as an SD reader/writer with arduino. I'm not sure I can, but who knows, maybe one of you made something like that before
Here are the pics :
I thought an SDcard shield is just an SD socket wired to the SPI pins... The printer PCB will have its own firmware burnt in, with source code and compiler setup I don't think there's anything you can do with it but plug it into the right printer.
"I thought an SDcard shield is just an SD socket wired to the SPI pins"
A good shield will have a level translator to condition the Arduino output signals to 3.3V levels, and also source 3.3V VCC to the card.
Cheap ones will be just a breakout board.
And there are some in the middle that are more than a breakout board but not fully buffered.
I just noticed the chip (or its readable on this bigger screen):
Try a search on Genesys GL819, maybe you can work from there to figure out where the USB connections are on this item.
Well, I did find the datasheet for it, but it's of no use as I can't figure a way to understand it very well
Also, I found someone on instructables that got the PS3 card reader (GL819 based!) and plug-it on a computer with an USB cable. His ribbon pin connector is not the same as mine, but I e-mailed him. Maybe he can help me.
OK, it appears the board itself is a canon logic board called (like all canon boards it semms) "logic board ass'y".
Every logic board in canon printers have a number, mine is QM3-5656. I found some shops on the net that sell this particular board, and some PDF regarding printer repairing (like : change the QM3-XXXX if this or that problem occurs) but nothing related to the electronic wirings of this board ;(