I have been getting 2, 156, xx errors on Windows 10 for a few weeks now. I replaced my previously faithful old LIDE 210 with a new LIDE 220 but continued to get the same problem. The scanner makes noises and starts to scan but then freezes, sometimes a few pages in, sometimes on the first page.
Since I could find no evidence of a crash in Windows logs, I figured that it was a pure hardware problem, perhaps with the USB power to the scanner. The scanner stops moving and Windows suddenly doesn't know the scanner is there: just like someone pulled out the plug.
So, I wondered how the scanner would behave when my laptop was not plugged in to the mains and was running on battery power. Would the reduced power make the freeze happen sooner? To my surprise, no!, running on battery I can scan as many pages as I want without any problem. Plug the computer in again and the scanner freezes on the next page.
Next I tried scanning with the computer plugged in but after changing my Windows power plan to "Power saver". Again, no freezing. After changing back to my usual power plan, the scanner freezes.
Unplugging the laptop seems to have worked through through turning on some of the power-saving features.
I have tried to identify which of the power-saving features makes the difference. But trying each feature individually doesn't seem to do the job; it needs a combination.
I have now set up a new power plan which makes the laptop use the same power-saving features that are engaged when I unplug my laptop (with the exception of basics such as changing screen brightness, sleep times, etc.) even when it is plugged in. I have written a handy little .cmd file that toggles between the two power plans, can be accessed with one tap on my start screen, and reminds me to change back to my usual power plan once I have finished scanning.
I've been scanning for the past two days without any trouble.
In short, what do suggest you try?
1. If you are using a laptop, temporarily switch to the "Power saver" power plan.
2. If you are using a desktop, you may need to create a new power plan and (perhaps) use "Change settings that are currently unavailable" to access the power-saving options. (I haven't tested this scenario.)
I just wish I had figured this out before buying a new scanner. (If Canon would like to reward me for doing their work for them, I am going to need an imageFORMULA DR-C225W soon.)
