20 Most Recent Canon imageCLASS MF8170C All-In-One Laser Printer Questions & Answers

E197 0000 Printer engine communication error
Erroneous communication between the DC controller PCB and
image processor PCB was detected

- Check the connectors of the DC controller PCB and image processor PCB.
- Replace the DC controller PCB for normal connection.
- Replace the image processor PCB.

Dear Sir,
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The problem is with the fixing film, it has a sensor on one side that is were the film is torn. replace the fixing film.It deffinately solves your problem.

Have a Nice Day!

It is more likely that the settings need to be changed on a print job to job basis in the program you are generating the content from. There are usually defaults set in the software and you need to check these settings every time you print.

Canon web site down load user manual, unless you talking cleaning inside that might require service technician. Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

It is related to a hardware error regarding the carousel not turning correctly, but apparently not much more information is available. I have seen situations with printers where there is a particular lever that engages (partly for safety) when everything is closed, but if it gets stuck or slips out of alignment, it can cause issues like yours. I've managed to fix a few in my day, but I couldn't say there is a defined series of steps to take. More like carefully opening the printer up, observing what parts fold open or move along with the main "door" and making sure everything is moving freely.

In my office this error message E021 came up today,too. So I called customer service to solve this problem.Operator advised me to shut off the power suply with pull out source plug about 5 minutes,after that, put plug in socket again.
If error message E021 still comes up,it needs repair(fix) by cannon support because of breakdown.
gambatte!!(^^)/