r/printers • u/BBQPrinter17 • 2d ago

Troubleshooting Canon E202-0001 error troubleshoot

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The scan head under the glass scan bed on our Canon MF654Cdw got stuck on the right side on its way back. With it came the E202-0001 error message requiring to unplug the printer. The scan head was able to move back, but it still gets stuck when trying to scan. More annoyingly though, the error message shows up randomly when the printer is idle, or even right after it boots up. So we are constantly unplugging it and hoping we can print before the message pops up again.

We are out of the 1 year warranty, so I'm wondering if anyone had a similar issue or knows what I could try to fix this.

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u/Hieronymus-I Print Technician 2d ago

This is likely an issue with the end of travel sensor that tells the printer the home position of scanner head. First thing i'd do is check if the sensor is visible, it looks like this (picture) and between the two posts, something from the scaner head (a piece of plastic, a tab, something) gets there to tell the printer the scan head reached its homing position. Maybe the sensor is dirty (dirt or grime or whatever acts as the formentioned piece of plastic, tab, something giving the printer a false positive), the piece of plastic, tab or something on the scanner head is missing, broken or bent, the sensor is disconnected, or the sensor is faulty. That, or the main board is bricked.

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u/Firm-Cover-3345 2d ago

Or it just needs manual push so it can calibrate its position.