Canon imageRUNNER ADVANCE C5000 Series Technical Workbook page 27

Service work
When the symptom occurs, do not open the small door for replacing a toner bottle from User Mode
(prohibited matter). When the small door automatically opens, the drive motor tries to rotate, and then an
extra load is applied to the hopper, which may lead to E025-0x10 Error. Replace the wrong toner bottle by
following the steps below.
1) Open the controller box on the back of the machine (open the Fax unit when the Fax unit is installed),
remove the 1 screw [1], and then detach the toner container removing tool [2].
2) Disconnect the 1 connector [1], remove the 3 screws [2], and then remove the toner container drive motor
[3].
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