Canon imageRUNNER ADVANCE C2000 Series Technical Workbook page 51

11) While lifting up the sensor lever [9], pull out the cassette 1 pickup unit.
12) Remove the E-ring [10], and remove the gear holder assembly [11].
13) From the gear holder assembly, remove the output gear [12], the idler gear [13], and the torsion spring
[14], and install them to the new type gear holder.
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