Canon imageRUNNER ADVANCE C5000 Series Technical Workbook page 40

Hopper Tray (Bk)" or "c) Removing the Hopper Unit (Y)/ (M)/ (C)" when removing the hopper unit.
Refer to the photo below for the location of the release holder shift cam HP sensor. Photo [A] shows the
release holder shift cam HP sensor (color) which is attached to support plates of each color. [B] shows the
release holder shift cam HP sensor (Bk).
a-5) When the toner bottles have failed to be detached, remove the hopper unit to check that the parallel pin
is securely fitted, or that one-way gear is not broken. The procedures differ depending on the color where
the symptom occurs. For Bk, refer to "b) Removing the Hopper Unit (Bk)." For color, refer to "c) Removing
the Hopper Unit (Y)/ (M)/ (C)."
b) Removing the Hopper Unit (Bk)
b-1) Open the front cover. Remove the toner container (Bk) and the ITB unit.
b-2) Open the process unit inner cover and remove the process unit (C).
[Caution]
- After removing the process unit, do not expose the photosensitive drum to direct light. To block the light,
either cover the photosensitive drum protection sheet or wrap it with paper (5 sheets or more).
- Do not place the process unit or the photosensitive drum in any place where they will be subject to direct
sunlight such as near the window etc.
- Do not store them in any place where they will be subject to high or low temperatures and high or low
humidity, or the location where the temperature and the humid will change rapidly.
- Do not store them in the dusty place or the location which is pervaded with ammonia gas or organic solvent
gas.
b-3) Remove the developing assembly (Bk), primary charging assembly, pre-primary transfer charging
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