Hello can somebody help me about the problem of my machine canon ir 3180 CI when i make a multiple copy theres an error code appear E000070-001 please help me guys

E070 ITB HP detection error

0001 HP of the ITB fails to be detected even
after the specific period of time.
Abnormality of the HP sensor,
Deviation of the belt from its position to
either edge, or soiling of the seal
Clean the HP detection seal, Clean/Replace the HP
sensor
0002 The next HP fails to be detected within
the specific period of time after the HP
of the ITB is detected.
Clean the ITB back side and the drive roller
0003 The next HP is detected earlier than the
specific period of time after the HP of
the ITB is detected.
The ITB is torn due to scratches, and the
sensor detects the tear as a HP by
mistake
Clean the HP detection seal, Clean/Replace the HP
sensor

Help me : hp itb sensor location & color digram or vidoe or service munal pdf file mail my [email protected]