Canon EOS DIGITAL REBEL XTI Service Manual page 94

２） Mirror Cleaning
Make sure that the adhesiveness of the main mirror and the sub-mirror has not
decreased, and then blow off the dust with a blower. Clean up dust that was not blown off
with lens tissue soaked with a small amount of Ethanol. (If too much Ethanol is applied, the
adhesiveness of the main mirror becomes weak.)
Fig. 008
３） Cleaning inside the Eyepiece Cover
⑴Cleaning before attaching Eyepiece Cover Unit
Blow off the dust with a blower, being careful not to touch the part circled in red.
Clean up any dust that remains with a lens tissue soaked with Ethanol.
Fig. 010
⑵Cleaning the Eyecup part
If the Eyecup part gets dirty with sand dust, blow off as much of it as possible with a
blower. When cleaning off any remaining dust with lens tissue soaked with Ethanol, be
sure to remove it from where it is without moving the tissue from side to side. Moving
the tissue from side to side more than necessary may cause scratches on the surface.
Fig. 012
Fig. 009
Fig. 011
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Repair Information