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96
Unique Furniture
Bob is designed to maneuver around furniture of most shapes and sizes, but certain
configurations may confuse him temporarily. Bob may sometimes find it difficult to
clean under chairs with narrow legs, or furniture that is too low for his bumper sensors
to detect. Specialty furniture, such as desk chairs with wheels or stools with circular
bases, may also confuse him for a moment — but don’t worry, Bob usually finds his
way around with time.
Edge Sensors
Bob uses infrared light to detect edges and stairs; because dark-colored carpet ab-
sorbs most light, it may seem like an edge to Bob’s sensors. If Bob indicates Trouble
Nr. 4 his screen, it means that there is something funny going on with his edge sen-
sors, and you may need to temporarily deactivate them. To do so, simply hold down
the UV button on Bob’s cover until the 5 bars on top of the screen flash 7 times and
remain lit on his screen (refer to page 69). Just remember that while Bob’s sensors are
deactivated, he will not be able to detect edges or stairs!
Main Brush
Bob’s main brush, which is designed to reach deep into carpet, may also have trouble
turning on rugs with long fibers or fringes. You may tuck fringes underneath rugs or
remove Bob’s main brush and see how he performs without it.
Bob’s Challenges
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