Canon LASER SHOT LBP-1210 User Manual page 132

Do not expose the cartridge to light for more than 5 minutes. If necessary,
put the cartridge in its original protective bag or wrap it with a thick cloth
to prevent exposure to light.
CAUTION:
The face-up delivery area (shaded part) becomes hot when the printer is
in use. Be careful not to touch this area, because personal injury might
result.
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Chapter 4 Troubleshooting