Canon 800 - Manual (Page 45)

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The screen stays
dark after I switch
the scanner on.
The screen bright-
ness is uneven or
the screen is too
dark.
The image is out
of focus.
The image is
skewed.
Nothing happens
when I press the
Start key.
Border removal
and automatic
skew correction
do not work cor-
rectly.
• Check that the lamp unit is properly fitted into the
main unit.
• Check whether the lamp has burned out. When
the lamp is burned out, “LP” appears on the
Error/User Mode display. If the lamp has burned
out, fit a new lamp.
• Check that the lens is clean.
• Check that the lens is fitted correctly.
• Check that the lamp and the lamp unit are prop-
erly fitted.
• Use the image adjustment control dial in FOCUS
mode to adjust the focus.
• Check that the carrier is installed correctly. Refer
to the instructions supplied with the carrier for
details.
• Check that the lens and the lamp are both clean.
• Use the image adjustment control dial in ROTATE
mode to straighten the image.
• Check that the carrier is installed correctly. Refer
to the instructions supplied with the carrier for
details.
• If the Start key is lit red, the scanner is still warm-
ing up. Wait until the Start key turns green before
pressing it.
• If an error code is shown on the display, see “User
Call Errors” or “Service Call Errors”.
• In Scanner mode, the application software setting is
not “Semi Auto”. Check the application software
setting.
• If the image projected on the screen is similar to
the images shown on the next page, the Border
Removal function (P.27) and Automatic Skew
Correction function (P.30) will not work correctly.
Adjust the image shown on the screen.
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Problem Solution Reference Page
Maintenance and Troubleshooting
Troubleshooting
If the scanner is not operating normally or not giving satisfactory results, refer to this table to
identify the cause and find the solution.