Canon M111021 ユーザーズマニュアル

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If there is a problem with the scanned image (the image is not sharp 
or stripes appear), one of the following conditions may be a probable 
cause. Check the following conditions, and take the appropriate 
action.

If the scanning glass or rollers are dirty, the dirt will appear on the 
scanned image.

Clean the scanning glass and rollers. For details, see “Cleaning 

the Scanning Glass and Rollers” on p. 15.

If the scan conditions are inappropriate, the scanned image will not 
be sharp or will appear as dark.

Check the brightness and other scanner settings.

If the scanned image is blurry or the document has not been 
scanned at all, the brightness may be set too high. If the scanned 
image appears dark, the brightness may be set too low.
Also, check the settings on the driver and the software application.

If the document cannot be scanned correctly even if the scan 
conditions are adjusted, the driver or the application may not be 
functioning correctly.

Reinstall the driver or application.

For details on how to install the driver, see “Installing the Software,” 
on p. 19 in Instructions.
For details on how to install the application, see the applications 
instruction manual.

Even if the computer may be recognizing the scanner correctly, and 
the driver and the application is installed correctly, scanning may not 
be performed correctly. If this happens, the interface card is not 
compatible. Use the recommended interface card.

If the above remedies do not rectify the problem, contact your local 
authorized Canon dealer or service representative to have the 
scanner serviced.

Cause and 
Remedy

• The scanner cannot correctly read MICR characters if 

the magnetic heads are dirty. Clean the MICR 
magnetic heads. (See “Cleaning the Magnetic Heads” 
on p. 18.)

• If MICR characters cannot be recognized correctly 

after cleaning the heads, the MICR heads may be 
worn. Contact your local authorized Canon dealer or 
service representative to have the scanner serviced.

• The MICR text is on the back of the document. Load 

the side with the MICR characters face up in the 
document tray.

Other 
Causes

• Some of the MICR characters are scratched or 

missing. Splattered MICR ink or toner may also be the 
problem.

Cause and 
Remedy

Ink is clogged in the ink jet nozzle. Clean the ink jet 
nozzle. Cleaning the ink jet nozzle is recommended 
before using the CR-190i. (See “Cleaning the Ink Jet 
Nozzles” on p. 19.)

Other 
Causes

The ink cartridge may be empty.

Cause and 
Remedy

Ink from the imprinter has been placed on the feed path. 
Clean the ink off the feed path. (See “Cleaning the Ink 
Jet Nozzles” on p. 19 and “Cleaning the Feed Path” on 
p. 13.)