Canon scanner imageFORMULA CR190i II User Manual

41
Condition A double feed error often occurs.
Cause and 
RemedyA double feed error may occur when documents with 
different thicknesses are mixed. If you are using the CR-
190i II/CR-190i II UV scanner, you can align the 
documents using the jogger.
If the above-mentioned method is not effective or you are 
using the CR-135i II/CR-135i II UV scanner, adjust the 
Separation Roller gap. (See “Adjusting the Separation 
Roller Gap,” on p. 57.)
Condition MICR characters are not recognized correctly.
Cause...

42
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.
The scanning glass or rollers are dirty.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. 45.
The scan conditions are inappropriate.If the scan...

43
Maintenance
This chapter describes how to clean and maintain the scanner.
To ensure high-quality image scanning, regularly clean your CR-135i II/
CR-190i II as described below.
CAUTION
•Before you clean the scanner, turn OFF the scanner and computer, 
and disconnect the power cord from the power outlet. Otherwise, it 
may cause an electrical shock.
•Never clean the scanner with any kind of organic solvent, such as 
alcohol, benzene, or paint thinner. This may cause a fire and electrical 
shock, or...

44
BPress the Open Button, and push the Back Maintenance 
Cover open to the back.
CWipe the feed path with a firmly wrung cloth, moistened 
slightly with water or mild detergent. Then, wipe off with a 
clean, dry cloth.
DClose the Back Maintenance Cover.
EClose the Front Maintenance Cover in the order shown in the 
diagram below.
Feed Path 

45
Cleaning the Scanning Glass and Rollers
If stripes appear on scanned images or if dirt appears on scanned 
documents, clean the scanning glass and rollers. Clean the scanning 
glass and rollers regularly.
ARemove the Top Cover.
BPull the Open Button, and pull the Front Maintenance Cover 
open to the right and left.
IMPORTANT
If you notice paper dust in the feed path when you open the Maintenance 
Cover, clean it out with a clean dry cloth or cotton swabs.
CPress the Open Button, and push the Back...

46
ESpin the rollers while wiping them clean with a firmly wrung 
cloth dampened with water or a mild detergent.
There are 26 roller positions, as shown in the diagram below.
NOTE
•Use cotton swabs to clean the rollers in locations that are too narrow for 
your fingers.
•Roller in position C is turned by the roller in position A. Turn the roller in 
position A to wipe the rollers.
•Rollers in positions H, J, and L are turned by the roller in position K. 
Turn the roller in position K to wipe the...

47
HClose the Front Maintenance Cover in the order shown in the 
diagram below.
IReplace the Roller Cover.
JCarefully replace the Top Cover.
IMPORTANT
If paper jams and double feeds (two papers being fed at the same time) still 
occur after cleaning the rollers, the rollers may be worn. The rollers need to 
be changed. Some rollers are replaceable. (See “Replacing the Rollers,” on 
p. 54.) If the rollers are not replaceable, contact your local authorized Canon 
dealer or service representative to have...

48
Cleaning the Magnetic Heads
If the magnetic heads are dirty, then MICR characters cannot be 
scanned correctly. Periodically, clean the magnetic heads with a 
commercially available audio head cleaner.
APull the Open Button, and pull the Front Maintenance Cover 
open to the right and left.
IMPORTANT
If you notice paper dust in the feed path when you open the Maintenance 
Cover, clean it out with a clean dry cloth or cotton swabs.
BUse a commercially available audio head cleaner to clean the 
magnetic...

49
Cleaning the Ink Jet Nozzles
Ink that collects around the ink jet nozzles may stain your documents 
or cause the text or bitmap to appear as scratched. Clean the area 
around the ink jet nozzles periodically. Cleaning the ink jet nozzles is 
also efficient action when the printed text or bitmap becomes faint.
ARemove the Top Cover.
BRemove the ink cartridge.For more information, see “Replacing the Ink Cartridge,” on p. 51.
CUse the Built-in Nozzle Cleaning Pad to remove the ink from 
around the ink...

50
Cleaning with the Cleaning Cards 
(United States Only)
If a black stripe appears on the back-side of scanned images or if dirt 
appears on the paper documents upon scanning or for preventative 
measures, we recommend that you clean your Canon CR-Series 
scanner as needed with a cleaning card. Using a cleaning card will 
minimize the frequent cleaning as instructed in this manual.
It is best to perform a cleaning at beginning or end of the day. A cleaning card 
does not clean the ink jet nozzles, so...