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 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. 48.)
 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.
Condition The imprinter is not printing correctly (missing 
imprint dots).
Cause and 
RemedyInk is clogged in the ink jet nozzle. Clean the ink jet 
nozzle. Cleaning the ink jet nozzle is recommended 
before using the CR-135i II/CR-190i II. (See “Cleaning the 
Ink Jet Nozzles,” on p. 49.)
Other 
CausesThe ink cartridge may be empty.Condition Documents get dirty when using the imprinter.
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. 49 and “Cleaning the Feed Path,” on 
p. 43.) 
						

							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 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.
The driver or application does not run correctly.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. 
For details on how to install the application, see the applications 
instruction manual.
The CR-135i II/CR-190i II is not recognized by your 
computer.
Try the following:
 Restart your computer.
 If your computer has multiple USB ports, try using a different USB 
port.
 Disconnect the USB cable, make sure the computer and scanner 
are turned ON, and then reconnect the cable.
Memory becomes insufficient and scanning stops.If you configure scanning conditions that use a large amount of the 
computer’s memory, scanning may stop because of insufficient 
memory. Although this depends on the computer’s memory size, the 
possibility of insufficient memory increases if any of the following 
scanning conditions overlap.
 The page size is set to [Scanner’s Maximum].
 A high resolution (300dpi etc.) is specified for [Dots per inch].
If an error message appears due to insufficient memory while scanning 
is in progress, exit the application, change the scanning conditions 
(e.g. reduce the resolution or page size) and then try scanning again. 
The CR-135i II/CR-190i II turns OFF automatically.Check whether the Auto Power OFF function of the CR-135i II/CR-190i II 
is enabled. If it is enabled, disable it.
Other CausesEven 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.
When the Scanned Image Is Not 
Normal 
						

							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 cause the exterior of the scanner to disfigure or discolor.
•Never spray mild detergent or water directly on the scanning glass. 
The spray could penetrate below the glass and contaminate the 
internal light source and lenses.
Cleaning the Main UnitWipe the scanner with a firmly wrung cloth, moistened slightly with 
water or mild detergent. Then, wipe off with a clean, dry cloth.
Cleaning the Feed Path
If dirt appears on scanned documents, clean the feed path. Clean the 
feed path regularly.
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.
Daily Cleaning 
						

							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 Maintenance 
Cover open to the back.
DRemove the Roller Cover. 
						

							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 rollers.
•Rollers in positions U to Z are turned by the roller in position M. Turn the 
roller in position M to wipe the rollers.
•Rollers in positions A to C are replaceable. (See “Replacing the Rollers,” 
on p. 54.)
FUse a clean dry cloth to clean the entire scanning glass.
GClose the Back Maintenance Cover.



 !
#
$
%&
()*
+

Scanning Glass 
						

							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 the scanner serviced. 
						

							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 heads.
The magnetic heads are located in the positions shown in the 
diagram below.
CClose the Front Maintenance Cover in the order shown in the 
diagram below.
Magnetic Heads 
						

							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 jet nozzles.
Swipe the ink cartridge 2 or 3 times on the Built-in Nozzle 
Cleaning Pad shown in the diagram below. If the text or bitmap 
still appear faint after this operation, replace the ink cartridge 
(See “Replacing the Ink Cartridge,” on p. 51.)
DSet the ink cartridge.For more information, see “Setting the Ink Cartridge and 
Adjusting the Print Position,” on p. 23.
ECarefully replace the Top Cover.
Built-in Nozzle Cleaning Pad 
						

							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 please remove the ink cartridge and 
perform a nozzle cleaning (
See “Cleaning the Ink Jet Nozzles,” on p. 49.)
IMPORTANT
 This operation is for the Cleaning cards in the United States are 
available only in the United States.
 Contact your local authorized Canon dealer or service representative 
for the available cleaning card.
ATurn OFF the scanner.
BDisconnect the scanner and the computer.
CTurn ON the scanner with pressing the START Button and the 
STOP Button.
NOTE
If the scanner turned ON properly, the power LED continues to flash.
DPress the Function Button to turn its LED off.
EPull the Eject Stopper.
FPlace the cleaning card in the document tray.
GPress the START Button to start cleaning.
HPlease repeat steps 6 and 7.A typical cleaning is feeding the cleaning card 3 to 7 times. If the 
scanner is extremely dirty, you may need to use another cleaning 
card.
ITurn OFF the scanner.
JConnect the scanner and the computer.
NOTE
Allow 1 to 2 minutes for the moisture on the Canon CR-Series scanner from 
the cleaning card to thoroughly dry before scanning documents.