Canon scanner imageFORMULA CR50 User Manual

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BWhile lowering the down the OPEN lever, open the reading 
unit.
CRemove the paper that has jammed.If the paper is jammed at the pickup area: Pull the paper forward 
and clear the jam from the Maintenance Cover.If the paper is jammed at any other area: Pull the paper forward 
and clear the jam from the nearest opening.
DGently close the reading unit until it clicks into place. 
						

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EGently close the Maintenance Cover until it clicks into place.
Check the following conditions, and take the appropriate action.
The power switch is not in the ON position.Turn the switch into the ON position. (See “Turning ON the Power,” 
on p. 22.)
The power cord is not connected into a power outlet.Connect the power cord into a power outlet. (See “Connecting the 
Power Cord,” on p. 22.)
The Scanner Does Not Turn ON 
						

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If the document is not fed properly or the detection functions do not 
work properly, remedy the problem by checking the following 
conditions.
Feeding Trouble
Condition A paper jam has occurred.
Cause and 
Remedy Check to make sure that the size and thickness of the 
document are within the supported range of the 
scanner, and if the quality of the paper is appropriate.
For cautions on handling documents, see 
“Documents,” on p. 33.
 Documents with rough surfaces may cause a paper 
feed error to occur.
 Dirty or worn rollers inside the scanner may cause a 
paper jam.
Clean the rollers if they are dirty. (See “Cleaning the 
Scanning Glass and Rollers,” on p. 45.) Worn rollers 
must be replaced. Contact your local authorized Canon 
dealer or service representative to have the scanner 
serviced.
 The Separation Roller gap is too wide. Adjust the 
Separation Roller gap. (See “Adjusting the Separation 
Roller Gap,” on p. 52.)
Condition A double feed error often occurs.
Cause and 
RemedyA double feed error may occur when documents with 
different thicknesses are mixed.
If the above-mentioned method is not effective or you are 
using the CR-50/80 scanner, adjust the Separation Roller 
gap. (See “Adjusting the Separation Roller Gap,” on 
p. 52.)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-50/80. (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 Inside of the 
Scanner,” on p. 45.) 
						

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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.
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.
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 
						

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Maintenance
This chapter describes how to clean and maintain the scanner.
To ensure high-quality image scanning, regularly clean your CR-50/80 
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 Inside of the Scanner
Dust or paper particles inside the scanner can cause lines in scanned 
images. Use compressed air for regular cleaning of dust and paper 
particles from inside the scanner. After finishing a large scanning job, 
you should turn OFF the scanner and then clean off any paper particles 
that are remaining.
Cleaning the Scanning Glass and RollersIf 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.
AHook your finger around the open lever and open the 
Maintenance Cover.
Daily Cleaning 
						

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BWhile lowering the open lever, open the reading unit.
WARNING
Do not use flammable liquids to clean the scanner, including alcohol, 
benzene, or paint thinner.
CSpin the rollers while wiping them clean with a firmly wrung 
cloth dampened with water or a mild detergent.
There are 18 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, such as a, b, j, n, o, and p.
Rollers in positions b, d, e, k, and p are turned by the roller in position 
e. Turn the roller in position e to wipe the rollers.
Rollers in positions m and n comprise two rollers each, an upper roller 
and a lower roller.
Do not force the rollers if they will not turn. In this case, wipe dirt only off of 
the exposed area.


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DUse cotton swabs to clean the entire scanning glass. There 
are two scanning glass areas, one on each side. Use a cotton 
swab to wipe dirt from the entire surface of each.
IMPORTANT
Scratches on the scanning glass may cause marks on the images and could 
cause feeding errors. If there are scratches on the scanning glass, contact 
your local authorized Canon dealer or service representative.
EGently close the reading unit until it clicks into place.
FGently close the maintenance cover until it clicks into place.
Scanning 
Glass 
						

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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.
AHook your finger around the open lever and open the 
maintenance cover.
BUse a commercially available audio head cleaner to clean the 
magnetic heads.
The magnetic head is located in the position shown in the 
diagram below.
CGently close the maintenance cover until it clicks into place.
Magnetic Head 
						

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Cleaning the Ink Jet Nozzles
Ink that collects around the ink jet nozzles may stain your documents 
or cause the text 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 becomes faint.
AHook your finger around the open lever and open the 
Maintenance Cover.
BDampen a cloth with water, wring the cloth out thoroughly, 
and then wipe off the dirt around the ink absorber.
IMPORTANT
If your documents are stained and smudged from printing even after you 
clean the ink absorber, you should replace the ink absorber. Contact your 
local authorized Canon dealer or service representative.
CRemove the ink cartridge.For more information, see “Replacing the Ink Cartridge,” on p. 50.
DUse a dry cotton swab to wipe off any ink on the ink jet nozzle.If the text still appear faint after this operation, replace the ink 
cartridge (See “Replacing the Ink Cartridge,” on p. 50.)
ESet the ink cartridge.For more information, see “Setting the Ink Cartridge and 
Adjusting the Print Position,” on p. 24.Ink Absorber 
						

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FCarefully replace the Imprinter Cover.
GGently close the Maintenance Cover until it clicks into place.
Make the following adjustments to maintain scanning quality.
Replacing the Ink CartridgeThe ink cartridge needs to be replaced if the printed text becomes 
scratchy or faint even if you have cleaned the ink jet nozzle. Replace 
the ink cartridge according to the following procedure below.
IMPORTANT
 To replace the ink cartridge, turn the scanner OFF before removing 
the Maintenance Cover. After the ink cartridge is set, replace the 
Maintenance Cover, and then turn the scanner back ON.
 Finish up the unpacked ink cartridge as soon as possible. More 
frequent cleaning of the ink cartridge is required if long time elapses 
after unpacking.
NOTE
Use an ink cartridge. (See “About the Ink Cartridge,” on p. 24.)
Do not use more than one cartridge by rotation. If you do so, applications 
cannot check the ink level precisely.
Maintenance