Canon imageFORMULA CR-80 マニュアル

If the document is not fed properly or the detection functions do not 
work properly, remedy the problem by checking the following 
conditions.

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.)

Cause and 
Remedy

A 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.)

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.

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-50/80. (See “Cleaning the Ink Jet 
Nozzles,” on p. 49.)

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. 49 and “Cleaning the Inside of the 
Scanner,” on p. 45.)