Problem

Lines, smudges, or dirt appear on the

 

scanned image.

Cause

The scanning glass or rollers inside the

 

scanner are dirty.

Solution

Clean the scanning glass and rollers. (See

 

“Regular Maintenance” on p. 5-2.)

 

If lines still appear on the image even after you

 

clean the scanning glass and rollers, the

 

scanning glass inside the scanner may be

 

scratched. Contact your local authorized

 

Canon dealer or service representative.

 

 

Problem

The scanned image is abnormal for

 

certain documents.

Cause

A detection function such as border

 

removal is enabled when scanning a

 

document that includes text or photos

 

extending to the edge of the page (the

 

scanner cannot accurately process the

 

edges of documents).

Solution

When a page has text or photos extending to its

 

edges, turn the detection functions off or scan

 

that page individually.

 

 

Problem

The scanned image is abnormal in some

 

applications.

Cause

A function not supported by the

 

application was used.

Solution

Some applications do not support functions

 

such as auto-detection of page size, so

 

scanning with such applications will produce

 

abnormal scanned images.

 

If abnormal image appearance seems to be

 

application-dependent, try scanning with auto-

 

detection disabled.

 

 

 

Chapter 6 Practical Examples

 

 

 

Problem

There are white lines or streaks in the

 

scan image.

Solution

Clean the scanning glass (both front and back)

 

and the rollers (feed roller and retard roller).

 

When cleaning adhesive dirt such as glue or

 

corrective fluid, try wiping the streaky areas

 

with considerable vigor. If the problem has not

 

been solved after cleaning, it is possible that

 

the scanning glass is scratched. Contact your

 

vendor or service center.

 

 

 

6-8