Canon DR-4580U Onderhoudshandleiding - Pagina 11

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Troubleshooting

If a problem occurs, first check the list below for a description of the problem and the suggested remedy. If

you cannot solve the problem, switch the scanner off, unplug the power cord and call for service.

General Error Table

Problem

Computer does not recognize the

scanner

Double-feed detection is not

operating

Double-feeding

Feed from ADF is not smooth

Jam occurs in ADF

LCD does not light after scanner is

switched on

Scanned image has black dots or

white patches after scanning from

the flatbed

Scanned image has vertical lines

Scanned image is blank

Scanned image is faint

Scanned image is skewed

Scanner rattles during display of

Initializing after power on, then

LCD displays F41 Call Service

Possible Cause

Initialization failed.

Paper dust on the double-feed

detection sensor.

Rollers are dirty.

Paper feed rollers, separation rollers,

retard roller are worn and require

replacement.

Page is creased, torn, or smaller than

106 × 148 mm (4.2 × 5.8 in).

Page has jammed.

Power cord not plugged in.

Document glass and cover sheet are

dirty.

The sensor roller, scanning glass, or

rollers are dirty.

Original was loaded face down in the

ADF, or was loaded face up on the

flatbed.

The sensor roller is dirty.

Document guide on the ADF was not

adjusted to the size of the original

before scanning to prevent skew, or

the original was not loaded straight

on the flatbed.

The optical unit of the flatbed is still

locked with the metal clamp.

Remedy

Switch the computer and scanner

off. Switch on the scanner then

switch on the computer.

Check the SCSI ID and set them

correctly. (

28)

Clean the double-feed detection

sensor.

Clean all rollers. (

41)

Clean all rollers. (

41)

Replace all the rollers.

Scan using the flatbed.

Note the error message in the LCD

and refer to the next table.

Insert the power cord completely.

Clean the document glass and

cover sheet. (

48)

Clean all the parts of the scanning

section. (

41)

Load the document correctly in the

ADF (

30) or flatbed. (

Clean using a well-wrung cloth

moistened with water or a neutral

detergent. (

41)

Set the document guide for the

ADF (

30) or load the original

straight on the flatbed. (

Remove the metal clamp. (

35)

10)