Canon ImageFORMULA DR-2050C Betriebsanleitung

Document Scanner

Maintenance Guide

DR-2050C

DR-2050SP

Chapter 3

Appendices

1. Regular Maintenance ......................... 58

Cleaning the Scanner ................................ 58

Cleaning Inside the Scanner ..................... 58

Cleaning the Scanning Glass and the

Rollers ....................................................... 59

Cleaning the Metal Rollers ........................ 61

2. Removing and Attaching the Rollers 62

Roller Replacement Cycle ......................... 62

Resetting the Counter ............................... 63

Removing and Attaching the Feed Roller .. 65

Removing and Attaching the Retard

Roller ......................................................... 68

3. Troubleshooting ................................. 72

The Scanner Does Not Turn ON ............... 72

The Scanner Is Not Recognized ............... 72

Slow Scanning Speed ............................... 73

Scanning Is Not Performed ....................... 74

Documents Are Not Fed Correctly ............ 74

Paper Is Not Ejected Correctly .................. 75

Saved Image Files Do Not Open ............... 75

Scanning Results Are Not as Expected .... 75

58 Appendices

1. Regular Maintenance

Perform the regular maintenance described below to maintain peak scanning

quality.

CAUTION

• When cleaning the scanner or the inside of the scanner, turn

OFF the power switch and unplug the power cord from the

outlet.

• Do not use spray cleaners to clean the scanner. Precision

mechanisms inside the scanner may get wet and result in

malfunction.

• Never use paint thinner, alcohol, or other organic solvents to

clean the scanner. Such solvents can damage or discolor the

exterior of the scanner, or create a risk of fire or electric shock.

Cleaning the Scanner

Moisten a cloth with plain water, wring out the excess water, and then wipe the

exterior of the scanner to clean it.

Cleaning Inside the Scanner

Dust or paper particles inside the scanner can cause lines in scanned images.

Use a blower 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 any paper particles that are remaining.

Appendices 59

Chapter 3

Cleaning the Scanning Glass and the Rollers

If your scanned images contain lines or smudges, or if the scanned documents

are dirty, then the scanning glass or the rollers inside the scanner may be dirty.

Clean them periodically.

1. Open the document feed tray.

2. Pressing the OPEN knob from both sides (a), pull the front unit forward to

open it (b).

3. Use a blower to keep the interior of the scanner free of dust and paper particles.

4. Use a clean dry cloth to wipe dirt off the scanning glass.

Wipe both the top and bottom scanning glasses.

CAUTION

Do not use spray type cleaners to clean the scanner. Precision

mechanisms, such as the light source, may get wet which will

cause a malfunction.

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.

60 Appendices

5. Rotate the rollers (a) and (b) as you clean them. Moisten a cloth with plain

water, wring out excess water, wipe the rollers and then dry it with a clean dry

cloth.

6. Remove the feed roller and retard roller. (See p. 66, p. 69.)

IMPORTANT

After removing the feed roller and retard roller, clean them and then return

them to the scanner.

7. Wipe the removed rollers with a firmly wrung cloth moistened with water.

8. Attach the rollers that were removed. (See p. 67, p. 70.)

9. Gently press the left and right sides of the top of the front unit. Return the unit

fully to its original position until you hear it click into place.

Feed Roller

Retard Roller

Appendices 61

Chapter 3

Cleaning the Metal Rollers

1. Turn on the scanner.

2. Open the document feed tray.

3. Pressing the OPEN knob from both sides (a), pull the front unit forward to

open it (b).

4. Use a clean dry cloth to wipe the metal rollers ( parts in the illustration).

Press the Scan button and Stop button at the same time to rotate the metal

rollers in small increments.

CAUTION

• There are two metal rollers, one for the Front Unit and one for the

scanner. Be sure to wipe both of them. Do not spray water or

neutral detergent directly on the metal rollers. Doing so can

damage precision mechanisms, such as the light source.

Moisture on the scanner or your hands also creates the risk of

electric shock.

• Scanner power needs to be turned on when cleaning the metal

rollers. Because of this, you need to exercise extra caution when

cleaning them.

62 Appendices

2. Removing and Attaching the Rollers

Follow the relevant procedure to remove and attach the feed roller and retard

roller when you clean or replace them.

IMPORTANT

Feed rollers are consumable parts. When the rollers start to wear out, paper

jams and misfeeds may occur more often. When this happens, buy an exchange

roller kit, and replace the feed roller and the retard roller.

CAUTION

Do not use excessive force when removing or attaching the

rollers. Doing so may damage them.

Roller Replacement Cycle

When the number of pages scanned exceeds 30,000, a roller replacement

message will appear when the computer is started. When you are using the

DR-2050SP in the Presentation mode, a message prompting you to change the

rollers is displayed after the opening screen when the scanner’s power is turned

ON. Buy an exchange roller kit, and replace the feed roller and the retard

roller.

IMPORTANT

• If misfeeds happen often, check the rollers for wear, and replace them if

necessary before the message is displayed.

• Be sure to reset the counter after replacing the rollers. (See “Resetting the

Counter,” on p. 63.)

• Contact your local authorized Canon dealer or service representative for

information about the exchange roller kit (feed roller and retard roller).

When using the DR-2050SP in Presentation mode

Appendices 63

Chapter 3

Resetting the Counter

After replacing the feed rollers, open the [Counter setup] dialog box and reset

the counter.

1. Follow the procedure below to open the [Counter setup] dialog box.

1. Click the [Start] button, Æclick [Settings] on the Start menu Æclick

[Control Panel]. (For Windows XP, click the [Start] button Æclick [Control

Panel].)

2. For Windows XP, switch the Control Panel to Classic View, or select

[Printers and Other Hardware] in the working field.

Printers and Other HardwareControl Panel (category view)

Control Panel (classic view)

64 Appendices

3. Select [CANON DR-2050C USB], and then click [Properties].

4. Click the [Counter] tab.

Appendices 65

Chapter 3

2. Click the [Reset] button, and then make sure that the [Retard and Feed roller]

has been set to 0.

Removing and Attaching the Feed Roller

Follow the procedure below to remove and attach the feed roller for cleaning

or replacement.

Note

When attaching the feed roller during installation, operate the roller fastening

lever according to the removal procedure and then attach the feed roller.

CAUTION

Do not use excessive force when removing or attaching the feed

roller. Doing so may damage them.

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