Chapter 5 Maintenance

2. Replacing the Transport Rollers

As the rollers start to wear out, feeding quality declines, and document feed errors, such as paper jams, become more likely.

If document feed errors continue to occur after cleaning the rollers, purchase the Roller Replacement Kit and replace the transport rollers (pickup, feed, and retard rollers).

Roller Replacement Cycle

The feeding rollers are consumables that must be replaced after feeding about every 450,000 pages.

When the rollers have fed more than 450,000 pages, a roller replacement message appears on the display panel whenever the scanner is turned ON. When the scanner is configured to reboot with the computer, a roller replacement message also appears on the computer screen.

IMPORTANT

•When the roller replacement message appears, purchase the Roller Replacement Kit and replace the rollers by following the relevant steps in the following sections.

–(See “Removing and Reinstalling the Pickup Roller” on

p.5-10.)

–(See “Removing and Reinstalling the Feed Roller” on p. 5-11.)

–(See “Removing and Reinstalling the Retard Roller” on

p.5-12.)

•When the rollers start to wear out, problems such as paper jams and document misfeeds may occur more frequently. If this happens, replace the rollers, regardless of the page count of the roller usage counter.

•Messages on the display panel can be cleared by pressing the Count Clear key. However, the messages will continue to be displayed each time the scanner is turned ON until the roller counter is reset.

•Make sure to reset the roller counter when replacing the rollers. (See “Checking and Resetting the Page Counter” on p. 5-7.)

■Roller Replacement Kit

The Roller Replacement Kit consists of replacement pickup, feed, and retard rollers. For details, contact your

local authorized Canon dealer or service representative.

Product Name: Roller Replacement Kit

Product Code: 8262B001

Pickup Roller

Feed Roller

Retard Roller

Checking and Resetting the Page Counter

The roller usage counter can be checked and reset using the Roller Counter in the User Mode setting.

IMPORTANT

•This counter shows the number of pages transported by the currently installed feed rollers. Make sure to reset the counter when you replace the rollers.

•The Total Counter shows the total number of pages fed over the life of the scanner, and cannot be reset.

5-7