Canon DR-2050C- User Manual

66 Appendices Removing the Feed Roller 1. Pressing the OPEN knob from both sides ( a ), pull the front unit forward to open it ( b ). 2. Open the roller cover on the scanner side. Insert a finger into the depression in the cover and open it. 3. Raise the roller lock lever ( a ), and then slide it to...

Appendices 67 Chapter 3 4. Shift the feed roller to the left to separate it from the shaft, and then remove it. Attaching the Feed Roller 1. Set the feed roller into the hollow inside the roller cover, and align the notch in the roller with the scanner shaft. 2. Slide the roller lock lever to the ri...

68 Appendices 3. Lower the lever to lock the roller shaft. 4. Close the roller cover. Return the cover fully to its original position until you hear it click into place. 5. Gently press the left and right sides of the top of the Front Unit. Return the unit fully to its original position until you he...

Appendices 69 Chapter 3 CAUTIONDo not use excessive force when removing or attaching the rollers. Doing so may damage them. Removing the Retard Roller 1. Pressing the OPEN knob from both sides ( a ), pull the front unit forward to open it ( b ). 2. Holding the edges of the roller cover on the inside...

70 Appendices 4. Shift the Retard Roller to the left to separate it from the shaft, and then remove it. Attaching the Retard Roller 1. Position the retard roller so the notch in the roller is facing the scanner’s shaft. 2. Slide the roller lock lever to the right, and then insert the shaft into the ...

72 Appendices 3. Troubleshooting This section describes the possible problems that might occur during use of the scanner and how to solve them. The Scanner Does Not Turn ON ........................................ P. 72The Scanner Is Not Recognized ........................................ P. 72Slow ...

Appendices 73 Chapter 3 Problem The scanner does not support your USB interface. Solution This product is not guaranteed to operate with all types of USB interfaces. Contact your local authorized Canon dealer or service representative for more information. (See p. 15.) Problem The scanner does not s...

74 Appendices Scanning Is Not Performed Check the following if the scanner does not scan an image even though the scanning operation is performed: • Is the scanner correctly connected to the computer?• Has the scanner driver been installed?• Has the application software been installed correctly? Has...

Appendices 75 Chapter 3 Paper Is Not Ejected Correctly When you are performing page-by-page scanning while a multi-page document is set in the scanner, scanning pauses with the trailing edge of the scanned sheet being engaged by the eject roller. Problem Under these conditions, the scanner enters a ...

Appendices 77 Chapter 3 Symptoms The scanned image is abnormal for certain documents. Problem Functions such as [Auto-detection], [Deskew], or [Border Removal] were used when scanning documents containing text or photos up to their edges. (The scanner cannot accurately process the edges of documents...