Canon MF55DD Series Print Quality Problems

Print Quality Problems

9-16

Troubleshooting

9

Print Quality Problems

The print quality is not what you expect; print is not clear, has missing dots or white streaks.

Q Are the size, thickness and type of the paper you are using within the

speciﬁcations of the machine?

A Check that the paper you are using is supported by the speciﬁcations of the

machine. (See "Print Media Requirements," on p. 2-1.)

Q Is the cartridge installed correctly?

A Make sure the cartridge is installed correctly. (See "Install the cartridge," in the

Set-Up Sheet.)

Q Is any toner left in the cartridge?

A See "When to Replace the Cartridge," on p. 8-4, and replace the cartridge if

necessary. (See "Replacing the Cartridge," on p. 8-14.)

Q Is the exposure adjusted correctly?

A Adjust the exposure correctly using [Exposure]. (See "Adjusting the Exposure

(Density)," on p. 5-9.)

Copies are dirty.

Q Is the platen glass or the platen glass cover clean?

A Clean the platen glass or the platen glass cover. (See "Cleaning the Scanning

Area," on p. 8-2.)

Q Is the cartridge free of damage?

A If there is a scratch on the cartridge, replace with a new one. (See "Replacing

the Cartridge," on p. 8-14.)

Q Is the machine adjusted to room temperature? If not, condensation might build

up inside the machine.

A Allow at least 2 hours for the machine to adjust to room temperature before

attempting to use it.

Contents

Main Series Basic Guide Cyan Magenta Yellow Black Series Basic Guide ENG Page Page Manuals for the Machine Software Guide Facsimile Guide Set-Up Sheet How This Manual Is Organized Contents Chapter 1 Introduction Chapter 2 Paper Handling Chapter 5 Copying Chapter 4 Printing from Your Computer Chapter 3 Document Handling Chapter 6 Scanning Chapter 8 Maintenance Chapter 7 System Monitor Page Preface Keys Used in This Manual Symbols Used in This Manual How to Use This Manual Page Legal Notices FCC (Federal Communications Commission) Laser Safety International Energy Star Program CDRH Regulations Page Legal Limitations on the Usage of Your Product and the Use of Images Important Safety Instructions Installation Power Supply Handling Maintenance and Inspections Page Consumables Other Warnings Page Introduction Customer Support Main Components of the Machine This section describes the main components of the machine. MF5550 Front View ab c d e f g h i Page Rear View d e f bc a Operation Panel opq rk a bcd efgh i j MF5530 Standby Display Energy Saver Mode Setting the Energy Saver Mode Manually Press [Energy Saver]. Restoring from the Energy Saver Mode Manually Press [Energy Saver]. Page Paper Handling Print Media Requirements Page Print Media Requirements 2-3 Printing Areas Envelope NOTE Copying areas are a little larger than printing areas. Feeding direction Loading Paper Loading Paper in the Cassette Pull out the cassette completely. Fan the paper stack rst, then tap the edges on a at surface to even the stack. Page Pinch and slide the width slide guides to t the paper stack. Insert the cassette into the machine. Loading Envelopes in the Cassette Page Page Pinch and slide the width slide guides to t the envelopes. Insert the cassette into the machine. Specify the paper type. Loading Paper in the Multi-Purpose Feeder Slide the slide guides to t the size of the paper you want to load. Insert the paper straightly in the multi-purpose feeder with the print side up. Loading an Envelope in the Multi-Purpose Feeder Specify the paper type. Orientation of the Document and the Paper Loading Selecting the Paper Output Area Paper Type and Paper Output Area Select the suitable paper output area depending on the paper type and your purpose. Face Down Paper Output Area Face Up Paper Output Area Document Handling Document Requirements Problem Documents Scanned Area of a Document LTR Setting Up Documents AB Placing a Document on the Platen Glass Open the platen glass cover. Place your document face down on the platen glass. Gently lower the platen glass cover. Loading Documents in the ADF Document Handling Slide the slide guides to the width of the document. Load the documents face up in the ADF. Document Handling The Paper Path of the ADF Printing from Your Computer Before Printing Page Page Page Page Page Copying Documents You Can Copy Page Specifying the Paper Size and Type (Common for Cassette and Multi-Purpose Feeder) Specifying the Paper Size Press [ ] or [ ] to select <PAPER SIZE> press [Set]. Press [Menu]. Press [ ] or [ ] to select <COMMON SETTINGS> press [Set]. Specifying the Paper Type Press [Menu]. Press [ ] or [ ] to select <COMMON SETTINGS> press [Set]. Press [ ] or [ ] to select <PAPER SETTINGS> press [Set]. Press [ ] or [ ] to select <PAPER TYPE> press [Set]. Press [ ] or [ ] to select the appropriate paper type press [Set]. Press [Stop/Reset] to return to the standby display. Setting Enlarging/Reducing Enlarging/Reducing Using Preset Copy Ratios Press [Enlarge/Reduce]. Press [ ] or [ ] to select <PRESET> press [Set]. Press [ ] or [ ] to select the copy ratio. Enlarging/Reducing Using Custom Copy Ratios Press [Enlarge/Reduce]. Press [ ] or [ ] to select <ZOOM RATIO> press [Set]. Use the numeric keys to enter the copy ratio. Improving Copied Image Adjusting the Image Quality (Resolution) Press [Image Quality]. Press [ ] or [ ] to select the image quality. Adjusting the Exposure (Density) Press [Exposure]. Press [ ] or [ ] to select the exposure mode. Special Features 5-10 Special Features Collate Copy When Loading Documents in the ADF Load documents face up in the ADF. For details on how to load documents in the ADF, see "Loading Documents in the ADF," on p. 3-4. Page Page Scanning Before Scanning Make sure there is the corresponding scanner driver name or icon. Scanning Methods Using [SCAN] on the Operation Panel Place the document face down on the platen glass. Press [SCAN]. Follow the instructions on the screen of your computer to complete the scanning. Page Page System Monitor Checking the Status of Print and Fax Jobs Conrming and Deleting a Print Job Press [Status Monitor]. Press [ ] or [ ] to select <PRINT> press [Set]. Conrming and Deleting a Fax TX Job Press [Status Monitor]. Press [ ] or [ ] to select <FAX TX> press [Set]. Press [ ] or [ ] to conrm the fax/telephone number. If you want to delete the fax job, press [Set]. Page Page Maintenance Periodic Cleaning Page Cleaning the ADF Area When to Replace the Cartridge Remove the cartridge from the machine. Rock the cartridge ve or six times to distribute the toner evenly. Reinstall the cartridge in the machine. Make a few test copies. Print Yield Approximate Print Yield Maintenance Handling and Storing the Cartridge This section describes the precautions to ensure optimum copy quality. Handling Precautions Storage Precautions Storing Partially Used Cartridges Recycling Used Cartridges The Clean Earth Campaign THE CANON CARTRIDGE RECYCLING PROGRAM U.S.A. PROGRAM Packaging Option A-1: Single Box Return Option B: Volume Box Return Option A-2: Multiple Box Return Shipping Option A: UPS Pick-up Option B: MBE Drop off CANADA PROGRAM-CANADA PROGRAMME Option A: Single Box Return Option B: Volume Box Return (eight or more cartridges) Page Replacing the Cartridge Open the front cover. Remove the cartridge from the machine. Page Page Page Page Carrying the Machine by the Sides Maintenance Transporting the Machine by Car Troubleshooting Clearing Jams Removing Jammed Paper from Inside the Machine Page Remove the cartridge. Page Page Page Insert the cartridge back into the machine, then close the front cover. Removing Jammed Paper from the ADF Open the ADF and gently remove the jammed paper from the ADF. Page LCD Messages Page *xxx stands for a number. Paper Feeding Problems Page Page Copying Problems Print Quality Problems Page Printing Problems Scanning Problems General Problems If You Cannot Solve the Problem Page Machine Settings Accessing the Machine Settings Page Menu Descriptions COMMON SETTINGS (The factory default setting is in bold face.) COPY SETTINGS (The factory default setting is in bold face.) Page Appendix Specications Page Index Symbols A C D E F G H I N O P Q R S T U W Z