Print quality problems | Canon B640 instruction

Print quality problems

If the printout is unsatisfactory, consider the following suggestions:

❚Most paper has a right side and a wrong side. If the print quality is poor, try turning the paper over and printing on the other side.

❚If characters and images are blurred, check that you are using the correct kind of paper, see p. 6.

❚If ink gets on the printer’s platen, the reverse side of the printed page will have smudges. In this case, clean the platen area with a soft dry cloth. See p. 89.

❚If white streaks or missing dots appear on printed pages, perform the print head cleaning operation. See p. 90.

❚If the quality is not crisp and clear after cleaning the print head, repeat the head cleaning procedure again. If output is still not satisfactory after clean- ing the print head five consecutive times, replace the BJ cartridge. See p. 91.

❚If the following print quality problems occur in the entire printing area, check for the most probable cause and remedy as listed below.

	Print Results	Most Probable Cause	Remedy
	Smudged	Paper type	Try a different type. See p. 6.
	Smudged	Paper type	Try a different type. See p. 6.		8
	Blurred	Paper type	Try a different type. See p. 6.		8


	Faded	Print head is clogged	Perform head cleaning
		or out of ink.	or replace the BJ cartridge.
			See pp. 90 and 91.
	White Streaks	Print head is clogged.	Perform head cleaning or
			reinstall the BJ cartridge.
			See pp. 10 and 90.
	Dots Missing	Print head is clogged.	Perform head cleaning.
			See p. 90.
	Irregular Dots	Print head is clogged.	Perform head cleaning.
			See p. 90.

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Canon B640 manual Print quality problems, Print Results Most Probable Cause Remedy

Contents

Faxphone B640 How to Use this Users Guide Arrow buttons Welcome Disclaimer Case of Equipment Malfunction Important safety instructions Vii Precautions General Precautions Others Table of Contents Registering One-touch Speed Dialing numbers Registering Coded Speed Dialing numbers Settings and Activity Reports 101 Setting UP Distinctive Ring Pattern Detection Drpd feature Unpacking Removing the shipping materials Unpacking Paper Tray Assembling the FaxphoneAttaching components Paper Tray Cover Faceplate Connecting the AC power cordRear of the unit Selecting the right kind of paper Setting the paper sizeLoading the paper Loading the paper Loading the paper Installing the BJ cartridge BJ cartridge guidelines Handling the BJ cartridge Open the front cover of the Faxphone Installing the BJ cartridgeCartridge Faxphone Close the front cover of the Faxphone White streak Connecting the phone line Connecting to the wall jack Setting the TEL Line Type Setting up to receive faxes Selecting the receiving mode Setting Fax Only Mode Fax Only ModeDistinctive Ring Pattern Detection Drpd Feature See p Receiving documents in Fax Only Mode Receiving documents and calls in Fax/Tel Mode Fax/Tel ModeSetting Fax/Tel Mode Press Receive Mode until Fax/Tel Mode Appears on the LCD Receiving documents and calls in Manual Mode Manual ModeSetting Manual Mode Press Receive Mode until Manual Mode appears on the LCD Receiving documents and messages in Ans. Machine Mode Ans. Machine ModeSetting Ans. Machine Mode Recording the outgoing message Set your answering machine to answer Distinctive Ring Pattern Detection Drpd feature Types of ring patterns Use or to select Drpd Press START/COPY Turning on Drpd and assigning a setting to a ring patternUse or to select RX Settings Press START/COPY Use or to select on Press START/COPY Use or to select a ring pattern Faxphone set to Fax Only Mode Fax/Only displayed on the LCD How Drpd responds to calls Faxphone set to Manual Mode Manual displayed on the LCD Faxphone set to Fax/Tel Mode Fax/Tel displayed on the LCD Preparing To USE Your Faxphone Main components of the Faxphone Front view Rear view Faxphone controls the Operation Panel Press Faxphone controls the Operation Panel Displays the menu title Registering your name and numberMoving through the main menus You can now make a selection Entering a number After selecting or entering a value, press Entering a name To enter Press this numeric button Personalizing your Faxphone Identifying your documents Press START/COPY when you finish entering the new date Use or to select User SettingsRegistering the date and time Registering your telephone/fax number and name Enter the time using the numeric buttonsPress START/COPY when you finish entering the new time Press Stop Use or to select Enter Your TEL Press START/COPY when you finish entering your fax numberPress START/COPY when you finish entering your name Numeric buttons Enter the number up to 50 digits using the numeric buttons Registering One-touch Speed Dialing numbers and names Press START/COPY to register the number Press START/COPY to register the name Registering Coded Speed Dialing numbers and names Handling 3 Documents Size Preparing documentsTypes of documents you can scan Thickness Loading the document Document Adding pages to the document Setting the resolution Setting the resolution and densityWhat is resolution? Density control Making Copies Enter the number of copies up to 99 using Numeric buttons Copying documents Sending Faxes Sending methods Preparing to send a documentDialing methods Manual Sending Sending documentsDirect Sending Feed the document face-down into Automatic Dialing Transmitting OK Memory Sending Press Send Options Redialing Canceling SendingTo cancel automatic redialing Manual Messages displayed during sending Transmit Removing a jammed sheet Clearing document jams ejecting a document from the ADFUntil it clicks Delayed Sending Use or to select Delayed TX Delayed sequential broadcasting Canceling Delayed Sending Press Clear Sending a document to more than one location Sequential broadcastingDial the other party’s fax number Receiving Faxes Receiving documents Receiving documents in Manual Mode Receiving documents Receiving documents in Fax Only Mode Receiving documents in Fax/Tel Mode Receiving documents in Ans. Machine Mode Receiving documents in memory Printing documents in memory Receiving while registering, copying or printing Settings and Activity Reports User menu settings User menu settings Page Use or to select RX Settings SettingsHow to change a setting Use or to select Incoming Ring Press Stop to finish registration and return to standby mode TEL Registration Report Settings RX Settings FAX Printer How to print a report Activity reports Activity management report One-touch Speed Dialing list Coded Speed Dialing list User’s data list Activity report Sending Activity report Receiving Multi-activity report Memory clear list Solutions to Common Problems Frequently Asked Questions Automatic Document Feeder ADF jams Paper jamsTo remove a jammed document Open the front cover Recording paper jamsTo remove jammed paper Bottom To clean the glass scanning window Cleaning the Faxphone exteriorCleaning the glass scanning window Periodic care To clean the printer area Cleaning the printer areaOpen the front cover Close the front cover Cleaning the BJ cartridge print head Press Cleaning Replacing the BJ cartridge Frequently Asked Questions Transmitting Receiving Telephone Copying Sharing a Telephone Line Print quality problems Print Results Most Probable Cause Remedy Error codes, messages and solutions Message Error Code Cause Action Error codes, messages and solutions 100 Case of a power failure During a power failure Specifications Scanning sheet size 103 Appendix Document sizes What happens when Fax/Tel Mode is selected Glossary ADF 107 108 109 Index Automatic 111 Packing list Paper 112