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Canon Color imageCLASS LBP712Cdn imageCLASS LBP712Cdn User Guide - Page 554

When You Cannot Print Properly

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Troubleshooting When You Cannot Print Properly 0YS1-06J If printing results are not satisfactory, or paper creases or curls, try the following solutions. If the problems persist, contact your local authorized Canon dealer or the Canon help line. Smudge Marks Appear on the Bottom Edge of Printouts(P. 550) Smudges Appear on Printouts(P. 550) Toner Smudges and Splatters Appear(P. 551) Afterimages Appear in Blank Areas(P. 551) Printouts Are Faded(P. 552) A Portion of the Page Is Not Printed(P. 552) Streaks Appear/Printing is Uneven(P. 553) White Spots Appear(P. 554) Black Spots Appear(P. 555) 548

Section	Page
Contents	2
Important Safety Instructions	8
Installation	9
Power Supply	11
Handling	12
Maintenance and Inspections	15
Consumables	16
Basic Operations	20
Parts and Their Functions	22
Front Side	23
Back Side	25
Interior	27
Multi-Purpose Tray	28
Paper Drawer	29
Operation Panel	30
Display	33
Using the Operation Panel	35
Entering Text	38
Turning ON/OFF the Power	40
Performing a Quick Start of the Machine	42
Loading Paper	44
Loading Paper in the Paper Drawer	46
Loading Paper in the Multi-Purpose Tray	52
Loading Envelopes or Postcards	55
Loading Preprinted Paper	59
Specifying Paper Size and Type	63
Specifying Paper Size and Type in the Paper Drawer	64
Specifying Paper Size and Type in the Multi-Purpose Tray	66
Saving Energy	68
Entering Sleep Mode	69
Setting Auto Shutdown Time	71
Printing a Document	75
Printing from a Computer	76
Basic Printing Operations	78
Canceling Prints	83
Various Print Settings	85
Enlarging or Reducing	87
Switching 1-Sided and 2-Sided Printing	89
Collating Printouts by Page	91
Printing Multiple Pages onto One Sheet	93
Printing Posters	95
Printing Booklet	97
Printing Borders	99
Printing Dates and Page Numbers	100
Printing Watermarks	102
Setting Color Mode	104
Printing Specific Pages onto Different Paper	106
Selecting Document Type	108
Saving Toner	110
Combining and Printing Multiple Documents	112
Configuring Print Settings to Your Needs	116
Registering Combinations of Frequently Used Print Settings	117
Changing Default Settings	119
Using Useful Print Functions	121
Printing from USB Memory (USB Direct Print)	123
Changing Default USB Print Settings	133
Printing a Document Secured by a PIN (Secured Print)	135
Using the Encrypted Print	140
Printing a Document Stored in the Machine (Stored Job Print)	141
Deleting a Document Stored in the Machine	145
Setting a Name or PIN to a Box	148
Printing without Opening a File (Direct Print)	150
Print Settings for Direct Print	154
Printing Received E-mail (E-Mail Print)	165
Can Be Used Conveniently with a Mobile Device	173
Connecting to a Mobile Device	174
Making the Best Use of the Machine by Utilizing Applications	175
Using AirPrint	177
Printing with AirPrint	181
If AirPrint Cannot Be Used	184
Using Google Cloud Print	185
Managing the Machine Remotely	189
Network	191
Connecting to a Network	192
Connecting to a Wired LAN	194
Setting IP Addresses	196
Setting IPv4 Address	197
Setting IPv6 Addresses	201
Configuring the Machine for Printing from a Computer	205
Configuring Printing Protocols and WSD Functions	206
Enabling IPP/IPPS	212
Setting Up Print Server	221
Configuring the Machine for Your Network Environment	225
Configuring Ethernet Settings	226
Setting a Wait Time for Connecting to a Network	228
Configuring DNS	229
Configuring WINS	235
Configuring SNTP	238
Monitoring and Controlling the Machine with SNMP	241
Configuring Settings for Device Management Software	247
Configuring SMB	251
Configuring Settings on the Computer for Printing	254
Security	257
Protecting the Machine from Unauthorized Access	258
Preventing Unauthorized Access	259
Setting Access Privileges	261
Setting the System Manager Password	262
Setting the Department ID Management	264
Setting a Remote UI PIN	271
Restricting Communication by Using Firewalls	273
Specifying IP Addresses for Firewall Rules	274
Specifying MAC Addresses for Firewall Rules	280
Setting a Proxy	283
Restricting the Machine's Functions	286
Restricting the Printing Operations	287
Restricting USB Functions	291
Restricting Operation Panel Functions	294
Disabling HTTP Communication	297
Disabling Remote UI	298
Disabling the LAN Port	299
Hiding the Print Job History	300
Implementing Robust Security Features	302
Using TLS for Encrypted Communications	303
Configuring IPSec Settings	307
Configuring IEEE 802.1X Authentication	318
Configuring Settings for Key Pairs and Digital Certificates	324
Generating Key Pairs	326
Using CA-issued Key Pairs and Digital Certificates	335
Verifying Key Pairs and Digital Certificates	338
Using Remote UI	341
Starting Remote UI	342
Remote UI Screens	345
Managing Documents and Checking the Machine Status	351
Enabling End Users to Operate Documents	357
Setting Up Menu Options from Remote UI	360
Saving/Loading Registered Data	362
Saving Registered Data	363
Loading Registered Data	365
Setting Menu List	368
Setup Menu	369
Control Menu	370
Paper Source	384
Network	385
Layout	405
Print Quality	409
Interface	424
User Maintenance	427
Print Mode	443
Settings Specific to Print Mode	445
UFR II	446
PCL	447
Imaging	453
XPS	463
PDF	474
PS	485
MEAP Settings	495
Check Counter	496
Initialize Menu	497
Utility Menu	498
Job Menu	503
Reset Menu	505
Select Feeder Menu	507
Troubleshooting	516
Clearing Jams	518
When an Error Message Appears	526
Common Problems	548
Installation/Settings Problems	549
Printing Problems	552
When You Cannot Print Properly	554
Printing Results Are Not Satisfactory	556
Paper Creases or Curls	563
Paper Is Fed Incorrectly	565
When a Problem Cannot Be Solved	566
Maintenance	569
Cleaning the Machine	571
Exterior	572
Fixing Unit	573
Replacing Toner Cartridges	574
How to Replace Toner Cartridges	577
Replacing the Waste Toner Container	579
How to Replace the Waste Toner Container	580
Relocating the Machine	582
Maintaining and Improving Print Quality	584
Adjusting Print Density	585
Correcting Color Mismatch and Hues	587
Adjusting Print Position	590
Printing Reports and Lists	594
Viewing the Counter Value	603
Checking Consumables	606
Initializing Settings	608
Initializing Menu	609
Initializing the Network Settings	610
Appendix	612
Third Party Software	613
Feature Highlights	614
Going Green and Saving Money	615
Improving Efficiency	617
So Much More	620
Specifications	623
Machine Specifications	624
Paper	627
Consumables	632
Optional Items	634
Installing the ROM	636
Installing an SD Card	640
Manuals Included with the Machine	644
Using User's Guide	645
Screen Layout of User's Guide	646
Viewing User's Guide	650
Managing MEAP Applications	652
Using FTP Clients	653
Preparing for Using the FTP Server	654
Printing via FTP Client (FTP Print)	657
Specifying Settings via FTP Client	659
Others	666
Basic Windows Operations	667
Font Samples	674
Menu Route Map	679
Notice	680
Office Locations	683