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Cleaning the Toner Density Sensor

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7. Maintaining the Printer Cleaning the Toner Density Sensor Clean the toner density sensor when the following message appears on the control panel. "Sensor cleaning required." • Be careful not to trap your fingers when opening or closing the top cover. 1. Pull up top cover open lever to open the top cover. CBK028 7 2. Lift out the cyan print cartridge. CBK245 180

Section	Page
Operating Instructions <Hardware Guide>	1
TABLE OF CONTENTS	3
How to Read This Manual	8
Symbols	8
Model-Specific Information	9
Positions of WARNING and CAUTION Labels	10
Power Switch Symbols	11
Manuals for This Printer	12
List of Options	13
Operating Instructions	14
Reading the HTML Manuals on the CD-ROMs	14
Reading the HTML Manuals That You Install on the Computer	14
1. Guide to the Printer	17
Exterior: Front View	17
Exterior: Rear View	19
Interior	21
Control Panel	23
Display Panel	25
2. Setting Up the Printer	27
Printer Setup Procedure	27
Place to Install	28
Unpacking	32
Turning the Printer's Power On and Off	38
Turning on the Power	38
Turning off the Power	40
Setting the ECO Night Sensor	41
Selecting the Display Language	44
Test Printing	45
3. Installing Options	47
Available Options	47
Order of Option Installation	47
Where to Install Options	47
Attaching the Paper Feed Unit	50
Installing the Memory Expansion Units	53
Installing the SDRAM Module	53
Installing the Hard Disk	56
Installing the Interface Units	59
Installing the Gigabit Ethernet Board	59
Installing the Wireless LAN Interface Board	62
Installing the IEEE 1284 Interface Board	64
Installing the SD Memory Card Options	67
4. Connecting the Printer	71
Ethernet Cable Connection	71
Reading the LED Lamps	74
USB Cable Connection	75
Digital Camera Connection	76
Parallel Cable Connection	79
5. Configuration	81
Ethernet Configuration	81
Specifying an IP Address (No DHCP)	82
Receiving an IP Address Automatically (DHCP)	84
Configuring Network Settings When Using NetWare	86
Setting the Ethernet Speed	87
Wireless LAN Configuration	90
Setting the SSID	92
Confirming Wireless Network Connectivity	93
Cautions When Using a Wireless LAN	94
Setting Security Method of Wireless LAN	95
Setting a WEP Key	95
Setting WPA	96
Configuring IEEE 802.1X	100
Installing a Site Certificate	100
Installing Device Certificate	100
Enabling SSL	101
Setting Items of IEEE 802.1X for Ethernet	102
Setting Items of IEEE 802.1X for Wireless LAN	104
6. Loading Paper	107
Supported Paper for Each Tray	107
Symbols	107
Standard Paper Feed Tray	107
Optional Paper Feed Tray	108
Bypass Tray	109
Supported Paper Types	110
Plain Paper	110
Middle Thick	110
Thick Paper	110
Thin Paper	111
Letterhead	112
Label Paper	112
Coated Paper (Glossy)	112
Coated Paper (Glossy: Thick)	112
Coated Paper (Matted)	113
Coated Paper (Matted: Thick)	113
Special Paper	114
Preprinted Paper	114
Color Paper	114
Recycled Paper	115
Cardstock	115
Bond Paper	115
Envelopes	116
Storing Paper	117
Non-Recommended Paper Types	118
Print Area	119
Loading Paper in Trays	121
Loading Paper into a Standard or Optional Paper Feed Tray	121
Loading paper in the optional paper feed tray	124
Loading legal size paper	126
Setting a paper size by using the control panel	130
Specifying custom size paper for standard paper feed tray	131
Specifying a paper type for standard or optional paper feed tray	133
Loading Paper onto Bypass Tray	134
Specifying standard size paper for the bypass tray	136
Specifying custom size paper for the bypass tray	137
Specifying a paper type for the bypass tray	139
Loading Envelopes	141
Loading Envelopes onto Bypass Tray	141
Specifying envelope size for the bypass tray	143
Printing on Fixed-Orientation Paper	145
Registering Unique Names to Paper Types	147
Registering Names to Paper Types	147
Setting User Paper Types to Trays	147
Printing Using Registered Paper Types	148
7. Maintaining the Printer	149
Replacing the Print Cartridge	149
Replacing the Waste Toner Bottle	156
Replacing the Intermediate Transfer Unit	163
Replacing the Maintenance Kit	174
Cautions When Cleaning	181
Cleaning the Toner Density Sensor	182
Cleaning the Friction Pad and the Paper Feed Roller	184
Cleaning the Registration Roller and the Paper Tray	187
8. Adjusting the Printer	191
Adjusting the Color Registration	191
Correcting the Color Gradation	193
Setting the Gradation Correction Value	193
Viewing the Gradation Correction Sheet	196
Resetting the Gradation Correction Value to the Initial Value	197
Adjusting Printing Position	199
9. Troubleshooting	203
Error and Status Messages Appear on the Control Panel	203
Status Messages (in alphabetical order)	203
Alert Messages (in alphabetical order)	204
Panel Tones	210
Printer Does Not Print	211
Checking the Port Connection	212
Windows	212
Mac OS X	213
Other Printing Problems	214
When You Cannot Print Properly	214
Paper Misfeeds Occur Frequently	217
The printed image is different from the image on the computer	219
When Printer is Not Functioning Properly	221
Additional Troubleshooting	224
10. Removing Misfed Paper	227
When Paper is Jammed	227
Paper Misfeed Message (A)	229
Misfeed Tray 1	229
Misfeed Bypass Tray	231
Paper Misfeed Message (B)	233
Paper Misfeed Message (Y)	236
Paper Misfeed Message (Z)	237
11. Appendix	239
Moving and Transporting the Printer	239
Moving the Printer in a Short Distance	240
Consumables	241
Print Cartridge	241
Waste Toner Bottle	242
Intermediate Transfer Unit	242
Maintenance Kit	243
Specifications	244
Mainframe	244
Options	247
Paper Feed Unit TK1010	247
Hard Disk Drive Option Type C320	247
Memory Unit Type G 256 MB	248
Memory Unit Type I 512 MB	248
Gigabit Ethernet Board Type A	248
IEEE 802.11a/g Interface Unit Type M (mainly Europe and Asia)	249
IEEE 802.11a/g Interface Unit Type L (mainly North America)	249
IEEE 1284 Interface Board Type A	249
Trademarks	251