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HP 8550dn HP Color LaserJet 8550, 8550N, 8550DN, 8550GN, 8550MFP Printer - Use - Page 187

TONER LOW REPLACE, <Color&gt, TONER OUT REPLACE <Color&gt, Missing colors, continued

UPC - 088698946428

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Problem (Missing colors, continued) Print is black instead of color Inconsistent colors after replacing the toner cartridges Cause and Solution You might be operating the printer in excessively humid conditions. Make sure the printer is operating within the environmental specifications listed in appendix B. A new toner cartridge was installed without removing all of the toner packaging. Remove the toner cartridge. Remove all packaging, verify that the orange tab has been pulled and the seal has been removed. Reinstall the toner cartridge. The printer might not be recognizing that the toner levels are low. Open the front door, and remove and reinstall each toner cartridge. Close the front door. Replace the toner cartridges if TONER LOW REPLACE or TONER OUT REPLACE appears on the printer control panel display. The color mode is not selected in your application or printer driver. Select the color mode instead of the grayscale or black and white mode in your application or printer driver. For more information, see the online help for the application or printer driver. The correct printer driver is not selected in your application. Select the printer driver for this printer. For more information, see the online help for the printer driver. The printer is not working correctly. Verify the printer operation by printing a configuration page from the printer control panel. If no color appears on the configuration page, contact a local authorized HP dealer for service. You are not using the correct toner cartridges. Use only the HP toner cartridges that were designed for this printer. HP has designed the printer, toner cartridges, and toner formula to work together to give you optimal image quality from the printer. For part number information, see "Accessories, Options, and Related Products" later in this chapter. A new toner cartridge was installed without removing all of the toner packaging. Remove the toner cartridge. Remove all packaging, verify that the orange tab has been pulled and the seal has been removed. Reinstall the toner cartridge. 186 8 Solving Printer Problems EN

Section	Page
HP Customer Care	4
Online Services:	4
Obtaining software utilities and electronic information:	5
HP Service Agreements:	6
HP FIRST:	6
Customer support options worldwide	8
HP Customer Care Centers	11
Asia Pacific	11
North & Latin America	11
Europe, Middle East, and Africa	11
Contents	14
1 The HP Color LaserJet 8550 Printer	18
Features	18
Printer Information	21
Configurations	21
Locating the Printer's Parts	23
Optional Paper Handling Accessories and Status Lights	25
2 Using the Printer Control Panel	28
Overview	28
Printer Control Panel Keys and Indicator Lights	29
When to Use the Printer Control Panel Menus	31
Using the Printer Control Panel in Shared Environments	31
Resetting the Printer	32
Factory Defaults	33
Printing Menu Maps	38
Changing Settings in the Printer Control Panel	39
Configuring Menu Selections	39
Auto Continue	40
Tray 1 Auto	40
Configuring Media Type and Size	41
Selecting an Output Bin	43
Setting Media Type and Size Overrides	44
Selecting the A4 Override	45
Selecting Toner Low Response	46
Setting the Power Save Mode	47
Selecting Parallel Advanced Function	47
Selecting the Default Printer Personality	48
Setting the I/O Timeout	49
Locking the Printer Control Panel	50
Selecting the Display Language	51
Printing Internal Pages	52
Interpreting the Configuration Page	53
Duplex Registration	55
Managing Memory	57
Resource Saving	58
Configuring the Printer for the Network	58
3 Common Printing Tasks	60
Selecting Media	60
Supported Media Weights and Sizes for Input Trays	61
Supported Media Weights and Sizes for the Optional Multi-bin Mailbox	64
Supported Media Weights and Sizes for the Optional Duplexer	66
Supported Media Weights and Sizes for the Optional 3000-sheet Stapler/Stacker and Optional 3000-s...	67
Preprinted Forms and Letterhead	69
Recycled Media	70
Envelopes	70
Transparencies	71
Heavy Paper Stock	71
Labels	72
Colored Media	73
Media to Avoid	73
Controlling Your Print Job	74
Changing Page Orientation	74
Printing from Tray 1	75
Printing Envelopes from Tray 1	76
Printing Tips for Tray 1	78
Orienting Media	79
Printing from Trays 2 (some printer models only) and 3	81
Printing Tips for Trays 2 and 3	84
Printing from Tray 4 (some printer models only)	85
Printing Tips for Tray 4 (some printer models only)	87
4 Advanced Printing Features	88
Overview	88
Using the HP TonerGauge	89
Printing by Type and Size of Paper	90
Benefits of Printing by Type and Size of Paper	90
Different First Page	92
Printing Multiple Pages on One Sheet of Paper	93
Creating and Using Quick Sets	94
Quick Copying a Job	96
Printing Additional Copies of a Quick Copy Job	96
Deleting a Stored Quick Copy Job	97
Proofing and Holding a Job	98
Printing the Remaining Copies of a Held Job	98
Deleting a Held Job	98
Printing a Private Job	100
Specifying a Private Job	100
Releasing a Private Job	100
Deleting a Private Job	101
Storing a Print Job	102
Printing a Stored Job	102
Deleting a Stored Job	102
Variable Data Printing	103
Booklet Printing	104
Print on Backside of Heavy Media	105
HP JetSend Communications Technology	106
How the JetSend Communications Technology Works	106
Managing Fonts and Forms on Disk	107
HP LaserJet Resource Manager (Windows)	107
HP LaserJet Utility (Macintosh)	108
5 Using Color	110
Controlling Color Output with Printer Drivers	110
Using Color	111
Manual Mode	112
ICC/CMS	113
Black and White	113
Automatic PANTONE® Matching	114
CMYK Ink Set Emulation	114
Adjusting the Print Color and Quality Settings	115
Selecting Colors	116
PANTONE Colors	116
Color Swatch	116
Resolution Considerations for Graphics, Images, and Photographs	117
Using Digital Cameras	117
Using Scanners	118
Adjusting the Color Balance	119
6 Maintaining the Printer	124
Making Room for Printer Maintenance	124
Replacing Printer Consumables	125
Locating Printer Consumables	125
Frequency for Replacing Printer Consumables	126
Recycling Consumables	128
Resetting the HP TonerGauge	128
7 Printer Control Panel Messages	130
Printer Messages	130
Using the Printer Online Help System	130
8 Solving Printer Problems	162
Performing Basic Troubleshooting Steps	162
Working with Toner	163
Media Jam Locations	164
Media Handling Problems	166
Printer Response Problems	174
Printer Control Panel and Configuration Problems	180
Application Problems	182
Incorrect Printer Output	184
Color Printing Problems	186
Print Quality Problems	188
Cleaning the Density Sensor	198
Cleaning the Transfer Drum	199
Cleaning the Post Charger	203
Cleaning the Transfer Charger	204
Accessories, Options, and Related Products	205
A DIMM Installation	208
Supported DIMMs	208
Installing DIMMs	208
B Specifications	212
Electrical Specifications	212
Operating Environmental Specifications	213
Environmental Product Stewardship Program	214
Protecting the Environment	214
Regulatory Statements	218
FCC Regulations	218
Canadian DOC Regulations	218
Declaration of Conformity	219
VCCI Statement (Japan)	225
Korean EMI Statement	225
Safety Information	226
Laser Safety	226
Product Information Sheet	226
Laser Statement for Finland	227
C Warranty Information	230
Hewlett-Packard Limited Warranty Statement	230

Match case Limit results 1 per page

186

8 Solving Printer Problems

(Missing colors,

continued)

You might be operating the printer in excessively humid

conditions. Make sure the printer is operating within the

environmental specifications listed in appendix

A new toner cartridge was installed without removing all

of the toner packaging. Remove the toner cartridge.

Remove all packaging, verify that the orange tab has

been pulled and the seal has been removed. Reinstall

the toner cartridge.

The printer might not be recognizing that the toner

levels are low. Open the front door, and remove and

reinstall each toner cartridge. Close the front door.

Replace the toner cartridges if

TONER LOW REPLACE

<Color>

TONER OUT REPLACE <Color>

appears on

the printer control panel display.

Print is black instead of

color

The color mode is not selected in your application or

printer driver. Select the color mode instead of the

grayscale or black and white mode in your application

or printer driver. For more information, see the online

help for the application or printer driver.

The correct printer driver is not selected in your

application. Select the printer driver for this printer. For

more information, see the online help for the printer

driver.

The printer is not working correctly. Verify the printer

operation by printing a configuration page from the

printer control panel. If no color appears on the

configuration page, contact a local authorized HP

dealer for service.

Inconsistent colors after

replacing the toner

cartridges

You are not using the correct toner cartridges. Use only

the HP toner cartridges that were designed for this

printer. HP has designed the printer, toner cartridges,

and toner formula to work together to give you optimal

image quality from the printer. For part number

information, see “

Accessories, Options, and Related

Products

” later in this chapter.

A new toner cartridge was installed without removing all

of the toner packaging. Remove the toner cartridge.

Remove all packaging, verify that the orange tab has

been pulled and the seal has been removed. Reinstall

the toner cartridge.

Problem

Cause and Solution