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HP 2550L HP Color LaserJet 2550 series - User Guide - Page 115

Solving print-quality problems, Print-quality checklist, Solving issues with all printed documents

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Solving print-quality problems If your document is printing but the quality is not what you expected, start by using the printquality checklist. Print-quality checklist General print-quality problems can be solved by using the following checklist: 1. Check the printer driver to make sure you are using the best available print-quality option, or return to the default settings. See Changing the print quality. 2. Make sure that the paper or print media that you are using meets specifications. See Print-media specifications. Generally, smoother paper provides better results, although coated and photo papers are not supported. 3. If you are using a special print media such as labels, transparencies, or letterhead, ensure that you have printed by Type. See Controlling print jobs. 4. Print a Configuration page and Supplies Status page at the printer by pressing (GO) and (CANCEL JOB) simultaneously. ● Check the Supplies Status page to see if any supplies are low or empty. No information is provided for non-HP print cartridges. ● If the pages do not print correctly, the problem is with the hardware. Contact HP Customer Care. See HP customer care or the flyer that came in the printer box. 5. Print a Demo page from the HP Toolbox. If the page prints, the problem is with the printer driver. Try printing from the other printer driver. For example, if you are using the PCL 6 printer driver, print from the PS printer driver. 6. Try printing from a different program. If the page prints correctly, the problem is with the program from which you were printing. 7. Restart the computer and the printer and try printing again. If the problem is not resolved, choose one of these options: ● If the problem is affecting all printed pages, see Solving issues with all printed documents. ● If the problem is affecting only pages printed in color, see Solving issues with color documents. Solving issues with all printed documents The following examples depict letter-size paper that has passed through the printer shortedge first. These examples illustrate problems that would affect all pages that you print, whether you print in color or in black only. The topics that follow list the typical cause and solution for each of these examples. ENWW Solving print-quality problems 105

Section	Page
Printer basics	11
Quick access to printer information	12
User guide links	12
Where to look for more information	12
Printer configurations	14
HP color LaserJet 2550L	14
HP color LaserJet 2550Ln	14
HP color LaserJet 2550n	15
Printer features	16
Printer parts	19
Interface ports	19
Software	21
Software and supported operating systems	21
Software tips	22
Software for Windows	22
Software for Macintosh	24
Uninstalling the printing software	24
Print-media specifications	27
General guidelines	27
Paper and print media	27
Printing and storage environment	28
Envelopes	28
Labels	30
Transparencies	30
Supported media weights and sizes	31
Control panel	33
Control panel features	33
Understanding Supplies Status	34
Understanding Printer Status	34
Printing tasks	37
Loading trays	38
Loading tray 1	38
Loading optional tray 2	39
Loading optional tray 3	41
Controlling print jobs	43
About printing by Source versus by Type or Size	43
Maximizing print speed for letter-size paper	45
Gaining access to printer driver settings	45
Features in the printer driver	46
Selecting an output location	51
Printing on special media	52
Printing on envelopes	52
Printing on labels	53
Printing on transparencies	54
Printing on glossy paper	55
Printing on HP LaserJet Tough paper	56
Printing on custom-sized print media or cardstock	56
Printing on letterhead or preprinted forms	57
Printing on both sides (duplexing manually)	58
To duplex manually	58
Canceling a print job	60
Managing the printer	61
Special pages	62
Demo page	62
Configuration page	62
Supplies Status page	63
HP Toolbox	65
Supported operating systems	65
Supported browsers	65
To view the HP Toolbox	66
Status tab	66
Troubleshooting tab	66
Alerts tab	67
Documentation tab	68
Device Settings window	68
Other links	69
Color	71
Using color	72
HP ImageREt 2400	72
Media selection	72
Color options	72
Standard red-green-blue (sRGB)	72
Managing color options	74
Print in Grayscale	74
Automatic versus Manual color adjustment	74
Manual color options	74
Matching colors	76
Maintenance	77
Managing supplies	78
Supplies life	78
Checking and ordering supplies	78
Storing supplies	79
Replacing and recycling supplies	79
HP policy on non-HP supplies	80
HP fraud hotline	80
Cleaning the printer	81
To clean the engine	81
Calibrating the printer	82
To calibrate the printer at the printer	82
To calibrate the printer from the HP Toolbox	82
Problem solving	83
Resolving problems that did not generate messages	84
Troubleshooting checklist	84
Checking the network	86
Solving general printing problems	87
Solving PostScript (PS) errors	92
Solving common Macintosh problems	93
Resolving problems that generated messages	99
Messages for both Windows and Macintosh	99
Messages for Windows only	99
Resolving the control panel messages	101
Supplies Status lights	102
Printer Status lights	105
Secondary light patterns for Printer Status lights	108
Clearing jams	109
Where to look for jams	109
To clear jams from inside the printer	109
To clear jams from input areas	110
To clear jams from output areas	112
Solving print-media problems	114
Solving print-quality problems	115
Print-quality checklist	115
Solving issues with all printed documents	115
Solving issues with color documents	124
Accessories and ordering information	129
Supplies	130
Memory	131
Cable and interface accessories	132
Paper handling accessories	133
Paper and other print media	134
User-replaceable parts	136
Supplementary Documentation	137
Service and support	139
Hewlett-Packard limited warranty statement	139
Print Cartridge Limited Warranty Statement	141
Availability of support and service	142
HP maintenance agreements	142
Onsite service agreements	142
HP Express Exchange (U.S. and Canada only)	143
To use HP Express Exchange	143
Repacking the printer	144
To repack the printer	144
Service information form	146
Specifications	147
Printer specifications	147
Regulatory information	149
Introduction	149
FCC regulations	150
Environmental Product Stewardship program	151
Protecting the environment	151
Ozone production	151
Energy consumption	151
HP LaserJet printing supplies	151
Material safety data sheet	153
Declaration of conformity	154
Country-/region-specific safety statements	155
Laser safety statement	155
Canadian DOC statement	155
Korean EMI statement	155
Finnish laser statement	156
Working with memory	157
Printer memory	158
Installing memory and font DIMMs	159
To install memory and font DIMMs	159
Checking DIMM installation	161
To check DIMM installation	161
Enabling memory	162
To enable memory for Windows	162
To enable memory for Mac OS	162
Enabling the language-font DIMM	163
To enable fonts for Windows	163

Match case Limit results 1 per page

Solving print-quality problems

If your document is printing but the quality is not what you expected, start by using the print-

quality checklist.

Print-quality checklist

General print-quality problems can be solved by using the following checklist:

Check the printer driver to make sure you are using the best available print-quality

option, or return to the default settings. See

Changing

the

quality

Make sure that the paper or print media that you are using meets specifications. See

Print-media

specifications

. Generally, smoother paper provides better results, although

coated and photo papers are not supported.

If you are using a special print media such as labels, transparencies, or letterhead,

ensure that you have printed by Type. See

Controlling

jobs

Print a Configuration page and Supplies Status page at the printer by pressing

(

)

and

(

ANCEL

) simultaneously.

●

Check the Supplies Status page to see if any supplies are low or empty. No

information is provided for non-HP print cartridges.

●

If the pages do not print correctly, the problem is with the hardware. Contact HP

Customer Care. See

customer

care

or the flyer that came in the printer box.

Print a Demo page from the HP Toolbox. If the page prints, the problem is with the

printer driver. Try printing from the other printer driver. For example, if you are using the

PCL 6 printer driver, print from the PS printer driver.

Try printing from a different program. If the page prints correctly, the problem is with the

program from which you were printing.

Restart the computer and the printer and try printing again. If the problem is not

resolved, choose one of these options:

●

If the problem is affecting all printed pages, see

Solving

issues

with

all

printed

documents

●

If the problem is affecting only pages printed in color, see

Solving

issues

with

color

documents

Solving issues with all printed documents

The following examples depict letter-size paper that has passed through the printer short-

edge first. These examples illustrate problems that would affect all pages that you print,

whether you print in color or in black only. The topics that follow list the typical cause and

solution for each of these examples.

ENWW

Solving print-quality problems

105