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HP Color LaserJet Pro M180-M181 User Guide - Page 126

Resolving print quality problems, Introduction

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Resolving print quality problems ● Introduction ● Troubleshoot print quality problems Introduction The following information provides troubleshooting steps for solving image defect issues, including the following defects: ● Light print ● Gray background or dark print ● Blank pages ● Black pages ● Dark or light bands ● Dark or light streaks ● Missing toner ● Skewed images ● Colors that do not align ● Curled paper Troubleshoot print quality problems Table 9-3 Image defects table quick reference Defect Defect Table 9-4 Light print on page 118 Table 9-5 Gray background or dark print on page 119 Defect Table 9-6 Blank page - No print on page 119 116 Chapter 9 Solve problems ENWW

Section	Page
Printer overview	11
Printer views	12
Printer front view	12
Printer back view	13
LED control-panel view	14
2-line LCD control-panel view	15
Printer specifications	17
Technical specifications	17
Supported operating systems	17
Mobile printing solutions	19
Printer dimensions	20
Power consumption, electrical specifications, and acoustic emissions	21
Operating environmental range	21
Printer hardware setup and software installation	22
Paper trays	23
Introduction	24
Load Tray 1	24
Introduction	24
Tray 1 paper orientation	27
Load and print envelopes	29
Introduction	29
Print envelopes	29
Envelope orientation	29
Load and print labels	30
Introduction	30
Manually feed labels	30
Label orientation	30
Supplies, accessories, and parts	31
Order supplies, accessories, and parts	32
Ordering	32
Supplies and accessories	32
Customer self-repair parts	32
Replace the toner cartridges	34
Introduction	34
Remove and replace the toner cartridges	36
Print	39
Print tasks (Windows)	40
How to print (Windows)	40
Manually print on both sides (Windows)	40
Print multiple pages per sheet (Windows)	41
Select the paper type (Windows)	41
Print tasks (OS X)	43
How to print (OS X)	43
Manually print on both sides (OS X)	43
Print multiple pages per sheet (OS X)	43
Select the paper type (OS X)	44
Mobile printing	45
Introduction	45
Wi-Fi Direct (wireless models only)	45
Enable or disable Wi-Fi Direct	46
Change the printer Wi-Fi Direct name	47
HP ePrint via email	47
HP ePrint software	48
AirPrint	48
Android embedded printing	49
Copy	51
Make a copy	52
Copy on both sides (duplex)	53
Copy on both sides manually	53
Scan	55
Scan by using the HP Scan software (Windows)	56
Scan by using the HP Easy Scan Software (OS X)	57
Fax	59
Set up to send and receive faxes	60
Before starting	60
Step 1: Identify the phone connection type	60
Step 2: Set up the fax	61
Dedicated phone line	61
Shared voice/fax line	62
Shared voice/fax line with an answering machine	63
Step 3: Configure the fax time, date, and header	65
HP Fax Setup Wizard	65
Printer control panel	65
HP Embedded Web Server (EWS) and HP Device Toolbox (Windows)	66
Step 4: Run a fax test	67
Send a fax	68
Fax from the flatbed scanner	68
Fax from the document feeder (document feeder models only)	69
Use speed dials and group-dial entries	69
Send a fax from the software	70
Send a fax from a third-party software program, such as Microsoft Word	70
Manage the printer	71
Change the printer connection type (Windows)	72
Advanced configuration with HP Embedded Web Server (EWS) and HP Device Toolbox (Windows)	73
Configure IP network settings	76
Introduction	76
Printer sharing disclaimer	76
View or change network settings	76
Rename the printer on a network	77
Manually configure IPv4 TCP/IP parameters from the control panel	78
Printer security features	80
Introduction	80
Assign or change the system password using the Embedded Web Server	80
Energy-conservation settings	82
Introduction	82
Print with EconoMode	82
Set the Sleep/Auto Off After Inactivity setting	82
Set the Shut Down After Inactivity delay and configure the printer to use 1 watt or less of power	83
Set the Delay Shut Down setting	85
HP Web Jetadmin	87
Update the firmware	88
Method one: Update the firmware using the control panel (2-line control panels only)	88
Method two: Update the firmware using the Firmware Update Utility	88
Solve problems	91
Customer support	92
Interpret control-panel light patterns (LED control panels only)	93
Restore the factory-set defaults	96
A “Cartridge is low” or “Cartridge is very low” message displays on the printer control panel or EWS	97
Change the “Very Low” settings	97
For printers with fax capability	99
Order supplies	99
Printer does not pick up paper or misfeeds	100
Introduction	100
The product does not pick up paper	100
The product picks up multiple sheets of paper	100
The document feeder jams, skews, or picks up multiple sheets of paper	100
Clear paper jams	102
Introduction	102
Paper jam locations	102
Experiencing frequent or recurring paper jams?	103
Clear paper jams in the document feeder (fw models only)	106
Clear paper jams in Tray 1	109
Clear paper jams in the rear door and the fuser area	110
Clear paper jams in the output bin	112
Improve print quality	114
Introduction	114
Update the printer firmware	115
Print from a different software program	115
Check the paper-type setting for the print job	115
Check the paper type setting on the printer	115
Check the paper type setting (Windows)	115
Check the paper type setting (OS X)	115
Check toner-cartridge status	116
Print a cleaning page	117
Visually inspect the toner cartridge or cartridges	118
Check paper and the printing environment	118
Step one: Use paper that meets HP specifications	118
Step two: Check the environment	118
Step three: Set the individual tray alignment	119
Try a different print driver	120
Check the EconoMode settings	120
Adjust Print Density	121
Calibrate the printer to align the colors	122
Adjust color settings (Windows)	123
Print and interpret the print quality page	124
Resolving print quality problems	126
Introduction	126
Troubleshoot print quality problems	126
Improve copy and scan image quality	134
Introduction	134
Check the scanner glass for dirt and smudges	134
Eliminate lines or streaks when using the document feeder	135
Check the paper settings	135
Check the image adjustment settings	136
Optimize for text or pictures	138
Check the scanner resolution and color settings on the computer	139
Resolution and color guidelines	139
Color	140
Edge-to-edge copying	140
Clean the pickup rollers and separation pad in the document feeder (fw models only)	141
Improve fax image quality	142
Introduction	142
Check the scanner glass for dirt and smudges	142
Check the send-fax resolution settings	142
Check the error-correction settings	143
Check the fit-to-page setting	143
Send to a different fax machine	143
Check the sender's fax machine	143
Solve wired network problems	144
Introduction	144
Poor physical connection	144
The computer is unable to communicate with the printer	144
The printer is using incorrect link and duplex settings for the network	145
New software programs might be causing compatibility problems	145
The computer or workstation might be set up incorrectly	145
The printer is disabled, or other network settings are incorrect	145
Solve wireless network problems (wireless models only)	146
Introduction	146
Wireless connectivity checklist	146
The printer does not print after the wireless configuration completes	147
The printer does not print, and the computer has a third-party firewall installed	147
The wireless connection does not work after moving the wireless router or printer	147
Cannot connect more computers to the wireless printer	147
The wireless printer loses communication when connected to a VPN	148
The network does not appear in the wireless networks list	148
The wireless network is not functioning	148
Perform a wireless network diagnostic test	148
Reduce interference on a wireless network	149
Solve fax problems	150
Introduction	150
Fax troubleshooting checklist	150
Solve general fax problems	151
Faxes are sending slowly	151
Fax quality is poor	152
Fax cuts off or prints on two pages	152