HP LaserJet MFP M139-M142 User Guide - Page 6

Appendix A, Printer specifications, Service and support, UK, Ireland, and Malta

Page 6 highlights

Improve print quality ...49 Update the printer firmware...49 Print from a different software program...50 Check the paper-type setting for the print job ...50 Check toner-cartridge status...50 Cartridge cleaning ...51 Print a cleaning page ...51 Visually inspect the toner cartridge...51 Check paper and the printing environment ...52 Adjust Print Density...52 Troubleshoot print quality problems ...53 Improve copy and scan image quality...58 Check the scanner glass for dirt and smudges ...58 Check the paper settings ...58 Optimize for text or pictures...59 Edge-to-edge copying ...59 Solve wireless network problems...59 Wireless connectivity checklist...59 The printer does not print after the wireless configuration completes 60 The printer does not print, and the computer has a third-party firewall installed 60 The wireless connection does not work after moving the wireless router or printer 60 Cannot connect more computers to the wireless printer ...61 The wireless printer loses communication when connected to a VPN 61 The network does not appear in the wireless networks list 61 The wireless network is not functioning...61 Perform a wireless network diagnostic test ...62 Reduce interference on a wireless network...62 HP support ...63 Contact HP...63 Register printer ...64 Additional warranty options ...64 Additional supplies and toner information...64 Appendix A Printer specifications ...65 Technical specifications ...65 System requirements ...65 Printer dimensions...65 Power consumption, electrical specifications, and acoustic emissions 66 Operating environment range...66 Warning icons...66 Laser Warning...67 Appendix B Service and support...68 HP limited warranty statement...68 Country Specific Terms ...69 UK, Ireland, and Malta...71 v

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Improve print quality
..........................................................................................................................................................................
49
Update the printer firmware
.....................................................................................................................................................
49
Print from a different software program
................................................................................................................................
50
Check the paper-type setting for the print job
......................................................................................................................
50
Check toner-cartridge status
....................................................................................................................................................
50
Cartridge cleaning
......................................................................................................................................................................
51
Print a cleaning page
.................................................................................................................................................................
51
Visually inspect the toner cartridge
.........................................................................................................................................
51
Check paper and the printing environment
...........................................................................................................................
52
Adjust Print Density
....................................................................................................................................................................
52
Troubleshoot print quality problems
...............................................................................................................................................
53
Improve copy and scan image quality
..............................................................................................................................................
58
Check the scanner glass for dirt and smudges
.....................................................................................................................
58
Check the paper settings
..........................................................................................................................................................
58
Optimize for text or pictures
.....................................................................................................................................................
59
Edge-to-edge copying
...............................................................................................................................................................
59
Solve wireless network problems
.....................................................................................................................................................
59
Wireless connectivity checklist
.................................................................................................................................................
59
The printer does not print after the wireless configuration completes
.............................................................................
60
The printer does not print, and the computer has a third-party firewall installed
..........................................................
60
The wireless connection does not work after moving the wireless router or printer
.....................................................
60
Cannot connect more computers to the wireless printer
....................................................................................................
61
The wireless printer loses communication when connected to a VPN
..............................................................................
61
The network does not appear in the wireless networks list
...............................................................................................
61
The wireless network is not functioning
.................................................................................................................................
61
Perform a wireless network diagnostic test
..........................................................................................................................
62
Reduce interference on a wireless network
...........................................................................................................................
62
HP support
...........................................................................................................................................................................................
63
Contact HP
...................................................................................................................................................................................
63
Register printer
...........................................................................................................................................................................
64
Additional warranty options
.....................................................................................................................................................
64
Additional supplies and toner information
.............................................................................................................................
64
Appendix A
Printer specifications
.............................................................................................................................................................
65
Technical specifications
......................................................................................................................................................................
65
System requirements
.........................................................................................................................................................................
65
Printer dimensions
..............................................................................................................................................................................
65
Power consumption, electrical specifications, and acoustic emissions
.....................................................................................
66
Operating environment range
...........................................................................................................................................................
66
Warning icons
.......................................................................................................................................................................................
66
Laser Warning
......................................................................................................................................................................................
67
Appendix B
Service and support
...............................................................................................................................................................
68
HP limited warranty statement
.........................................................................................................................................................
68
Country Specific Terms
..............................................................................................................................................................
69
UK, Ireland, and Malta
................................................................................................................................................................
71
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