HP Officejet Pro L7400 User Guide - Page 64

Calibrate the linefeed, Clean the printheads, Clean the printhead contacts manually

Get HP Officejet Pro L7400 - All-in-One Printer PDF manuals and user guides View all HP Officejet Pro L7400 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 64 highlights

Chapter 8 Calibrate the linefeed • Control panel: Press the Setup button, select Tools, select Calibrate Linefeed, and then press OK. • Toolbox (Windows): Click the Services tab, and then click Calibrate Linefeed and follow the onscreen instructions. • HP Printer Utility (Mac OS): Click Calibrate Linefeed from the Information and Support panel. Clean the printheads NOTE: Cleaning uses ink, so clean the printheads only when necessary. The cleaning process takes up to 3.5 minutes. Some noise might be generated in the process. • Control panel: Press the Setup button, select Tools, and then select Clean Printhead. • Toolbox (Windows): Click the Services tab, and then click Clean Printheads and follow the onscreen instructions. • HP Printer Utility (Mac OS): Click Clean from the Information and Support panel. Clean the printhead contacts manually After the printheads are installed, you might get a control panel message telling you the device will not print. If you receive this message, you might need to clean the electrical contacts on the printheads and in the device. CAUTION: Clean the electrical contacts only after you have attempted to clean the printheads. Electrical contacts contain sensitive electronic components that can be damaged easily. For more information, see Clean the printheads. To clean the printhead contacts manually 1. Open the top cover. 2. If the carriage does not move to the left automatically, press and hold the OK button for five seconds. Wait for the carriage to stop moving, and then unplug the power cord from the printer. 3. Lift the printhead latch. 60 Maintain and troubleshoot

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
Calibrate the linefeed
•
Control panel:
Press the
Setup
button, select
Tools
, select
Calibrate Linefeed
,
and then press
OK
.
•
Toolbox (Windows):
Click the
Services
tab, and then click
Calibrate Linefeed
and follow the onscreen instructions.
•
HP Printer Utility (Mac OS):
Click
Calibrate Linefeed
from the
Information and
Support
panel.
Clean the printheads
NOTE:
Cleaning uses ink, so clean the printheads only when necessary.
The cleaning process takes up to 3.5 minutes. Some noise might be generated in
the process.
•
Control panel:
Press the
Setup
button, select
Tools
, and then select
Clean
Printhead
.
•
Toolbox (Windows):
Click the
Services
tab, and then click
Clean Printheads
and follow the onscreen instructions.
•
HP Printer Utility (Mac OS):
Click
Clean
from the
Information and Support
panel.
Clean the printhead contacts manually
After the printheads are installed, you might get a control panel message telling you
the device will not print. If you receive this message, you might need to clean the
electrical contacts on the printheads and in the device.
CAUTION:
Clean the electrical contacts only after you have attempted to clean
the printheads. Electrical contacts contain sensitive electronic components that can
be damaged easily. For more information, see
Clean
the
printheads
.
To clean the printhead contacts manually
1.
Open the top cover.
2.
If the carriage does not move to the left automatically, press and hold the
OK
button for five seconds. Wait for the carriage to stop moving, and then unplug the
power cord from the printer.
3.
Lift the printhead latch.
Chapter 8
60
Maintain and troubleshoot