HP L7400 User Manual download pdf (Page 67)

Replace the printheads

NOTE: To find out which printheads work with your printer, see Supplies.

To replace the printheads

1. Open the top cover.

2. If the carriage does not move to the left automatically, press and hold the OK

button for 5 seconds. Wait for the carriage to stop moving.

3. Lift the printhead latch.

4. Lift the handle of a printhead and use it to pull the printhead out of its slot.

Maintain the printheads

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 119 120

HP Officejet Pro L7400 1
All-in-One series 1
One series 3
Contents 5
1 Get started 10
Understand the device parts 11
Front view 12
Printing supplies area 12
Back view 13
Connection information 14
Install the accessories 15
Chapter 2 16
12 Install the accessories 16
3 Use the device 18
Change device settings 19
Chapter 3 20
16 Use the device 20
Load originals 21
Select print media 22
Load media 27
24 Use the device 28
Configure trays 30
Print borderless 32
Print borderless 29 33
Change print settings 34
Perform duplexing 35
Chapter 4 36
32 Print 36
Cancel a print job 37
Change the copy settings 38
Set the number of copies 39
Set the copy paper size 39
Set the copy paper type 39
Change copy speed or quality 40
Chapter 5 42
Cancel a copy job 43
Scan an original 44
Edit a scanned original 45
Change scan settings 46
Cancel a scan job 46
7 Configure and manage 47
Use device management tools 48
Toolbox (Windows) 49
HP Printer Utility (Mac OS) 50
HP Instant Support 51
Chapter 7 52
48 Configure and manage 52
Direct connection 54
Configure the device (Mac OS) 56
54 Configure and manage 58
8 Maintain and troubleshoot 60
Maintain the printheads 61
Check printhead health 62
Align the printheads 63
Calibrate the linefeed 64
Clean the printheads 64
Chapter 8 66
62 Maintain and troubleshoot 66
Replace the printheads 67
Store printing supplies 68
Clean the device 69
Solve printing problems 70
Blank or partial page printed 72
70 Maintain and troubleshoot 74
Poor quality printouts 75
Meaningless characters print 75
Ink is smearing 76
Solve paper-feed problems 77
74 Maintain and troubleshoot 78
Solve copy problems 79
Copies are blank 80
Size is reduced 80
Copy quality is poor 80
Solve scan problems 81
Scanner did nothing 82
Scan takes too long 82
Text cannot be edited 83
Error messages appear 83
Scanned image quality is poor 83
Scan defects are apparent 84
82 Maintain and troubleshoot 86
Clear jams 87
84 Maintain and troubleshoot 88
Tips for avoiding jams 89
HP supplies and accessories 90
Printheads 91
HP media 91
Support and warranty 92
Obtain electronic support 94
Obtain HP telephone support 94
Support process 95
HP support by phone 95
Phone support period 95
Telephone support numbers 95
Appendix B 96
92 Support and warranty 96
Placing a call 97
Additional warranty options 97
94 Support and warranty 98
Pack the device 101
Device specifications 103
System requirements 104
Environmental specifications 105
Print specifications 105
Copy specifications 105
Scan specifications 105
Electrical specifications 106
Regulatory information 107
FCC statement 108
Notice to users in Korea 108
RoHS notices (China only) 109
LED indicator statement 109
Regulatory model number 109
Declaration of conformity 110
Energy consumption 112
Symbols/Numerics 113
Podręcznik użytkownika 120

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HP L7400 User Manual Page 67

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