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Troubleshooting print-quality issues

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17 Troubleshooting print-quality issues ● General advice ● Horizontal lines across the image (banding) ● Whole image is blurry or grainy ● Paper is not flat ● Print is scuffed or scratched ● Ink marks on the paper ● Black horizontal lines on yellow background ● Black ink comes off when you touch the print ● Edges of objects are stepped or not sharp ● Edges of objects are darker than expected ● Horizontal lines at the end of a cut sheet print ● Vertical lines of different colors ● White spots on the print ● Colors are inaccurate ● Colors are fading ● Image is incomplete (clipped at the bottom) ● Image is clipped ● Some objects are missing from the printed image ● Lines are too thick, too thin or missing ● Lines appear stepped or jagged ● Lines print double or in the wrong colors ● Lines are discontinuous ● Lines are blurred ● Line lengths are inaccurate 206 Chapter 17 Troubleshooting print-quality issues ENWW

Section	Page
Introduction	9
Welcome to your printer	10
Printer models	10
Safety precautions	11
General safety guidelines	11
Electrical shock hazard	11
Fire hazard	12
Mechanical hazard	12
Heavy paper hazard	13
Ink handling	13
Warnings and cautions	13
Warning labels	13
Main components	15
Front view	15
Rear view	16
Turn the printer on and off	16
Front panel	18
Dim mode	20
Sleep mode	20
Change the language of the front-panel display	20
Change system options	21
HP Utility	21
HP Print Preview	22
Embedded Web Server	23
Demo prints	23
Configure your printer	24
Connect the printer to your network	24
Modify network configuration	24
Install your printer under Windows	25
Uninstall the printer software under Windows	25
Install Airprint on Mac OS X	25
Connect a computer to the printer by network (Mac OS X)	29
Set up printer services	30
Verify printer connection to HP	30
Enable email printing with HP ePrint	30
HP ePrint job policies	31
Configure ePrint connectivity service	31
Configure firmware updates	31
LDAP Configure the email address book	32
Email lookup	32
Information needed before starting	32
Address book setup	32
Configure a network folder	33
Configure the email server	41
Control access to the printer	41
Manage printer security with HP Connected	41
Embedded Web Server security settings	41
LDAP – sign-in server	41
Information needed before starting	41
Setup	42
Windows sign-in configuration	43
Information needed before starting	43
Setup	43
Front-panel security settings	43
Require account ID	44
Drivers	44
Specific Windows drivers	44
HP Universal Print Driver configuration tool	44
Set Windows driver preferences	45
Change the graphic language setting	45
Mobile printing	46
Accessibility	46
Front panel	46
Embedded Web Server	46
Other sources of information	47
Paper handling	48
General advice	49
Load a roll onto the spindle	49
Load a roll into the printer	52
Unload a roll	55
Quick procedure with paper on the roll	55
Front panel procedure with paper on the roll	56
Load a single sheet	56
The stacker	59
Manual printing with the stacker open	60
The basket	61
View information about the paper	62
Paper presets	62
To install a downloaded paper preset	62
Printing paper info	63
Move the paper	63
Maintain paper	64
Change the drying time	64
Turn the automatic cutter on and off	64
Clean cut	65
Working with two rolls (T2600dr only)	66
Advantages of a multiroll printer	67
How the printer allocates jobs to paper rolls	67
Networking	69
Introduction	70
Control network protocols	70
Enable or disable network protocols	70
Front-panel menu items	70
Link configuration methods	73
Troubleshooting	74
IO Configuration card	74
Reset network parameters	74
Link troubleshooting	75
Communication failures between computer and printer	76
Cannot access the Embedded Web Server	76
Cannot access the printer from the HP Utility	76
Print jobs take too much time to be received by the printer	77
Wi-Fi accessory	77
Wireless functionality	77
Wireless data speed	77
Install the accessory	78
Step 1 - Update the print firmware	78
Step 2 - Power off and connect the accessory	78
Connect your printer to a Wi-Fi Network	80
Use the front panel	80
Connect to a Wi-Fi network with the WPS	80
Connect to a Wi-Fi network with the printer’s Embedded Web Server	81
Print with Wi-Fi Direct	81
Step 1 - Setup the printer	81
Step 2a - (Android 4.4 onwards) setup a laptop, phone, or tablet	81
Step 2b - (Windows 8.1 onwards) use Windows Wi-Fi Direct to print	82
Turn Wi-Fi direct on/off	82
Method one: Use the control panel to turn on/off Wi-Fi (but not Wi-Fi Direct)	82
Method two: Use the HP Embedded Web Server to turn on/off Wi-Fi (but not Wi-Fi Direct)	82
More information	82
Printing	83
Introduction	84
Print from a USB flash drive	84
Print from the network folder	85
Print from My Home Folder	86
Print from a computer using a printer driver	88
Advanced print settings	88
Select print quality	88
Select paper size	89
Custom paper sizes	90
Select margin options	91
Print on loaded paper	92
Rescale a print	92
Change the treatment of overlapping lines	92
Preview a print	93
Print a draft	93
High-quality printing	93
If you have a high-resolution image	94
Print in gray shades	94
Print with crop lines	94
Use paper economically	94
Nest jobs to save roll paper	95
When does the printer try to nest pages?	95
What pages can be nested?	95
Which pages qualify for nesting?	95
How to turn nesting on and off	96
How long does the printer wait for another file?	96
Use ink economically	97
Protect a paper type	97
Unattended printing/overnight printing	97
Mobile printing	99
Introduction	100
Print from Android	100
Print from Chrome OS	100
Print, scan, and share from the HP Smart App	101
Print by email (HP ePrint)	101
Mobile specifications	101
Job queue management	103
Job queue in the front panel	104
Print & Copy queue	104
Scan queue	105
Scan queue actions	106
Print	106
Delete	106
Cancel Sending	106
Send to	106
Scan queue options	106
Delete all scan jobs	106
Manage remotely	106
Job queue actions	106
Pause the job queue	106
Reprint	107
Print next	107
Select when to print a job	107
See job details	107
Roll policies	107
Solve paper mismatch	108
Job queue options	108
Default printing preferences	108
Job deletion	108
Print job queue in the Embedded Web Server or HP DesignJet Utility	109
Printing	109
Job queue page	109
Prioritize a job in the queue	110
Delete a job from the queue	110
Reprint a job in the queue	110
Job status messages	110
Reactivate a job on hold	111
Scan queue in the Embedded Web Server or HP DesignJet Utility	111
Manage scanned files remotely	112
Scanning and copying	113
Quicksets	114
Factory quicksets	114
User quicksets	114
Scanning	114
Copying	120
Scanner preferences	125
Scanner troubleshooting	126
Random vertical lines	126
Wrinkles or folds	126
Line discontinuities	127
Small color differences between adjacent CIS modules	128
Variable line thickness or missing lines	129
Inaccurately reproduced colors	130
Color fringing	131
Vibration	131
Incorrect paper advance, skew during scanning, or horizontal wrinkles	132
Vertical black band 20 cm wide	133
Scanner damages some originals	133
Object replication (ghosting)	134
Clipping or incorrect scale factor when down-scaling in copies and prints	134
Incorrect edge detection, mostly when scanning tracing paper	135
Copied or scanned image is very skewed	135
Cannot access the network folder	136
Scanning to file is slow	136
Scanner diagnostic plot	136
Prepare the printer and the paper to print the diagnostic sheet	136
Visual check for errors while printing the diagnostic sheet	137
Scan or copy the diagnostic plot	137
Scan from the HP Smart App	138
Color management	139
Introduction	140
How colors are represented	140
A summary of the color management process	140
Color calibration	140
Color management from printer drivers	142
Color management options	142
Color options	142
Printing in color	142
Printing in grayscale	143
Printing in pure black and white	143
HP Professional PANTONE Emulation	143
Default color spaces	143
Default RGB source profiles	144
Default CMYK source profiles	144
Color management from the front panel	144
Practical printing examples	145
Print a draft for revision with the correct scale	146
Using Adobe Acrobat	146
Print a PDF multipage job from Adobe Acrobat Reader or Adobe Acrobat Pro	147
Using a raster driver	147
Using a PostScript driver	147
Using a PDF driver	148
Print a document with the correct colors	149
Using Adobe Acrobat Reader	149
Using Adobe Acrobat Pro	151
Using Adobe Photoshop	155
Print a project	156
Using Autodesk AutoCAD	156
Using clip contents by margins	159
Print a presentation	159
Using Autodesk AutoCAD	159
Using Adobe Photoshop	162
Print and scale from Microsoft Office	163
Using Microsoft PowerPoint	163
Using Microsoft Project	164
Using Microsoft Excel	166
Retrieving printer usage information	167
Get printer accounting information	167
Check usage statistics	167
Check usage from the front panel	167
Check usage from the Embedded Web Server	169
Check usage statistics for a job	170
Check cost assignment	171
Handling ink cartridges and printhead	173
About the ink cartridges	174
Check the ink cartridges status	174
HP Utility procedure	174
Remove an ink cartridge	174
Insert an ink cartridge	175
About the printhead	177
Check the printhead status	177
Remove the printhead	178
Insert the printhead	181
Storage of anonymous usage information	185
Safe mode	185
Printer maintenance	186
Check printer status	187
Clean the exterior of the printer	187
Maintain the ink cartridges	187
Move or store the printer	187
Update the firmware	188
Automatic firmware updates	188
Manual firmware updates	188
Update the software	189
Printer maintenance kits	189
Secure File Erase	189
Disk Wipe	190
Scanner maintenance	191
Clean the scanner’s glass plate	191
Calibrate the scanner	193
Supplies and accessories	195
How to order supplies and accessories	196
Order ink supplies	196
Order paper	196
Order accessories	199
Introduction to the accessories	200
PostScript Upgrade	200
Spindle	200
3-in Spindle Adaptor Kit	200
Troubleshooting paper issues	201
Paper cannot be loaded successfully	202
Unsuccessful roll load issues	202
Unsuccessful sheet load	202
Paper loading error messages	203
Paper type is not in the driver	203
Glossy paper	203
Matte paper	203
General-purpose paper	203
Black ink is easily removed when touched	204
After printing, the paper has wrinkles or there is too much ink	204
Printer printed on the wrong paper type	204
Automatic cut not available	204
On hold for paper	204
Which criteria are used to decide on which roll a job will be printed?	205
When is a job put on hold for paper?	205
If I load a new roll of paper, will jobs that were on hold for paper be automatically printed?	205
I don’t like jobs being put on hold for paper. Can I prevent it?	205
My job is exactly as wide as the roll of paper that is loaded on the printer, but is put on hold for ...	205
The paper has jammed in the print platen	205
The paper has jammed in the stacker	210
The printer reports unexpectedly that the stacker is full	210
A strip stays on the output tray and generates jams	210
Printer displays out of paper when paper is available	210
Prints do not fall neatly into the basket	211
Sheet stays in the printer when the print has been completed	211
Paper is cut when the print has been completed	211
Cutter does not cut well	211
Roll is loose on the spindle	211
Recalibrate the paper advance	211
Recalibrating the paper advance procedure	212
Return to default calibration	213
Troubleshooting print-quality issues	214
General advice	216
Horizontal lines across the image (banding)	216
Whole image is blurry or grainy	217
Paper is not flat	218
Print is scuffed or scratched	218
Ink marks on the paper	218
Horizontal smears on the front of coated paper	219
Ink marks on the back of the paper	219
Black horizontal lines on yellow background	219
Black ink comes off when you touch the print	219
Edges of objects are stepped or not sharp	220
Edges of objects are darker than expected	220
Horizontal lines at the end of a cut sheet print	220
Vertical lines of different colors	220
White spots on the print	221
Colors are inaccurate	221
Colors are fading	222
Image is incomplete (clipped at the bottom)	222
Image is clipped	222
Some objects are missing from the printed image	223
Lines are too thick, too thin or missing	224
Lines appear stepped or jagged	224
Lines print double or in the wrong colors	225
Lines are discontinuous	225
Lines are blurred	226
Line lengths are inaccurate	226
Image Diagnostics Print	227
Corrective action	229
If you still have a problem	230
Troubleshooting ink cartridge and printhead issues	231
Cannot insert an ink cartridge	232
Ink cartridge status messages	232
Cannot insert the printhead	232
The front-panel display recommends reseating or replacing the printhead	232
Clean the printhead	233
Align the printhead	233
Printhead status messages	234
Troubleshooting general printer issues	235
Printer does not print	236
Front panel fails to initialize	236
Printer seems slow	237
Communication failures between computer and printer	237
Cannot access the Embedded Web Server	237
Cannot connect to the Internet	238
Web Services issues	238
Automatic file system check	238
Alerts	238
Front-panel error messages	240
System error log	240
HP Customer Care	241
Introduction	242
HP Professional Services	242
HP Support Center	242
Download printer software	242
HP Care Packs and Warranty Extensions	242
Customer Self Repair	243
Contact HP Support	243
Telephone number	244
Printer specifications	245
Functional specifications	246
Mobile printing specifications	248
Physical specifications	248
Memory specifications	248
Power specifications	249
Environmental specifications	249
Acoustic specifications	249
Glossary	250