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Print-quality issues 4. If the problem remains, try cleaning the printhead drop detector. The printer normally notifies you when this is necessary, but it may be worth trying even if the printer has not suggested it. See Clean the printhead drop detector on page 165. 5. If the problem still remains, replace any persistently faulty printheads (see Handling ink cartridges and printheads on page 112), or contact HP Support (see Contact HP Support on page 182). If you still have a problem If you still experience print-quality problems after applying the advice in this chapter, here are some further things that you can do: ● Try using a higher print-quality option. See Printing on page 49. ● Check the driver you are using to print with. If it is a non-HP driver, consult the driver vendor about the problem. You could also try using the correct HP driver, if feasible. The latest HP drivers can be downloaded from http://www.hp.com/go/T770/drivers/ or http://www.hp.com/go/ T1200/drivers/. ● If you are using a non-HP RIP, its settings may be incorrect. See the documentation that came with the RIP. ● Check that your printer's firmware is up to date. See Update the firmware on page 125. ● Check that you have the right settings in your software application. 162 Chapter 16 Troubleshooting print-quality issues ENWW

Section	Page
Introduction	9
Safety precautions	10
HP Start-Up Kit	10
Using this guide	10
Introduction	10
Use and maintenance	10
Troubleshooting	11
Accessories, support and specifications	11
Glossary	11
Index	11
Warnings and Cautions	11
Printer models	12
The printer's main features	12
The printer's main components	13
Front view	13
Rear view	14
Communication ports	15
The wall spacers	15
The front panel	16
Printer software	17
The printer's internal prints	18
Installing the software	19
Choose which connection method to use	20
Connect to a network (Windows)	20
Connect directly to a computer (Windows)	20
Printer sharing considerations	21
Uninstall the printer software (Windows)	21
Connect to a network (Mac OS)	22
Bonjour/Rendezvous connection	22
TCP/IP connection	24
Connect directly to a computer (Mac OS)	25
Sharing the printer	26
Uninstall the printer software (Mac OS)	26
Setting up the printer	28
Introduction	29
Paper suitability options (T1200 series only)	29
Paper mismatch action	29
Roll switching options	29
Turn nesting on and off (T1200 series only)	30
Turn usage information on and off	31
Turn alerts on and off	31
Control access to the printer	32
Require account ID (T1200 series only)	32
Set Windows driver preferences	32
Personalizing the printer	33
Turn the printer on and off	34
Change the language of the front-panel display	35
Access the HP Utility	35
Access the Embedded Web Server	35
Change the language of the HP Utility	36
Change the language of the Embedded Web Server	36
Change the sleep mode setting	36
Turn the buzzer on and off	36
Change the front-panel display contrast	37
Change the units of measurement	37
Configure network settings	37
Change the graphic language setting	38
Paper handling	39
General advice	40
Load a roll onto the spindle	41
Load a roll into the printer	42
Unload a roll	46
Quick procedure with paper on the roll (T770 series only)	46
Quick procedure with paper on the roll (T1200 series only)	46
Paper menu procedure with paper on the roll	46
Roll out of paper procedure	47
Load a single sheet	47
Unload a single sheet	49
View information about the paper	50
Paper presets	51
Printing paper info	51
Move the paper	51
Maintain paper	52
Change the drying time	52
Turn the automatic cutter on and off	53
Feed and cut the paper	53
Working with two rolls (T1200 series only)	54
The uses of a multiroll printer	55
How the printer allocates jobs to paper rolls	55
Printing	57
Create a print job	58
Using the Embedded Web Server to print files (T1200 series only)	58
Select print quality	59
Select paper size	59
Custom paper sizes	60
Select margins options	60
Print with shortcuts	61
Print on loaded paper	62
Rescale a print	63
Change the treatment of overlapping lines	63
Preview a print	64
Print a draft	64
High-quality printing	65
If you have a high-resolution image	66
Print in gray shades	66
Print with no margins (T1200 series only)	66
Print with crop lines (T1200 series only)	67
Reprint last printed job	68
Use paper economically	68
Nest jobs to save roll paper (T1200 series only)	68
When does the printer try to nest pages?	69
What pages can be nested?	69
Which pages qualify for nesting?	69
How long does the printer wait for another file?	70
Use ink economically	70
Roll protection (T1200 series only)	70
Unattended printing/overnight printing (T1200 series only)	71
Color management	73
Introduction	74
How colors are represented	74
A summary of the color management process	74
Color calibration	74
Color management from printer drivers	76
Color management options	76
Printer emulation	76
Color adjustment options	77
Printing in color	77
Printing in grayscale	78
Color management from printer drivers (PostScript printers)	79
HP Professional PANTONE Emulation	79
Color emulation	80
CMYK color emulation	80
RGB color emulation	81
Color management from the Embedded Web Server (T1200 series only)	81
Submit Job options	81
Rendering intent	82
Perform black point compensation	82
Printing PANTONE swatch books	82
Color management from the front panel	83
Practical printing examples	85
Print a draft for revision with the correct scale	86
Using Adobe Acrobat	86
Print a project	88
Using Autodesk Design Review	88
Enabling HP Instant Printing from Autodesk Design Review	88
Enabling HP Instant Printing from the Batch Print Wizard	89
Using HP Instant Printing	92
Using AutoCAD	93
Using the Embedded Web Server to submit files (T1200 series only)	97
Using printer emulation	98
Using clip contents by margins	98
Print a presentation	98
Using AutoCAD	98
Using Adobe Photoshop	102
Print and scale from Microsoft Office	105
Using PowerPoint	105
Using Project	107
Using Excel	108
Job queue management	111
Introduction	112
Job queue page (T1200 series only)	112
Job preview (T1200 series only)	113
Turn off the job queue (T770 HD and T1200 series only)	113
Select when to print a job in the queue (T770 HD and T1200 series only)	113
Identify a job in the queue (T770 HD and T1200 series only)	114
Prioritize a job in the queue (T770 HD and T1200 series only)	114
Delete a job from the queue (T770 HD and T1200 series only)	114
Reprint or copy a job in the queue (T770 HD and T1200 series only)	115
Job status messages (T770 HD and T1200 series only)	115
Reactivate a job on hold (T1200 series only)	116
Retrieving printer usage information	117
Get printer accounting information	118
Check printer usage statistics	118
Printer statistics with the HP Utility	118
Printer statistics with the Embedded Web Server	118
Check ink and paper usage for a job	118
Ink and paper statistics with the HP Utility	118
Ink and paper statistics with the Embedded Web Server	119
Handling ink cartridges and printheads	120
About the ink cartridges	121
Check the ink cartridges status	121
Ink menu procedure	121
HP Utility procedures	121
Remove an ink cartridge	121
Insert an ink cartridge	123
About the printheads	124
Check the printhead status	124
Remove a printhead	125
Insert a printhead	128
Maintaining the printer	131
Check printer status	132
Clean the exterior of the printer	132
Maintain the ink cartridges	132
Move or store the printer	132
Update the firmware	133
Update the software	134
Printer maintenance kits	134
Secure Disk Erase	134
Accessories	136
How to order supplies and accessories	137
Order ink supplies	137
Order paper	137
Order accessories	141
Introduction to the accessories	141
Memory upgrade (T770 only)	141
PostScript upgrade (T770 series only)	141
External hard disk (T1200 series only)	142
Spindle	142
Jetdirect print server	142
Troubleshooting paper issues	143
The paper cannot be loaded successfully	144
General unsuccessful roll load issues	144
Unsuccessful roll load	144
Unsuccessful sheet load	145
Paper loading error messages	145
The paper type is not in the driver	145
Transparent or translucent paper	146
Glossy paper	146
Matte Paper	146
General-purpose paper	146
Photographic paper	146
Black ink is easily removed when touched	146
After printing, the paper has wrinkles or there is too much ink	146
The printer printed on the wrong paper type	147
An “on hold for paper” message (T1200 series only)	147
Which criteria are used to decide on which roll a job will be printed?	147
When is a job put on hold for paper?	147
If I load a new roll of paper, will jobs that were on hold for paper be automatically printed?	147
I don’t like jobs being put on hold for paper. Can I prevent it?	148
I set the option “Paper mismatch action” to Print anyway, but some jobs are still put on hold	148
My job is exactly as wide as the roll of paper that is loaded on the printer, but is put on hold for ...	148
The roll paper will not advance	148
The paper has jammed	149
A strip stays on the output tray and generates jams	151
The printer displays out of paper when paper is available	152
Prints do not fall neatly into the basket	152
The sheet stays in the printer when the print has been completed	152
The paper is cut when the print has been completed	152
The cutter does not cut well	152
The roll is loose on the spindle	152
Recalibrate the paper advance	153
Recalibrating the paper advance procedure	153
Return to default calibration	154
Troubleshooting print-quality issues	155
General advice	156
Print quality troubleshooting wizard	156
Horizontal lines across the image (banding)	157
Lines are too thick, too thin or missing	158
Lines appear stepped or jagged	158
Lines print double or in the wrong colors	159
Lines are discontinuous	160
Lines are blurred	160
Line lengths are inaccurate	161
The whole image is blurry or grainy	161
The paper is not flat	162
The print is scuffed or scratched	162
Ink marks on the paper	163
Horizontal smears on the front of coated paper	163
Ink marks on the back of the paper	163
Black ink comes off when you touch the print	164
Edges of objects are stepped or not sharp	164
Edges of objects are darker than expected	164
Horizontal lines at the end of a cut sheet print	164
Vertical lines of different colors	165
White spots on the print	165
Colors are inaccurate	165
Color accuracy using EPS or PDF images in page layout applications	166
Colors are fading	166
The image is incomplete (clipped at the bottom)	166
The image is clipped	166
Some objects are missing from the printed image	167
A PDF file is clipped or objects are missing	168
The Image Diagnostics Print	168
Corrective action	169
If you still have a problem	170
Troubleshooting ink cartridge and printhead issues	171
Cannot insert an ink cartridge	172
Ink cartridge status messages	172
Cannot insert a printhead	172
The front-panel display recommends reseating or replacing a printhead	172
Clean the printheads	173
Clean the printhead drop detector	173
Align the printheads	176
Reinsert printheads procedure	176
Image Quality Maintenance menu procedure	177
Scanning errors during alignment	178
Printhead status messages	178
Troubleshooting general printer issues	179
The printer will not start	180
The printer does not print	180
The printer seems slow	181
Communication failures between computer and printer	181
Cannot access the HP Utility	182
Cannot access the Embedded Web Server	182
Automatic file system check	182
An AutoCAD 2000 memory allocation error	183
No output when printing from Microsoft Visio 2003	183
Unavailable driver features when printing from QuarkXpress	183
Printer alerts	184
Front-panel error messages	185
HP Customer Care	187
Introduction	188
HP Professional Services	188
Knowledge Center	188
HP Start-Up Kit	188
HP Care Packs and Warranty Extensions	189
HP Installation	189
HP Instant Support	189
HP Proactive Support	189
Contact HP Support	190
Telephone number	190
Printer specifications	191
Functional specifications	192
Physical specifications	193
Memory specifications	193
Power specifications	193
Ecological specifications	194
Environmental specifications	194
Acoustic specifications	194
Glossary	195