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HP 800ps HP Designjet 800ps Printer - User's Guide - Page 88

Unknown Printhead Error

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Introduction Media & Ink Solutions Front Panel Printer Options Other Index Solving Problems Image Quality Problems Ink Supply Problems Media Problems Image Error Other Problems Getting Help Unknown Printhead Error An unknown printhead error occurs when the one of the printheads is causing a problem but the system cannot detect which one it is. Whenever this happens the front panel displays this error message. The number of printheads with unknown errors will either be all the color printheads or all the printheads. Use the following procedure to isolate the faulty printhead. 1. Select Replace Printheads from the front panel. 2. Open the carriage cover and remove ALL the printheads. 3. Reinsert the Cyan printhead only and close the carriage cover and the window. 4. Check the front panel-if the status of the Cyan printhead is X or ?, the conclusion is that the Cyan printhead is faulty and must be replaced. If the status of the Cyan printhead is OK, the conclusion is that the Cyan printhead is working correctly. Repeat the process from step 1 for the other color printheads to identify which one is failing.

Section	Page
Introduction	1
Using this Guide	2
How to Use this Guide	3
Related Information	4
User’s Reference Guide Navigation	5
Introducing Your HPDesignJet800PS Printer	6
Your Printer’s Main Features	7
HP Ink Supplies	9
Print Resolution	10
Media	11
User Interface	12
Memory	13
Drivers	14
Front View of Printer	15
Printer Connections	16
Media & Ink	17
Media Choice	18
Choosing Paper or Other Media	19
Paper Types	20
Physical Characteristics of Paper Types	21
Additional Information About Paper Types	23
Combinations of Media Type and Print Quality Selection	24
CAD Drawings—Mono	25
CAD Drawings and GIS—Color (Lines and low density)	26
CAD Rendering, GIS and Images—Color and CAD (high ink density)	27
Handling Your Paper or Type of Media	28
Obtaining Roll or Sheet Paper Information	29
Print Times for a Selected Print Quality	30
Printable Area	31
ANSI Paper	32
Architectural Paper	33
ISO Paper	34
ICC Profiles	35
Roll Media	36
Installing a New Roll on the Printer	37
Loading Roll Media	38
Unloading Roll Media	39
Removing Roll Media from the Printer	40
Removing Roll Media from the Spindle	41
Cutter Replacement	42
Prerequisites	42
Important Information	42
Sheet Media	43
Which Side Up?	44
Which Edge First?	45
Loading Sheet Media	46
Important	46
Unloading Sheet Media	47
Important	47
Ink System	48
What are HP Ink Supplies?	49
Ink Cartridges	49
Printheads	49
Component identification	50
Ink Supply Guidelines	51
Precautions	52
Color Calibration	53
Drying Time	54
Drying Time Settings	55
Typical Drying Times	56
Drying Procedure	57
Ink Cartridges	58
Ink Cartridge Errors	59
Ink Cartridge Levels	60
Ink Cartridge Information	61
Ink Cartridge Replacement	62
Printheads	63
Printhead Errors	64
Printhead Information	65
PrintheadReplacement	66
Printhead Alignment	67
Solutions	68
Solving Problems	69
Finding the Source of Your Problem	70
Image Quality Problems	71
Configuration Correction	72
Troubleshooting Procedure	73
Running the Troubleshooting Utility	73
Diagnostic Print A Interpretation	74
Diagnostic Print B Interpretation	75
Troubleshooting Flow Chart	76
Advance Calibration	77
Advance Calibration Values	78
Stepped Lines	79
Incomplete Lines	80
Color Alignment	81
Horizontal Banding	82
Color Accuracy	83
Related Topics	83
Color Consistency problems	84
Long Term Color Bleeding (Glossy Papers)	84
Color Accuracy Configuration	85
Additional Color Accuracy Information	86
Ink Supply Problems	87
Printhead Problems after Replacement	87
Problems Inserting the Ink Cartridge	87
Problems Inserting the Printhead	87
Unknown Printhead Error	88
Media Problems	89
Media	90
Clearing a Media Jam	91
Removing Jammed Paper	92
Removing Jammed Paper (continued)	93
Ink Marks on the Media	94
Warped Lines	95
Blurred Lines (Ink “Bleeds” from Lines)	95
Marks or Scratches on Glossy Paper after Printing	95
Smears or Scratching on Your Printed Media	96
Media Loading Problems	97
Media Output Problems	98
Prints Fall on the Floor After Being Cut	98
Prints Do Not Stack Properly in the Media Bin	98
Image Error	99
Image is Incomplete	100
Print is Completely Blank	101
Output Contains Only a Partial Print	101
Image is Clipped	102
Long-Axis Print Is Clipped	102
Printed Image Incorrect	103
Image is in One Portion of the Printing Area	104
Image is Unexpectedly Rotated	104
Print is a Mirror Image of the Original	104
Print is Distorted or Unintelligible	105
One Image Overlays Another on the Same Sheet	105
Pen Settings Seem to have No Effect	105
Page Format or Rotate does not Work	105
Other Sources of Information	106
Other Problems	107
Communication Problems	108
File Size and Memory	108
Printer Does not Print	109
Printer Seems Too Slow	110
Printer Waits Too Long to Print a Nest	110
Getting Help	111
HP Customer Care	112
What to Do Before You Call	113
HP DesignJet Online	114
Front Panel	115
The Front Panel	116
Navigation Keys	117
Display Screen	118
Action Keys	119
Menu Structure	120
Paper Menu	121
Ink Menu	122
Job Management Menu	123
Set-up Menu	124
Set-up Menu (continued)	125
Navigating the Menu System	126
Navigation Example	127
How to Set the Ink-drying Time to Two Minutes	127
Message Descriptions	131
Printer Options	146
Page Format	147
Page Description	148
Page Size	149
Margins	149
Printing Area	149
Inked Area	149
Rotating an Image	150
Job Rotation Using an HP PostScript Driver	151
Job Rotation (HP-GL/2)	151
Page Size and the Rotation	151
Rotating a Job with a Third Party PostScript Driver	151
What is Rotated?	152
Printing a Mirror Image	153
Scaling the Image	154
Scaling Factors	155
Setting Page Size in the Front Panel	156
Adjusting the Page Size in the Front Panel	157
Page Size	158
Page Size and Clipped Images	159
Page Size and Nesting (Roll Paper Only)	160
Image Appearance	161
Front Panel Image Options	162
Why Use the Front Panel?	162
Pen Widths and Colors in the Internal Palettes	163
To Select a Palette	164
Change the Palette Settings	165
How to Define Palette A	166
Changing the Treatment of Overlapping Lines (Merge)	167
Printing Images in Grayscale	168
Print Speeds and Print Quality	169
Print Quality	171
Advanced Options	172
Improving Line Quality and Graphics Details	173
Best Quality Settings	174
Fast Quality Settings	175
Print Management	176
Cancelling a Page that is Printing	177
Cancelling the Drying Time	178
Managing the Queue	179
What is the Queue?	180
Printing with Queueing Turned ON	181
Printing with Queueing Turned Off	182
Starting to Print a File that is Waiting for a Time-out	183
Identifying a Job in the Queue	184
Prioritizing a Job in the Queue	185
Making Copies of a Job in the Queue	186
Copies and Reprints	186
Nesting Pages	187
What is Nesting?	188
When Does the Printer Try to Nest Pages?	189
Which Pages Qualify for Nesting?	189
Turning Nesting On and Off	190
What Happens to Nesting if You Turn Queueing Off?	191
How Long does the Printer Wait for Another File?	191
Printer Configuration	192
Printer Information	193
Front Panel Setup	194
Menu and Message Language	195
Alert Buzzer	196
Screen Contrast	197
Altitude Setting	198
Changing the Graphics Language	199
To Change the Graphics Language Setting	200
Graphics Language and Networks	201
For System Administrators	201
Setting up the I/O Card	202
Network	202
To Change the I/O Time-out Setting	202
Controlling the Cutter	203
Upgrading Your Printer	204
Color Settings	205
Color/monochrome	205
RGB	205
CMYK	205
Rendering Intent	205
Postscript Encoding	206
Logs	207
Printhead Log	207
Error Log	207
Other	208
Care of the Printer	209
Cleaning the Printer	210
Cleaning the Printer Exterior	210
Storing and Moving Your Printer	211
Installing Expansion Cards	212
Network Card Installation	213
HP-GL2 Accessory Card Installation	216
Specifications	217
Functional Specifications	218
Physical Specifications	222
Memory Specifications	223
Printer Power Specifications	224
Ecological Specifications	225
Enviromental Specifications	226
Acoustic Specifications	227
Connection Specifications	228
Cable Specification	229
Recommended Cables	230
Ordering Accessories	231
Documentation	232
Hardware	234
Consumable Items	235
Glossary	236

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