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HP 800ps HP DesignJet 800PS Printer - User's Reference Guide - Page 89

Unknown Printhead Error

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Introduction Media & Ink Solving Problems Image Quality Problems Solutions Front Panel Ink Supply Problems Media Problems Printer Options Image Error Other Other Problems Index 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 ? then 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 & GIS—COLOR (Lines and low density)	26
CAD Rendering, GIS & 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
When to Replace	54
Drying Time	55
Drying Time Settings	56
Typical Drying Times	57
Drying Procedure	58
Ink Cartridges	59
Ink Cartridges Errors	60
Ink Cartridges Levels	61
Ink Cartridge Information	62
Ink Cartridge Replacement	63
Printheads	64
Printhead Errors	65
Printhead Information	66
PrintheadReplacement	67
Printhead Alignment	68
Solutions	69
Solving Problems	70
Finding the Source of Your Problem	71
Image Quality Problems	72
Configuration Correction	73
Troubleshooting Procedure	74
Running the Troubleshooting Utility	74
Diagnostic Print A Interpretation	75
Diagnostic Print B Interpretation	76
Troubleshooting Flow Chart	77
Advance Calibration	78
Advance Calibration Values	79
Stepped Lines	80
Incomplete Lines	81
Color Alignment	82
Horizontal Banding	83
Color Accuracy	84
Related Topics	84
Color Consistency problems	85
Long Term Color Bleeding (Glossy Papers)	85
Color Accuracy Configuration	86
Additional Color Accuracy Information	87
Ink Supply Problems	88
Printhead Problems after Replacement	88
Problems Inserting the Ink Cartridge	88
Problems inserting the Printhead	88
Unknown Printhead Error	89
Media Problems	90
Media	91
Clearing a Media Jam	92
Removing jammed paper	93
Removing jammed paper (Continued)	94
Ink Marks on the Media	95
Warped Lines	96
Blurred Lines (Ink “Bleeds” from Lines)	96
Marks or scratches on glossy paper after printing	96
Smears or Scratching on Your Printed Media	97
Media Loading Problems	98
Media Output Problems	99
Prints Fall on the Floor After Being Cut	99
Prints Do Not Stack Properly in the Media Bin	99
Image Error	100
Image is Incomplete	101
Print is Completely Blank	102
Output Contains Only a Partial Print	102
Image is Clipped	103
Long-Axis Print Is Clipped	103
Printed Image Incorrect	104
Image is in One Portion of the Printing Area	105
Image is Unexpectedly Rotated	105
Print is a Mirror Image of the Original	105
Print is Distorted or Unintelligible	106
One Image Overlays Another on the Same Sheet	106
Pen Settings Seem to have No Effect	106
Page Format or Rotate does not Work	106
Other Sources of Information	107
Other Problems	108
Communication Problems	109
File Size and Memory	109
Printer does not Print	110
Printer Seems Too Slow	111
Printer Waits Too Long to Print a Nest	111
Getting Help	112
HP Customer Care	113
What to Do Before You Call	114
HP DesignJet Online	115
Front Panel	116
The Front Panel	117
Navigation Keys	118
Display Screen	119
Action Keys	120
Menu Structure	121
Paper Menu	122
Ink Menu	123
Job Management Menu	124
Set-up Menu	125
Set-up Menu continued	126
Navigating the Menu System	127
Navigation Example	128
How to set the ink-drying time to three minutes	128
Message Descriptions	132
Printer Options	147
Page Format	148
Page description	149
Page Size	150
Margins	150
Printing Area	150
Inked Area	150
Rotating an Image	151
Job rotation via HP PostScript driver	152
Job Rotation (HP-GL/2)	152
Page Size and the Rotation	152
Rotating a Job with a Third Party PostScript Driver	152
What is Rotated?	153
Printing a Mirror Image	154
Scaling the Image	155
Scaling Factors	156
Setting Page Size in the Front Panel	157
Adjusting the Page Size in the Front Panel	158
Page Size	159
Page Size and Clipped Images	160
Page Size and Nesting (Roll Paper Only)	161
Image Appearance	162
Front Panel Image Options	163
Why Use the Front Panel?	163
Pen Widths and Colors in the Internal Palettes	164
To Select a Palette	165
Change the Palette Settings	166
How to define Palette A	167
Changing the Treatment of Overlapping Lines (Merge)	168
Printing Images in Grayscale	169
Print Speeds and Print Quality	170
Print Quality	172
Advanced Options	173
Improving Line Quality and Graphics Details	174
Best Quality Settings	175
Fast Quality Settings	176
Print Management	177
Cancelling a Page that is Printing	178
Cancelling the Drying Time	179
Managing the Queue	180
What is the Queue?	181
Printing with Queueing Turned ON	182
Printing with Queueing Turned OFF	183
Starting to Print a File that is Waiting for a Time-out	184
Identifying a Job in the Queue	185
Prioritizing a Job in the Queue	186
Making Copies of a Job in the Queue	187
Copies and Reprints	187
Nesting Pages	188
What is Nesting?	189
When Does the Printer Try to Nest Pages?	190
Which Pages Qualify for Nesting?	190
Turning Nesting On and Off	191
What Happens to Nesting if You Turn Queueing Off?	192
How Long does the Printer Wait for Another File?	192
Printer Configuration	193
Printer Information	194
Front Panel Setup	195
Menu and Message Language	196
Alert Buzzer	197
Screen Contrast	198
Altitude Setting	199
Changing the Graphics Language	200
To Change the Graphics Language Setting	201
Graphics Language and Networks	202
Setting up the I/O Card	203
Network	203
To Change the I/O Time-out Setting	203
Controlling the Cutter	204
Upgrading Your Printer	205
Color Settings	206
Color/monochrome	206
RGB	206
CMYK	206
Rendering Intent	206
Postscript Encoding	207
Logs	208
Printhead Log	208
Error Log	208
Other	209
Care of the Printer	210
Cleaning the Printer	211
Cleaning the Printer Exterior	211
Storing and Moving Your Printer	212
Installing Expansion Cards	213
Network Card Installation	214
HP-GL2 Accessory Card Installation	217
Specifications	218
Functional Specifications	219
Physical Specifications	223
Memory Specifications	224
Printer Power Specifications	225
Ecological Specifications	226
Enviromental Specifications	227
Acoustic Specifications	228
Connection Specifications	229
Cable Specification	230
Recommended Cables	231
Ordering Accessories	232
Documentation	233
Hardware	235
Consumable Items	236
Glossary	237

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