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The substrate is not attached to the input core, Substrate issues

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Substrate issues 3. If feasible, manually move the carriage slowly and carefully to the side, away from the substrate. If this is not feasible because of the severity of the jam, try raising the carriage beam to its maximum height. 4. Remove all substrate and pieces of substrate from the printing zone and from any other parts of the printer into which they may have fallen. Check the curing zone in particular. If you are unable to remove them all, please call your service representative (see HP Customer Care Centers on page 93). 5. Before restarting the printer and reloading the substrate, check that all circuit breakers are on and all emergency stop buttons released. The substrate is not attached to the input core If the printer detects a lack of tension during the substrate check after loading, it will ask you to confirm the winding direction. If the roll is not firmly attached to the input core during printing, you may see banding on your prints. If you see an error message numbered 78.2:01 while printing, it means that the substrate may have become detached from the rear spindle, or the core is slipping on the spindle. This could mean that you have reached the end of the roll, or the spindle is not correctly inflated, or the dual-roll differential hub is locked. The substrate is automatically unloaded when this error occurs. You should respond to this error in the following ways. ● Check whether you have reached the end of a roll. ● For single-roll printing, check that the spindle is correctly inflated. ● For dual-roll printing, check that the differential hub is unlocked. ● Check that the hubs are tightly secured to the spindle. ● Check that the diameter of each substrate core is not too large for the spindle. ● Check that each substrate core is tightly connected to the hubs on each side of it. 50 Chapter 6 Troubleshoot substrate issues ENWW

Section	Page
Safety precautions	7
General safety guidelines	7
Electrical shock hazard	7
Heat hazard	8
Fire hazard	8
Mechanical hazard	9
Heavy substrate hazard	9
Ink handling	9
Warnings and cautions	10
Warning labels	10
Emergency stop buttons	11
Printer status	13
Check printer status	13
Printer alerts	13
Printer calibration	15
Align the printheads	15
Troubleshoot printhead alignment	16
Printhead alignment diagnostic plot	16
Substrate-advance compensation	17
Substrate-advance test print	17
Color calibration	18
Ink restrictions	21
Color profiles	22
Dynamic color registration	22
The problem: color misregistration	22
The solution: dynamic color registration	23
Dynamic color registration without the test pattern	25
Dynamic color registration on the fly	25
Which calibrations are specific to a certain substrate preset or printmode	28
Hardware maintenance	29
Maintain the ink cartridges	29
Maintain the printheads	29
Maintain the substrates	29
Check the printheads	30
Clean the carriage cover	31
Clean the carriage rails	31
Clean the curing plates	34
Clean the diverter rollers	34
Clean the exterior of the printer	35
Clean the ink deposits	35
Clean the line sensor and aerosol inlets	36
Clean the main roller	37
Clean the pinch wheels	38
Clean the platen	38
Clean the printheads	39
Clean the substrate-advance sensor	39
Clean the substrate edge holders	40
Clean the temperature sensors	40
Clean the tension roller (LX850 only)	41
Maintain the printhead primers	41
Replace the carriage oiler foams	43
Replace the ink collector foams (LX850 only)	44
Replace the line sensor box	46
Replace the printhead cleaning roll and aerosol filters	47
Move the printer	51
Preventive maintenance kits	52
Cleaning kit	52
Software maintenance	53
Maintain the HP Internal Print Server	53
Update the firmware	54
Update the IPS	54
Troubleshoot substrate issues	55
The substrate cannot be loaded successfully	55
The substrate has jammed	55
The substrate is not attached to the input core	56
The core slips on the Spindle (Dual Roll)	57
The collector stops winding prematurely (LX850 only)	58
The collector occasionally fails to work correctly (LX850 only)	58
The collector winds in the wrong direction (LX850 only)	58
The collector detaches the substrate from the spindle (LX850 only)	58
There is skew or telescoping on the collector (LX850 only)	58
The substrate has jammed on the collector (LX850 only)	59
The substrate sticks to the platen	59
The ink is still wet when the substrate emerges	59
The substrate is not flat	59
There are wrinkles in the substrate	60
There are ink marks on the substrate	62
There are drops of ink on the substrate	63
There are drops of oil on the substrate	63
The printed plot is shorter than expected	65
How to achieve better consistency between jobs of the same length	65
Troubleshoot print-quality issues	67
General advice	67
Banding	68
Vertical Banding in the printed area fills	70
Straight white lines in one color	71
Colors are misaligned	72
Colors are misaligned vertically	72
Colors are misaligned horizontally	73
Correcting misregistration	73
The print is grainy	74
The print is smudged	75
Edges of objects are rough or blurred	76
Colors look washed out	76
Colors are inaccurate	77
Colors shift unexpectedly	77
How to avoid Color Inconsistency	77
When printing using the tiling option	78
When performing ‘Nesting’	79
Neighboring area fill dependence	79
When printing area fills on some substrates	80
Blurred or defective areas on edges or lines	80
Troubleshoot double-sided printing	82
The printer will not let me print double-sided	82
Print-quality defects	82
Marks on the substrate	83
Substrate jams	83
The printer cannot detect the Image Registration Line	83
The printer cannot detect the left edge of the substrate	84
Excessive registration error along substrate movement direction	84
Excessive registration error along carriage movement direction	84
The relative position between side A and B was not as expected	85
Printing a queue using the double-sided functionality	85
The Internal Print Server shows only one row of jobs	85
The number of copies do not match between Side A and B	85
Printing double-sided does not respect the left edge position selected	86
The two sides of a double-sided job are not the same size	86
Troubleshoot ink cartridge and printhead issues	87
Cannot insert an ink cartridge	87
Cannot insert a printhead	87
The front panel recommends replacing or reseating an ink cartridge	87
The front panel recommends replacing or reseating a printhead	88
A printhead has overheated	89
A printhead has damaged the substrate	89
Incorrect printhead cleaning roll errors	89
Troubleshoot other issues	90
The printer does not start	90
The printer does not print	91
The printer seems slow	91
The HP Internal Print Server cannot retrieve an IP address	91
The HP Internal Print Server (IPS) cannot detect the printer	92
Print job files have not been properly deleted	92
Color calibration fails	93
Front-panel error messages	94
When you need help	98
Documentation	98
HP Proactive Support	98
HP Customer Care	99
HP Customer Care Centers	99
North America	99
Europe, Middle East and Africa	99
Asia and Pacific	100
Latin America	100
Service information	100
Preset creation flowchart	102
How to adapt your previously developed ‘substrate presets’ and ‘media profiles’ to the new LX610 Ink ...	103

Match case Limit results 1 per page

If feasible, manually move the carriage slowly and carefully to the side, away from the substrate. If

this is not feasible because of the severity of the jam, try raising the carriage beam to its maximum

height.

Remove all substrate and pieces of substrate from the printing zone and from any other parts of

the printer into which they may have fallen. Check the curing zone in particular. If you are unable

to remove them all, please call your service representative (see

HP Customer Care Centers

on page

Before restarting the printer and reloading the substrate, check that all circuit breakers are on and

all emergency stop buttons released.

The substrate is not attached to the input core

If the printer detects a lack of tension during the substrate check after loading, it will ask you to confirm

the winding direction.

If the roll is not firmly attached to the input core during printing, you may see banding on your prints.

If you see an error message numbered 78.2:01 while printing, it means that the substrate may have

become detached from the rear spindle, or the core is slipping on the spindle. This could mean that you

have reached the end of the roll, or the spindle is not correctly inflated, or the dual-roll differential hub

is locked. The substrate is automatically unloaded when this error occurs.

You should respond to this error in the following ways.

●

Check whether you have reached the end of a roll.

●

For single-roll printing, check that the spindle is correctly inflated.

●

For dual-roll printing, check that the differential hub is unlocked.

●

Check that the hubs are tightly secured to the spindle.

●

Check that the diameter of each substrate core is not too large for the spindle.

●

Check that each substrate core is tightly connected to the hubs on each side of it.

Chapter 6

Troubleshoot substrate issues

ENWW

Substrate issues