HP Scitex LX850 HP Scitex LX850 & LX820 Printers: Maintenance and troubles
HP Scitex LX850 Manual
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- HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 1
SCITEX LX850 & LX820 Printers Maintenance and troubleshooting guide - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 2
HP Products and services are set forth in the express warranty statement accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP follow the operating and safety instructions before starting the printer. Trademarks Microsoft® and Windows - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 3
substrate hazard ...3 Ink handling ...3 Warnings and cautions ...4 Warning labels ...4 Emergency stop buttons ...5 2 Printer status ...7 Check printer status ...7 Printer alerts ...7 3 Printer calibration ...9 Align the printheads ...9 Substrate-advance compensation 11 Color calibration ...12 Ink - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 4
cleaning roll and aerosol filters 41 Move the printer ...45 Preventive maintenance kits ...46 Cleaning kit ...46 5 Software maintenance ...47 Maintain the HP Internal Print Server 47 Update the firmware ...48 Update the IPS ...48 6 Troubleshoot substrate issues 49 The substrate cannot be loaded - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 5
washed out ...70 Colors are inaccurate ...71 Colors shift unexpectedly ...71 Blurred or defective areas on edges or lines 74 8 Troubleshoot double-sided printing 76 The printer will not let me print double-sided 76 Print-quality defects ...76 Marks on the substrate ...77 Substrate jams ...77 The - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 6
Server (IPS) cannot detect the printer 86 Print job files have not been properly deleted 86 Color calibration fails ...87 11 Front-panel error messages 88 12 When you need help ...92 Documentation ...92 HP Proactive Support ...92 HP Customer Care ...93 Service information ...94 Appendix A Preset - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 7
persons. General safety guidelines ● Refer to installation instructions before connecting the printer to the supply. ● There are no operator-serviceable parts inside the printer. Refer servicing to qualified service personnel. ● Turn off the printer, using both Branch Circuit Breakers located in the - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 8
indicate malfunctioning electrical circuits within the system. Call your service representative, and do not attempt to replace the HP Support to remove and replace the RCCB. ● If the RCCB trips, this indicates it is working correctly, return the printer to the original status and switch the printer - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 9
. ● Always wear personal protective equipment including boots and gloves. Ink handling Your printer does not use solvent inks and does not have the traditional problems associated with them. However, HP recommends that you wear gloves when handling ink system components. ENWW Mechanical hazard 3 - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 10
Safety precautions Warnings and cautions The following symbols are used in this manual to ensure the proper use of the printer and to prevent the printer from being damaged. Follow the instructions marked with these symbols. WARNING! Failure to follow the guidelines marked with this symbol could - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 11
position, and could crush your hand or anything else left underneath it. Danger that your hands may become trapped between gearwheels When the printer is printing, the printhead carriage travels back and forth across the substrate. Beware of this moving part. Emergency stop buttons There are four - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 12
Safety precautions 6 Chapter 1 Safety precautions ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 13
replacement. Printer alerts appear primarily at the HP Internal Print Server, but one alert at a time also appears at the front panel. ● HP Internal Print reappear when the printer is idle and there is nothing more important to report. The following alerts require a service engineer: ● Preventive - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 14
● Preventive maintenance #3 required ● Preventive maintenance #4 required Printer status 8 Chapter 2 Printer status ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 15
, printhead alignment with dual rolls is not recommended. To align the printheads, go to the HP Internal Print Server and select Printer > Printhead alignment. You can select automatic or manual alignment; the HP Internal Print Server will recommend one or the other, but you can always choose - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 16
Troubleshoot printhead alignment Automatic printhead alignment may fail occasionally. In some If the problem persists, please try using manual printhead alignment, or call your service representative (see HP Customer Care Centers on page 93). Printhead alignment diagnostic plot The printer offers a - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 17
you may wish to change the substrate-advance compensation. See Troubleshoot print-quality issues on page 61 for steps to determine whether . In the HP Internal Print Server, select Printer > Advance calibration, then select the print mode that you want to use. The printer prints three columns - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 18
is skewed. Check the distance between the substrate edge and the printer's side plate at the front and at the rear of the printer: the distances should be equal. TIP: With some substrate presets (such as HP photorealistic, HP self Adhesive), the magenta is almost invisible under the black, making - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 19
-tune your substrate preset for a specific print mode, see the User's guide. The recommended print modes for normal printing are as follows. Maximum ink 8 6 5 4 3 2 1 To start color calibration from the HP Internal Print Server, select Substrate > Color calibration, then click the Calibrate - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 20
and Ink Restriction Test Chart is printed, which contains scales of patches of each ink used in your printer. 2. The test chart is scanned and color-measured using the HP Embedded Spectrophotometer. If the scan cannot be completed successfully, a message is displayed on the front panel; see Color - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 21
Printer can be found in the table of supported substrate types in the User's guide. Only substrates wider than 914 mm (36 be laid down onto a given substrate. To adjust ink restriction percentages from the HP Internal Print Server, select Substrate > Edit > Color. Ink restriction percentages can - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 22
some color misregistration in your prints. You can reduce this problem using dynamic color registration, as follows: 1. Print a test pattern from the HP Internal Print Server. 2. Select settings to correct the error in the HP Internal Print Server. Consider performing dynamic color registration in - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 23
every substrate. If you see the same misregistration across the width of the roll, use printhead alignment instead. The solution: dynamic color registration 1. In the HP Internal Print Server, select the Printer menu and then Dynamic color registration. 2. Press the Print button - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 24
'A' and 'B' (or if the Dual Roll is loaded also C & D). Printer calibration NOTE: The substrate advances about 0.5 m (20 in) before the test the Dynamic color registration window still displayed by the HP Internal Print Server, under 'Manual alignment values'. 6. Select Save to apply the - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 25
scale. Dynamic color registration on the fly You can adjust the dynamic color registration while the printer is printing. In the HP Internal Print Server, select Printer > Printing adjustments. Printer calibration Change the A and/or B values and click Apply. The A value affects printing on the - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 26
troubleshooting guide). If required, perform the Printhead alignment and recheck that the Printheads are aligned. 1. Browse to the following directory: C:/users/currentlogin/Documents/HP IPS/Substrate Creation. Printer calibration 2. Select the file 'Test1_temp_profile'. 3. Click on Open and set - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 27
the Print Adjustment button, change the advance and dynamic color registration while printing, wait for 50 cm to be printed to be sure the printer has reached a stable phase (the first 50 cm can still be misaligned through the substrate advance or scan axis). 5. Use the following procedure to - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 28
under temperature more than others, with certain types of substrate the amount of deformation is too much and the calibration functionality in the printer cannot compensate (A or B over 30 or below -30). It is important to note that when using 8 pass unidirectional printmode with the 100% density - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 29
on page 24. TIP: If you remove an unexpired printhead from the printer, planning to reuse it later, the best way to protect it is by replacing the protective caps that you removed before inserting it into the printer. Maintain the substrates Keep substrates in their sealed wrapping material while - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 30
one or more of the printheads is performing poorly: 1. Go to the HP Internal Print Server and select Printer > Printhead cleaning. Maintain hardware 2. Press the Check button to perform routine cleaning. 3. If the problem persists, press the Print button in the same window to print the following - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 31
avoid possible damage to the printheads, the carriage cover may need to be cleaned about once every two months, depending on your use of the printer. An alert is displayed when the cover needs to be cleaned. 1. Go to the front panel and select Clean carriage cover from the Preventive Maintenance - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 32
You can access the rail from above. 6. Standing at the rear of the printer, clean the rear rail in the same way. You can access the rail from . 7. Wait until the rails are dry. 8. Move the carriage manually into the electrical compartment. Maintain hardware 9. Replace the carriage oiler foams - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 33
10. Replace the oil wicks, which are orange-colored and located under the oiler foams. The two front oil wicks are easy to remove once you have removed the oiler foam. 11. To replace the rear oil wicks, first loosen the two screws. 12. Remove the rear oiler assembly. Maintain hardware ENWW Clean - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 34
. 16. Lubricate the two carriage rails using a lint-free cloth impregnated with the oil provided in the cleaning kit. 17. Turn the printer back on. 18. Select Carriage beam position > Move to printing (normal) from the front panel's Substrate menu to lower the carriage beam into its normal - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 35
are three ink deposits, one for each printhead. They may need to be cleaned every three or four months, depending on your use of the printer. An alert is displayed when the ink deposits are 85% full, and again when they are full and need to be cleaned. 1. Go to the - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 36
, which may be about every 2 months, depending on your use of the printer. When you see the alert, follow this procedure to clean the sensor. 1. select Clean line sens. & inlets from the Preventive Maintenance menu . 2. The printer raises the carriage beam so that you can access the sensor. 3. Wait - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 37
8. Press the OK button on the front panel. The printer lowers the carriage beam to its normal position. WARNING! Do not insert your hands or anything else into the printer while the carriage is descending. Clean the main roller The main roller - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 38
meter). Cleaning the wheels manually could damage them, and is not recommended. Clean the platen You should clean your printer's platen every few months Follow these instructions to clean the platen. 1. Unload all substrate from the printer. See the User's guide. 2. Turn off the printer and wait - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 39
you are not sure which printheads to clean, clean all of the printheads. To clean the printheads, go to the HP Internal Print Server and select Printer > Printhead cleaning. HP recommends the Check and Clean option. Maintain hardware If you decide on a hard clean, you can select which printheads - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 40
. If necessary, clean them with a lint-free cloth dampened with 95% ethanol. TIP: It is not normally necessary to remove the edge holders from the printer, and doing so may damage them. When not required, they can simply be pushed to the side, away from the substrate. Clean the temperature sensors - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 41
7. Check that the lenses are clean by looking directly at them from underneath the printer. Alternatively, continue cleaning until the cotton swab remains clean after cleaning. 8. Press OK to replace the printhead in question (see the User's guide). ENWW Clean the tension roller (LX850 only) 35 - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 42
cover and the printhead access door. 5. Request a hard clean of the printhead (see Check the printheads on page 24). 6. If the error persists, call your service representative (see HP Customer Care Centers on page 93). 36 Chapter 4 Hardware maintenance ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 43
oil that continuously lubricate the carriage rails. They may need to be replaced about every 2 or 3 months, depending on your use of the printer. Replacement foams are available in the cleaning kit. 1. Go to the front panel and select Replace oiler foam from the Preventive Maintenance menu . The - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 44
5. Open the carriage cover to access the rear oiler foam. 6. Slide off the cover of the rear oiler foam. 7. Remove the old foam, insert the new foam, and replace the cover. Maintain hardware 8. Close the carriage cover and the printhead access door. 9. Press the OK key when finished. Replace the - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 45
substrate which lets through an significant quantity of ink, Please see your HP Scitex LX Printer family Legal information documentation for further information. 1. Remove the ink collectors from the printer (see the User's Guide). 2. Remove the ink-saturated foams. 3. Clean the plates and ribs with - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 46
left row of holes. 5. Replace the ink collectors in the printer. Replace the line sensor box An alert is displayed when the line sensor box needs to be replaced. The printer moves the carriage to the right so that the box is easily accessible, - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 47
If there is not enough of the roll to start a new job, the printer cancels the job. Whenever you replace the printhead cleaning roll, you should also the Maintenance Kit (see 'How to order supplies' in the User's Guide). TIP: You are recommended to wear gloves during these operations. Replace the - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 48
roll assembly out through the door. 4. Slide both rolls off their axles and dispose of the roll with the used cleaning material according to the instructions provided with the new roll. Keep the empty core to use as a takeup core. 5. Slide the new roll onto the upper axle. It clicks into - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 49
. 11. Grip the handle and push the whole printhead cleaning roll assembly back into the printer. 12. Close the door. Do not empty the drain container: this is done by a service engineer during preventive maintenance. Maintain hardware ENWW Replace the printhead cleaning roll and aerosol filters - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 50
Open the printhead access door in the side of the printer, and lift the carriage cover. 2. The aerosol filter old filter out of the bottom of its container and dispose of it according to the instructions provided with the new filter. Maintain hardware 5. Unpack the new filters and ensure that - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 51
5% inclination, see the following instructions. For more difficult movement operations, please call your service representative (see HP Customer Care Centers on page 93). CAUTION: Slopes steeper than 5% may cause serious damage to the printer. 1. Turn off the printer. 2. Disconnect all power and - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 52
maintenance kit. The kits are installed by service engineers only. You can see how close you are to needing preventive maintenance by selecting Information > Maintenance in the HP Internal Print Server. Cleaning kit A cleaning kit is provided with the printer; it is intended to provide cleaning - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 53
Windows on the computer supplied with the printer. In that operating environment, there are various things you can check in order to maintain optimum performance. You can make these checks after restarting the computer and before starting the HP Internal Print Server. ● The user account should - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 54
(including Windows Service Packs) have been installed successfully. ● Start the HP Internal Print printer using the HP Internal Print Server: select Firmware update from the Main tab. Follow the instructions guide. Update the IPS It is important that the previous version of the IPS in the Printers - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 55
Substrate issues 6 Troubleshoot substrate issues The substrate cannot be loaded successfully ● A substrate cannot be loaded unless all printer subsystems (e.g. the ink system) are ready. ● If the printer is unaware of the carriage beam position (after a printer recovery or shutdown), go to the - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 56
issues 3. If feasible, manually move the carriage slowly and 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 side of it. 50 Chapter 6 Troubleshoot substrate issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 57
input core. Take care to align the substrate with the output roll. 4. Lower the pinches. 5. Go to the HP Internal Print Server and select Substrate > Load/Unload, then select the printer configuration and press Load. NOTE: If the substrate check fails, return the roll to the input side and attach it - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 58
substrate to be collected, you will have to restart the collector manually after it stops. The collector occasionally fails to work correctly (LX850 Check that the winding direction is set correctly in the HP Internal Print Server. 2. Check that there is no Troubleshoot substrate issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 59
temperature or the vacuum. For information on how to adjust printer settings, see the User's guide. The ink is still wet when the substrate emerges 1. Check that the substrate you have loaded is the same type that you have selected in the HP - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 60
the substrate ● Incorrect routing of the substrate through the printer ● Incorrectly positioned edge holders ● Drying and curing temperatures substrate you are using is the same type that you have selected in the HP Internal Print Server. 2. Try to minimize skew while loading the substrate. Double - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 61
Substrate issues 3. Check that there is no telescoping of the input roll. 4. Check that the substrate edge holders are correctly positioned (1). 5. Try using the Diverter rollers. You are recommended to use both diverters when printing on selfadhesive substrates, and the output diverter (only) - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 62
so close to the substrate. For information on how to adjust printer settings, see the User's Guide. There are ink marks on the substrate This problem can be caused by the carriage touching the substrate and smearing knob and turn it as shown below. 56 Chapter 6 Troubleshoot substrate issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 63
the substrate or on the main roller. If this happens, proceed as follows. 1. Turn off the printer. 2. Leave the printer to cool down for an hour or two. 3. Locate the rear springs that support the carriage rail, check the plastic oil reservoirs designed to capture excess ink. ENWW There are drops - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 64
5. Wipe the rear springs and clean with a lint-free cloth. 6. At the front of the printer, open the Officeability covers and look down into the chassis. Locate the lip designed to catch excess to the oiling foams, which may cause the above problem. 58 Chapter 6 Troubleshoot substrate issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 65
change the printmode or the substrate width between tiles. To print the tiles all at once, we recommend the following: a. Create the tiles from the HP Internal Printer Server (IPS). b. If you are creating the tiles from the RIP, ensure that you send all the tiles within the same jobs sent to - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 66
repeatability depends on the substrate, and the contents of each job (mainly when the substrate is reacting differently depending of the ink density). 60 Chapter 6 Troubleshoot substrate issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 67
7 Troubleshoot print-quality issues Print-quality issues General advice When you have any print-quality problem: ● To achieve the best performance from your printer, use only genuine HP supplies and accessories, whose reliability and performance have been thoroughly tested to give trouble-free - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 68
you should turn off the sensor (in the Loaded Substrate window in the HP Internal Print Server) and adjust the substrate advance manually. See Substrate-advance compensation on page 11. 2. If the problem persists, increase the number of passes. 62 Chapter 7 Troubleshoot print-quality issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 69
Open the door on the front right of the printer and pull out the printhead cleaning roll assembly. pump. In this case, please call your service representative (see HP Customer Care Centers on page 93). If window in the HP Internal Print Server) and adjust the substrate advance manually. If you are - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 70
wrinkles in the substrate on page 54 For information on how to adjust printer settings, see the User's guide. For more specific types of vertical banding in printed area fills refer to the following troubleshooting. Vertical Banding printing in the same color (gray, brown, green) A small amount of - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 71
recommended to use both diverters when printing on self-adhesive substrates, and the output diverter (only) when printing on fabrics. 7. Consider changing the printer's configuration. For the LX850 use the roll-to-free-fall configuration as it is least prone to wrinkles.. 8. Increase the vacuum, to - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 72
Print-quality issues Colors are misaligned This problem can have various slightly different visible symptoms. Colors are the HP Internal Print Server. If the misalignment appears to be random, try the solutions recommended for banding (see Banding on page 62). 66 Chapter 7 Troubleshoot print- - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 73
doubled, the chances are that printhead alignment is not good). See Align the printheads on page 9, if the problem persists after automatic printhead alignment, try the manual printhead alignment. 2. Check carriage beam position. If it is in a higher position than the substrate type (normal printing - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 74
through the Dynamic color registration under the printer menu and prints two scales for each registration on page 16. Print-quality issues 5. Problem specific to printed black text. Check in your the substrate-advance setting. 3. If the problem persists, check printhead alignment and correct it - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 75
of passes or try unidirectional printing, if available. b. Increase the drying temperature. c. Decrease the ink limit. For information on how to adjust printer settings, see the User's guide. The print is smudged This indicates that the ink is not dry. Smudging or oily marks may occur all over the - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 76
in the HP Internal Print the printer. 7. If the problem occurs only manually. 2. Align the printheads. 3. Recreate the substrate preset. For information on how to adjust printer settings, see the User's guide printer settings, see the User's guide. 70 Chapter 7 Troubleshoot print-quality issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 77
Check that the loaded substrate is the same as the substrate selected in the HP Internal Print Server. 3. Check that the ICC profile used by the RIP performance we recommend performing the Color Calibration frequently, depending on the printer's usage it can be scheduled weekly, every two weeks or - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 78
bar file to take is available on the IPS PC, under: Documents\HP IPS\Spit Bars, take the file 'spitBars_300_HR_1.TIFF'. Do NOT use X fill dependence Plot to Plot X X Printer to printer X Startup X When printing using the tiling problem. 72 Chapter 7 Troubleshoot print-quality issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 79
If the second tile is rotated, the eye does not see the color difference anymore. Refer to the User's Guide for the details on how to rotate an image using the HP Internal Printer Server. When performing 'Nesting' In some very extreme and specific cases, depending on how the plots are organized, you - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 80
Internal Printer Server, the right spit bars to print, available under: C:\Users\windows Login\Documents\HP IPS\Spit Bars, take a file ending by 'HR_1.tif' Do NOT use the default spit bars from the RIP as it will not print any bars with Light Cyan, or Light magenta. 74 Chapter 7 Troubleshoot print - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 81
NOTE: Width of the recommended spit bars is 3.5 cm (1.4") Print-quality issues ENWW Blurred or defective areas on edges or lines 75 - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 82
Double-sided printing is available only with HP LX610 inks. 5. Double-sided printing is problems when using double-sided printing. 1. Any print-quality defects seen while printing Side A can be solved using standard procedures: see Troubleshoot (refer to the User's guide for details). Performing the - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 83
Line (dotted or continuous) could cause the system error 78.7:01, use the following procedure to troubleshoot the issue. 1. Check that the registration line is positioned as described in the User's Guide at the beginning of the platen. 2. Check that Side A of the substrate is clean. 3. Check that - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 84
to deselect Side Edge Detection option, refer to the User's Guide. 2. Side A of the substrate is dirty and the printer cannot detect the registration line. 3. Check the Substrate Edge Holders is not enabled. 2. The images are not centered. 78 Chapter 8 Troubleshoot double-sided printing ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 85
. See the User's Guide for more detail. Printing a queue using the double-sided functionality Double-sided functionality was designed as a guide to achieve a double- each time for a new job. NOTE: Queue printing is not supported for roll-to roll double-sided printing. The Internal Print Server shows - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 86
the same size The high temperatures used to cure the latex ink could produce thermal contraction in some substrates, resulting in width. 2. Reprint side A with length and width corrections; the printer will accept differences up to 10% between sides A and B. Troubleshoot double-sided printing ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 87
Troubleshoot ink cartridge and printhead issues Cannot insert an ink cartridge 1. Use the correct procedure to change ink cartridges, through the front panel. See the User's guide problem persists, insert a new ink cartridge. 4. If the problem still persists, call your service representative (see HP - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 88
check the front panel message. 3. If the problem persists, remove the printhead again. Illuminate the connections look dirty, clean them as follows. a. Turn off the printer. b. Place a piece of paper underneath the carriage to collect any Troubleshoot ink cartridge and printhead issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 89
5. If the problem persists, insert a new printhead. 6. If the problem still persists, call your service representative (see HP Customer Care Centers on drying temperature. For information on how to adjust printer settings, see the User's guide. Incorrect printhead cleaning roll errors You should not - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 90
and the circuit breakers are all up. General printer issues 3. If any of the circuit breakers trip (from up to down) while the printer is operating, switch off the printer and call your service representative (see HP Customer Care Centers on page 93). 84 Chapter 10 Troubleshoot other issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 91
problems, please call your service representative (see HP Customer Care Centers on page 93). The printer seems slow You may experience a temporary delay while the printer Manual to change the configuration so that the printer uses the manual settings. 9. From the IPV4 Settings menu, select Manual - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 92
a browser in the IPS and going to Tools>Internet Options> Connections (see the Installation guide for more details). Print job files have not been properly deleted See the User's guide to find out how to delete a job completely. General printer issues 86 Chapter 10 Troubleshoot other issues ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 93
as banding). See Troubleshoot print-quality issues on page 61. ● Either the HP Embedded Spectrophotometer or the line sensor is not working properly. See Clean the line sensor and aerosol inlets on page 30. If the problem persists, call your service representative (see HP Customer Care Centers on - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 94
the recommendation but the problem persists, call your service representative. See HP Customer Care Centers on nozzles), and reinsert the printhead. See the User's guide. You are advised to clean the ink deposits. See manually, then lower the pinchwheels and push the assembly back into the printer. - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 95
substrate pressure handles. See the User's guide. You are advised to contact your service representative. See HP Customer Care Centers on page 93. Load substrate in the printer until temperatures settle down after printing. Check that the three-phase power supply is working. This problem can also be - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 96
the printer (see the User's guide). Open the FH11 fuse holders and check the fuses. Replace any fuse if necessary. 15.1 The printer is printer. If the error persists, call your service representative (see HP Customer Care Centers on page 93). If no error is reported but there is still some problem - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 97
) Error code Recommendation 48.1.4 Carriage beam error. Restart the printer. If the error persists, call your service representative (see HP Customer Care Centers on page 93). If no error is reported but there is still some problem with substrate advance, go to the front panel and select - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 98
www.hp.com/go/LX820/manuals/ or http://www.hp.com/go/LX850/manuals/. ● Site preparation guide ● Site preparation checklist ● User's guide ● Maintenance and troubleshooting guide ● Legal information ● Warranty information HP Proactive Support HP Proactive Support helps reduce costly printer downtime - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 99
Help HP Customer Care HP Customer Care offers award-winning support to ensure you get the most from your printer, providing comprehensive, proven support expertise and new technologies to give you unique end-to-end support. Services include setup and installation, troubleshooting tools, warranty - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 100
which may be useful to a service engineer trying to fix a problem. There are two different ways to request this list: ● In the HP Internal Print Server, select Information > Service information. ● From any computer with Internet access, enter the URL of your printer into a Web browser, followed by - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 101
Web browser, and later send the file. Alternatively, from Internet Explorer you can send the page directly: select File > Send > Page by E-mail. Help ENWW Service information 95 - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 102
A Preset creation flowchart Preset creation flowchart 96 Appendix A Preset creation flowchart ENWW - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 103
presets' and 'media profiles' to the new LX610 Inks Adapt presets This section is applicable to customers that have upgraded their HP Scitex LX600/LX800/L65500 Printer to the new LX610 Inks but still want to use the previous customized media profile and customized substrate presets that were based - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 104
your HP Scitex LX600/LX800/L65500 Printer to the new LX610 Inks, and you are not satisfied with the results when printing on specific substrates with your previously existing customized media profiles. 1. Note the values of the settings from the screen shown here. Refer to the User's Guide - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 105
2. Note the values of the ink restriction percentages from the color settings screen shown here, refer to Ink restrictions on page 15. Please be aware that in order to achieve the correct results, the new source substrate must match the source of the original customized substrate (banner, self- - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 106
were used for the previous Customized Substrate Preset. 4. Press the Print test button (refer to the User's Guide) and check to see if the results are satisfactory, if they are go to the HP Internal Print Server and select Substrate > Remove and delete the old Substrate Preset. 5. If the results are - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 107
Print Server maintenance 47 upgrade 48 HP Proactive Support 92 I ink cartridge cannot insert 81 maintenance 23 reseat 81 ink collector foams replacing 38 ink deposits maintenance 29 ink restrictions 15 IP address set manually 85 L labels, warning 4 line sensor cleaning 30 line sensor box replacing - HP Scitex LX850 | HP Scitex LX850 & LX820 Printers: Maintenance and troubles - Page 108
53 wet ink 53 wrinkles 54 substrate edge holders cleaning 34 substrate-advance sensor cleaning 33 support services HP Customer Care 93 HP Proactive Support 92 T telephone support 93 temperature sensors cleaning 34 tension roller cleaning 35 thunderstorm 85 W warning 4 warning labels 4 102 Index
SCITEX LX850 & LX820 Printers
Maintenance and troubleshooting guide