HP Designjet L26500 HP Designjet L26500 printer series - Maintenance and troub
HP Designjet L26500 Manual
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- HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 1
DESIGNJET L26500 printer series Maintenance and troubleshooting guide - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 2
the CD/DVD provided in the box. For some countries/regions a printed HP Limited Warranty is provided in the box. In countries/regions where the warranty is not provided in printed format, you may request a printed copy from http://www.hp.com/ go/orderdocuments/, or write to: North America: Hewlett - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 3
of the ink cartridges 6 Check the status of a printhead 6 Check the file system ...7 Printer alerts ...7 3 Firmware update ...8 4 Hardware maintenance ...9 Ink system tips ...9 Align the printheads ...9 Check substrate porosity ...10 Clean the electrical connections on a printhead 12 Clean the - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 4
an ink cartridge ...23 Replace the ink maintenance kit 27 Replace a printhead ...30 Replace the printhead cleaning kit 35 Service maintenance ...40 5 Substrate settings ...41 Download media presets ...41 Add a new substrate ...41 Faster printing ...51 Color calibration ...51 Color profiles ...52 - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 5
8 Troubleshoot ink-system issues 72 Ink maintenance kit needs to be installed 72 Cannot insert an ink cartridge 72 Cannot insert a printhead ...72 Cannot insert the printhead cleaning cartridge 72 Front panel recommends reseating or replacing a printhead 73 Clean the printheads ...73 Align the - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 6
vi ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 7
to the installation instructions before connecting the printer to the supply. ● There are no operator-serviceable parts inside the printer except those covered by HP's Customer Self Repair program (see http://www.hp.com/go/selfrepair/). Refer servicing of other parts to qualified service personnel - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 8
substrate path. Fire hazard The drying and curing subsystems of the printer operate at high temperatures. Call your service representative if the printer tap) to connect both power cords. ● Use only the power cords supplied by HP with the printer. Do not use a damaged power cord. Do not use the power - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 9
problems associated with them. However, HP recommends that you wear gloves when handling ink system components. 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 - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 10
the spindle into the printer. Risk of trapped fingers. Do not touch spindle gears while moving. Do not put objects on top of the printer. Do not cover the top fans. You are recommended to wear gloves when handling ink cartridges, printhead cleaning cartridges and the printhead cleaning container - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 11
the following ways: ● The Embedded Web Server displays the status of the printer, the loaded substrate and the ink system. To use the Embedded Web Server, enter your printer's URL into your Web browser. The URL is displayed on the printer's front panel: it is http://192.168.1.1 in the example below - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 12
Printer status The Supplies page shows you the status of the loaded substrate, the ink cartridges, the printheads, the heaters, the printhead cleaning kit, the ink funnel and the ink maintenance kit. The traffic light shows whether maintenance is required. For further information, click View - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 13
about half an hour. Printer alerts The printer can communicate two types of alerts: ● Errors: When the printer is unable to print. ● Warnings: When the printer needs attention for an adjustment, such as a calibration, preventive maintenance or ink cartridge replacement. Printer alerts appear in the - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 14
are controlled by software that resides in the printer, also known as firmware. From time to time, firmware updates from Hewlett-Packard become available. These updates increase the printer's functionality and enhance its features. Firmware updates can be downloaded from HP's Web site (http - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 15
may need the User Maintenance Kit that was provided with your printer. Ink system tips For best results, always follow these guidelines: ● Follow the instructions on the front panel during installation. ● Allow the printer and the printhead cleaning cartridge to clean the printheads automatically - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 16
select Image quality maintenance > Align printheads > Manual PH alignment > Print alignment pattern. To request manual printhead alignment from the Embedded Web Server, select the Setup tab, then select Printhead alignment > Manual printhead alignment > Print. The printer prints 17 rows labelled - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 17
to check. 5. Open your RIP software. 6. Download the test file from inside the printer: http://printerIP/hp/device/webAccess/ images/Ink_trespassing_check.pdf, where printerIP is the IP address of your printer. 7. Print the test file using the number of passes and media profile that you intend to - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 18
of the connections when no problems are apparent is not recommended. A carriage interconnect wiper is included with your printer in the User Maintenance Kit. Use this to clean the electrical interconnects on both the printhead carriage and the printhead if the Reseat or Replace message persists next - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 19
the printhead carriage latch and extract the printhead that is causing the problem, as indicated on the front panel. See Replace a printhead on up any ink deposit that may have accumulated on the bottom surface of the slot. CAUTION: If the carriage remains in the central part of the printer for more - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 20
the printhead carriage. See Replace a printhead on page 30. 11. After completing the cleaning process, open the carriage interconnect wiper by pulling on the sponge tab. 12. Remove the soiled sponge from the carriage interconnect wiper. Maintain hardware 14 Chapter 4 Hardware maintenance ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 21
cm²) found close to the third pinchwheel from the right. See Clean the substrate-advance sensor window on page 18. 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 until it has cooled down, then unlock and - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 22
3. Use a clean, absorbent lint-free cloth to thoroughly wipe any wet ink from the cutter grove, cutter ramp and platen. 4. With a dry brush, remove dry, loosened ink deposits from the cutter groove and cutter ramp. A brush is available in the User Maintenance Kit. 5. With the same dry brush, remove - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 23
6. Slightly dampen the used cloth with 95% ethanol to wipe the remaining dry ink deposits from the platen. NOTE: 95% ethanol is not provided in the User Maintenance Kit. CAUTION: Ethanol is highly flammable. Observe the manufacturer's safety precautions. CAUTION: Do not use commercial cleaners or - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 24
the substrate-advance sensor window whenever you clean the print platen and if you are experiencing print quality issues. 1. Unload the substrate by using the front panel procedure. See the User's guide. 2. Turn off the printer and wait until it has cooled down. 18 Chapter 4 Hardware maintenance - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 25
printer and reloading the substrate. Lubricate the printhead carriage The printhead part of the printer for more than 7 minutes, it attempts to return to its home position on the right. 2. Take the bottle of oil from the User Maintenance Kit that is supplied with your printer. A replacement kit - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 26
Apply a few drops of oil directly to the slider rod on either side of the carriage. Press OK when this has been done. 6. Clean the substrate jam reflector using a lint-free cloth dampened with distilled water. If you find dried ink that you cannot remove, try using a lint-free cloth dampened with - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 27
2. Locate the small holes in the platen near some of the rollers. 3. Put three drops of oil into each hole in the platen. NOTE: Be careful not to spill oil onto the platen. Maintain hardware ENWW Lubricate the platen rollers 21 - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 28
, wipe the platen clean by using the cloth that was supplied with the User Maintenance Kit. 5. Close and lock the printer window. Maintain hardware Maintain the ink cartridges During the normal lifetime of a cartridge, no specific maintenance is required. You should replace a cartridge when it has - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 29
or on its side, first remove the waste management system (see Replace the ink maintenance kit on page 27 and Replace the printhead cleaning kit on page 35). 10. For correct environmental storage conditions, see the specifications in the User's guide. NOTE: If the printer or ink cartridges are moved - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 30
into the printer, because the connection might be coated with ink. NOTE: If necessary, store a partially-used ink cartridge in the same position as if it were inserted in the printer. Avoid using a partially-used cartridge that has been stored on its end. 24 Chapter 4 Hardware maintenance ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 31
ink cartridge. Insert an ink cartridge 1. Pick up the new ink cartridge and find the label that identifies the ink color. Hold the ink cartridge so that you can see the label at the top of the side that is facing you. 2. Check that the colored label above the empty slot in the printer matches - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 32
materials charges to service the printer for the particular failure or damage. ● If failure or damage to printheads, ink cartridges, or other ink supplies is attributable to the use of non-HP, expired or refilled ink cartridge, HP is not responsible for the cost of replacement. ● Print quality may - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 33
tube. 2. On the printer's front panel, select the icon, then select Replace ink mainten. kit. 3. Pull the bottom of the ink tube assembly out of the printhead cleaning container. 4. Cover the end of the old ink tube with the spare cap from the ink maintenance kit, to prevent ink from falling out of - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 34
ink funnel. 7. Pull the slider with one finger while removing the ink funnel with the other hand. NOTE: You are recommended to wear gloves. Maintain hardware 8. Remove the ink tube assembly support and the ink tube assembly. 9. Insert the new ink tube assembly. 28 Chapter 4 Hardware maintenance - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 35
while inserting the new ink funnel with the other hand. 11. Press the ink funnel into place. 12. Remove the cap from the bottom of the ink tube assembly. 13. Insert the bottom of the ink tube assembly into the printhead cleaning container. Maintain hardware ENWW Replace the ink maintenance kit 29 - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 36
filter and insert a new one. 16. Close the ink filter cover. 17. Close and lock the window. Maintain hardware Replace a printhead Remove a printhead 1. On the printer's front panel, select the icon, then select Replace printheads. 2. The carriage moves to the removal position. CAUTION: If the - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 37
open the window. 4. Locate the carriage on the right side of the printer. CAUTION: Avoid touching the printer's drying enclosure, which may be hot. 5. Pull up and release the latch on top of the carriage. 6. Lift up the cover. This provides access to the printheads. Maintain hardware ENWW Replace - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 38
the printhead. 9. Gently pull the blue handle upward until the printhead is released from the carriage. CAUTION: Do not pull abruptly. That action can damage the printhead. 10. The front-panel display identifies the missing printhead. Maintain hardware 32 Chapter 4 Hardware maintenance ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 39
down motion for about 15 seconds. NOTE: Be careful not to strike the printhead against anything while shaking it, because this could cause damage. 2. Remove the orange protective caps by pulling them down. 3. The printhead is designed to prevent you from accidentally inserting it into the wrong slot - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 40
the printheads have been inserted correctly and the printer has accepted them, the printer beeps. NOTE: If the printer does not beep when you insert the printhead and the Replace message appears on the front-panel display, you might need to reinsert the printhead. 34 Chapter 4 Hardware maintenance - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 41
if substrate is loaded. Replace the printhead cleaning kit The printhead cleaning kit contains the printhead cleaning cartridge, the ink funnel and the ink filter. When the front panel prompts you to replace the printhead cleaning kit, you should replace first the printhead cleaning cartridge, then - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 42
a printhead cleaning cartridge: ● Be careful not to get ink on your hands. Ink may be on, around and inside the replaced printhead cleaning cartridge. ● Always handle and store the replaced printhead cleaning cartridge upright to avoid spilling any ink. WARNING! Make sure that the printer wheels - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 43
into place. NOTE: The front panel will not show the new printhead cleaning cartridge until the door is closed. 9. When you have inserted the printhead cleaning cartridge into the printer, close the door. Maintain hardware 10. Unlock and open the window. ENWW Replace the printhead cleaning kit 37 - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 44
the ink funnel. 12. Pull the slider with one finger while removing the ink funnel with the other hand. NOTE: You are recommended to wear gloves. 13. Pull the slider with one finger while inserting the new ink funnel with the other hand. Maintain hardware 38 Chapter 4 Hardware maintenance ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 45
14. Press the ink funnel into place. 15. Close and lock the window. 16. Open the ink filter cover. 17. Remove the old ink filter and insert a new one. 18. Close the ink filter cover. Maintain hardware ENWW Replace the printhead cleaning kit 39 - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 46
. Insert the new printhead cleaning container. NOTE: Before it can resume printing, the printer needs all the ink cartridges, printheads and printhead cleaning cartridge to be installed, and the printer window and printhead cleaning cartridge door to be closed. Service maintenance During the life of - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 47
media presets Each supported substrate has its own characteristics. The printer changes the way it prints on each different substrate. The RIP requires a description of the requirements of each substrate. This description is called the "media preset". The media preset contains the ICC color profile - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 48
and color profile The correct printer settings for your substrate may be available from your RIP vendor or substrate vendor. If not, you can start by copying printer settings from a similar substrate of the same family. For more information on substrate families, see the User's guide. If you - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 49
may wrinkle on the platen, causing vertical banding, ink smears or substrate jams. Curing is needed to coalesce the latex, creating a polymeric film which acts as a protective layer, while at the same time removing the remaining co-solvents from the print. Curing is vital to ensure the durability - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 50
to the substrate at the printing zone helps to hold the substrate down on the print platen, keeping the distance to the printheads constant. The substrate may lift up off the platen and touch the printheads. This can smear the printed image, cause vertical banding, cause a substrate jam or even - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 51
the full width of the spindle. ● Turn off the substrate-advance sensor (OMAS) in the RIP if the substrate is transparent or dark, or if the printer recommends you to do so. ● Align the printheads. 2. Open the HP diagnostic chart in the RIP. The chart is stored in your printer, at http://ip-addr - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 52
not saved: the next job will use the settings in the media profile as usual. ● To change substrate advance calibration while printing (in case of banding): select the icon, then Image quality maintenance > Substrate advance calib > Adjust substrate advance. You can use the arrow keys to adjust the - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 53
the first 200-300 mm of the print. A longer time to start printing is required. Vertical banding or ink smears may occur. The base temperature that the substrate in the curing zone must reach before printing starts. This setting is determined by the printer. You cannot change it. This offset is - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 54
area for correct printing results with latex inks on a wide variety of substrates. The diagram below graphically represents the evolution of drying and curing temperatures during the various printing phases. NOTE: Target temperatures and time are not to scale. For the specific values used for - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 55
here, Yes: recommended NOTE: More specific settings for many substrates from different vendors are available in the HP Media Finder at http://www.hp.com/go/latexmediafinder/. Check the quantity of ink on the substrate Check that the ink quantities in your media preset are adequate. Look at the - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 56
● Horizontal bands. ● Coalescence, grain (can be caused by an excess of light ink). Try reducing the amount of ink in your RIP software, then reprint the chart and check again. You may have chosen a media preset that uses more ink than your substrate allows. Consult your RIP documentation to make - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 57
colors with the specific printheads, inks and substrate that you are using, and in your particular environmental conditions. After color calibration, you can expect to get identical prints from your printer on different occasions. Color calibration can be launched from your RIP software; see your - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 58
. In order to print accurate colors, it is necessary to convert the color values in your files to the color values that will produce the correct colors from your printer, your inks and your substrate. A color profile is a description of a printer, ink and substrate combination that contains all - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 59
within your RIP) that will help to optimize the printer output in terms of color gamut, ink usage and print quality. These are as follows: ● To achieve the best dark colors in vinyl gloss and other substrates, use as much black and as little composite (CMY) as possible when creating the ICC profile - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 60
in your RIP software. ● Make sure that you are using the correct ICC profile for your substrate and print-quality settings. ● Make sure that your environmental conditions (temperature, humidity) are in the recommended range. See the User's guide. ● Make sure that your ink cartridges have not - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 61
a printhead on page 30. What to do if problems persist If you still experience print-quality problems after applying the advice in this chapter, here are some additional tips to consider: ● Try selecting a higher print-quality option in your RIP software. ● Check that your printer firmware is - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 62
profile. Try the following suggestions. ◦ Reduce the ink quantity. ◦ Increase the number of passes. ◦ Modify your media preset as suggested in Color reproduction tricks on page 53. ● If bands affect all colors across the width of the printed image, the cause is probably a substrate advance problem - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 63
the printhead status plot on page 54). ● If banding occurs mostly in black areas, create a new color profile using pure black and not a mixture of other colors. See your RIP documentation. If the problem persists, call your service representative (see the User's guide). Adjust the substrate advance - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 64
◦ Align the printheads. See Align the printheads on page 9. ◦ Try the automatic correction for vertical banding provided by the RIP. Depending on your firmware version, this option may also be provided by the front panel: select the icon, then select Image quality maintenance > Enable vertical - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 65
Troubleshoot images ◦ If applicable, tell the RIP to group jobs together, so that printer temperatures remain more stable between jobs. ◦ Modify your media preset as suggested in Color reproduction tricks on page 53. ● Irregular or isolated vertical bands ◦ Increase the vacuum level in steps of 10 - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 66
whenever they enter the service station between passes. ● Use your RIP to add lateral color bars on the side of the plot that is close to the ink supplies. The color bars are designed to exercise all the printhead nozzles, to prevent the problem from occurring. NOTE: Not all RIPs provide this option - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 67
curing. ◦ Check whether there are fibers on the printheads. If the problem appears only at the beginning of the print, try the following suggestions. ● Disable the automatic cutter. ● Go to the front panel and select the icon, then Substrate handling options > Extra bottom margin. Set the margin - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 68
be used in other cases, when it could cause further problems. ● When the symptoms can be seen only at the start of the first print after the printer has been idle for some time (especially when the start of the print uses a lot of ink) Increase the warm-up drying temperature offset and the warm - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 69
inside the tile. To solve this problem, go to the front panel and select the icon, then Image quality maintenance > Enable extra PH cleaning. Remember to disable this option when you no longer need it, because it shortens the life of the printhead cleaning kit. ● Color variation tile to tile In - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 70
substrate 7 Troubleshoot substrate issues The substrate cannot be loaded successfully Here are some suggestions to try if you cannot load the substrate successfully. ● Reread the loading instructions in the User's guide, and make sure that you are following them. ● When loading a textile substrate - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 71
one of several error codes (see Front-panel error messages on page 80). If you are trying to load a very thin or very thick substrate, or a textile, remember to follow the special procedure described in the User's guide for loading such substrates. Check the substrate path ● This problem can occur - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 72
Troubleshoot substrate 3. Cut the substrate where it enters the printer, and rewind the input roll. 4. Wait for the printer to cool down to room temperature. 5. Try to move the printhead carriage out of the way. 6. Lift the substrate-adjustment lever as far up as it will go. 7. Carefully remove - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 73
be cleared by loading a rigid substrate type into the printer. 14. If you find that you have print-quality problems after a jam, try realigning the printheads. See Align the printheads on page 9. Avoiding substrate jams Substrate jams may be caused by loading the substrate with too much skew: do - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 74
from bow deformation during printing, as a result of which the print will appear curved. ● Self-adhesive vinyl substrates (some specific calendared vinyls only) ● Cellulose-based poster papers with no backing nor coating, including HP Photorealistic 68 Chapter 7 Troubleshoot substrate issues ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 75
> Disable take-up reel. icon, then Take- ● During double-sided printing. Take-up reel substrate jam If the substrate is severely damaged on the take-up reel spindle, do not use the printer's cutter to cut and remove the substrate. Instead, cut the substrate manually as close as possible to the - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 76
take-up reel wind-direction switch to the correct position. After 3 seconds, the printer recognizes the problem and interrupts the print job. See the first error listed in this table. The following graphic shows the take-up reel sensors and cable. 70 Chapter 7 Troubleshoot substrate issues ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 77
Troubleshoot substrate 1. Take-up reel sensor 2. Take-up reel sensor and cable housing unit ENWW Take-up reel does not wind 71 - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 78
oriented (compare with the others). 5. Check that you have closed and latched the printhead cover. Cannot insert the printhead cleaning cartridge Check that the printhead cleaning cartridge has the correct model number and is correctly oriented. 72 Chapter 8 Troubleshoot ink-system issues ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 79
and sharp edges in graphical elements. Your printer has an automatic printhead alignment process which runs whenever a printhead has been reseated or replaced. In the case of a substrate jam, if you have used a custom substrate, or if you are experiencing problems with color accuracy; you might need - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 80
going to use for printing. 2. Go to the front panel and select the icon, then select Image quality maintenance > Align printheads > Auto PH alignment. The printer verifies that a sufficient amount of substrate exists to perform printhead alignment. 74 Chapter 8 Troubleshoot ink-system issues ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 81
. Repeat the alignment process with the printer window closed. If the problem persists after following the recommended remedies, try replacing all of the printheads. If the problem persists after replacing the printheads, a failure in the scanning system may exist. Troubleshoot ink ENWW Align the - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 82
2. From the IPV4 Settings menu, select Manual settings > IP address. 3. Enter the IP address that you wish to use, and press the OK key when finished. Cannot access the Embedded Web Server If you have not done so already, please read the instructions in the User's guide. 1. Go to the front panel and - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 83
the RIP, printing will be relatively slow compared with draft-quality printing. ● Ensure that the substrate loaded in the printer belongs to the substrate family that appears on the front panel. ● Are the printheads in good condition? Printing time tends to increase when a printhead needs cleaning - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 84
-panel error messages on page 80. ● Your computer or printer stalls when transferring data. To solve a communication problem: ● Make sure that you have selected the correct printer in your RIP. ● Remember that large images usually require more time to receive, process, and print. Troubleshoot other - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 85
I/O timeout, which specifies the time that an idle connection is allowed to remain open when the printer is waiting for a remote computer. The default value is 30 seconds. If set to zero, squeak See Lubricate the platen rollers on page 20. Troubleshoot other ENWW The platen rollers squeak 79 - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 86
available in the printer. Load the internal print files through the Embedded Web Server. Cable is disconnected. Repair ink maintenance kit Clean OMAS or disable it at the RIP At the front panel, select the icon, then select Repair ink mainten. kit, and follow the instructions on the front panel - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 87
; if the problem persists, call your service representative. See When you need help on page 86. PDL Error: Ink system not ready Clean the printheads. See Clean the printheads on page 73. PDL Error: Job clipped The image is too large for the substrate or for the printer. Load larger substrate if - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 88
the problem persists, call your service representative. See When you need help on page 86. 21.2:10 Printhead cleaning cartridge error. Turn the printer off, remove the printhead cleaning cartridge and check whether the cloth can be manually advanced by using the white gears on its right-hand side - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 89
error messages (continued) Error code Recommendation 32:01.1 This error occurs when there is a small amount of substrate printed, less than 79 in (200 cm) long. Check that there is no obstacle between the take-up reel optical sensors; that the substrate is attached to the take-up reel spindle - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 90
RIP supports the printer and that the printer driver is installed in the RIP. ● Resubmit the file to the printer. ● Check that your printer firmware is up to date. See Firmware update on page 8. ● Check that you are using the latest version of your RIP. If the problem persists, call your service - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 91
that your printer firmware is up to date. See Firmware update on page 8. If the problem persists, call your service representative. See When you need help on page 86. 78.1:04 The printer has no substrate preset for this substrate. Follow the firmware upgrade procedure to update the printer with - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 92
Web support, software updates, and self-maintenance services. For more information about HP Customer Care, go to: http://www.hp.com/ go/graphic-arts/. Documentation The following documents are provided with your printer, and can also be downloaded from http://www.hp.com/go/L26500/manuals/. ● Site - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 93
to do before you call: ● Review the troubleshooting suggestions in this guide. ● Review your RIP's documentation, if relevant. ● Please have the following information available: ◦ The printer you are using: the product number, the serial number and the service ID NOTE: This information is available - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 94
(depends on RIP) Increase Possible side-effects Substrate jam, substrate damage, ink smears Slower printing Less durability (smudges), oily finish Substrate skew Substrate waste Coalescence, banding, less durability (smudges), oily finish Substrate jam, substrate damage, ink smears Reduced color - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 95
76 L labels, warning 4 loading substrate problems 64 lubricate the carriage 19 lubricating the platen rollers 20 M maintenance, service 40 manuals 86 media presets downloading 41 move the printer 22 N non-HP ink cartridges 26 P porosity check 10 print-quality problems black areas look hazy 60 ENWW - HP Designjet L26500 | HP Designjet L26500 printer series - Maintenance and troub - Page 96
30 reseat, reseat 73 status 6 printhead cleaning cartridge cannot insert 72 printhead cleaning kit replace 35 printhead status plot 54 printing faster 51 R refilled ink cartridges 26 roller lubrication 20 S safety labels 4 safety precautions 1 service information print 87 service maintenance 40
DESIGNJET L26500 printer series
Maintenance and troubleshooting guide