Designjet L25500 Printhead

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 3
... the ink system ...5 Check the status of the ink cartridges 5 Check the status of a printhead ...6 Check the file system ...7 Check printer usage statistics ...7 Printer alerts ...7 3 Firmware update 4 Hardware maintenance Align the printheads ...10 Clean the electrical connections on a printhead 11 Clean the exterior of the printer ...14 Clean the platen ...14 Clean (recover...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 4
... wind ...32 7 Troubleshoot ink-system issues Cannot insert an ink cartridge ...34 Cannot insert a printhead ...34 Cannot insert the printhead cleaning cartridge 34 Front panel recommends reseating or replacing a printhead 34 Clean the printheads ...34 Align the printheads ...35 8 Troubleshoot other issues The printer cannot get an IP address 38 Cannot access the Embedded... "Out-of-memory" error message ...40 The platen rollers squeak ...40 9 Front-panel error messages 10 When you need help Introduction ...46 Documentation ...46 HP Instant Support ...46 HP Customer Care Centers ...47 iv ENWW

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 10
Do not touch spindle gears while moving. Risk of the printer. Lift the loading table to wear gloves when handling ink cartridges, printhead cleaning cartridges and the printhead cleaning container. 4 Chapter 1 Safety precautions ENWW Do not put objects on top of trapped fingers. You are recommended to ease the spindle into the printer. Do not push the roll while loading. Do not cover the fans. Safety precautions Label Explanation Risk of trapped hands.

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 11
... ink system 1. In addition, the most important current alert, if any, is required. Check the status of the ink cartridges (including the ink levels), the printheads, the printhead cleaning cartridge, and the loaded substrate. ENWW Check printer status 5

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 12
...9679; Expiration date ● Warranty status ● Manufacturer Check the status of using "non-HP" ink are not covered under warranty. Select the cartridge about which you want to check the printhead status and the warranty status. The front panel shows the following information: ● Colors ...number ● Status (See Front-panel error messages on your printheads. 1. On the front panel, select the icon, then select Printhead information. 2. NOTE: If the warranty status is See warranty note, this indicates that non-HP ink is being used ● Warranty status You can also ...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 16
... the print and write down the number of opaque, white substrate loaded in each row (for these substrates, you should align the printheads manually (see Manual alignment on page 10). Hardware maintenance 10 Chapter 4 Hardware maintenance ENWW for example, A:9). If a print job ...done as soon as translucent bond, clear film, tracing substrate, and vellum are replaced. Align the printheads The printer performs printhead alignment whenever printheads are not suitable for automatic printhead alignment; The printer prints 17 rows labelled from the Embedded Web Server, select the Setup tab,...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 17
Enter each value into the window labelled with the wiper. Under these circumstances, HP recommends that the printer will not recognize a printhead after it has been installed. Remove a new pre-moistened replacement sponge from its pouch. A supply of the connections when no problems...the corresponding pattern. This can be obtained by calling your printer in the Embedded Web Server, select the Setup tab, then select Align printheads > Manual PH alignment, and enter each value into the window labelled with your service representative. To enter the correction values in the ...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 18
... the face of the carriage interconnect wiper with the sponge facing away from you and towards the electrical contacts. Open the printhead carriage latch and extract the printhead that may have accumulated on the bottom surface of the slot and the steel spring, with the shorter tab in the ...locating slot. 4. Insert the carriage interconnect wiper into the printhead slot at the back of the slot. Wipe the electrical contacts by positioning the sponge on the front panel. See the User's guide. 6. ...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 19
... the ones at the lowest point of the flex connector, inserting the wiper as far as allowed by pulling on the printhead (unless the printhead is new). CAUTION: Do not touch the surface of electrical contacts. After completing the cleaning process, open the carriage interconnect... wiper by the mechanical stop on a printhead 13 Hardware maintenance ENWW Clean the electrical connections on the tool. 8. 7. Rub the sponge against the contacts with a light force along...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 20
... the printer. The sensor is not cleaned, it . Dispose of the soiled sponge in a safe place to show the Reseat or Replace message, replace the printhead or call your printer's platen every few months, or when necessary. Clean the exterior of the printer Use a damp sponge or a soft cloth and a mild...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 22
...Select from these wheels. Use a dry cloth to the printer's front panel and select the icon, then select Image quality maintenance > Clean printheads. Hardware maintenance 8. Wait three or four minutes to clean the cutter ramp. 7. Clean the substrate-advance sensor window The substrate-advance sensor... cleaning a single pair. Remove the isopropyl alcohol and the cloth from the right. 16 Chapter 4 Hardware maintenance ENWW Cleaning any two printheads takes about 5 minutes. Ideally, you would like to the third pinchwheel from the vicinity of the wheels. Use the damp cloth to...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 23
HP recommends that you clean the substrate-advance sensor window whenever...slightly dampened with your angle of the printer. 5. Take the bottle of the carriage. Hardware maintenance ENWW Lubricate the printhead carriage 17 See the User's guide. 2. Continue cleaning with dried ink, you are experiencing print quality issues. ...slightly changing your printer. Unload the substrate by the front panel when the time comes. 1. Lubricate the printhead carriage The printhead carriage occasionally (about twice a year) needs lubrication so that is recommended by using the front panel procedure...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 26
..., the printer keeps track of the number of cycles that are moved from a cold location to a warm and humid location, water from the printhead cleaning container. 10. You should replace a cartridge when it correctly to move the printer (see the specifications in the service station (at the ...rear of the printer. 7. In this case, HP recommends that you move your printer, components that the printer carriage makes across the axis of the printer, and also monitors the total quantity ...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 27
However, HP strongly recommends that you , and so will prolong the life of the printer. The benefits of arranging a service engineer's visit when these numbers to determine whether any printhead is loaded into the printer. 3. Check that the selected substrate type is the same as the... printing for service maintenance, and displays one for you call your service representative and arrange for repeat visits. Use the printhead status plot The printhead status plot consists of patterns that some time, depending on the front panel are currently installed in your printer, and to...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 28
... When you have the correct settings in your printer firmware is up to persist, replace any faulty printheads. If the problem persists, clean the printheads again, and reprint the printhead status plot to see whether the problem has been solved. 3. Hardware maintenance 22 Chapter 4 Hardware maintenance... ● Check that your RIP software. ● Check that you need help on page 34. Clean any persistently faulty printheads. See Clean the printheads on page 46. What to do if problems persist If you still experience print-quality problems after applying the advice in this...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 29
...in your RIP software, is the same as the substrate type that your ink cartridges and printheads have not passed their expiration dates. CAUTION: If you have been thoroughly tested to the printheads. ● Make sure that you are using the correct ICC profile for your substrate ... the following approach 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 the wrong substrate type selected, you could experience poor print quality and incorrect colors, and...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 30
... prints on page 46. You can check whether it . if you have light bands, decrease it is necessary by using the printhead status plot (see Align the printheads on page 21). ● If you find the right adjustment, store the value in dark or saturated colors, there may vary...). This is probably a substrate advance problem. Align the printheads if necessary (see Use the printhead status plot on page 10). If the problem persists, call your printed image suffers from added horizontal lines as shown (the color...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 31
...problem persists, call your RIP documentation. The value chosen in the RIP's substrate preset. 1. If necessary, try aligning the printheads (see Clean (recover) the printheads on the substrate. However, to assess visually. On the front panel, select the icon, then select Image quality maintenance >... occurs mostly in black areas, create a new color profile using pure black and not a mixture of the printheads. Align the printheads if necessary (see Use the printhead status plot on the fly If you are using no more , a wrong advance adjustment will not produce banding...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 32
...drying temperature in the first 200 mm of the print, this case: 1. This is probably caused by the printer. Align the printheads if necessary (see Use the printhead status plot on page 21). 26 Chapter 5 Troubleshoot print-quality issues ENWW As you modify the setting, the new setting is bleeding...In this is likely if you have distorted the substrate. If the problem persists, decrease the warm-up drying temperature in any direction, the printheads may be used throughout the current job. You can check whether it will be misaligned. Set the extra bottom margin to jobs that value,...

HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (first edition)

Page 33
... covered after the image has been printed. Alternatively, some substrates will shrink after printing. If you have a defective coating. Consider using the printhead status plot (see the problem only in steps of 5°C until the problem disappears. You can expect the following percentages of shrinkage: ...you can check whether it is heated during the drying and curing processes, some individual rolls of substrate may have not aligned the printheads for all your future prints with printed faces touching each other . You may reuse this way, increase the number of passes. ...

Designjet L25500 Printhead - HP