HP DesignJet T790, Z2600 Series Service Manual.Hp designjet t790 service manual download

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This document contains proprietary information that is protected by copyright. All rights are /14546.txt. Nopart of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company.

Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

The procedures described inthis manual are to be performed by HP-qualified service personnel only. Serious shock hazard leading to death or injury may result if you do not take the following precautions:.

Refer to the beginning of Chapter 4 Introduction on page of this manual, for precautions you should take to prevent damage to the product circuits from electrostatic discharge. General definitions of safety symbols are given immediately after the table of contents.

The Warning symbol calls attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury. Do not proceedbeyonda Warning symbol until the indicated conditions are fully understood and met. The Caution symbol calls attention to an operating procedure, practice, or the like, which, if not correctly performed or adhered to,could resultin damage toor destruction of part or all of the product.

Do not proceed beyond a Caution symbol until the indicated conditions are fully understood and met. This Service Manual contains information windows 10 s mode iso to test, calibrate, maintain and service the following:. When information is only applicable to a specific product, the text will indicate which product it is applicable to.

Нажмите для продолжения are three main areas where this might occur, and at each occurrence an icon will also be shown:. For information about using these products, refer to the corresponding User and Quick Reference Guides. The procedures described in this Service Manual are to be performed byHP Certified service personnel only.

Part Numbers for product service parts are located in Chapter 7 Parts and Diagrams on page Using the Touch Control Panel Service Key Combinations Product Troubleshooting trees MFP Paper-handling troubleshooting Ink-supplies troubleshooting Connectivity troubleshooting Product подробнее на этой странице What to do if the Touch Control Panel is blank Continuable and Non-Continuable Error Codes System Error Code Brief Descriptions System Hp designjet t790 service manual download Codes—Full Descriptions Appendix A: How to troubleshoot SE Appendix C: Obtaining the product log and the diagnostics package Diagnostic Tests and Utilities Service Utilities Service Calibrations Product Моему ford transit mk8 workshop manual download Center Covers Front 1 of Center Covers Front 2 of Center Covers Front 3 of Roll Covers Center Covers Rear Right Cover Left Cover Right Hand Hp designjet t790 service manual download Left Hand Assemblies Carriage Assembly Scan-Axis Assemblies Paper Path Assemblies Front Paper Path Assemblies Rear Roll Supports Scanner Parts 1 of Scanner Parts 2 of Scanner Parts 3 of Tools Miscellaneous Parts Customer Self Repair parts Service Calibration Guide to Removal and Installation Belt Assembly Bin Assembly Bi-stable Springs Bumpers, Left and Right Engine Cables Kit Interconnect Cables Kit Carriage hp designjet t790 service manual download Cutter Assembly Carriage Bushing, Rear Carriage Cover and Carriage Latch Carriage Rail Oiler Carriage PCA Center Support Scanner Bumper MFP only Front Cover Front Top Cover Drop Detector EE Box Encoder Disk and Encoder Sensor Encoder Strip Encoder Strip, spring and attachment nut Freewheel Assembly Right Front Trim Full Bleed Foam Hard Disk Drive Left Ink Cartridge Door Right Ink Cartridge Door Left Ink Supply Station Ink Supply Tubes Support Rail Interconnect PCA Left Front Trim Line Sensor Media Advance Drive Media Lever Media Lever Position Hp designjet t790 service manual download Media Output Assembly Out-of-paper Sensor Left Panel Pinch Arm Assembly Pinchwheel Assembly Print Zone Overdrive Power Supply Unit Real-time Clock Battery

 

HP DesignJet T, Z Series Service Manual – .Hp designjet t790 service manual download



 

Check the type of paper that is being used since the Line sensor may have problems detecting transparent paper or some types of Non-HP paper. Try loading white HP paper in to the product and check that the Line sensor detects it.

The Line Sensor is not calibrated correctly. Perform the Line Sensor Calibration. See Line Sensor Calibration on page The Line Sensor is damaged or faulty. Replace the Line Sensor. See Line Sensor on page The failure modes "paper jam" and "head crash" ar e grouped together because in many cases a paper jam causes the paper to lift up into the Carriage path and cause a Printhead crash, thus causing many paper jam failures to be reported as head crashes.

Did the paper jam occur when loading paper? Clear the paper path. NOTE: When clearing a paper jam, sometimes paper is stuck in the paper path. To clear this, you must lift the Media Lever and insert thicker paper into the paper path to push out the paper that is still stuck there. Is the customer using non-HP paper? If the paper is not HP approved, advise the customer to use HP paper and check to see whether the problem is now solved. If while feeding paper into the Scanner a jam occurs, use the eject button.

Open the CIS and clear the area of any paper. There are three plastic parts that could break during product installation and need replacing. Check the parts table and graphics in Parts and Diagrams to identify what service parts you must order. See Product Support on page Replace the component.

See Bin Assembly on page The Touch Control Panel of the product indicates that paper is misaligned or incorrectly positioned. The paper should load over the roll toward you. The right-hand edge must be aligned with the blue line on the. If the Right Roll. Support is misaligned or not properly attached to the product, the Rewinder will not function properly.

See Turn Drive Roller. While attempting to load roll media, if the Touch Control Panel prompts you to remove paper, although. The sheet must be loaded with the right-hand edge against the white line on the upper roll cover. If hand-cut paper is used, theedges may not form a ri ght-angle or they may be rough.

If possible, hand-. Only purchased sheet paper should be used in the product. See Turn Drive Roller on page For each of the ink colors used in the product, there are two components, the Printhead and Ink Cartridge.

These components are called Ink Supplies. The product's six Ink Cartridges provide matte black, magenta, yeloow, cyan, gray and photo black ink tothePrintheads.

The color Ink Cartridgessuppliedwi ththe product havea capacity of 69ml but optional ml are also available. All these Ink cartridges are physically the same size. Only the internal capacity varies. The Ink Cartridges for the T product series require no maintenance or cleaning. As long as each Ink Cartridge is inserted correctly into its slot, the ink will flow to the Printheads. Because the Printheads control the amount of ink transferred to the page, you will continue to see high-quality printing results even when the ink levels are getting low.

Table Available Ink Cartridges. The Printheads are extremely durable and do not need to be replaced every time an Ink Cartridge is replaced. They are independent of the Ink Cartridges and will continue giving excellent image-quality results even if the Ink Cartridges are low on ink.

Table Available Printheads. For optimum results from the product and modular ink delivery system always follow these guidelines when handling the ink supplies:. The Printheads are then stored correctly which prevents them from drying out. They should only be removed when the product is ready for you to replace them.

The Touch Control Panel will guide you through the removal and installation procedure. NOTE: Do not touch, wipe or attempt to clean the pr inthead nozzles. This can damage the printhead. In particular the Printhead, which is a high precision device and must be handled carefully.

Always set them down gently. When to change the ink supplies is mostly determined by you with guidance from the Touch Control Panel.

In conjunction with the messages displayed in the Touch Control Panel and the message explanations in this chapter, you will be able to choose for yourself when is the right time to change the ink supplies. The product will also display the in k level and will tell you whenthe ink supply is low on ink. This means you have constantly updated information about the ink supplies. These bars represent how much ink is remaining in the Ink Cartridges: as ink is used up the bars get shorter in length.

To view the ink levels perform the following steps:. Press on the Information icon. Press on the Ink Menu icon. Each of the Ink Cartrid ges is displayed as a bar indicating the level of ink remaining.

To get further information of an Ink Cartridge, pre ss on the corresponding bar that you want to view. In general the higher frequency of change is because Matte Black ink is the one that is used for lines and black objects in technical papers bond, coated, HW coated, natural tracing paper, etc.

One thing that users may notice is that Gray ink is used in hig her quantities than Cyan, Magenta and Yellow inks. This happens because of the following reasons:. Gray areas which are very typical in technical drawings can now be printed by using only Gray ink. In the past, these areas had to be printed by combining Cyan, Magenta and Yellow inks. This means that Gray ink is used more frequently than the rest ofthe inks C, M, Y whichare now used less frequently, so the difference in consumption is noticeable.

However overall the T Series products will actually need to use in total less ink to print gray areas than previous Designjet products. Soft colors can now be printed by combining C, M and Y inks with Gray. The addition of Gray ink softens the color, improving transition areas. It also allows printing soft colors by using less C, M and Y. These two types of contents are very typi cal and make the consumption of Gray to increase and the consumption of C, M and Y to decrease.

NOTE: Do not try to remove an ink cartridge while printing. Remove an ink cartridge only if you are ready to insert another one. Make sure the product wheels are locked the brake lever is pressed down to prevent the product from moving. To change an ink cartridge there are two methods, the first is shown below by using the ink tab, the second method is to access the main menu option refer to the User's Guide for further details. Press on the Ink Menu icon and the following screen is displayed.

Press on the Replace ink cartridge tab. The following screen is displayed, press OK to continue. Open the relevant Ink Cartridge cover for the Ink Cartridge you want to replace. Pull the required Ink Cartridge straight up to remove it from the product. Before removing the cartridge from its wrapping, shake it vigorously.

Unwrap the new ink cartridge, find the label identifyi ng the ink color. Check that the letter or letters marking the empty slot, matches the letter or letters on the cartridge label. Insert the ink cartridge into its slot. Push the cartridge into the slot un til it snaps into position.

You will hear abeep and see confirmation that the cartridge has been inserted. When all cartridges have been inserted, close the cover. Press on the Printhead Menu icon and the following screen is displayed, press on the printhead that you want information on.

The Touch Control Panel displays information on the selected Printhead. To change a Printhead there are two methods, the first is shown below by using the printhead tab, the second method is to access the main menu option refer to the User's Guide for further details. Press on the Printhead Menu icon and the following screen is displayed. Press on the Replace Printhead tab.

A screen is displayed, showing an animation of how to install the printhead s. The product moves the Carriage to the correct position to replace Printheads. NOTE: If the carriage is left in the removal position for more than three minutes without inserting or removing any printheads, it will try to move back to its normal position at the right-hand end.

Locate the carriage on the right side of the product. Pull the blue handle up and toward you to release the Carriage Cover. This gives you access to the printheads. Using the blue handle, use steady force to disengage the printhead.

Pull the blue handle upward until the printhead is released from the carriage. The Touch Control Panel display identifies the missing printhead. To insert a new printhead first remove the orange protective caps. Insert the new printhead into its correct slot in the carriage. It may be damaged if you insert it too fast, or at an angle, or if you rotate it as you insert it.

You should hear a beep and see confirmation on the Touch Control Panel display that the printhead has been inserted. Insert all other printheads that need to be installed, and close the carriage lid. Ensure the end of the blue handle catches the wire loop on the near side of the carriage. When all the printheads have been inserted correctly and are accepted by the product, the product beeps.

NOTE: If the product does not beep when you insert the printhead and the Replace message appears on the Touch Control Panel display, the printhead may need to be reinserted. The Touch Control Panel display confirms that all printheads are correctly inserted. The product starts checking and preparing the printheads. Th e default routine process, when all printheads are changed, takes 10 minutes. If the product finds problems in preparing the printheads, it takes longer, upto45minutes.

For a single printhead insertion, thetimes vary between 2 and 40minutes. After all printheads are checked and prepared, the printhead realignment procedure runs automatically if paper is loaded. The product will start checking and preparing the printheads. The default routine process, when all printheads are changed, takes 25 minutes.

If the product finds problems in preparing the printheads, it will take longer, up to 55 minutes. For a single printhead insertion, the times vary between 15 and 35 minutes. After all printheads are checked and prepared, for the printhead realignment. Precise alignment between printheads is essential for accurate colors, smooth color transitions, and sharp edges in graphical elements. Your product has an automatic printhead alignment process which runs whenever a printhead has been accessed or replaced.

In cases where the paper has jammed, you have used a custom paper, or are experiencing problems with color accuracy you may need to align the printheads. If the paper has jammed, it is recommended that you reinsert the printheads and initiate the realignment procedure with the Image Quality Maintenance menu.

NOTE: Do not use transparent and semi-transparent paper to align the printheads. Photo paper is recommended for the best quality. If the realignment process is running and the wrong paper is loaded, press the Cancel button on theTouch Control Panel.

Donotprint if the realignment processhasbeencanceled. Youcanrestart the alignment with the Image Quality Maintenance menu procedure. Load the paper you wish to use. You can use a roll that is at least mm 24 in wide or a cut sheet that is A2 landscape or larger. Remove and re-insert all the printheads, see Remove a printhead and Insert a printhead. This will start the printhead alignment procedure.

The process will take about six minutes. Wait until the Touch Control Panel display shows the process complete before using the product. Do not use transparent and semi-transparent paper to align the printheads. Photo paper is recommended for the best results; plain, bond and thin coated papers provide acceptable but marginal results.

Press the Menu button to access the main menu and select the Image Quality Maintenance menu icon. Select Alignprintheads.

The productwill check to see ifit has enoughpaper to ru n the realignment. The realignment procedure will now be performed and the realignment pattern will be printed. The process will take about five minutes. This means that the alignment has not completed successfully.

The problem may be due to:. If the problem persists after using valid paper, cleaning the printheads, and keeping the cover closed, there may be a failure in the scanning system needing reparation or the printheads, although clean,may not work and need to be replaced.

The Low message is an early warning sign and it is advisable that new supplies should. The amount of ink remaining in the Ink Cartridge. When the Very Low message is displayed, overnight printing should not be attempted. Changing the Ink Cartridge is strongly reco mmended to prevent the product from stopping. The product will stop and will not be able to continue printing until a new Ink Cartridge has. If this occurs halfway through printing an image, you should check the. It would be recommended.

You are recommended to test the printheads individually to find the failing printhead. Remove all the printheads and insert them alone one by one, Closing the latch and the. The Touch Control Panel display will indicate thefailing. Panel, but instead of removing the printhead, simply press the OK button on the Touch. You are recommended to remove the printhead and then reinsert it; if that fails, clean the. The printhead is not a suitable type for use in printing for instance, a setup printhead.

The following table describes the Printhead Error Codes. Refer to the above descriptions of the status messages for the appropriate action. Most of the problems that you could encounter when working with the ink supplies are solved with guidance from the Touch Control Panel. Ensure that you have the correct HP no. Ensure that the Ink Cartridge is the correct color for that slot. Ensure that the Ink Cartridge is the correct orientation, with the color coded label at the top.

Ensure that the printhead is the correct color for that slot. Ensure that the printhead is in the correct orientation. Ensure that the protective cap is removed from the Printhead. From the Touch Control Panel, turn the power off then on. Check the Touch Control Panel display message, if it shows the ready message, the product is ready to print. If the problem remains continue with the next step. Clean the electrical connections on the backside of the printhead with a lint-free cloth.

You can carefully use a mild rubbing alcohol if moisture is needed to remove residue. Do not use water. You can use the Flex Contacts Cleaning Tool. This is a delicate process and may damage the printhead.

Do not touch the nozzles on the bottom side of the printhead, especially not with any alcohol. Check the Touch Control Panel display message. If the problem remains, try a new printhead. As long as the product is kept turned on, an autom atic cleaning is performed periodically. This ensures there is fresh ink in the nozzles and prevents nozzle clogs, which ensures color accuracy.

For image quality issues, you can also refer to the Maintenance and Troubleshooting document. To clean the printheads, press the Menu key to return to the main menu and select the Image Quality Maintenance menu icon, then Clean printheads. If you have gone through the Image Quality Diagnostic print process, you knowwhich colors are failing. Select tothe pair of printheadswhich contain thefailing colors. If you are not sure which colors to clean, you can also select to clean all printheads.

Cleaning all printheads takes about nine minutes. Cleaning a single pair of printheads takes about six minutes. Cleaning all printheads uses more ink than cleaning a single pair.

If you have cleaned the printheads using the Clean printheads procedure from the Touch Control Panel and are still experiencing image quality problems, you can try cleaning the printhead nozzles manually using the following procedure.

NOTE: This is a delicate process and may damage the printhead. Do not touch the electrical connections on the backside of the printhead. You must remove the printhead see Changing a Printhead on page 20 and using a cotton swab and a little de-ionized, distilled water, or Carriage Interconnect Wiper clean the bottom of the printhead until the residue is removed.

All theinstructionsneeded to use the Flex Contacts Cleaning Tool will be packaged with the kit. Whenever you replace the Printhead, check the empty slots to see if they need cleaning. In extreme circumstances, when a Printhead is inserted, it is possible that the product will not recognize it due to the build-up of ink on the electrical connection between the Printhead and the Carriage Assembly.

Included with the product is a Flex Contacts Cleaning Tool. This tool is provided in a separate package. It also contains replacement sponges and an instruction sheet. This tool should be used for cleaning the electrical interconnects of both the Carriage Assembly and the Printhead.

NOTE: Do not touch, wipe or attempt to clean the printhead nozzles. This can damage the printhead and reduce print quality. Follow the advice given in the appropriate section below. Perform the following procedure, checking the connectivity carefully after each step to see whether the problem has been fixed. Disconnect the LAN cable at both the remote end and the product end of the cable.

Reconnect using the LAN cable. Use a different LAN cable if possible. Try connecting to a different Ethernet socket in your network, router or switch. If possible, try to reset the Ethernet switch or router. This may involve turning it off and on again. Adjust the configuration settings. Restart the product and wait 5 minutes. Compare the configuration information printed out before and after restoring to factory default settings.

If the printer has difficulty in connecting to the Internet, it will display an error message, which enables you to launch a diagnostic that will automatically detect possible issues in your networking and Internet access. You can choose to perform all the tests or individual tests. The following options are available:. If any test fails, the printer describes the problem and recommends how to solve it. If the product experiences problems with the USB connection the computer does not detect the product when the USB cable is plugged in or with USB performance throughput is slow then try the following checks.

Do not ignore a warning message on your computer such as:. Cables close to the 5 m limit often cause problems. If possible, try using a different computer. Check that connectivity is not disabled,. Return to the main menu. A USB host port is available in the formatter to support new features that may become available in the future.

There are two different accessories that can be connected into the USB Host port:. When this accessory is connected the product will keep all user data stored in the external hard disk only, which can be removed from the product and stored separately for confidentiality or security reasons.

The diagnostic package contains useful information from the product to help you to find the cause of a problem. See Appendix C: Obtaining the product log and the diagnostics package. In this case only a valid. FMW firmware package may be stored in the drive, and it must be in the root folder, not in a sub folder. The USB host port can be used at any time, regardless of what procedure the printer is performing.

When it is not possible to perform a firmware upgrade using the normal procedures for instance, in case of a System Error and the Embedded Web Server is unavailable , it is possible to perform an emergency firmware upgrade using a USB flash drive. When the product is started for the firsttime, a wizard will start. The last step of the wizard asks het user to configure the automatic firmware update settings, and then and there the user is forced to check if there is a new version of the firmware available.

In certain circumstances the printer may require a firmware upgrade before it can initialize completely. When this occurs there will be a USB flash drive in the shipping box with.

When this occurs there will be a USB flash drive in the shipping box with the product. Follow the instructions that come with the flash drive. No other uses of the USB flash drive are supported. Load the firmware onto any empty flash drive and insert the flash drive into one of the USB ports of the product. The product will recognize the firmware on the flash drive and display the install procedure on the Touch Control Panel.

System error codes are generally used to report internal system errors. The following pages contain a list of system error codes and their respective descriptions and recommended corrective actions.

Try only one recommended action at a time, in the order that they appear, and check whether the error code has disappeared. When reporting the error, have the following information ready:. Make sure you take time to gather all of this information. NOTE: The file and line fields are important to identify the source of the problem because the same internal Error Code can be reported in different files and line. TIP: When investigatinga system error, you arerecomme nded to use thediagnostic packageto further understand the problem.

To obtain the diagnostic package which takes a few minutes , see Appendix C: Obtaining the product log and the diagnostics package on page It is possible to view all the activities the printer performs collected in a log file. To further understand a system error code, it is useful to have a log showing what the printer was doing at the time when the system error occurred. To get product logs, see Appendix C: Obtaining the product log and the diagnostics package on page The LEDs of the formatter visible through the cover and the power supply can help you troubleshoot a problem if the Touch Control Panel is blank.

Switch the power off from the back of the product and disconnect the power cord. Reconnect the power cord and power on the product. Check that the connections between the Formatter and the Engine PCA are not damaged and are correctly connected.

Use the following table to interpret the LEDs and find the source of the problem. Remember that you should read these LEDs when you push the Power button. Some combinations may require the replacement of two or more components. In this case, always replace one component at a time. Test the product to see if the problem has disappeared check the LEDs again.

If the same LED sequence continues, replace the next component indicated in the table. Power supply, see Power Supply Unit on page Formatter, see Formatter on page PCA on page Panel, see Touch Control Panel on page Replace the Touch Control Panel on page If the printer freezes while initializing, the following explanation can help you understand at which point of the initialization process it stopped and what could be the cause of the problem:.

If the communication is lost for more than 24 seconds, the system error might display. In this case, perform the troubleshooting procedure for If the printer freezes between these two percentages, replace the Touch Control Panel see Touch Control Panel on page From this point on, other parts of the printer besides the Touch Control Panel could be causing the problem.

If the connection fails it might show system error but it might be hidden and just freeze. NVM is also initialized at this point.

Usage counters are initialized. Start the printer without printheads, supplies and external connections. Parts to be replaced are multiple at this point, please check what the printer is doing just before it freezes to get more information about what could be failing. If the Error Code reappears, then the product requires an on-site visit in order to resolve the problem. Welcome to ManualMachine.

We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions. Enter a new password. Designjet T HP Designjet T service manual Download for 1. Edition, February The information contained in this document issubject to change without notice.

Electrostatic Discharge Refer to the beginning of Chapter 4 Introduction on page of this manual, for precautions you should take to prevent damage to the product circuits from electrostatic discharge. Safety Symbols General definitions of safety symbols are given immediately after the table of contents. CAUTION The Caution symbol calls attention to an operating procedure, practice, or the like, which, if not correctly performed or adhered to,could resultin damage toor destruction of part or all of the product.

Graells, Sant Cugat del Valles Spain. ENWW iii. B When information is only applicable to a specific product, the text will indicate which product it is applicable to. ENWW v. ENWW vii. ENWW ix. Thisdoe snotdiscard any changes made inthe current screen. Any warranty support needed would be completed by the reseller that sold the product. The serial number provided does not match the previously selected product.

It matches the product:. Please return to the product information page and verify the numbers provided or try again later. Errors can be displayed in many formats. Please include all extra characters, such as hyphens or colons or periods as they appear within the number.

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2 System Error Codes.Hp designjet t790 service manual download



   

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Serial number:. Product number:. Warranty end date:. Warranty removed from product: This product was designated to be returned to HP. Thus, the warranty has been removed from this product. Product sold by third party: This product was sold by a third party. Any warranty support needed would be completed by the third party that sold the product. Product has been exchanged: This product has been exchanged for a new or refurbished product.

Please use the product number and serial numbers of the new product to validate warranty status. Product sold without warranty: This product was sold by a reseller. Any warranty support needed would be completed by the reseller that sold the product. The serial number provided does not match the previously selected product. It matches the product:. Please return to the product information page and verify the numbers provided or try again later.

Errors can be displayed in many formats. Please include all extra characters, such as hyphens or colons or periods as they appear within the number.

Possible error formats where 'x' could represent a letter or number : xx. One or more of the values entered is not permitted.

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HP Customer Support. Select your model. How does HP install software and gather data? Search all support. Search help. Tips for better search results Ensure correct spelling and spacing - Examples: "paper jam" Use product model name: - Examples: laserjet pro p, DeskJet For HP products a product number.

Loading Results. Already have an HP account? Select from the products you own. Choose a different product. Warranty status: Unspecified - Check warranty status Manufacturer warranty has expired - See details Covered under Manufacturer warranty Covered under Extended warranty , months remaining month remaining days remaining day remaining - See details Serial number: Product number: Warranty end date:. Warranty status types. Warranty types.

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