Designjet 800ps service manual




















The initial startup assumes that the Start-up Printheads are installed, but the Printer cannot detect them because the Printer can only detect normal Printheads.

If normal Printheads are installed during the initial startup, the Printer will request the User to remove them and check if they really have been removed. It will then request the User to install the Start-up Printheads. Also the Printer will request the User to install the Ink Cartridges if they have not been installed already. If the Ink Cartridges contain less than 20cc of ink the Ink Cartridges are encoded with the quantity of ink remaining they will be rejected.

Normally with a new Printer this should not be a problem since the Printer comes with Ink Cartridges that are full, but there maybe cases when the Ink Supply Tubes need to be replaced, in which case half empty Ink Cartridges may be used. Once the Printer assumes that the Start-up Printheads and Ink Cartridges with enough ink are installed, the priming process will begin.

If the priming process is completed successfully, the Printer will directly proceed to the Printhead replacement procedure in order to replace the used Start-up Printheads with normal Printheads. The Ink Supply Tubes were not completely empty - This is the most common cause especially if the Printer has been powered ON and OFF several times with the Ink Cartridges installed since the initialization process performs at least one pumping cycle.

The Printer detects that one or more of the tubes cannot be detected as filled with ink - The most likely cause for this problem is Ink Cartridges with a faulty valve. Even if the priming process fails, the Printer will try to verify whether the priming process has been completed by moving the Carriage to the access position and you will see the following. Check if there is ink inside printhead windows. Open the Carriage Cover and check if there is ink inside the Start-up Printheads.

On the Front Panel you will see the following question and you will need to select the answer depending on whether the Start-up Printheads were filled with ink or not:. If there is ink in all of the Start-up printheads, the Printer considers that the priming procedure has been completed successfully and will proceed to the Printhead replacement process. If you select NOT all with ink the Printer will react differently depending on the source of the problem:.

If you need to reseat the Start-up Printheads, make sure you reinsert them in the same color slot in the Carriage. The Printer will request you to reseat the Start-up Printheads or in the case of missing Start-up Printheads you should install them or order new ones and then retry the priming process if the priming process fails 3 times because of the same problem, it will display a System Error.

In this situation, the problem could be the following:. To check this, perform the Ink Supply Station test Page The last 2 cases will be more obvious because there will be a lot of ink in the Printer around 20 cc of ink. For more information on this problem, refer to System Error on Page Try the following:. Also make sure that you firmly press the Power Switch to the ON position.

Replace the Electronics Module Page LED is Flashing continuously - A problem has been detected with the previous firmware upgrade. Try resending the firmware upgrade file. If for some reason the Boot-Up sequence fails because a component has failed to initialize, the following explanations will help you to locate the failing component:. During the first phase of the Boot-up sequence all the squares turn grey the Printer is initializing the Operating System. If for some reason this sequence fails, try the following:.

Switch the Printer On again and check if the initialization sequence is successful. During the second phase of the Boot-up sequence all the squares turn black the Printer is initializing various components too numerous to mention.

In normal circumstances, if a component fails during this sequence a System Error will appear and you should refer to Chapter 2 - System Error Codes. The following information explains what is being initialized as each square turns black:.

Initializing various components of the Main PCA. Initializing a portion of the Firmware. Initializing the User Interface Front Panel menus. Initializing the Formatter. End of initialization sequence. This will give you access to some of the Service Tests and Utilities without having to complete the System Initialization if you perform some of the tests, they will need to initialize the relevant part of the System.

Switch the Printer ON. Switch ON the Printer and check if it initializes completely. If it initializes correctly. The following information will help you detect any problems related to the Encoder Disk:.

Horizontal and periodic white lines, all of them with the same width depending on the failure mode. This is a clear indication that the Encoder Disk is damaged. But, if the problem persists, replace the Encoder Disk Assembly.

If the Paper Advance Test fails during the third test, the Front Panel will display the following message:. In this case, you should replace the Drive Roller Encoder Sensor. Page But, if the problem persists, replace the Encoder Disk. Roller Page Accessing the Error Log Utility System error codes are hexa-decimal based numbers generally caused by internal system errors.

The following pages contain a list of system error codes and their respective descriptions and recommended corrective actions. Some of the Error Codes are continuable, which means you can press Enter on the front-panel and continue working with the Printer. If the Error Code reappears, then the Printer requires an on-site visit in order to resolve the problem. The following table explains the first 2 digits of the System Error Code:. The following table explains the last 2 digits of the System Error Code:.

The Error Log utility contains a record of the last 10 system error codes the Printer has experienced. The purpose of this information is to:. Determine whether the previous problems are causing the current failure in the printer. Determine whether there are additional symptoms to the current system error code.

Press the. Press the Enter key. The Electronics Module is requesting a move to the Service Station while the previous move is still being completed. The Electronics Module Cooling Fan has reached its current limit. Reconnect the Cooling Fan located on top of the Electronics Module. The interruptions from the Scan-Axis servo or from the PaperAxis servo are not coming as regularly as they are expected or are coming too late. Switch the Printer Off and wait a few minutes.

Switch the Printer On again and check if the Error Code has disappeared. In this case reconfigure the model number Page The steps counted by the Service Station motor are not consistent with the expected length of the current movement. The Aerosol Fan has reached its maximum current limit. The Service Station motor has shutdown because of blockage.

One of the out-of-ink sensors located in the Ink Supply Station is not reporting what it should during the initializing process while depressurizing. Firmware release was not available, then contact the HP.

If AppleTalk is not being used to send the Binary file to. If the new Firmware release does not solve the problem, or if new Firmware release was not available, then contact the HP Response Center or directly to the Division supplying the following information:. Out of Memory problem.

Look on your computer screen for error messages; some drivers allow you to choose a different printing mode and attempt to send the file again.

Service Tests and Utilities c Once you have entered the last digit of the new serial number, the front panel will display the following message: Serial number. If you press Back, the previous screen will be displayed and the last digit of the new serial number will be deleted. You now have the opportunity to modify the new serial number. The following message will be displayed on the front panel asking you to confirm whether you want to change the font to Japanese. Do you want to set font type to Japanese?

If the Printer is not a DesignJet PS, or if the Printer does not detect a formatter, the Printer will not allow you to enter this utility and will display the following message on the front panel. You should only reset the usage counter for a certain component when it has been replaced by a new one.

Never reset the usage counter for a component when it has not been replaced. Select the usage counter that you want to reset and then press Enter. Reset usage counter Scan axis usage: Paper axis usage: Serv. Press Enter if you want to proceed with resetting the counter or press Cancel if you want to exit without resetting the counter: Reset usage counter. The following message will appear on the Front Panel. Also you will need to perform the Factory Advance Calibration.

Everytime the Drive Roller completes a turn, the counter will increase by one. Turning Drive Roller. Press Enter if you want to return to the Service Utility menu or press Back if you want to continue turning the Drive Roller.

Unlock Carriage. The Carriage will remain uncapped until another action e. Make sure you leave the Carriage in a locked position once the repair is completed. Prime Tubes This purpose of this Service Utility is to prime the Ink Supply Tubes after they have been replaced or if a situation arises where you need to force the priming procedure.

If you want to abort the Prime Tubes utility, press Cancel and you will return to the Service Utility menu. Prime tubes. You will need to remove the normal Printheads and replace them with Start-up Printheads. Open window and remove normal printheads to prepare ink system. Change Cutter The purpose of this Service Utility is to move the Cutter Assembly to a position where it can be replaced.

In order to actually replace the Cutter Assembly, refer to Page In order to actually replace the Ink Supply Tubes, refer to Page If you want to abort the Change Ink Tubes utility, press Cancel and you will return to the Set-up menu. Change ink tubes. Switch off the machine 2.

Refer to the Service Manual to replace tubes. Printer Information The purpose of this Utility is the following: n Report basic parameters for call qualification. This way the end of warranty period can easily be determined without needing a proof of purchase from the customer. The remainder gives you the day of the month e. Service Tests and Utilities Printer is designed to support. Service Calibrations The following is a list of all internal service calibrations available in the Printers.

Instructions for entering the service calibrations menu are given on Page This calibration is necessary in order to prevent color misalignment and print quality defects like banding. The Printer stores the calibration data for each type of media that has been calibrated since the Printer was switched ON. If the Printer is switched OFF, it will only store the last calibration done. This calibration is necessary to control the exact movement on the media type that will be used upto 2 in order to avoid print quality problems like banding.

This calibration is necessary to control the exact movement of the media in order to avoid print quality problems like banding. Service Calibrations 4 Press the Enter key to begin a specific calibration when the required Service Calibration is highlighted. Service calibrations Align printheads Color calibration Advance calibration Factory advance cal.

Printhead Alignment includes PPS Calibration The purpose of the Printhead Alignment is to correct the alignment between the Printheads in order to prevent color misalignment and print quality defects like banding.

Normally the Printhead Alignment is performed automatically whenever the printheads are replaced. During normal operation, the PPS calibration will not be performed automatically whenever the Printheads are replaced, even though the Printhead Alignment will be performed automatically. There are two options available when performing the Printhead Alignment: n Standard - Use this when only the Printheads need to be aligned.

If you try to use any other type of Paper the Printer will not allow you to perform the Alignment. Service calibrations. If the Calibration continues to fail due to Printhead problems, the Printer will mark the failing Printheads but they will still be usable. Color Calibration The purpose of this Calibration is to calibrate the ink system for the specific media loaded into the Printer. Make sure you load media before performing this calibration.

Color calibration. Service Calibrations If the calibration fails, then the following message will appear on the front panel: Menu Calibration error. Advance Calibration The purpose of this Service Calibration is to calibrate the nominal advance of the media. Perform the Advance Calibration whenever: n Banding is detected in prints. Advance calibration. Paper not present. The following message will be displayed while the Printer measures the pattern: Job management menu. Factory Advance Calibration The purpose of this Service Calibration is to calibrate the nominal advance of the media.

Factory advance cal. Service Calibrations 3 If media is not loaded, the following message appears on the front panel and you must load media into the Printer. Print Quality Print Quality Troubleshooting Checklist When faced with a Print Quality problem, use the following checklist as a guide in troubleshooting the problem: 1 Problem reproduction n Reproduce the problem that the customer is seeing using their original settings.

If not. If not available, use Coated media if required. Print Quality the Printer as indicated previously. The Printer contains an internal Troubleshooting procedure which helps you to diagnose and resolve the possible source of any Image Quality or Line Quality defects. Considerations for Using the Troubleshooting Procedure. If you use a different type of media or a different size, then there is a possibility that the print quality problem will not be resolved.

Using this process you can determine if the problem is with the Printer or with the non-HP media. The problem may be with the RIP or the driver for example. The Printhead Alignment requires a few centimeters of Paper loaded and takes several minutes to perform. The sorts of problems to look for are: n Jaggedness or serrations in the thin lines, like this: The lines should be straight, though not necessarily perfectly aligned.

The irregularities that are significant extend along the whole of the length of the lines. Shorter irregularities, arranged in columns, can be ignored at this stage. Print Quality the front panel, indicate whether there are problems with them. The sorts of problems to look for are: n White streaks or bands in the solid blocks. A Printhead can be cleaned up to 3 times in this way after which it will need to be replaced you will be informed via the front panel.

If you indicate that a color is defective, the Printer tries to clean that printhead. Use the following table to configure the system correctly. What to Configure. Solving Color Accuracy problems These are two areas you should review when troubleshooting a color accuracy problem: Configuration PostScript option only.

Check that you are using the correct driver setting and CRD information for the software. Check which ink emulation mode has been selected in the front panel. Make sure that the media loaded is genuine HP media and that the correct media type has been selected on the front panel and in the driver. Check that the media is fresh and has been stored correctly. By reducing the time the print stays in extreme environmental conditions after being printed especially very high humidity you can reduce the color consistency problems.

This will be because of the humidity conditions that the printer is working under: n Ask the customer to change the paper that they are printing with.

Media Always make sure that the customer is using the appropriate media for the required image and that it is consistent with the software application being used. To ensure color accuracy and print quality performance of the Printer, only media types that have been certified for the Printer should be used. Use of non-HP media or HP media not certified for the printer may significantly reduce the color and print quality of the required images.

To have accurate colors, the media settings must match the type of media loaded in the printer. If the customer is using non-HP media with HP drivers, the colors in the required print may not be accurate. Advise the customer to use HP media if they want to improve the accuracy of the colors.

There are Smears or Scratching on the Printed Media This problem can appear on paper-based coated media if a lot of ink is printed quickly. The media cannot absorb the ink quickly enough and becomes distorted. As the printheads move over the media, the Printheads and the media come into contact with each other and the printed image is smeared. In order to obtain better results perform the following: n Use HP recommended media. If the image you are printing has. If the above fails to solve the problem of smears and scratching, change the media that the customer is using to a non-paper based media such as HP High Gloss Photo Paper.

Introduction This chapter is a step by step guide to the removal and installation of the key components in the printer. You may find it useful to tick off the steps as they are performed. Use the illustration at each procedure to identify the parts referred to in the text. The procedures appear in order of removal. So the whole machine can be stripped down by starting at the beginning of this chapter and working through the subsequent procedures.

Before using this chapter to remove and install a new component, always make sure that you have performed the relevant service test from Chapter 4. If the test passes you will not need to replace the component. Follow these warnings and cautions for your protection and to avoid damaging the printer. Serious shock hazard leading to death or injury may result if you do not take the following precautions: Ensure that the ac power outlet mains has a protective earth ground terminal.

Switch the plotter off, and disconnect it from the power source prior to performing any maintenance. Prevent water or other liquids from running onto electrical components or circuits, or through openings in the module. Do not wear clothing that is subject to static build-up. Do not handle integrated circuits ICs in carpeted areas. Do not remove an IC or a printed circuit assembly PCA from its conductive foam pad or conductive packaging until you are ready to install it.

Ground earth your body while disassembling and working on the Printer. After removing a cover from the Printer, attach an earthing ground lead between the PCA common and earth ground. Touch all tools to earth ground to remove static charges before using them on the Printer. Refer to the table on Page for information on screw types. Remove the Spindle. Switch off the printer and remove the power cable.

Remove the Right Hand Trim. Switch off the printer and remove the power cord. Make sure that the Media Sensor is not attached to the Back Platen to prevent pulling the cable and breaking the sensor. Unclip the Media Sensor from underneath the Back Platen. Route the Media Sensor cable out where necessary and remove the Media Sensor.

With a flat end screwdriver, unscrew the 2 screws that attach the Formatter to the Electronics. Removal and Installation 4. When installing the Electronics Module, make sure that you insert the tab on the Printer into the slot in the Electronics Module.

Remove the Power Supply - Refer to Page Release the tension from the right hand side of the Belt by pulling the Tensioner down and pushing it towards you to lock it into position.

Make sure that you keep hold of the Scan-Axis Motor when removing the screws, otherwise the Motor could fall and be damaged. HP inkjet print cartridge, printhead and ink cartridge product warranty information HP inkjet print cartridge, printhead Returning an HP inkjet print cartridge, and ink cartridge limited warranty printhead or ink cartridge product All HP inkjet print cartridges, printheads, and ink If a problem occurs with an HP inkjet print cartridge, cartridges are warranted to be free from defects in printhead or ink cartridge, call the new voice-activated materials and workmanship during the warranty period.

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