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HP Designjet 9000s Printer Series - User Maintenance Guide

Information
This document describes the regular inspection and maintenance procedures to be performed by users.
  • Regular maintenance guide
  • Daily printhead maintenance
  • Leave the printer off for two to four weeks
  • Leave the printer off for less than two weeks
  • Charge the ink system
  • Clean the exterior of the printer
  • Clean the rear cover and media feed
  • Clean the platen
  • Replace the waste ink bottle
  • Normal printhead recovery
  • IQ Print
Regular maintenance guide
The printer requires regular inspection and maintenance. The table below lists all regular inspection and maintenance procedures necessary.
  warning:
Do not turn off the printer without following the correct procedures. Even with the storage liquid installed, never leave the printer off for more than 4 weeks. Leaving the printer off for more than 4 weeks can cause permanent damage that cannot be repaired. In all other cases make sure you observe the appropriate maintenance guidelines.
  caution:
The printer has an internal clock which allows it to wash the printheads automatically, flushing some ink through the printhead, which keeps the printheads in good condition. This is done after the first 20 hours without printing and every 3 days. If the printer is turned off for a long period, this process does not happen. If the ink does not flow through the printheads from time to time, the ink will dry inside the nozzles, reaching a point where it is impossible to recover them and the printhead will fail. If the printer must be turned off for a long period of time, the customer must use either the optional HP Ink System Cleaning Kit or HP 790 Storage Kit to recover or protect the printheads.
Automatic maintenance and cleaning will not be performed even if you turn off the printer on the front panel. The printer power switch on the rear of the printer should only be used when the printer is turned off to move it, to connect it to a computer, or to install or maintain printer parts.
Category
Inspection/Maintenance
1
Daily inspection and maintenance
2
Monthly inspection and maintenance
Normal printhead recovery
3
When leaving the printer for a long time in power off state (more than 2 weeks)
Ink system storage
4
When returning the printer from a long time leaving (more than 2 weeks)
5
When returning the printer from a long time leaving (within 2 weeks) in power off state
6
When leaving the printer in power off for more than one month
A service call error message will be displayed on the front panel. Contact HP Support.
Daily printhead maintenance
  warning:
Failure to perform daily maintenance procedures may result in damage to your printer printheads and will invalidate your warranty.
  caution:
If you need to leave the printer unattended for any reason, ensure that the printer is on, the ink cartridges are full, and the waste ink bottle is empty, so that automatic maintenance (performed after the first 20 hours without printing and every 3 days) can be completed successfully for the time you are not present. If needed, install new ink cartridges. The ink cartridges that you replace can be reused when you return to your printer, if they still contain ink.
Daily printhead maintenance will ensure optimal print quality and the life of your printheads. The ink in your HP Designjet 9000s printer dries very quickly, so maintenance procedures ensure that the ink does not dry in the capping unit, the wiper blades, the ink tubes and printheads.
  • Wiper blade cleaning
  • Wiper sponge cleaning
  • Capping unit cleaning
  note:
Perform the above every day before printing.
Always use the specified cleaning liquid and HP cleaning swabs.
Wiper blade cleaning
  caution:
Make sure that the wiper cleaning liquid does not drip on to other parts of the printer. If the wiper cleaning liquid drips on to the belt or any nearby sensors, this could cause serious damage to the printer.
When the PRINTER READY message appears on the front panel, press the ONLINE key to take the printer offline.
  1. Press the ONLINE key.
  2. Press the SHIFT key to display the PH.MAIN menu.
  3. Press the (Up arrow) key to enter the PH.MAIN menu and scroll to the WIPER CLEANING option using the (Down arrow) key .
  4. Press OK to select WIPER CLEANING.
  5. Press OK to confirm.
    The wiper blade is moved to its cleaning position.
  6. When the message OPEN REAR COVER WIPER CLEANING is displayed on the front panel, open the rear cover and the wiper cover.
      Figure : Rear cover and wiper cover
    1. Rear cover
    2. Wiper cover
      Figure : Wiper blade
    1. Wiper blade
  7. Dip a new HP cleaning swab into the wiper cleaning liquid.
      caution:
    Make sure that you use the wiper cleaning liquid and not the capping liquid to clean the wiper blades. The capping liquid is not strong enough to clean the wiper blades properly and could cause damage to the printheads.
      Figure : HP cleaning swab
    1. HP cleaning swab
    2. Wiper cleaning liquid
      warning:
    Avoid contact between ink and skin, eyes, and clothing.
    Immediately wash skin with soapy water.
    Remove clothing soaked with ink from contact with skin.
    Use an approved eye wash station if ink is splashed into eyes and consult a doctor if necessary.
    If an approved eye wash station is unavailable, flush eyes with cold water and consult a doctor if necessary.
  8. Use the HP cleaning swab to clean the front and back parts of the wiper blades.
      caution:
    Make sure that the wiper cleaning liquid does not drip on to other parts of the printer. If the wiper cleaning liquid drips on to the belt or any nearby sensors, this could cause serious damage to the printer.
    Figure : Cleaning the wiper blades
      note:
    Make sure that there is no dried ink stuck on the wiper blades. Also make sure that the wiper blades are not damaged. Clean the front and back of the blades with the HP cleaning swab moistened with the HP wiper cleaning liquid.
  9. Apply a full dropper of the wiper cleaning liquid on to the sponge using the dropper.
      Figure : HP cleaning swab
    1. Dropper
    2. Wiper cleaning liquid
      caution:
    Make sure that the wiper cleaning liquid does not drip on to other parts of the printer. If the wiper cleaning liquid drips on to the belt or any nearby sensors, this could cause serious damage to the printer.
      Figure : Cleaning the wiper sponge
    1. Wiper sponge
  10. Make sure you also moisten both ends of the sponge under the belt on each side.
      Figure : Cleaning the wiper sponge
    1. Belt
    2. Dropper
Capping unit cleaning
This cleaning procedure will remove any dried ink and particles from the capping unit.
  1. Press the ONLINE key.
  2. Press the SHIFT key to display the PH.MAIN menu.
  3. Press the key to select the PH.MAIN menu.
  4. Scroll to the CAP CLEANING option using the ▼ key and press OK to select.
  5. Press OK again to confirm your selection.
    The carriage will automatically move to the wiping side of the printer so that the Capping Unit can easily be accessed. The front panel displays CARRIAGE MOVING — PLEASE WAIT.
      caution:
    Once the carriage is out of the capping unit, the cleaning procedure must be done as quickly as possible to avoid permanent damage to the printheads. The printer will emit an acoustic warning (beep) while the carriage is out of the capping unit.
  6. When the following message is displayed, open the rear cover and capping unit cover.
      Figure : Opening the rear cover and capping unit cover
    1. Rear cover
    2. Capping unit cover
  7. Dip a new HP cleaning swab into the HP cap cleaning liquid.
    HP cleaning swab
    1. HP cleaning swab
    2. HP cap cleaning liquid
      caution:
    Make sure that you use the cap cleaning liquid and not the wiper cleaning liquid to clean the capping unit, otherwise you could cause damage to the printheads.
  8. Clean the top outside edges and the upper surfaces of all six caps. Use one side of a swab per color and then use a new swab for the next color.
    Figure : Cleaning the caps
  9. Close the capping unit cover and rear cover. The head carriage will return to the capping unit position (home position) automatically.
Required maintenance procedures when printer is turned Off for two to four weeks
  warning:
Never switch off the printer without following the correct procedures. Even with the storage liquid installed, never leave the printer off for more than 4 weeks. Leaving your printer off for more than 4 weeks can cause permanent damage that cannot be repaired. In all other cases make sure you observe the appropriate maintenance guidelines.
  caution:
The printer has an internal clock which allows it to wash the printheads automatically, flushing some ink through the printhead, which keeps the printheads in good condition. This is done after the first 20 hours without printing and every 3 days. If the printer is switched off for a long period, this process does not happen. If the ink does not flow through the printheads from time to time, the ink will dry inside the nozzles, reaching a point where it is impossible to recover them and the printhead will fail. If the printer must be switched off for a long period of time, the customer must use either the optional HP Ink System Cleaning Kit or the HP 790 Storage Kit to recover or protect the printheads.
Automatic maintenance and cleaning will not be performed even if you turn off the printer at the front panel. The printer power switch at the rear of the printer should be used only when the printer is turned off to move it, to connect it to a computer, or to install or maintain printer parts.
Have available the HP 790 Ink System Storage Kit. Six ink system storage liquid cartridges and six ink system purging cartridges are packed together in the storage kit.
Have available an empty waste ink bottle.
Ink system storage
This procedure allows you to empty the ink system of ink and fills it with storage liquid that will preserve the ink system if you do not intend to use the printer for a period of time (two to four weeks).
  caution:
Do not open or close the rear covers or change the position of levers while the ink system storage process is being performed, or the operation may have to be restarted from the beginning. This will result in the waste of the storage liquid. If ink system storage has to be restarted, new storage liquid cartridges will be needed.
  1. Press the ONLINE key.
  2. Press the SHIFT key to display the PH.MAIN menu.
  3. Press the (Up arrow) key to select the PH.MAIN menu and press OK.
  4. Press the Up or Down arrow keys to select the STORE INK SYS option and then press OK.
  5. When the front panel displays the waste ink bottle warning message, check whether the waste ink bottle is present and make sure it is empty.
      caution:
    This process will produce over 3 liters of waste liquid so the waste ink bottle must be empty.
  6. Press the OK key once the waste ink bottle has been checked.
  7. Follow the instructions on the printer front panel that will guide you through each step of the process.
    When the front panel refers to PURGING CAR, install or remove an HP 790 Ink System Purging Cartridge that came with your HP 790 Ink System Storage Kit.
    When the front panel refers to SL CARTRIDGE, install or remove an HP 790 Ink System Storage Liquid Cartridge that came with your HP 790 Ink System Storage Kit.
  8. Once the ink system storage process has been completed, the front panel will return to the Ink system optimization menu.
  9. You can now turn the printer off.
    When you turn on the printer again, you will have to perform the charge ink system process (see Charge the ink system).
Required maintenance procedures when printer is turned Off for less than two weeks
  caution:
If you need to leave the printer unattended for any reason, ensure that the printer is on, the ink cartridges are full, and the waste ink bottle is empty, so that automatic maintenance (performed after the first 20 hours without printing and every 3 days) can be completed successfully for the time you are not present. If needed, install new ink cartridges. The ink cartridges that you replace can be reused when you return to your printer, if they still contain ink.
To clean the ink system you will need the HP 790 Ink System Cleaning Kit (part number CB296A). This kit includes:
  • Six ink system purging cartridges
  • Six cleaning liquid cartridges
Cleaning the ink system
This option allows you to clean dry ink from the ink system with cleaning liquid after the printer is powered on after being stored for less than two weeks.
  caution:
Do not open or close the rear covers or change the position of levers while the Service Clean process is being performed, or the operation may have to be restarted from the beginning. This will result in the waste of the cleaning liquid. If the Service Clean has to be restarted, new cleaning liquid cartridges will be needed.
  1. Press the ONLINE key.
  2. Press the SHIFT key to display the PH.MAIN menu.
  3. Press the (Up arrow) key to select the PH.MAIN menu and press OK.
  4. Press the Up or Down arrow keys to select the CLEAN INK SYS option and press OK.
  5. When the front panel displays the waste ink bottle warning message, check to ensure the waste ink bottle is present and that it is empty.
  6. Press the OK key once the waste ink bottle has been checked.
  7. Open the left ink cartridge door and remove all 3 ink cartridges.
  8. Install an ink system purging cartridge in to each slot and close the left ink cartridge door.
      note:
    If the printer detects that an ink system purging cartridge has been installed incorrectly or if an invalid cartridge has been installed, a warning message will be displayed on the front panel. You will need to make sure that a valid ink system purging cartridge has been installed correctly before you can continue.
  9. Follow the instructions on the printer front panel that will guide you through each step of the process. When the front panel refers to PURGING CAR, install or remove an HP 790 Ink System Purging Cartridge that came with your HP 790 Ink System Cleaning Kit. When the front panel refers to CL CARTRIDGE, install or remove an HP 790 Ink System Cleaning Liquid Cartridge that came with your HP 790 Ink System Cleaning Kit. 8. The extraction process starts and you need to recheck whether the waste ink bottle is present and is not full. Press the OK key once the waste ink bottle has been checked. Once the cleaning ink system process has been completed, the front panel will return to the PH. MAIN menu. After cleaning the ink system, the ink system needs to be charged.
  10. The extraction process starts and you need to recheck whether the waste ink bottle is present and is not full. Press the OK key once the waste ink bottle has been checked.
    Once the cleaning ink system process has been completed, the front panel will return to the PH. MAIN menu.
After cleaning the ink system, the ink system needs to be charged (see Charging the ink system section below).
Charging the ink system
When the printer is left for a long time and you need to clean the ink system, then you will need to charge the ink system with ink. You will need ink cartridges with more than 250 cc of ink available.
If any of the ink cartridges contain less than 250 cc of ink, or if an ink system purging cartridge has been installed, a warning message is displayed on the front panel. Install a correct ink cartridge that contains more than 250 cc of ink in the indicated slot in order to continue.
To charge the ink system:
  1. Press the ONLINE key.
  2. Press the SHIFT key to display the PH.MAIN menu.
  3. Press the (Up arrow) key to select the PH.MAIN menu.
  4. Select the CHARGE INK SYS option and press OK.
  5. When the front panel displays the waste ink bottle warning message, check whether the waste ink bottle is present and is not full. Check the waste ink bottle and press the OK key.
  6. The charge process starts. Check whether the waste ink bottle is present and is not full. Check the waste ink bottle and press the OK key.
    When the ink charge process is complete, the front panel displays the Ink Charge option.
Cleaning the exterior of the printer
  caution:
Wipe the printer clean with a soft cloth. A cloth moistened with a neutral detergent may be used. Do not allow liquid to enter the printer. This may create risk of fire and electrical shock and cause a malfunction. Do not clean the printer with benzene or paint thinner. This may damage the paint.
Clean the outside of the printer and all other parts of the printer that you regularly touch as part of normal operation (e.g. ink cartridge doors) as required with a damp sponge or a soft cloth and a mild household cleaner such as non-abrasive liquid soap.
Cleaning the rear cover and media feed
  note:
Do not attempt to remove dust from media by blowing it off. This may affect print quality.
  caution:
Wipe the printer clean with a soft cloth. A cloth moistened with a neutral detergent may be used. Do not allow liquid to enter the printer. This may create risk of fire and electrical shock and cause a malfunction. Do not clean the printer with benzene or paint thinner. This may damage the paint.
  1. Unload all media from the printer.
  2. Open the rear cover.
  3. Using a damp cloth, clean the rear cover.
  4. Using a damp cloth, absorb ink deposits on the media feed.
  5. Remove dust using a vacuum cleaner.
    Figure : Cleaning rear cover and media feed
  1. Rear cover
  2. Media feed
Cleaning the platen
You should plan to clean your printer's platen on a regular basis, every few months or when needed. When glue adheres to the platen or there are ink marks on the platen, clean the platen according to the following procedures.
  note:
If you print on wide media after you have used narrower media for some time, you may find that the left side of the platen has become dirty and will leave marks on the back of the media if not cleaned.
To clean the platen:
  1. Unload all media from the printer.
  2. Open the rear cover.
  3. Using a soft cloth, absorb ink deposits.
      Figure : Dirty platen
    1. Platen
    2. Ink
    3. Soft cloth
  4. Use a soft cloth slightly dampened with alcohol to wipe off loosened ink deposits from the platen.
      caution:
    Do not use commercial cleaners or abrasive cleaners. Do not wet the platen directly because you will leave too much moisture behind.
    Figure : Cleaning the platen
  5. If there are ink deposits in the vacuum holes on the platen, clean them using commercially-available 3 mm mini-cotton swabs and then wipe off loosened ink deposits with a mini-cotton swab slightly dampened with alcohol.
    Figure : Cleaning the vacuum holes
Replacing the waste ink bottle
  warning:
The HP waste ink bottle has been specifically designed to contain waste ink from the printer. It is designed to work with the printer’s waste ink quantity estimation system to alert the user when the bottle is full. It provides safe handling and disposal of waste ink when sealed with its attached cap.
Use only an HP waste ink bottle. The bottle must be installed according to instructions or waste ink may overflow.
An HP waste ink bottle must always be installed before turning the printer on. Automatic and manual service cycles produce waste ink that must be contained in an HP waste ink bottle.
  caution:
Do not remove the cap from its tether to the HP waste ink bottle. The cap is needed to seal the HP waste ink bottle properly for disposal.
  warning:
Always use both hands to remove and carry an HP waste ink bottle.
Keep the HP waste ink bottle upright. Do not place it on tables or shelves where it could fall.
Waste ink is combustible. Keep an HP waste ink bottle containing waste ink away from open flames, sparks, or other sources of ignition.
Never store waste ink in a glass container.
Never pour waste ink into a container filled with other chemicals.
  caution:
The level in the HP waste ink bottle must be checked by visual inspection to prevent overflow. If the waste ink level is above the indication line, the bottle must be replaced with an empty HP waste ink bottle.
  note:
Place a sheet of paper under the HP waste ink bottle on the floor when removing a bottle containing waste ink. This will help clean up any ink spills. If soaked with ink, treat the paper as a combustible material and dispose of properly.
HP recommends that you always keep a spare empty HP waste ink bottle available. Some maintenance procedures require installation of an empty HP waste ink bottle to prevent ink overflow.
The HP waste ink bottle contains organic solvents and must be disposed of in compliance with all local, state, and federal regulations. Always securely replace the cap on a full or partially-full the HP waste ink bottle after removing it from the printer to prevent ink spills.
Ensure all operators are trained in the use of emergency equipment such as eye wash stations and fire extinguishers and know where they are located.
  note:
Do not replace the waste ink bottle during printing.
The waste ink bottle must be checked on a daily basis to make sure that it is not full.
If full, it should be emptied as follows:
  1. Loosen the screw and lift up the lever to release the waste ink bottle.
      Figure : Loosening the screw and lifting the lever
    1. Screw
    2. Lever
  2. Carefully pull out the waste ink bottle, taking care not to spill ink on the printer or on the floor.
      Figure : Removing the waste ink bottle
    1. Screw
    2. Cap
  3. Pour any used ink contained in the waste ink bottle in to a suitable container.
  4. Lift the lever and install the empty waste ink bottle.
    Figure : Installing the empty waste ink bottle
  5. Lower the lever and insert the ink tube on the screw into the bottle, and tighten the screw. Make sure the waste ink bottle is securely in position.
      Figure : Lowering the lever and tightening the screw
    1. Lever
    2. Screw
  6. The front panel will request you to reset the waste ink counter.
  7. Select YES and press the OK key to reset the waste ink counter.
Normal printhead recovery
  1. Press the ONLINE key.
  2. Press the SHIFT key to display the PH.RECOVERY menu.
  3. Press the (Left arrow) key to enter the PH.RECOVERY menu.
  4. Press the OK key to confirm.
  5. Press the Up or Down arrow keys to select NORMAL ALL.
      note:
    If NORMAL ALL is not sufficient to clean the nozzles, then try a STRONG option for the set of printheads that are affected. Perform the IQ Print first to determine which set of printheads are affected.
  6. Press the OK key.
  7. Make sure that the waste ink bottle is not full, and then press the OK key again.
      note:
    Cleaning may take several minutes.
  8. When cleaning is completed, the PH.RECOVERY option is displayed.
  9. Press the Left arrow key to return to the offline mode.
Image quality print
Use the IQ print to check that all printhead nozzles are working correctly. Perform the IQ print every day before using your printer.
  note:
Use the IQ print to check that all printhead nozzles are working correctly after cap cleaning.
Click here for instructions on how to print and interpret the image quality print at http://www.hp.com/cposupport/printers/support_doc/c00605712.html.

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