HP 9000s Daily printhead maintenance

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 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	Wiper blade cleaning
		Wiper sponge cleaning — see Wiper
		blade cleaning
		Capping unit cleaning
		Normal printhead recovery
		IQ Print

2	Monthly inspection and maintenance	Normal printhead recovery

3	When leaving the printer for a long time	Ink system storage
	in power off state (more than 2 weeks)

4	When returning the printer from a long
	time leaving (more than 2 weeks)

Clean ink system

Charge the ink system after cleaning the ink system

5	When returning the printer from a long
	time leaving (within 2 weeks) in power
	off state

Clean ink system

Charge the ink system after cleaning the ink system

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.

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Chapter 6 How do I maintain the printer?

ENWW

Contents

Page Page Table of contents 4 How do I... (printing topics) 5 How do I… (ink topics) 6 How do I maintain the printer 7 How do I get the best image quality 8 The problem is… (troubleshooting topics) 9 The problem is print quality 10 Tell me about… (basic knowledge topics) 11 Tell me about media 12 Tell me about the ink system 13 Tell me about waste management 14 Tell me about front panel menus Page 15 Tell me about the heaters 16 Tell me about printer specifications 17 Tell me about ordering supplies and accessories 18 Tell me about getting help 1 Introduction Using this guide Introduction How do I The problem is Tell me about Front view Rear view The heaters The printer's front panel Page Page Basic printer operations and keys The heater's front panel Defining heater parameters Safety precautions General warnings Page General cautions Handling precautions Power supply Printer Regular inspection and maintenance Consumables Page 2 How do I perform basic operations Connect to a computer Choose the system configuration Connection procedure Turn the power on/off Turn on the printer Page PRINTER READY INITIALIZING PH.RECOVERY Turn on the heater Turn the power off Turn off the printer Turn off the heater Page Page 3 How do I load/unload media Install a media roll in the printer Page Page Page Page Page Page ROLL NEST NEW MEDIA ENTRY SELECT MEDIA Remove a media roll from the printer Replace a jammed media roll Load cut sheet Page Page Page SHEET Use the take-upreel Set the take-upreel winding direction Page Define the take-upreel winding mode MEDIA REG Load media on to the take-upreel Page Page Page Use the media edge guard Page Set the fan guard lever Page 4 How do I... (printing topics) Perform a manual media feed Use manual nesting Page Page Increase/reduce pressure on media Pause or cancel print jobs Page Page 5 How do I… (ink topics) Replace an ink cartridge Page Change the printhead height PH. MAIN PH.MAIN PH HEIGHT ADJUST Page PH HEIGHT VAL HIGH Parameters: NORMAL 6 How do I maintain the printer Regular maintenance guide Daily printhead maintenance Wiper blade cleaning Page Page Page Page Capping unit cleaning Page Leave the printer off for two to four weeks Ink system storage Leave the printer off for less than two weeks Clean ink system Charge the ink system Clean the exterior of the printer Clean the rear cover and media feed Clean the platen Page Replace the waste ink bottle Page Page Normal printhead recovery NORMAL ALL STRONG IQ Print Page 7 How do I get the best image quality Print the Image Quality print IQ PRINT Interpret the image quality print Manage media types Copy a media type to create a new one Create a new media type Modify media type settings Delete a media type Calibrate the printer Calibrate media advance Page DETAIL Perform printhead position adjustment Back feed adjustment print H-QUALITY2 H-DENSITY2 DRAFT Adjust heater and print mode settings Page 8The problem is… (troubleshooting topics) The problem is… (checklist) A head crash Page Page Ink cartridge is not installed Ink cartridge is not detected Ink cartridge is near expiry date Ink cartridge has passed its expiry date An error message Service errors POC error messages Engine error messages Operator error messages Ink cartridge Measure: Waste ink bottle is not installed Waste ink bottle is full Media crash Media Other messages An abnormal sound 9 The problem is print quality Page 10Tell me about… (basic knowledge topics) Operating conditions Installation space Environmental conditions Operating temperature and humidity levels Places where the printer must not be installed The power supply Power Dryer Exhaust attachment Front panel messages and printer state Messages on the front panel Initialization display Online state (idle mode) display Online state (print mode) display Online state (print pause mode) display Online state (print information mode) display Offline (menu mode) display Shutdown state display Page 11 Tell me about media Storing media Disposing of media Using media Handling prints Other precautions 12 Tell me about the ink system Ink cartridges Page Replacing an ink cartridge Ink cartridge storage and disposal HP 790 Waste Ink Bottle Precautions for handling the waste ink bottle HP 790 Cap Cleaning Liquid HP 790 Wiper Cleaning Liquid and Dropper HP Cleaning Swabs HP 790 Storage Kit HP 790 Ink System Cleaning Kit Page 13 Tell me about waste management General recommendations Page Page 14 Tell me about front panel menus Menu operations Menu structure Making front panel selections and settings 01 : FINE To define a value MEDIA ADV. VALUE Character list The INK menu & messages Replacing an empty ink cartridge Replacing ink cartridges during printing The ink cover is open The ink cartridge is empty The MEDIA menu The MEDIA REG menu Selecting a media type number (SELECT MEDIA) Setting a media type name (RENAME MEDIA) Media advance value (MEDIA ADV VALUE) Manufacturing default media advance value (MFNG VAL) Dry time value (DRY TIME VALUE) Print mode setting (PRINT MODE) Print direction setting (PRINT DIRECTION) Flatten time (FLATTEN TIME) Use media edge guard (USE EDGE GUARD) Media advance mode (MEDIA ADV MODE) Take-upreel mode (TUR MODE) Leading edge mode (LEADING EDGE) Vacuum level setting (VACUUM LEVEL) Initial temperature setting for the front heater (FRONT HEATER T) Initial temperature setting for the print heater (PRINT HEATER T) Initial temperature setting for the rear heater (REAR HEATER T) Color stripe setting (COLOR STRIPE) Printhead firing mode setting (IMAGE GRADIENT) Printhead height setting (PH HEIGHT VAL) Bidirectional print position (Left) adjustment (YY BIDIR DEF(L)) Bidirectional print position (Right) adjustment (YY BIDIR DEF(R)) Printhead cleaning mode (PH CLEANING) Media back feed adjustment (BACK ADJUST VAL) Media advance preference (ADVANCE PREF) Print mode preference (PRINT MODE PREF) Heater preference (HEATER PREF) Printhead rest period (PH REST PERIOD) Printhead rest time (PH REST TIME) Printhead temperature rest (PH TEMP REST) Deleting a media type (DELETE MEDIA) Copying a media type (COPY MEDIA) Pasting a media type (PASTE MEDIA) Page Media advance calibration Media advance calibration print Media back feed adjustment value The PH. MAIN menu Ink system optimization (INK SYS OPT) Cap cleaning (CAP CLEANING) Wiper cleaning (WIPER CLEANING) Washing printheads (WASH PRINTHEADS) Printhead height (PH HEIGHT ADJ) The PH.RECOVERY menu The FEED menu The PRINTER menu Configuration print (CONFIG PRINT) Error log information print (ERROR LOG PRINT) History print (HISTORY PRINT) The ADJUST menu Adjustment pattern print (TEST PRINTS) Printhead nozzle position adjustment (#YY PH ROW VAL) Printhead position adjustment (#YY PH TO PH VAL) Bidirectional print position (Left) adjustment (YY BIDIR F.D (L)) Bidirectional print position (Right) adjustment (YY BIDIR F.D (R)) The SETUP menu Language for front panel (LANGUAGE) BOOT version display (BOOT VERSION) Acoustic warning (BEEP) F/W version display (F/W VERSION) Main PCA version display (MAIN PCA VER) ICB board version display (CARRIAGE PCA) ASIC version display (ASIC VER) Heater H/W version display (HEATER HW VER) Heater F/W version display (HEATER FW VER) System date setting (SYSTEM DATE) System time setting (SYSTEM TIME) Factory default setting (FACTORY DEFAULT) USB address (USB ADDRESS) USB speed (USB SPEED) 15 Tell me about the heaters The heaters Heater temperature settings Heater preset temperature by medium Flow of heater temperature setting Temperature control Maintaining the preset temperature Maintaining the standby temperature Turning off the heaters The heater front panel Display in normal mode Display — heater on Display — heater off Display — heater AC power is turned off Heater parameter setup mode Setup items and parameters Heater error messages Page 16 Tell me about printer specifications Specifications Ecological specifications Page 17Tell me about ordering supplies and accessories Ordering supplies Ordering media Ordering accessories Page 18 Tell me about getting help HP Customer Care HP Designjet Online Index