User's Manual
Table Of Contents
- Introduction
- Welcome to your printer
- Safety precautions
- Main components
- Turn the printer on and off
- Front panel
- HP Utility
- HP Print Preview
- Embedded Web Server
- Demo prints
- Configure your printer
- Connect the printer to your network
- Install your printer under Windows
- Uninstall the printer software under Windows
- Install your printer under macOS
- Uninstall the printer software under macOS
- Set up printer services
- Control access to the printer
- Require account ID
- Drivers
- Set Windows driver preferences
- Change the graphic language setting
- Mobile printing
- Accessibility
- Other sources of information
- Paper handling
- General advice
- Load a roll onto the spindle
- Load a roll into the printer
- Unload a roll
- Load a single sheet
- Unload a single sheet
- Sensitive-paper mode (Z6dr and Z9+dr only)
- View information about the paper
- Paper presets
- Printing paper info
- Move the paper
- Feed and cut the paper
- Maintain paper
- Change the drying time
- Turn the automatic horizontal cutter on and off
- Turn the automatic vertical trimmer on and off (Z6dr and Z9+dr only)
- Use the take-up reel
- Working with two rolls (Z6dr/Z9+dr only)
- Networking
- Printing
- Introduction
- Print from a USB flash drive
- Print from a computer using a printer driver
- Advanced print settings
- Select print quality
- Select paper size
- Select margin options
- Print on loaded paper
- Rescale a print
- Change the treatment of overlapping lines
- Preview a print
- Print a draft
- High-quality printing
- Print in gray shades
- Print with crop lines
- Use paper economically
- Nest jobs to save roll paper
- Use ink economically
- Protect a paper type
- Unattended printing/overnight printing
- Mobile printing
- Job queue management
- Color management
- Practical printing examples
- Retrieving printer usage information
- Handling ink cartridges and printheads
- Maintaining the printer
- Accessories
- Troubleshooting paper issues
- Paper cannot be loaded successfully
- Paper type is not in the driver, HP Utility, or front panel
- Printer printed on the wrong paper type
- Automatic cut not available
- On hold for paper
- Which criteria are used to decide on which roll a job will be printed?
- When is a job put on hold for paper?
- If I load a new roll of paper, will jobs that were on hold for paper be automatically printed?
- I don’t like jobs being put on hold for paper. Can I prevent it?
- My job is exactly as wide as the roll of paper that is loaded on the printer, but is put on hold for ...
- Roll paper will not advance
- Paper has jammed
- Strip stays on the output tray and generates jams
- Strip stays in the output area and cutter rail area and generates jams (Z6dr and Z9+dr only)
- Printer displays out of paper when paper is available
- Prints do not fall neatly into the basket
- Sheet stays in the printer when the print has been completed
- Paper is cut when the print has been completed
- Horizontal cutter does not cut well
- Vertical trimmer does not cut (Z6dr and Z9+dr only)
- Vertical trimmer does not cut accurately (Z6dr and Z9+dr only)
- Vertical trimmer: printer reports missing modules (Z6dr and Z9+dr only)
- Vertical trimmer leaves marks on waste paper
- Roll is loose on the spindle
- Recalibrate the paper advance
- Troubleshooting print-quality issues
- General advice
- Horizontal lines across the image (banding)
- Banding appears as irregular watermarks
- Whole image is blurry or grainy
- Paper is not flat
- Print is scuffed or scratched
- Ink marks on the paper
- Black ink comes off when you touch the print
- Edges of objects are stepped or not sharp
- Edges of objects are darker than expected
- Horizontal lines at the end of a cut sheet print
- Vertical lines of different colors
- White spots on the print
- Colors are inaccurate
- My print does not have gloss uniformity (Z9+ only)
- Image is incomplete (clipped at the bottom)
- Image is clipped
- Some objects are missing from the printed image
- Lines are too thick, too thin or missing
- Lines appear stepped or jagged
- Lines print double or in the wrong colors
- Lines are discontinuous
- Lines are blurred
- Line lengths are inaccurate
- Image Diagnostics Print
- If you still have a problem
- Troubleshooting ink cartridge and printhead issues
- Cannot insert an ink cartridge
- Ink cartridge status messages
- Printer does not detect the gloss enhancer cartridge (Z9+ only)
- Cannot insert a printhead
- Front panel recommends reseating or replacing a printhead
- Clean the printheads
- Clean the printhead drop detector
- Align the printheads
- Printhead status messages
- Troubleshooting general printer issues
- Front-panel error messages
- HP Customer Care
- Printer specifications
- Glossary
- Index
4. 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.
CAUTION: 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.
CAUTION: Do not leave the printhead outside the printer for a long time. If this is absolutely necessary,
cover the printhead with the original orange caps, then store it in a horizontal position.
5. Reinsert the printhead into the same slot from which you removed it, see Insert a printhead on page 131.
CAUTION: Do not move it to a dierent position in the carriage. Once a printhead is inserted into a specic
slot, it is set up to work only with a specic combination of colors and cannot be moved to other slots.
6. Check the front-panel display message. If the problem remains, try a new printhead.
Clean the printheads
As long as the printer is kept turned on, automatic cleaning is performed periodically. This ensures there is fresh
ink in the nozzles and prevents nozzle clogs, which ensures color accuracy. If you have not already done so, see
Image Diagnostics Print on page 175 before proceeding.
To clean the printheads, go to the front panel and tap , then Clean printheads. If you have gone through
the Image Quality Diagnostic print process, you know which colors are failing. Select the pair of printheads which
contain the failing 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.
NOTE: Cleaning all printheads uses more ink than cleaning a single pair.
If you have cleaned the printheads using the Clean printheads procedure from the front panel and are still
experiencing print-quality problems, you can try cleaning the printhead nozzles manually using the following
procedure.
CAUTION: This is a delicate process, which may damage the printhead. Do not touch the electrical connections
on the rear of the printhead.
First remove the printhead (see Remove a printhead on page 129), then use a lint-free cloth to clean the bottom
of the printhead until the residue is removed.
180 Chapter 16 Troubleshooting ink cartridge and printhead issues ENWW