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

Horizontal smears on the front of coated paper
If a lot of ink is used on plain or coated paper, the paper absorbs the ink quickly and expands. As the printheads
move over the paper, the printheads may come into contact with the paper and smear the printed image. This
problem is normally seen only on cut sheets of paper (not on roll paper).
Whenever you notice this problem, cancel the printing job immediately. Soaked paper can damage the
printheads.
Try the following suggestions to avoid this problem:
1. Check that the paper type you have loaded corresponds to the paper type selected in the front panel and in
your software. See View information about the paper on page 35.
2. Use a recommended paper type (see Order paper on page 141) and the correct print settings.
3. If using sheet paper, try rotating the sheet 90 degrees. The orientation of the paper bers may aect
performance.
4. Try changing to a thicker paper type, such as HP Heavyweight Coated Paper and HP Super Heavyweight
Plus Matte Paper.
5. Select a paper type that is slightly thinner than the paper you have loaded; this will cause the printer to use
less ink. Here are some example paper types in ascending order of thickness: Plain Paper, Coated Paper,
Heavyweight Coated Paper, Super Heavyweight Plus Matte Paper.
6. Try to increase the margins by relocating the image to the center of the page using your software
application.
7. If you have a Z9
+
and you are printing on any kind of photographic paper, try loading the paper as Photo
Baryte, which increases the distance between the printhead and the paper.
Ink marks on the back of the paper
Clean the platen with a soft cloth. Clean each rib separately without touching the foam between the ribs.
Black ink comes o when you touch the print
This problem may be caused by printing with matte black ink on glossy paper. The printer will not use matte
black ink if it knows that the paper will not retain it. To be sure of avoiding matte black ink, you can select any
paper type from the Photo Paper category.
ENWW Black ink comes o when you touch the print 167