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

Introduction
Color management is performed using a set of software tools that allow you to reproduce a color as accurately
as possible on any display or printing device.
In addition, your printer has been engineered with advanced hardware and software features to ensure
predictable and dependable results.
● Color calibration for consistent colors
● The Photo Black ink provides pure blacks when printing on photo papers
How colors are represented
Color is usually represented as an array of numbers: three numbers in the RGB color model or four in the CMYK
color model. These numbers are a measure of the base colors used in a mixture to create a given color. RGB
means that we are using a mixture of Red, Green, and Blue to create any specic color. In the case of CMYK, the
mixture is of Cyan, Magenta, Yellow, and Key (where Key means black, for historical reasons).
Most monitors use the RGB color model, while most printers use the CMYK color model.
An image can be converted from one color model to another, but in general the conversion is not perfect. Your
printer uses the RGB color model: the same color model that is used by your monitor.
This simplies but does not completely solve the problem of matching colors. Each device represents colors a
little dierently from another device, even if they use the same color model. However, color management
software can adjust the colors in an image according to the characteristics of the particular device, using a color
prole of the device, in order to achieve correct colors.
A summary of the color management process
To get the accurate and consistent colors that you want, you should follow these steps for each paper type that
you use.
1. Color-calibrate the paper type, for consistent colors. Calibration should be repeated every now and then
(see Color calibration on page 88). In addition, you may wish to calibrate immediately before a particularly
important print job for which color consistency is vital.
2. When printing, select the correct paper preset for the paper type you are using. The paper preset contains
the color prole as well as various other characteristics of the paper. See Paper presets on page 36.
Color calibration
Color calibration enables your printer to produce consistent colors with the particular printheads, inks and paper
type that you are using, and under your particular environmental conditions. After color calibration, you can
expect to get similar prints from any two dierent printers situated in dierent geographical locations.
Some paper types cannot be calibrated. For all other paper types, calibration should be done in any of the
following circumstances:
● Whenever a printhead is replaced
● Whenever a new paper type is introduced that has not yet been calibrated with the current set of
printheads
● Whenever the environmental conditions (temperature and humidity) change signicantly
88 Chapter 8 Color management ENWW