
Do you have a question about the HP Scanjet N8420 and is the answer not in the manual?
| Bit Depth | 48-bit |
|---|---|
| Grayscale Levels | 256 |
| Automatic Document Feeder Capacity | 50 sheets |
| Scanner Type | Flatbed |
| Scan Size Flatbed (Maximum) | 8.5 x 11.7 inches |
| Connectivity, Standard | USB 2.0 |
| Interface | USB |
Summarizes scanner capabilities and features available through software.
Details the physical components and parts of the HP Scanjet N8400 series scanner.
Explains the function and operation of buttons located on the scanner's front panel.
Describes the Tools button's function to access the HP Scanner Tools Utility.
Explains the scanner's lamp operation modes: Power Save and Instant Lamp On.
Lists and briefly describes the scanning and document management software included with the scanner.
Introduces the HP Smart Document Scan Software for managing scanning processes.
Explains the function of the HP Document Copy utility for processing scan copy requests.
Describes the HP Scanner Tools Utility for configuring settings and managing scanner status.
Lists resources for further information on the scanner and its software.
Covers accessibility features, including LCD Reader and button control options.
Details the LCD Reader software for outputting panel display information to the monitor.
Explains how to disable scanner front panel buttons to prevent accidental presses.
Outlines the fundamental steps required to perform a scan using the scanner.
Describes the fundamental steps for making copies using the scanner.
Provides instructions on how to place documents on the scanner glass or in the document feeder.
Details how to initiate scans using the buttons on the scanner's front panel.
Explains how to start scans using the HP Smart Document Scan Software application.
Describes scanning using other ISIS or TWAIN compliant software applications.
Explains how to configure profiles for fully automated scans without user intervention.
Guides users through the process of creating new scanning profiles in the software.
Explains how to link scan profiles to the scanner's quick start buttons.
Details how to select which profiles appear on the scanner's front panel display.
Describes how to export and import scan profiles, useful for workgroups and sharing.
Describes the Maintenance tab for viewing scanner usage and history.
Provides information on purchasing replacement parts and cleaning supplies.
Step-by-step instructions for cleaning the scanner's glass surface.
Explains the periodic maintenance required for the automatic document feeder.
Instructions for cleaning the internal paper path to resolve scan quality issues.
Steps to clean the ADF window to resolve image quality problems like streaks.
Procedures for cleaning the feed roller to address jams or scan streaks.
Instructions for replacing worn or damaged feed rollers and separation pads.
Guides on how to detach the automatic document feeder unit from the scanner.
Lists common scanner error messages and their recovery processes for resolution.
Solutions for issues related to scanner startup failures or hardware malfunctions.
Addresses various issues encountered during normal scanner operation.
Troubleshooting steps for when the scanner lamp does not turn off automatically.
Solutions for delays or unresponsiveness when initiating a scan.
Tips for resolving blurry or unclear scanned images.
Addresses issues with the sequence of scanned pages received.
Explains causes and solutions for slow scanning performance.
Troubleshooting for scans resulting in solid black or white images.
Guides on how to fix scanned images that are tilted or skewed.
Solutions for vertical white stripes appearing on scanned output.
Guidance on cleaning the scanner glass to improve image quality.
Advice on reducing scanned file sizes by adjusting resolution or settings.
Solutions for when scanner front panel buttons fail to function as expected.
Troubleshooting steps for issues encountered with the automatic document feeder.
Steps to resolve streaks or scratches appearing on scanned images from the ADF.
Addresses recurring paper jams within the automatic document feeder.
Detailed instructions for removing paper jams from the automatic document feeder.
Information on how to obtain technical assistance from HP Support.
Enables scanning of documents longer than the standard 14-inch limit via the ADF.
Filters out specific colors from scans to reduce file size or improve OCR accuracy.
Feature that stops scans if multiple pages are fed simultaneously into the ADF.











