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Control-panel display problems
CAUTION: Static electricity can cause unexpected black lines or dots to appear on the product control-
panel display. Do not touch the product control-panel display if there is a chance that you have collected
a static electric charge (for example, by walking on carpet in a low-humidity environment).
Unexpected lines or dots might appear on the product control-panel display, or the display might become
blank if the product is exposed to an electric or magnetic field. To resolve this problem, perform the
following procedure:
1. Turn the product off.
2. Remove the product from the electric or magnetic field.
3. Turn the product on again.
Clear jams
Causes of jams
Occasionally, paper or other print media can become jammed during a print job. Some causes include
the following events:
●
The input trays are loaded improperly or overfilled, or the media guides are not set properly.
●
Media is added to or removed from an input tray during a print job or an input tray is removed from
the product during a print job.
●
The cartridge door is opened during a print job.
●
Too many sheets have accumulated in an output area, or sheets are blocking an output area.
●
The print media that is being used does not meet HP specifications. See
Paper and print media
on page 45.
●
The media is damaged or has foreign objects attached to it, such as staples or paper clips.
●
The environment in which the print media was stored is too humid or too dry. See
Paper and print
media on page 45.
174 Chapter 12 Problem solve ENWW