Xerox Phaser 840 Document

Power indicator is blinking

The printer is receiving, processing or 
printing a job.

Wait for the job to be completed or cancel 
the job.

You have entered the menu in the front 
panel.

Exit the menu.

Power indicator is off

The printer is turned off, is not ready, is 
disabled, or has detected an error.

Make sure that the printer is plugged in and 
turned on.  

Error indicator is blinking

The printer is stopped because it 
detected an error or condition requiring 
user intervention, such as an open 
door or a media jam.

■

Correct the condition reported by the front 

panel (for example, close the door or clear the 
media jam).  

■

Press the 

 button to access information 

on the error condition.

■

If the problem is an error that is not 

user-correctable, contact Customer Support.

The front panel menu returns 
to 

Ready to Print

 

without any intervention.

Front-panel timeout:  If no activity 
occurs in 2 minutes, the front panel 
returns to 

Ready to Print

.

Scroll to 

Menu

 and press 

 to re-enter 

the menu.

Front panel reports:

Media Jam - Open 
front cover . . .

Media Jam - Open 
exit cover . . .

Media Jam - Remove 
<xxx> tray . . .

Media Jam - Retry 
manual feed

Media jam.

■

Make sure that paper or transparencies are 

installed correctly and that the tray’s media 
indicator switch has been set correctly  

■

When using the manual feed slot, make sure 

that the media is fed straight and aligned with 
the left edge of the manual feed slot.

■

To clear the jam:  Refer to “Clearing a media 

■

To prevent a jam:  Clean the rollers.  See 

page 57 for details on cleaning the printer.

Too much media is loaded in the 
media tray.

Reduce the amount of media to below the tray’s 
maximum-capacity label.

Media is wrinkled or curled.

Change the media.

Media is too thick or too thin.

Use recommended media; refer to page 7.

Media has jammed at the manual feed 
slot because it was not loaded 
properly.

Re-insert the media in the manual feed slot:  
make sure that it is loaded flush against the left 
side of the manual feed slot. 

Front panel reports:

Output tray full

Too much media is stacked in the 
output tray.

Remove all printed pages from the output tray.

Front panel reports:

Envelope Jam - 
Retry manual feed

An envelope has jammed because it 
was not loaded properly.

Re-insert the envelope in the manual feed slot:  
make sure it is loaded flush against the left side 
of the manual feed slot with the flap side facing 
up. 

Front panel reports: 

Incorrect Media 
Size

An incorrect paper size is loaded in the 
tray, or paper narrower than A4-size is 
in the manual feed slot.  

Use letter- or A4-size media only, or one of the 
supported envelope sizes.

Front panel reports:

Ink low - Add ink

The ink  is almost empty.

Add ink soon.