HP LaserJet Pro MFP M28-M31 - User Guide

Interpret control-panel light patterns
If the printer requires user conrmation, the LED control panel alternates between Go and a two-digit status
code. If the printer requires attention, the LED control panel alternates between Er and a two-digit error code.
Use the table below to determine any issues with the printer.
Table 8-1 Status-light legend
Symbol for "light o"
Symbol for "light on"
Symbol for "light blinking"
Table 8-2 Control-panel light patterns
Light status Error code State of the printer Action
The Attention light is
blinking.
NOTE: The Supplies
LED might or might
not be on in this state
depending on the
supply status.
Go/01 The printer is in manual-feed mode. Load the correct paper type and size into the input tray.
Press the Start Copy button to continue.
Go/02 The printer is processing a manual
duplex job.
Load the pages into the input tray to print the second
sides. Press the Start Copy button to continue.
Go/03 The paper type or size of the print
job is dierent than the tray settings.
Load the correct paper type and size into the input tray,
or press the Start Copy button to continue with
the paper currently loaded.
Go/04 The printer has received a request to
register this printer with Google
Cloud Print.
Press the Start Copy button to acknowledge this
request.
Go/05 The printer has received a request to
connect to this printer using Wi-Fi
Direct.
Enter the PIN on the printed report on your mobile
device.
Go/06 The printer has received a request to
connect to this printer using Wi-Fi
Direct.
Press the Start Copy button to connect.
Go/P2 An ID Copy job has been started. Turn over the identication card and press the ID Copy
button to continue.
Er/01 The input tray is empty. Load the tray.
Er/02 A door is open. Verify that the top cover is fully closed.
Er/03 The printer failed to pick a sheet of
paper to print.
Press Start Copy to continue.
Er/04 Paper is jammed in the input tray. Clear the jam.
Er/05 Paper is jammed in the toner
cartridge area.
Clear the jam.
Er/06 Paper is jammed in the output bin
area.
Clear the jam.
56 Chapter 8 Solve problems ENWW