HP LaserJet Pro 400 color Printer M451 series - Manual (Page 164)

Recommended action
Be sure that each print cartridge is in the correct slot. From front to back, the print cartridges are
installed in this order: black, cyan, magenta, yellow.
Install <color> cartridge
Description
The print cartridge is either not installed or not correctly installed in the product.
Recommended action
Install the print cartridge.
Invalid driver Press [OK]
Description
You are using an incorrect printer driver.
Recommended action
Select the correct printer driver.
Jam in <location>
Description
The product has detected a jam.
Recommended action
Clear the jam from the location indicated. The job should continue to print. If it does not, try reprinting
the job.
If the message persists, contact HP support.
Jam in tray # Clear jam and then Press [OK]
Description
The product has detected a jam.
Recommended action
Clear the jam from the location indicated, and then press OK .
If the message persists, contact HP support.
Load tray # <TYPE> <SIZE>
Description
A tray is configured for the paper type and size that the print job is requesting, but that tray is empty.
146 Chapter 11 Solve problems ENWW