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Control panel message Description Recommended action
54.01
PRINTER ERROR
To continue
turn off then on
Printing cannot continue. The humidity
environmental sensor is abnormal.
1. Turn the printer off and then back on.
2. If the problem persists, contact
HP Support at http://www.hp.com/
support/clj5550.
54.XX
PRINTER ERROR
To continue
turn off then on
Printing cannot continue. There is a
toner remaining sensor malfunction.
Values of X are:
15 - Yellow
16 - Magenta
17 - Cyan
18 - Black
1. Turn the printer off and then back on.
2. If the problem persists, contact
HP Support at http://www.hp.com/
support/clj5550.
55 DC CONTROLLER
ERROR
For help press
alternates with
55.0X.YY
PRINTER ERROR
To continue
turn off then on
A printer command error has occurred. 1. Turn the printer off and then back on.
2. If the problem persists, contact
HP Support at http://www.hp.com/
support/clj5550.
56.XX
PRINTER ERROR
To continue
turn off then on
A printer error has occurred. 1. Turn the printer off and then back on.
2. If the problem persists, contact
HP Support at http://www.hp.com/
support/clj5550.
57.0X
PRINTER ERROR
To continue
turn off then on
A printer fan error has occurred. 1. Turn the printer off and then back on.
2. If the problem persists, contact
HP Support at http://www.hp.com/
support/clj5550.
58.0X
PRINTER ERROR
For help press
alternates with
58.0X
PRINTER ERROR
To continue
turn off then on
A memory tag error was detected. 1. Turn the printer off and then back on.
2. If the problem persists, contact
HP Support at http://www.hp.com/
support/clj5550.
Control panel messages (continued)
160 Chapter 8 Problemsolving ENWW