LASERJET PRO 200 COLOR
Troubleshooting Manual
M251n M251nw
HP LaserJet Pro 200 color M251 Series
Printer
Troubleshooting Manual
Copyright and License
Trademark Credits
© 2012 Copyright Hewlett-Packard
Development Company, L.P.
Reproduction, adaptation, or translation
without prior written permission is
prohibited, except as allowed under the
copyright laws.
The information contained herein is subject
to change without notice.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products and
services. Nothing herein should be
construed as constituting an additional
warranty. HP shall not be liable for technical
or editorial errors or omissions contained
herein.
Part number: CF146-90968
Edition 1, 9/2012
Microsoft®, Windows®, Windows® XP,
and Windows Vista® are U.S. registered
trademarks of Microsoft Corporation.
ENERGY STAR and the ENERGY STAR mark
are registered U.S. marks.
Conventions used in this guide
TIP: Tips provide helpful hints or shortcuts.
NOTE: Notes provide important information to explain a concept or to complete a task.
CAUTION: Cautions indicate procedures that you should follow to avoid losing data or damaging
the product.
WARNING! Warnings alert you to specific procedures that you should follow to avoid personal
injury, catastrophic loss of data, or extensive damage to the product.
ENWW iii
Table of contents
1 Theory of operation .......................................................................................................... 1
Basic operation ........................................................................................................................ 2
Major product systems ............................................................................................... 2
Product components .................................................................................................. 3
Sequence of operation ............................................................................................... 4
Engine control system ............................................................................................................... 5
DC controller ............................................................................................................ 6
Low-voltage power supply .......................................................................................... 7
High-voltage power supply ......................................................................................... 8
Laser/scanner system ............................................................................................................... 9
Laser failure detection ................................................................................................ 9
Image-formation system ........................................................................................................... 10
Image-formation process .......................................................................................... 10
Latent-image formation stage .................................................................................... 11
Step 1: primary charging .......................................................................... 12
Step 2: laser-beam exposure ..................................................................... 12
Developing stage .................................................................................................... 12
Step 3: development ................................................................................. 13
Transfer stage ......................................................................................................... 14
Step 4: primary transfer ............................................................................ 14
Step 5: secondary transfer ......................................................................... 14
Step 6: separation from the ITB .................................................................. 15
Fusing stage ........................................................................................................... 15
Step 7: fusing .......................................................................................... 15
ITB cleaning stage ................................................................................................... 16
Step 8: ITB cleaning ................................................................................. 16
Drum cleaning stage ................................................................................................ 17
Step 9: drum cleaning .............................................................................. 17
Pickup-and-feed system ........................................................................................................... 18
Jam detection ......................................................................................................... 19
USB flash drive ...................................................................................................................... 20
ENWW v
2 Solve problems ............................................................................................................... 21
Solve problems checklist ......................................................................................................... 22
Menu map ............................................................................................................................ 24
Print a menu map (LCD control panel) ........................................................................ 24
Print a menu map (touchscreen control panel) ............................................................. 24
Troubleshooting process .......................................................................................................... 25
Pre-troubleshooting checklist ..................................................................................... 25
Power-on checks ..................................................................................................... 27
Tools for troubleshooting ......................................................................................................... 28
Component diagnostics ............................................................................................ 28
LED diagnostics ........................................................................................ 28
Network LEDs ........................................................................... 28
Control panel LEDs .................................................................... 29
Control-panel diagnostics .......................................................................... 30
Engine diagnostics ................................................................................... 30
Engine test ................................................................................ 30
Diagrams ............................................................................................................... 31
Plug/jack locations ................................................................................... 31
DC controller PCA .................................................................................... 32
Locations of major components .................................................................. 34
General timing chart ................................................................................. 36
General circuit diagram ............................................................................ 37
Internal print-quality test pages .................................................................................. 38
Interpret the Print Quality Page ................................................................... 38
Print a cleaning page ............................................................................... 38
Print a cleaning page (LCD control panel) .................................... 39
Print a cleaning page (touchscreen control panel) .......................... 39
Configuration page .................................................................................. 39
Print a configuration page (LCD control panel) .............................. 39
Print a configuration page (touchscreen control panel) ................... 40
Print-quality troubleshooting tools .............................................................................. 41
Repetitive image defects ............................................................................ 41
Calibrate the product to align the colors ...................................................... 41
Control-panel menus ................................................................................................ 42
Setup Menu ............................................................................................. 42
HP Web Services ...................................................................... 42
Reports menu ............................................................................ 43
Self Diagnostics menu ................................................................ 44
System Setup menu .................................................................... 45
Service menu ............................................................................ 48
Network Setup menu ................................................................. 50
vi ENWW
Quick Forms menu .................................................................... 51
Function specific menus ............................................................................. 52
Apps ....................................................................................... 52
USB Flash Drive ........................................................................ 52
Interpret control panel messages ............................................................................... 53
Control panel message types ..................................................................... 53
Control panel messages ............................................................................ 53
10.X00Y Supply Error ................................................................ 53
49 Error, Turn off then on ........................................................... 54
50.x Fuser Error ........................................................................ 54
51.XX Error .............................................................................. 54
54.XX Error .............................................................................. 54
55.X Error ................................................................................ 55
57 Fan Error, Turn off then on ..................................................... 55
59.X Error ................................................................................ 55
79 Error Turn off then on ............................................................ 56
Black Cartridge Low .................................................................. 56
Black in wrong position .............................................................. 56
Black Very Low ......................................................................... 56
Cleaning .................................................................................. 57
Cyan Cartridge Low .................................................................. 57
Cyan in wrong position .............................................................. 57
Cyan Very Low ......................................................................... 57
Device error, press OK .............................................................. 58
Door open ................................................................................ 58
Genuine HP supply installed ....................................................... 58
Incompatible <color> ................................................................. 58
Incorrect supplies ...................................................................... 58
Install <color> cartridge ............................................................. 59
Invalid driver Press [OK] ............................................................ 59
Jam in Tray 1, Clear jam and then press OK ................................ 59
Load tray 1 Press [OK] for available media .................................. 59
Load Tray 1 <TYPE> <SIZE>, Press OK to use available media ....... 59
Load Tray 1, <PLAIN> <SIZE> / Cleaning mode, OK to start ......... 59
Magenta Cartridge Low ............................................................. 60
Magenta in wrong position ........................................................ 60
Magenta Very Low .................................................................... 60
Manual Duplex Load Tray 1, Press OK ........................................ 60
Memory is low. Press OK. .......................................................... 61
Misprint, Press OK ..................................................................... 61
Print failure, press OK. If error repeats, turn off then on. ................. 61
ENWW vii
Rear door open ......................................................................... 61
Remove shipping lock from <color> cartridge ............................... 62
Remove shipping locks from cartridges ........................................ 62
Replace <color> ....................................................................... 62
Supplies low ............................................................................. 62
Unexpected size in tray 1 Load <size> Press [OK] ........................ 62
Unsupported <color> Press [OK] to continue .............................. 0
Used <color> in use ............................................................... 0
Used <color> installed, to accept press OK ............................... 0
Used supplies in use ............................................................... 0
Yellow Cartridge Low ............................................................. 0
Yellow in wrong position ......................................................... 0
Yellow Very Low .................................................................... 0
Event-log messages ............................................................................................... 0
Clear jams ......................................................................................................................... 0
Jam locations ....................................................................................................... 0
Clear jams in the paper input tray .......................................................................... 0
Clear jams from the output bin ............................................................................... 0
Clear jams from the rear door ................................................................................ 0
Solve paper-handling problems ............................................................................................. 0
The product picks up multiple sheets of paper .......................................................... 0
The product does not pick up paper ....................................................................... 0
Solve image quality problems ............................................................................................... 0
Use the correct paper type setting in the printer driver .............................................. 0
Change the paper type setting for Windows ............................................. 0
Change the paper type setting for Mac .................................................... 0
Adjust color settings in the printer driver .................................................................. 0
Change the color theme for a print job .................................................... 0
Change the color options ....................................................................... 0
Use paper that meets HP specifications ................................................................... 0
Print a cleaning page ........................................................................................... 0
Print a cleaning page (LCD control panel) ................................................ 0
Print a cleaning page (touchscreen control panel) ...................................... 0
Calibrate the product to align the colors .................................................................. 0
Check the toner cartridges ..................................................................................... 0
Print the Supplies Status page ................................................................. 0
Inspect the print cartridge for damage ..................................................... 0
Repeating defects .................................................................................. 0
Use the printer driver that best meets your printing needs .......................................... 0
Solve performance problems ................................................................................................ 0
Factors affecting print performance ........................................................................ 0
viii ENWW
Print speeds ............................................................................................. 84
The product does not print or it prints slowly ............................................................... 85
The product does not print ......................................................................... 85
The product prints slowly ........................................................................... 86
Solve product connectivity problems ......................................................................................... 87
Solve direct-connect problems ................................................................................... 87
Solve network problems ........................................................................................... 87
Poor physical connection ........................................................................... 87
The computer is using the incorrect IP address for the product ........................ 87
The computer is unable to communicate with the product .............................. 88
The product is using incorrect link and duplex settings for the network ............ 88
New software programs might be causing compatibility problems .................. 88
The computer or workstation might be set up incorrectly ................................ 88
The product is disabled, or other network settings are incorrect ...................... 88
Solve wireless network problems ............................................................................... 89
Wireless connectivity checklist ................................................................... 89
The control panel displays the message: The wireless feature on this product
has been turned off .................................................................................. 90
The product does not print after the wireless configuration completes .............. 90
The product does not print, and the computer has a third-party firewall
installed .................................................................................................. 90
The wireless connection does not work after moving the wireless router or
product ................................................................................................... 90
Cannot connect more computers to the wireless product ................................ 91
The wireless product loses communication when connected to a VPN ............. 91
The network does not appear in the wireless networks list ............................. 91
The wireless network is not functioning ........................................................ 92
Service mode functions ........................................................................................................... 93
Service menu .......................................................................................................... 93
Service menu settings ................................................................................ 93
Restore the factory-set defaults ................................................................... 93
Restore the factory-set defaults (LCD control panel) ......................... 94
Restore the factory-set defaults (touchscreen control panel) .............. 94
Secondary service menu .......................................................................................... 94
Open the secondary service menu (LCD control panel) .................................. 94
Open the secondary service menu (touchscreen control panel) ....................... 94
Secondary service menu structure ............................................................... 95
Engine resets .......................................................................................................... 96
Engine test page ...................................................................................... 96
Cold reset ............................................................................................... 96
NVRAM initialization ................................................................................ 96
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Product updates ..................................................................................................................... 97
Appendix A Service and support ....................................................................................... 99
Hewlett-Packard limited warranty statement ............................................................................. 100
HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement .................. 102
Data stored on the print cartridge ........................................................................................... 103
End User License Agreement .................................................................................................. 104
OpenSSL ............................................................................................................................. 106
Customer support ................................................................................................................. 107
Repack the product .............................................................................................................. 108
Appendix B Product specifications ................................................................................... 109
Physical specifications .......................................................................................................... 110
Power consumption, electrical specifications, and acoustic emissions .......................................... 110
Environmental specifications .................................................................................................. 110
Appendix C Regulatory information ................................................................................. 111
FCC regulations ................................................................................................................... 112
Environmental product stewardship program ........................................................................... 113
Protecting the environment ...................................................................................... 113
Ozone production ................................................................................................. 113
Power consumption ............................................................................................... 113
Paper use ............................................................................................................. 113
Plastics ................................................................................................................. 113
HP LaserJet print supplies ....................................................................................... 113
Return and recycling instructions ............................................................................. 114
United States and Puerto Rico .................................................................. 114
Multiple returns (more than one cartridge) .................................. 114
Single returns .......................................................................... 114
Shipping ................................................................................ 114
Non-U.S. returns .................................................................................... 115
Paper .................................................................................................................. 115
Material restrictions ............................................................................................... 115
Disposal of waste equipment by users in private households in the European Union ...... 115
Chemical substances ............................................................................................. 115
Material Safety Data Sheet (MSDS) ......................................................................... 116
For more information ............................................................................................. 117
Declaration of conformity ...................................................................................................... 118
Declaration of conformity (wireless model) .............................................................................. 120
Certificate of Volatility .......................................................................................................... 122
x ENWW
Safety statements ................................................................................................................. 123
Laser safety .......................................................................................................... 123
Canadian DOC regulations .................................................................................... 123
VCCI statement (Japan) .......................................................................................... 123
Power cord instructions .......................................................................................... 123
Power cord statement (Japan) ................................................................................. 123
EMC statement (Korea) .......................................................................................... 124
Laser statement for Finland ..................................................................................... 125
GS statement (Germany) ........................................................................................ 125
Substances Table (China) ....................................................................................... 126
Restriction on Hazardous Substances statement (Turkey) ............................................. 126
Additional statements for wireless products .............................................................................. 127
FCC compliance statement—United States ................................................................ 127
Australia statement ................................................................................................ 127
Brazil ANATEL statement ........................................................................................ 127
Canadian statements ............................................................................................. 127
European Union regulatory notice ........................................................................... 127
Notice for use in France ......................................................................................... 128
Notice for use in Russia ......................................................................................... 128
Korean statement .................................................................................................. 128
Taiwan statement .................................................................................................. 129
Index ............................................................................................................................... 131
ENWW xi
List of tables
Table 1-1 Sequence of operation ............................................................................................................ 4
Table 2-1 DC controller connectors ....................................................................................................... 32
Table 2-2 Major components ............................................................................................................... 34
Table 2-3 Repetitive image defects ........................................................................................................ 41
Table 2-4 Event-log messages ............................................................................................................... 64
Table 2-5 Secondary Service menu ....................................................................................................... 95
Table B-1 Physical specifications ......................................................................................................... 110
Table B-2 Environmental specifications ................................................................................................ 110
ENWW xiii
List of figures
Figure 1-1 Product systems ..................................................................................................................... 2
Figure 1-2 Product components ............................................................................................................... 3
Figure 1-3 Engine control system components ........................................................................................... 5
Figure 1-4 DC controller circuit diagram .................................................................................................. 6
Figure 1-5 Low-voltage power supply ...................................................................................................... 7
Figure 1-6 High-voltage power supply ..................................................................................................... 8
Figure 1-7 Laser/scanner system ............................................................................................................. 9
Figure 1-8 Image-formation system ........................................................................................................ 10
Figure 1-9 Image-formation process ...................................................................................................... 11
Figure 1-10 Primary charging ............................................................................................................... 12
Figure 1-11 Laser-beam exposure ......................................................................................................... 12
Figure 1-12 Development ..................................................................................................................... 13
Figure 1-13 Primary transfer ................................................................................................................. 14
Figure 1-14 Secondary transfer ............................................................................................................ 14
Figure 1-15 Separation from the ITB ...................................................................................................... 15
Figure 1-16 Fusing .............................................................................................................................. 15
Figure 1-17 ITB cleaning ..................................................................................................................
Figure 1-18 Drum cleaning .................................................................................................................. 17
Figure 1-19 Pickup-and-feed system ....................................................................................................... 18
Figure 2-1 DC controller connectors ...................................................................................................... 32
Figure 2-2 Major components .............................................................................................................. 34
Figure 2-3 Timing diagram ................................................................................................................... 36
Figure 2-4 Circuit diagram ................................................................................................................... 37
.... 16
ENWW xv
1 Theory of operation
This chapter presents an overview of the major components of the printer and includes a detailed
discussion of the image-formation system.
Basic operation
●
Engine control system
●
Laser/scanner system
●
Image-formation system
●
Pickup-and-feed system
●
USB flash drive
●
ENWW 1
Basic operation
Major product systems
The product includes the following systems:
Engine control system
●
Laser/scanner system
●
Image-formation system
●
Pickup-and-feed system
●
Figure 1-1 Product systems
LASER/SCANNER SYSTEM
ENGINE CONTROL
SYSTEM
IMAGE-FORMATION SYSTEM
PICKUP-AND-FEED SYSTEM
2 Chapter 1 Theory of operation ENWW
Product components
Figure 1-2 Product components
1
3 4
2
5
14
13
Item Description Item Description
1 Fuser unit 8 Cassette
2 Delivery roller 9 Pickup roller
3 ITB drive roller 10 Separation roller
4 Photosensitive drum 11 Registration roller
5 Laser scanner assembly 12 Secondary transfer roller
6 Transfer pad 13 Fusing film
7 Intermediate transfer belt (ITB) 14 Pressure roller
12
11
10
9
8
7
6
ENWW
Basic operation
3
Sequence of operation
Table 1-1 Sequence of operation
Period Duration Purpose Remarks
WAIT From the time the power is
turned on or the door is
closed, until the printer is
ready for a print operation
STBY (Standby period) From end of the WAIT or
LSTR period until either the
print command is received
from the formatter or the
power is turned off
INTR (Initial rotation) From the time the print
command is received until the
media is picked up
PRINT From the end of INTR period
until the fuser paper sensor
detects the trailing edge of
paper
LSTR (Last rotation) From the end of the PRINT
period until the delivery motor
stops rotating
Clears the potential from the
drum surface, adjusts the
drum phase, and cleans the
ITB
Maintains the printer in
readiness for a print
command
Prepares the photosensitive
drum for printing
Forms the images on the
photosensitive drum and
transfers the toner image to
the print media
Moves the printed sheet out
of the printer
Detects the cartridge
presence and environment;
completes any required
calibration (color registration
control and image stability)
The printer enters sleep mode
when the formatter sends a
sleep command, and
performs color registration
and the image stability
control when the formatter
sends those commands
Performs image stabilization
at a specified print interval or
at specified times
The printer enters the INTR
period as soon as the
formatter sends another print
command
4 Chapter 1 Theory of operation ENWW
Engine control system
The engine control system coordinates all printer functions and drives the other three systems.
The engine control system contains the DC controller, high-voltage power-supply PCA, low-voltage
power-supply unit, and fuser control.
Figure 1-3 Engine control system components
Formatter
Engine-control system
Laser scanner system
DC controller
Low-voltage power supply
Image-formation system
High-voltage power supply
Fuser control
Pickup, feed and delivery
system
ENWW
Engine control system
5
DC controller
Figure 1-4 DC controller circuit diagram
Motor
AC input
Fuser
Low-voltage
power supply
Fuser
power supply
Driver
DC controller
Fan
Solenoid
Photointerrupter
Switch
ITB assembly
Laser scanner assembly
USB (NOTE)
High-voltage
T2 roller
Cartridge
power supply
NOTE: USB block for touchscreen-equipped models only.
Formatter
Control panel
6 Chapter 1 Theory of operation ENWW
Low-voltage power supply
Figure 1-5 Low-voltage power supply
AC input
Fuse
FU901
Fuse
FU801
Rectifying
circuit
Fuser control
circuit
Fuser power supply
PWSV
DC controller
Power switch
SW801
+24V
generation
circuit
Protection
circuit
+24VR
+24V
control circuit
+3.3V
generation
circuit
+3.3V
control circuit
Low-voltage power supply
REM24V
+24VA
VCTRLOFF
+3.3VC
+3.3VA+3.3VA
+3.3VB
Formatter
+24VA
Power switch
control circuit
ENWW
Engine control system
7
High-voltage power supply
Figure 1-6 High-voltage power supply
Primary charging bias circuit
Cartridge
Photosensitive drum
T1 pad
ITB cleaning
ass’y
T2 roller
Developing bias circuit
ITB
ITB cleaning brush
bias circuit
ITB cleaning roller
bias circuit
T2 bias circui
DC controller
T1 bias circuit
High-voltage power supply
8 Chapter 1 Theory of operation ENWW
Laser/scanner system
The formatter sends video signals to the DC controller, which controls the laser/scanner. When the
laser/scanner system receives those signals, it converts them to latent images on the photosensitive
drum.
Figure 1-7 Laser/scanner system
Scanner mirror
Scanner motor assembly
Laser assembly
BD sensor
Photosensitive drum
(Y)
Photosensitive drum
(M)
Photosensitive drum
Laser failure detection
The optical unit failure detection sensor manages the laser/scanner unit failure-detection functions. The
DC controller identifies the laser/scanner unit failure and notifies the formatter if the laser/scanner unit
encounters the following conditions:
Scanner motor failure
●
BD failure
●
(C)
Photosensitive drum
(K)
DC controller
ENWW
Laser/scanner system
9
Image-formation system
The image-formation system forms a toner image on media. The product includes four toner cartridges
that contain the toner. Toner is applied in the following order, using only the colors necessary for a
specific image: yellow (Y), magenta (M), cyan (C), and black (K).
Figure 1-8 Image-formation system
High-voltage power supply
Fuser
DC controller
Laser scanner assembly
Cartridge
T2 roller
Image-formation process
Laser printing requires the interaction of several different technologies including electronics, optics, and
electrographics to provide a printed page. Each process functions independently and must be
coordinated with the other processes. Image formation consists of the following processes:
Latent-image formation
●
Development
●
Transfer
●
MCYK
T1 pad
Photosensitive drum
ITB
10 Chapter 1 Theory of operation ENWW
Fuser
●
ITB cleaning
●
Drum cleaning
●
These processes are divided into nine steps, which are shown in
on page 11 and described in the following sections.
Figure 1-9 Image-formation process
Delivery
Latent image formation
7. Fusing
Fuser
3. Development
Development
Transfer
6. Separation
5. Secondary transfer
Registration
2. Laser beam exposure
1. Primary charging
Photosensitive drum cleaning
9. Drum cleaning
4. Primary transfer
8. ITB cleaning
ITB cleaning
Figure 1-9 Image-formation process
: Media path
: Direction of drum rotation
: Block
: Step
Pickup
Latent-image formation stage
During the two steps that comprise this stage, a latent image is formed by applying a negative charge
to the photosensitive drum. You cannot see this image on the drum.
ENWW
Image-formation system
11
Step 1: primary charging
A high-voltage DC bias is applied to the primary charging roller, which is made of conductive rubber
and is in contact with the drum surface. As the roller moves across the drum, it applies the negative
charge to that surface.
Figure 1-10 Primary charging
Primary charging roller
Photosensitive drum
Step 2: laser-beam exposure
The laser beam scans the photosensitive drum to neutralize the negative charge on portions of the drum
surface. An electrostatic latent image is formed where the negative charge was neutralized.
DC bias
Figure 1-11 Laser-beam exposure
Unexposed area Exposed area
Developing stage
The developer roller comes in contact with the photosensitive drum and deposits toner on the
electrostatic latent image.
Laser beam
12 Chapter 1 Theory of operation ENWW
Step 3: development
Toner acquires a negative charge as a result of the friction from the developer roller rotating against the
developer blade. When the negatively charged toner comes in contact with the drum, it adheres to the
electrostatic latent image. When the toner is on the drum, the image becomes visible.
Figure 1-12 Development
Developer blade
Exposed area
Unexposed area
Developer roller
DC negative bias
Unexposed area
Exposed area
Photosensitive drum
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Image-formation system
13
Transfer stage
Step 4: primary transfer
The toner image on the photosensitive drum is transferred to the ITB. The DC positive bias is applied to
the primary transfer pad. The negatively charged toner transfers to the ITB from the drum surface.
Figure 1-13 Primary transfer
Photosensitive
T1 pad
drum
ITB
T1 bias
Step 5: secondary transfer
The toner image on the ITB is transferred to the print media. The DC positive bias is applied to the
secondary transfer roller. As the media passes between the secondary transfer roller and the ITB, the
toner image is transferred to the media.
Figure 1-14 Secondary transfer
Media
Secondary transfer roller
DC bias
ITB
ITB drive roller
14 Chapter 1 Theory of operation ENWW
Step 6: separation from the ITB
The elasticity of the print media and the curvature of the ITB drive roller cause the media to separate
from the ITB.
Figure 1-15 Separation from the ITB
Media
Secondary transfer roller
Fusing stage
Until the fusing stage is complete, the image is not permanently affixed to the print media. The toner
can be easily smudged until the heat and pressure of the fusing process fix the image to the sheet.
Step 7: fusing
ITB
ITB drive roller
The product uses an on-demand fixing method to fix the toner image onto the media. The toner image
is permanently affixed to the print media by heat and pressure.
Figure 1-16 Fusing
Fuser film
Fuser heater
Toner
Paper
Pressure roller
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Image-formation system
15
ITB cleaning stage
Step 8: ITB cleaning
The ITB cleaning roller and the cleaning brush are applied with the DC positive bias to charge the
residual toner positive. Because the primary transfer pad is also applied with the DC positive bias, the
positively charged residual toner is reverse-transferred to the photosensitive drum from the ITB surface.
Figure 1-17 ITB cleaning
Positive potential waste toner
Negative potential waste toner
Partition sheet
ITB cleaning brush
Sweeper strip
DC bias
Cartridge
Photosensitive drum
ITB cleaning roller
IT B
DC bias
16 Chapter 1 Theory of operation ENWW
Drum cleaning stage
Not all of the toner is removed from the photosensitive drum during the transfer stage. During the
cleaning stage, the residual, or waste, toner is cleared from the drum surface to prepare the surface for
the next latent-image formation.
Step 9: drum cleaning
The cleaning blade scrapes the residual toner off the surface of the photosensitive drum and deposits it
in the waste-toner container. The drum is now clear and is ready for the next image-formation process.
Figure 1-18 Drum cleaning
Cleaning blade Blowout seal
Photosensitive
drum
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Image-formation system
17
Pickup-and-feed system
The pickup-and-feed system picks up and feeds the print media. It consists of several types of feed
rollers.
Figure 1-19 Pickup-and-feed system
SR610 SR611
SR609
SR607
SR603
SR602
SR601
Number Description Number Description
Cassette paper out sensor SR601 CASSETTE PAPER OUT signal
Registration sensor SR602 REGISTRATION signal
Loop sensor SR603 LOOP signal
SW1
Fuser output sensor SR609 FUSER OUTPUT signal
Rear door open detection sensor SR607 REAR DOOR OPEN DETECTION signal
Paper width sensor (L) SR610 PAPER WIDTH (L) signal
Paper width sensor (R) SR611 PAPER WIDTH (R) signal
Front door open detection switch SW1 FRONT DOOR OPEN DETECTION signal
18 Chapter 1 Theory of operation ENWW
Jam detection
The product uses the following sensors to detect the presence of media and to check whether media is
being fed correctly or has jammed:
Cassette media-presence sensor
●
Top-of-page sensor
●
Loop sensor
●
Fuser delivery sensor
●
The product detects the following jams:
Pickup delay jam
●
Pickup stationary jam
●
Delivery delay jam
●
Delivery stationary jam
●
Fixing wrapping jam
●
Residual media jam
●
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Pickup-and-feed system
19
USB flash drive
This product features printing from the following types of files from the USB flash drive.
PDF
●
RGB JPEG
●
When a USB flash drive is inserted into the front of the product, the control panel will display the USB
Flash Drive Menu. The files present on the USB flash drive can be accessed from the control panel using
the touch screen. Any RGB jpeg or pdf files on the USB flash drive can be printed directly from the
product control panel.
20 Chapter 1 Theory of operation ENWW
2 Solve problems
Solve problems checklist
●
Menu map
●
Troubleshooting process
●
Tools for troubleshooting
●
Clear jams
●
Solve paper-handling problems
●
Solve image quality problems
●
Solve performance problems
●
Solve product connectivity problems
●
Service mode functions
●
Product updates
●
ENWW 21
Solve problems checklist
1. Ensure that the product is set up correctly.
a. Press the power button to turn on the product or to deactivate the Auto-Off mode.
b. Check the power-cable connections.
c. Ensure that the line voltage is correct for the product power configuration. (See the label that
is on the back of the product for voltage requirements.) If you are using a power strip and its
voltage is not within specifications, plug the product directly into the wall. If it is already
plugged into the wall, try a different outlet.
2. Check the cable connections.
a. Check the cable connection between the product and the computer. Ensure that the
connection is secure.
b. Ensure that the cable itself is not faulty, by using a different cable, if possible.
c. Check the network connection: Ensure the network light is lit. The network light is next to the
network port on the back of the product.
If the product remains unable to connect to the network, uninstall and then reinstall the
product. If the error persists, contact a network administrator.
3. Check to see if any messages appear on the control panel.
4. Ensure that the paper you are using meets specifications.
5. Ensure that the paper is loaded correctly in the input tray.
6. Ensure that the product software is installed correctly.
7. Verify that you have installed the printer driver for this product and that you are selecting this
product from the list of available printers.
8. Print a configuration page.
a. If the page does not print, verify that the input tray contains paper and that the paper is
properly loaded.
b. Ensure that the toner cartridge is installed correctly.
22 Chapter 2 Solve problems ENWW
c. If the page jams in the product, clear the jam.
d. If the print quality is unacceptable, complete the following steps:
Verify that the print settings are correct for the paper you are using.
●
Solve print-quality problems.
●
9. Print a small document from a different program that has printed in the past. If this solution works,
then the problem is with the program you are using. If this solution does not work (the document
does not print), complete these steps:
a. Try printing the job from another computer that has the product software installed.
b. Check the cable connection. Direct the product to the correct port, or reinstall the software,
selecting the connection type you are using.
ENWW
Solve problems checklist
23
Menu map
Print a menu map (LCD control panel)
NOTE: This section applies to the HP LaserJet Pro 200 color M251n Printer model only.
1. On the control panel, press the OK button to open the menus.
2. Open the Reports menu.
3. Select Menu Structure, and then press the OK button to print the report.
Print a menu map (touchscreen control panel)
NOTE: This section applies to the HP LaserJet Pro 200 color M251nw Printer model only.
1. From the Home screen on the product control panel, touch the Setup button.
2. Touch the Reports button.
3. Touch the Menu Structure button.
24 Chapter 2 Solve problems ENWW
Troubleshooting process
When the product malfunctions or encounters an unexpected situation, the product control panel alerts
you to the situation. This chapter contains information to help diagnose and solve problems.
Use the pre-troubleshooting checklist to evaluate the source of the problem and to reduce the
●
number of steps that are required to fix the problem.
Use the troubleshooting flowchart to pinpoint the root cause of the hardware malfunction. The
●
flowchart guides you to the section of this chapter that contains steps for correcting the
malfunction.
Before beginning any troubleshooting procedure, check the following issues:
Are supply items within their rated life?
●
Does the configuration page reveal any configuration errors?
●
NOTE: The customer is responsible for checking supplies and for using supplies that are in good
condition.
Pre-troubleshooting checklist
The following table includes basic questions to ask the customer to quickly help define the problem(s).
General topic Questions
Environment
Media
Input trays
Is the product installed on a solid, level surface (+/- 1°)?
●
Is the power-supply voltage within ± 10 volts of the specified power source?
●
Is the power-supply plug inserted in the product and the outlet?
●
Is the operating environment within the specified parameters?
●
Is the product exposed to ammonia gas, such as that produced by diazo
●
copiers or office cleaning materials?
NOTE: Diazo copiers produce ammonia gas as part of the copying
processes. Ammonia gas (from cleaning supplies or a diazo copier) can have
an adverse affect on some product components (for example, the printcartridge OPC).
Is the product exposed to direct sunlight?
●
Does the customer use only supported media?
●
Is the media in good condition (no curls, folds, or distortion)?
●
Is the media stored correctly and within environmental limits?
●
Is the amount of media in the tray within specifications?
●
Is the media correctly placed in the tray?
●
ENWW
Are the paper guides aligned with the stack?
●
Is the cassette correctly installed in the product?
●
Troubleshooting process
25
General topic Questions
Toner cartridges
Transfer unit and fuser
Covers
Condensation
Miscellaneous
Is each toner cartridge installed correctly?
●
Are the transfer unit and fuser installed correctly?
●
Is the front cover closed?
●
Does condensation occur following a temperature change (particularly in
●
winter following cold storage)? If so, wipe affected parts dry or leave the
product on for 10 to 20 minutes.
Was the toner cartridge opened soon after being moved from a cold to a
●
warm room? If so, allow the toner cartridge to sit at room temperature for 1 to
2 hours.
Check for and remove any non-HP components (toner cartridges, memory
●
modules, and EIO cards) from the product.
If the hardware or software configuration has not changed or the problem is
●
not associated with any specific software, see the complete service manual for
this product.
Remove the product from the network and ensure that the failure is associated
●
with the product before beginning troubleshooting.
For any print-quality issues, calibrate the product.
●
26 Chapter 2 Solve problems ENWW
Power-on checks
When you turn on the product, if it does not make any sound or if the control-panel display is blank,
check the following items:
Verify that the product is plugged directly into an active electrical outlet that has the correct
●
voltage. Do not plug the product into a surge protector or power strip.
Verify that the on/off switch is in the on position.
●
Verify that the formatter is seated and operating correctly.
●
Remove any HP Jetdirect accessories or other devices, and then try to turn the product on again.
●
Ensure that the control-panel display is connected.
●
Check the two fuses on the power supply.
●
If necessary, replace the power supply.
●
If necessary, replace the DC controller.
●
ENWW
Troubleshooting process
27
Tools for troubleshooting
Component diagnostics
LED diagnostics
Network LEDs
The onboard network solution has two network port LEDs. When the product is connected to a properly
working network through a network cable, the yellow LED indicates network activity, and the green LED
indicates the link status. A blinking yellow LED indicates network traffic. If the green LED is off, a link
has failed.
For link failures, check all of the network cable connections. In addition, you can try to manually
configure the link settings on the onboard network solution by using the product control-panel menus.
1. Touchscreen control panel:
a. Touch the Setup
button.
b. Scroll to and touch the Network Setup menu.
c. Touch the Link Speed menu.
2. LCD control panel:
a. On the control panel, press the OK button to open the menus.
b. Open the following menus:
Setup Menu
◦
Network Setup
◦
Link Speed
◦
3. Select one of the following options.
Setting Description
Automatic The print server automatically configures itself for the highest link speed and
communication mode allowed on the network.
10T Half 10 megabytes per second (Mbps), half-duplex operation
10T Full 10 Mbps, full-duplex operation
100TX Half 100 Mbps, half-duplex operation
100TX Full 100 Mbps, full-duplex operation
28 Chapter 2 Solve problems ENWW
Control panel LEDs
The state of the Ready light and the Attention light on the product signal the product status. The
following table outlines the possible control-panel light states.
NOTE: Wireless models have a blue LED that illuminates when the product's wireless function is
enabled and available.
Product state Ready light state Attention light state
Initializing Blinking Blinking
Ready On Off
Receiving data/processing job or
cancelling job
Error message Off Blinking
Fatal error (49 or 79 error)
1
The product restarts after one of these errors occurs.
1
Blinking Off
On On
ENWW
Tools for troubleshooting
29
Control-panel diagnostics
The product includes diagnostic tests for the control panel.
Test the control-panel display
1. Touch the Setup
2. Touch the left arrow button
3. Touch the Setup
4. Open the 2ndary Service menu.
5. Open the Display test menu.
Test the control-panel buttons
1. Touch the Setup
2. Touch the left arrow button
3. Touch the Setup
4. Open the 2ndary Service menu.
5. Open the Button test menu.
Engine diagnostics
Engine test
button.
, and then quickly touch the Cancel button.
button to return to the main menu.
button.
, and then quickly touch the Cancel button.
button to return to the main menu.
1. With the product off, open the front and rear doors.
2. Turn the power on, and close both doors within 10 seconds.
3. An engine test page (a page containing multiple horizontal-colored lines) will print.
30 Chapter 2 Solve problems ENWW
Diagrams
Plug/jack locations
1 Hi-Speed USB 2.0 port
2 Network port
ENWW
Tools for troubleshooting
31
DC controller PCA
1
Figure 2-1 DC controller connectors
1313
8
J109J120
16
J124
23
22
J107
29
28
J108
27
1
26
2
J115
1
2
1
2
J126
1
2
J127
5
4
1
2
J119
14
15
J140
16
J103
16
J116
2
1
13
J104
8
9
4
2
3
1
J105
Table 2-1 DC controller connectors
Item Description
J103 Low-voltage power supply (+3.3 V)
J104 Thermistor (TH802)
J105 Fuser power supply
J107 Formatter
J108 Laser driver PCA
J109 Scanner motor (M704)
J115 High-voltage power supply
J116 Pickup assembly
Loop sensor (SR603)
●
Top-of-page sensor (SR602)
●
Cassette media present sensor (SR601)
●
32 Chapter 2 Solve problems ENWW
Table 2-1 DC controller connectors (continued)
Item Description
J119 ITB assembly density and perimeter sensors
J120 Developing home position sensor (SR606)
J124 Memory tags (e-labels)
J126 IOT
127 Flash
J130 Front door (cartridge access door) switch
J131 Power switch
J140 Motor driver
ENWW
Tools for troubleshooting
33
Locations of major components
Figure 2-2 Major components
2
1
3
4
6
Table 2-2 Major components
Item Description
1 Fuser power supply
5
34 Chapter 2 Solve problems ENWW
Table 2-2 Major components (continued)
Item Description
2 Fuser assembly
3 Sub-drive assembly
4 Low-voltage power suppy
5 Main drive assembly
6 ITB assembly
ENWW
Tools for troubleshooting
35
General timing chart
The following chart lists the approximate timing for this product, specified in seconds.
Figure 2-3 Timing diagram
LSTR STBYPRINTSTBY INTR
1 Print command
I. GENERAL TIMING CHART
Two consecutive prints on LTR paper
2 Cassette pickup solenoid
4 Fuser output sensor
3 Registration sensor
5 TOP signal
6 Scanner motor
7 Pickup motor
8 Main motor
9 Fuser motor
10 Fuser heater
11 Charging bias
12 Developer bias (Y)
Developer bias (K)
14 Developer bias (C)
13 Developer bias (M)
15
T1 bias (M and C)
T1 bias (Y)
16
17
T1 bias (K)
T2 bias
18
19
20 Main fan
23
22
21
36 Chapter 2 Solve problems ENWW
General circuit diagram
Figure 2-4 Circuit diagram
J140
21
1234
PGND
4321
J202_BUS[0:21]
J704
M704
M
+24VA
/SCNDEC
/SCNACC
J109
/CCRT
/VDOEN
SC
232221
23
J901
J9999
123456
J9998
USB
<MF model>
Laser driver PCA
2
1
+3.3VB
SGND
LD4PWM
29
J107_BUS[0:23]
RTC3V
/BD0
SCLK
/TOP
SGND
201918
171615
J901_BUS[0:23]
Formatter
123456
4
/VDO4
VDO4
987653214
WAKEENG
WAKEVC
14
Formatter
Board to Board
Wireless
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CNT41
SGND
13
Module
SGND
SGND
FAN_ON
FANLK
CNT40
J107
23
121110
VDO4
12
connector
DEVSL
FEEDI1B
FEEDI0B
FEEDI1A
FEEDI0A
FEEDPB
FEEDPA
FEEDSL
FSRMPA
FSRMPB
FSRMI0A
FSRMI1A
FSRMI0B
FSRMI1B
/MAINMFG
/MAINMACC
/MAINMDEC
87653
LD3PWM
13
/VDO4
11
9
10
/BDI
SGND
14
SGND
VDO3
10
987653214
Laser scanner assembly
29
J501
J501_BUS[0:29]
+3.3VB
/VDO3
VDO3
SGND
CNT30
CNT31
J108_BUS[0:29]
29
J108
DC controller PCA
18
171615
/VDO2
VDO2
SGND
VDO1
/VDO3
SGND
J903
J902B
J905
26
GND
GND
DCLK
SGND
MT1MT2
1
2
3
J408_BUS[0:21]
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
+3.3VB
CNT121
CNT120
/VDO2
VDO2
SGND
SGND
LD2PWM
10111213141516171819202122232425262728
2322212019
<LCD model>
SGND
/VDO1
J903_BUS[0:8]
8
SGND
+3.3V
SGND
234
+3.3V
1
SGND
6
J902
+3.3V
SGND
+3.3V
345
PGND
+24V
12
J905_BUS[0:26]
412356789
1011121314151617181920212223242526
D0D1D2D3D4D5D6
GND
GND
VSYNC
HSYNC
26
J906
+3.3VB
LD1PWM
412356789
5V
8
/CPRESET
7
/INT
6
CPCLK
5
CPIN
4
GND
3
3.3V
2
CPOUT
1
GND
J906_BUS[0:26]
J408
21
4th 1st
TAG
TAG4 TAG3 TAG 2
29282726252423222120191817161514131211
/VDO10
SGND
VDO10
8
7
6
5
4
J801_BUS[0:8]
3
2
1
D7
GND
1011121314151617181920212223242526
Control panel
Driver PCA
J406
12
+24VA
FEEDSL
21
SL
SL705
S8
S7
(W)
(R)
VIN
VIN
VSS3
VSS4
J124
Control panel
8
J904
(GY)
(OR)
(SB)
(Y)
(GY)
(OR)
(SB)
(Y)
(GR)
(BR)
5V
24V
NIRQ
NRESET
J407
3rd
TAG
S5S6S4
(R)
(W)
VIN
VSS2
SCLK
CPIN
56789
4
12
+24VA
DEVSL
12
SL
SL706
VSS1
J336B
J335B
J331B
J332B
J336
J335
J331
J332
J333
J334
GND
2nd
TAG TAG
S3
(W)
(R)
VIN
12345678
3.3V
CPOUT
123
J402
PGND
FM1
TAG1
S2
S1
(W)
(R)
J103
SGND
11 10 9 8 2345617
power supply PCA
(BL)
231
FANPWM
FANLK
321
SGND
VCTRLOFF
J320
Low-voltage
J311
J312
(R)
+24VA
PGND
21
J401
J403
+24VA
+24VA
98 2345617
SR606
SW801
J802
J801
J803
J805
J804
J151
J152
J153
(BL)
(W)
(R)
(BL)
(BK)
(R)
(W)
(GN)
SGND
PWR_LED
+3.3VA
LED-CLK
/PWRSWON
+3.3VB
SGND
DHPSNS
12345
123
J131
J120
1110982345617
+24VA
+24VA
+3.3VA
+3.3VA
PGND
PGND
REM24V
PWSV
COR1
NEUTRAL2
J301
LIVE2
(BK)
J302
(BK)
LIVE1
1
SOLD90
2
3
NEUTRAL1
J290
SOLD93
J404
4321
982345617
(GN)
(GN)
(GN)
(GN)
PGND
FSRMBOUT
+24VA
PGND
M701
/FSRMBOUT
/FSRMAOUT
FSRMAOUT
/MAINMACC
/MAINMDEC
PGND
/MAINMFG
1234
J701
J703
M MM
M703
SW1
21
S10
S9
DOPENF
SGND
12
J130
J105
123456
RLD+
RLD-
FREQSNS
SGND
FSRD+
FSRD-
123456
J203
MMI2-6P
Fuser power supply PCA
(W)
J202
1
2
3
J211
(W)
J212
J405
1234
(GN)
(GN)
(GN)
(GN)
/FEEDAOUT
FEEDBOUT
FEEDAOUT
/FEEDBOUT
4321
J702
M702
ITB assembly
Registration ITB-perimeter
sensor
J621
1234567
+3.3VB
+3.3VB
ITBLSNS
R_DIFA
R_PWM
SGND
+24VA
15 14 13 12 11109 8 2345617
J119
J104
12345
MAINTH
FU NEUTRAL
J201A
231
FU LIVE
RD_PWM
RD_GAIN1
+3.3VB
SGND
+24VA
SGND
SGND
PWRSNS
+3.3VB
J951
J802D
TB1A
Registration density
sensor
J611
12345678
RD_DIFA
RD_REGA
RD_GAIN0
SR611
123
12
21
J802L
J802H
21
21
TP1A
J801A
12
TP
TB2A
SR609
SR610
Fuser sensor PCA
Environment sensor PCA
H801A
SR603 SR602
J603
123
(GN)
(GN)
(GN)
Fuser
2
TH802
1
J810
4
FDSNS
3
PWLSNS
SGND
12
+3.3VB
SGND
J172
TEMPSNS
J171
J602
321
(GY)
(GY)
(GY)
LOOPSNS
SGND
SGND
SGND
+3.3VB
+3.3VB
REGSNS
CSTSNS
98 2345617
J116
TEMPSNS
SGND
252423222120191716151413121110
(BL)
(GY)
(OR)
(GN)
(V)
(V)
SR601
J163
J162
J161
FLASH
J1127
(BL)
(W)
(R)
12345
TCK
P81
MODE2
J115_BUS[0:25]
SGND
FPRSNS
DOPENR
54321
J115
25
12
101113151617181920
ICLRSNS
ICLBSNS
TR1S
TNR4
TR2S
+3.3VB
18
J1001
P80
J127
14
TNR3
TNR2
TNR1
+3.3VB
412356789
FDSNS
PWLSNS
J1001_BUS[0:25]
High-voltage power supply PCA
SR608
PRI :J2101-J2102
BLD1:J2321-J2322
DEV1:J2221-J2222
BLD2:J2341-J2342
DEV2:J2241-J2242
J1024
BLD3:J2361-J2362
J1023
DEV3:J2261-J2262
J1022
TR1_1 :J2401-J2402
TR1_23:J2451-J2452
J1021
TR1_4 :J2551-J2552
TR2 :J2601-J2602
BLD4:J2381-J2382
DEV4:J2281-J2282
ICLB:J2701-J2702
ICLR:J2801-J2802
RS1 :J221-J222
RS2 :J241-J242
RS3 :J261-J262
RS4 :J281-J282
J1011
J1012
IOT
J1126
/TESTPRT
SGND
MODE0
IOTT
J126
21
/HVRESET
HVDATA1
DEVCLK
HVDALD
HVDACLK
9876532
SR607
654321
SGND
IOTR
+3.3VA
123456
25
222324
PGND
PGND
+24VA
+24VA
1
4
ENWW
Tools for troubleshooting
37
Internal print-quality test pages
Interpret the Print Quality Page
1. On the product control panel, open the Reports menu.
2. Select the Print Quality Page item to print it.
This page contains five bands of color, which are divided into four groups as indicated in the following
illustration. By examining each group, you can isolate the problem to a particular print cartridge.
Section Print-cartridge
1Yellow
2Cyan
3Black
4Magenta
If dots or streaks appear in only one of the groups, replace the print cartridge that correlates with
●
that group.
If dots appear in more than one group, print a cleaning page. If this does not solve the problem,
●
determine if the dots are always the same color; for example, if magenta dots appear in all five
color bands. If the dots are all the same color, replace that print cartridge.
If streaks appear in multiple color bands, contact HP. A component other than the print cartridge is
●
probably causing the problem.
Print a cleaning page
Print a cleaning page to remove dust and excess toner from the paper path if you are having any of the
following problems:
Specks of toner are on the printed pages.
●
Toner is smearing on the printed pages.
●
Repeated marks occur on the printed pages.
●
38 Chapter 2 Solve problems ENWW
Print a cleaning page (LCD control panel)
NOTE: This section applies to the HP LaserJet Pro 200 color M251n Printer model only.
1. On the control panel, press the OK button to open the menus.
2. Open the following menus:
Service
●
Cleaning Page
●
3. Load plain paper in Tray 1, and then press the OK button to start the cleaning process.
4. The product prints the first side and then prompts you to remove the page from the output bin and
reload it in Tray 1, keeping the same orientation (the side with the black stripe should be facedown with the arrow toward the back of the product).
5. Press the OK button to continue the cleaning process. Wait until the process is complete. Discard
the page that prints.
Print a cleaning page (touchscreen control panel)
NOTE: This section applies to the HP LaserJet Pro 200 color M251nw Printer model only.
1. From the Home screen on the product control panel, touch the Setup button.
2. Touch the Service menu.
3. Touch the Cleaning Page button.
4. Load plain letter or A4 paper when you are prompted.
5. Touch the OK button to begin the cleaning process.
6. The product prints the first side and then prompts you to remove the page from the output bin and
reload it in Tray 1, keeping the same orientation (the side with the black stripe should be facedown with the arrow toward the back of the product).
7. Press the OK button to continue the cleaning process. Wait until the process is complete. Discard
the page that prints.
Configuration page
Print a configuration page (LCD control panel)
NOTE: This section applies to the HP LaserJet Pro 200 color M251n Printer model only.
ENWW
Tools for troubleshooting
39
The configuration page lists current product settings and properties. This page also contains a status log
report. To print a configuration page, do one of the following:
1. Press OK to open the menus.
2. Press the left arrow
or right arrow button to navigate to Reports, and then press the OK
button.
3. Press the left arrow
or right arrow button to navigate to the Configuration Page report, and
then press the OK button to print the report.
4. Press Cancel X to exit the menus.
Print a configuration page (touchscreen control panel)
NOTE: This section applies to the HP LaserJet Pro 200 color M251nw Printer model only.
1. From the Home screen on the product control panel, touch the Setup button.
2. Touch the Reports button.
3. Touch Configuration Report.
40 Chapter 2 Solve problems ENWW
Print-quality troubleshooting tools
Repetitive image defects
If the product output has a consistent, repetitive defect, use the table in this section to determine which
part needs to be replaced based on the measured distance between the repetitions of the defect.
Repetitive defects for the ITB normally appear on every other page because the ITB is longer than a
page. However, the period of the repetitive defect can vary depending on the type of media, and a
repetitive defect can occur more than once on the same page.
NOTE: The following table replaces the graphical repetitive defect ruler. You can make your own
ruler by using these measurements. For the most accurate results, use a metric ruler.
Table 2-3 Repetitive image defects
Distance between identical defects Component Notes
22.3 mm (0.87 in) Developer roller (one rotation) Appears in a single color plane.
26.7 mm (1.05 in) Charge roller (one rotation) Appears in a single color plane.
28.5 mm (1.12 in) RS roller (one rotation) Appears in a single color plane.
44.0 mm (1.73 in) Registration roller
56.5 mm (2.22 in) Fuser film (one rotation) Appears in all color planes.
59.7 mm (2.35 in) Fuser pressure roller (one rotation) Appears in all color planes.
56.5 mm (2.22 in) Transfer roller Appears in all color planes.
69.0 mm (2.71 in) Cartridge-to-cartridge spacing Distance between each color OPC.
75.8 mm (2.98 in) OPC drum (one rotation) Appears in a single color plane and
633.6 mm (24.94 in) ITB Because the ITB is longer than a
69.0 mm (2.71 in) ITB drive roller pitch
Calibrate the product to align the colors
If the printed output has colored shadows, blurry graphics, or areas that have poor color, you might
need to calibrate the product to align the colors. Print the Diagnostics Page from the Reports menu on
the control panel to check the color alignment. If the blocks of color on that page are not aligned with
each other, you need to calibrate the product.
1. On the product control panel, open the System Setup menu.
might be either a dark or white spot.
page, you might have to look at
multiple pages to determine if a
repetitive defect is present.
ENWW
2. Open the Print Quality menu, and select the Color Calibration item.
3. Select the Calibrate Now option.
Tools for troubleshooting
41
Control-panel menus
Setup Menu
To open this menu, touch the Setup button. The following sub menus are available:
HP Web Services
●
Reports
●
Self Diagnostics
●
System Setup
●
Service
●
Network Setup
●
Quick Forms
●
HP Web Services
Menu item Description
Enable Web Services Use Enable Web Services to set up Web Services on the
product.
NOTE: You must be connected to a network to enable
HP Web Services.
Proxy Settings The Proxy Settings sub-menu includes the following:
Proxy Server
●
Proxy Port
●
Username
●
Password
●
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Reports menu
Menu item Description
Demo Page Prints a page that demonstrates print quality
Menu Structure Prints a control-panel menu layout map
Configuration Report Prints a list of the product settings
Supplies Status Prints the Supplies Status report. This report includes the following information:
Network Summary Prints the Network Summary report. This report includes the following information:
Approximate pages remaining
●
Supply level
●
Serial number
●
Number of pages printed
●
First install date
●
Last used date
●
Network hardware configuration
●
Enabled features
●
TCP/IP and SNMP information
●
Network statistics
●
Wireless network configuration (wireless models only)
●
Usage Page Displays the number of pages printed by the product
PCL Font List Prints a list of all installed PCL 5 fonts
PS Font List Prints a list of all installed PS fonts
PCL6 Font List Prints a list of all installed PCL 6 fonts
Color Usage Log Prints information about the color supply usage
Service Page Prints the service page
The service page includes information about supported paper types, copy settings, and other
settings that are not included on the configuration page.
Diagnostics Page Prints diagnostic information about calibration and color quality
Print Quality Page Prints a page that helps solve problems with print quality
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Tools for troubleshooting
43
Self Diagnostics menu
Menu item Description
Run Network Test The network test provides information on the following:
Diagnostics summary
●
Troubleshooting
●
Configuration summary
●
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System Setup menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Menu item Sub-menu item Sub-menu item Description
Language (List of available
control-panel
display languages.)
Paper Setup Default Paper Size Letter
Default Paper Type Lists available
Tray 1 Paper Type
Paper Out Action Wait forever*
Sets the language in which the control panel displays
A4
Legal
paper types.
Paper Size
Cancel
Override
messages and product reports.
Sets the size for printing internal reports or any print job
that does not specify a size.
NOTE: The default setting is determined by the choice of
location during the initial product setup.
Sets the type for printing internal reports or any print job
that does not specify a type.
Configures the size and type for the tray.
Determines how the product reacts when a print job
requires a paper size or type that is unavailable or when
the tray is empty.
Wait forever: The product waits until you load the
●
correct paper.
Override: Print on a different size paper after a
●
specified delay.
Cancel: Automatically cancel the print job after a
●
specified delay.
Print Quality Color Calibration Calibrate Now
Power-On
Calibration
If you select either the Override or Cancel item, the
●
control panel prompts you for the number of seconds
to delay.
Performs a full calibration.
Calibrate Now: Performs an immediate calibration.
●
Power-On Calibration: Specify the length of time the
●
product should wait after you turn it on before it
calibrates.
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Tools for troubleshooting
45
Menu item Sub-menu item Sub-menu item Description
Energy Settings Sleep Delay Off
1 Minute
15 Minutes*
30 Minutes
1 Hour
2 Hours
Auto Power Down Power Down Delay Set the amount of elapsed time before the product turns
Specifies the amount of idle time before the product enters
sleep mode.
itself off. The options are:
Never
●
30 Minutes
●
1 Hour
●
2 Hours
●
4 Hours
●
8 Hours
●
24 Hours
●
Wake Events Select the events that bring the product out of sleep mode.
The following events are available for selection:
USB Job
●
LAN Job
●
Wireless Job
●
Control Panel Touch
●
USB Drive Insert
●
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Menu item Sub-menu item Sub-menu item Description
Supply Settings Black Cartridge Very Low Setting Stop
Prompt*
Continue
Low Threshold Enter a percentage for the low threshold setting.
Color Cartridges Very Low Setting Stop: The product stops printing until you replace the print
cartridge.
Prompt*: The product stops printing and prompts you to
replace the print cartridge. You can acknowledge the
prompt and continue printing.
Continue: The product alerts you that the print cartridge is
very low, but it continues printing.
Print Black: When a color print cartridge becomes very low,
the product prints in black. When you choose to replace the
very low print cartridge, color printing resumes
automatically. To configure the product to print in color and
use the remaining toner in the print cartridge past very low,
follow these steps:
1.
On the product control panel, touch the Setup
button, and then touch the System Setup button.
Low Threshold Set a low threshold percentage setting for the following
Store Usage Data Select where to store the product's usage data, either on the
Administration Product Security On
Off*
USB Flash Drive On*
Off
Courier Font Regular*
Dark
Sets Courier font values.
2. Touch the At Very Low button, and then touch the
Color Cartridges button. Touch the Continue button.
colors:
Cyan
●
Magenta
●
Yellow
●
supplies or not on the supplies.
Sets the product-security feature. If you select the On setting,
you must set a password.
Enables or disables the USB flash drive.
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Tools for troubleshooting
47
Service menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Menu item Sub-menu item Sub-menu item Description
Cleaning Page Cleans the product when
specks or other marks appear
on printed output. The cleaning
process removes dust and
excess toner from the paper
path.
When selected, the product
prompts you to load plain
Letter or A4 paper in Tray 1.
Touch the OK button to begin
the cleaning process. Wait
until the process completes.
Discard the page that prints.
USB Speed High*
Full
Less Paper Curl On
Off*
Archive Print On
Off*
Firmware
Datecode
Restore Defaults Sets all settings to the factory
Displays the current firmware
Sets the USB speed for the USB
connection to the computer.
For the product to actually
operate at high speed, it must
have high speed enabled and
be connected to an EHCI host
controller that is also operating
at high speed. This menu item
does not reflect the current
operating speed of the
product.
When printed pages are
consistently curled, this option
sets the product to a mode that
reduces curl.
When printing pages that will
be stored for a long time, this
option sets the product to a
mode that reduces toner
smearing and dusting.
datecode
default values
Signature Check Cancel if Invalid*
Prompt if Invalid
HP Smart Install On*
Off
Validates HP firmware
downloads.
Enable, or disable, the
HP Smart Install feature on the
product.
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Menu item Sub-menu item Sub-menu item Description
LaserJet Update Check for Updates Now Install Now
Remind Me Later
Skip this Update
Manage Updates Allow Downgrade
Check Automatically
Prompt Before Install
Allow Updates
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49
Network Setup menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Menu item Sub-menu item Description
Wireless Menu (wireless
models only)
TCP/IP Config Automatic*
Network Services IPv4
Link Speed Automatic*
Wireless Direct Settings Manage the product's wireless direct settings.
Wireless Setup Wizard Guides you through the steps to set up the product on a wireless
Wi-Fi Protected Setup If your wireless router supports this feature, use this method to set
Run Network Test Tests the wireless network and prints a report with the results.
Turn Wireless On/Off Enables or disables the wireless network feature.
Manual
IPv6
10T Full
network
up the product on a wireless network. This is the simplest method.
Automatic: The product automatically configures all the TCP/IP
settings via DHCP, BootP or AutoIP.
Manual: You can manually configure the IP address, subnet mask,
and default gateway. The control panel prompts you to specify
values for each address section. As each address is completed,
the product prompts for address confirmation before moving to the
next one. After all three addresses are set, the network
reinitializes.
Enable or disable the IPv4 and IPv6 protocols. By default, each
protocol is enabled.
Sets the link speed manually if needed.
After setting the link speed, the product automatically restarts.
10T Half
100TX Full
100TX Half
HTTPS Enforcement Yes
*No
Restore Defaults Resets all network configurations to their factory defaults.
An encrypted communication and secure identification of a
network web server. Only enabled if printer is password
protected.
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Quick Forms menu
Menu item Sub-menu item Description
Notebook Paper Narrow Rule
Wide Rule
Child Rule
Graph Paper 1/8 inch
5 mm
Checklist 1-Column
2-Column
Music Paper Portrait
Landscape
Prints pages that have preprinted lines
Prints pages that have preprinted graph lines
Prints pages that have preprinted lines with check boxes
Prints pages that have preprinted lines for writing music
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51
Function specific menus
The product features function-specific menus for copying and using a USB flash drive. To open these
menus, touch the button for that function on the control panel.
Apps
Use the Apps menu to install HP Web Services applications.
USB Flash Drive
The following types are supported:
.PDF
●
.JPG
●
Menu item Description
Print Documents Prints documents stored on the USB flash drive. Use the arrow
buttons to scroll through the documents. Touch the names of
documents to print.
Touch the summary screen to change settings such as the
number of copies, the paper size, or the paper type.
Touch the Print button to print the documents.
View and Print Photos Previews photos on the USB flash drive. Use the arrow buttons
to scroll through the photos. Touch the preview image for each
photo to print. Adjust the settings, and save the changes as
the new default settings.To print the photos, touch the Print
button.
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Interpret control panel messages
Control panel message types
The control panel messages indicate the current product status or situations that might require action.
Alert and warning messages appear temporarily and might require you to acknowledge the messages
by touching the OK button to resume the job or by touching the Cancel
With certain warnings, the job might not complete or the print quality might be affected. If the alert or
warning message is related to printing and the auto-continue feature is on, the product will attempt to
resume the printing job after the message has appeared for 10 seconds without acknowledgement.
Critical error messages can indicate some kind of failure. Turning off and then turning on the power
might fix the problem. If a critical error persists, the product might require service.
Control panel messages
10.X00Y Supply Error
Description
The memory chip for one of the toner cartridges cannot be read or is missing.
10.0000 = black memory chip error
◦
button to cancel the job.
10.0001 = cyan memory chip error
◦
10.0002 = magenta memory chip error
◦
10.0003 = yellow memory chip error
◦
10.1000 = black memory chip is missing
◦
10.1001 = cyan memory chip is missing
◦
10.1002 = magenta memory chip is missing
◦
10.1003 = yellow memory chip is missing
◦
Recommended action
Reinstall the toner cartridge.
Turn the product off and then on.
If the problem is not solved, replace the toner cartridge.
If the problem is still not solved, verify that the connector J124 on the DC controller is firmly seated.
Replace the DC controller.
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49 Error, Turn off then on
Description
The product experienced an internal error.
Recommended action
Turn the product off, wait at least 30 seconds, and then turn the product on and wait for it to initialize.
If you are using a surge protector, remove it. Plug the product directly into the wall socket. Turn the
product power on.
If the message persists, contact HP support.
50.x Fuser Error
Description
The product has experienced an error with the fuser.
Recommended action
Turn the product power off, wait at least 30 seconds, and then turn the product power on and wait for
it to initialize.
Turn off the product, wait at least 25 minutes, and then turn on the product.
If you are using a surge protector, remove it. Plug the product directly into the wall socket. Turn the
product power on.
If the message persists, contact HP support.
51.XX Error
Description
The product has experienced an internal hardware error.
Recommended action
Turn the product power off, wait at least 30 seconds, and then turn the product power on and wait for
it to initialize.
If you are using a surge protector, remove it. Plug the product directly into the wall socket. Turn the
product on.
If the message persists, contact HP support.
54.XX Error
Description
The product has experienced an error with one of the internal sensors.
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Recommended action
Turn the product power off, wait at least 30 seconds, and then turn the product power on and wait for
it to initialize.
If you are using a surge protector, remove it. Plug the product directly into the wall socket. Turn the
product power on.
If the message persists, contact HP support.
55.X Error
Description
The product has experienced an internal error.
Recommended action
Turn the product power off, wait at least 30 seconds, and then turn the product power on and wait for
it to initialize.
If you are using a surge protector, remove it. Plug the product directly into the wall socket. Turn the
product power on.
If the message persists, contact HP support.
57 Fan Error, Turn off then on
Description
The product has experienced a problem with its internal fan.
Recommended action
Turn the product power off, wait at least 30 seconds, and then turn the product power on and wait for
it to initialize.
If you are using a surge protector, remove it. Plug the product directly into the wall socket. Turn the
product power on.
If the message persists, contact HP support.
59.X Error
Description
The product has experienced a problem with one of the motors.
Recommended action
Turn the product power off, wait at least 30 seconds, and then turn the product power on and wait for
it to initialize.
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If you are using a surge protector, remove it. Plug the product directly into the wall socket. Turn the
product power on.
Tools for troubleshooting
55
If the message persists, contact HP support.
79 Error Turn off then on
Description
The product has experienced an internal firmware error.
Recommended action
Turn the product power off, wait at least 30 seconds, and then turn the product power on and wait for
it to initialize.
If you are using a surge protector, remove it. Plug the product directly into the wall socket. Turn the
product power on.
If the message persists, contact HP support.
Black Cartridge Low
Description
The toner cartridge is at the end of its useful life. A customer configurable option on this product is
"Prompt to Remind Me in 100 pages, 200 pages, 300 pages, 400 pages, or never." This option is
provided as a customer convenience and is not an indication these pages will have acceptable print
quality.
Recommended action
Printing can continue, but consider having a replacement supply on hand.
Black in wrong position
Description
The toner cartridge is installed in the incorrect slot.
Recommended action
Ensure that each toner cartridge is installed in the correct slot. From front to back, the toner cartridges
are installed in this order: black, cyan, magenta, and yellow.
Black Very Low
Description
The toner cartridge is at the end of its useful life. A customer configurable option on this product is
"Prompt to Remind Me in 100 pages, 200 pages, 300 pages, 400 pages, or never." This option is
provided as a customer convenience and is not an indication these pages will have acceptable print
quality.
Recommended action
To ensure optimal print quality, HP recommends replacing the toner cartridge at this point. You can
continue printing until you notice a decrease in print quality. Actual cartridge life might vary.
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Once an HP supply has reached Very Low, HP’s Premium Protection Warranty on that supply has
ended. All print defects or cartridge failures incurred when an HP supply is used in Continue at very
low mode will not be considered to be defects in materials or workmanship in the supply under the
HP Print Cartridge Warranty Statement.
Cleaning
Description
The product periodically performs a cleaning procedure to maintain the best print quality.
Recommended action
Wait for the cleaning process to finish.
Cyan Cartridge Low
Description
The toner cartridge is nearing the end of its useful life.
Recommended action
Printing can continue, but consider having a replacement supply on hand.
Cyan in wrong position
Description
The toner cartridge is installed in the incorrect slot.
Recommended action
Ensure that each toner cartridge is installed in the correct slot. From front to back, the toner cartridges
are installed in this order: black, cyan, magenta, and yellow.
Cyan Very Low
Description
The toner cartridge is at the end of its useful life. A customer configurable option on this product is
"Prompt to Remind Me in 100 pages, 200 pages, 300 pages, 400 pages, or never." This option is
provided as a customer convenience and is not an indication these pages will have acceptable print
quality.
Recommended action
To ensure optimal print quality, HP recommends replacing the toner cartridge at this point. You can
continue printing until you notice a decrease in print quality. Actual cartridge life might vary.
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Once an HP supply has reached Very Low, HP’s Premium Protection Warranty on that supply has
ended. All print defects or cartridge failures incurred when an HP supply is used in Continue at very
low mode will not be considered to be defects in materials or workmanship in the supply under the
HP Print Cartridge Warranty Statement.
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57
Device error, press OK
Description
An internal error occurred.
Recommended action
Touch the OK button to resume the job.
Door open
Description
The product front door is open.
Recommended action
Close the door.
Genuine HP supply installed
Description
A genuine HP supply was installed.
Recommended action
No action necessary.
Incompatible <color>
Description
You have installed a toner cartridge that is intended for use in a different HP product model. The
product might not function correctly with this toner cartridge installed.
Recommended action
Install the correct toner cartridge for this product.
Incorrect supplies
Description
More than one toner cartridge is installed in the incorrect slot.
Recommended action
Be sure that each toner cartridge is in the correct slot. From front to back, the toner cartridges are
installed in this order: black, cyan, magenta, yellow.
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Install <color> cartridge
Description
The toner cartridge is either not installed or not correctly installed in the product.
Recommended action
Install the toner cartridge.
Invalid driver Press [OK]
Description
You are using an incorrect printer driver.
Recommended action
Select the correct printer driver.
Jam in Tray 1, Clear jam and then press OK
Description
The product has detected a jam.
Recommended action
Clear the jam from the tray, and then touch OK.
If the message persists, contact HP support.
Load tray 1 Press [OK] for available media
Description
The tray is empty.
Recommended action
Load paper into the tray to continue printing. Touch the OK button to select a different tray.
Load Tray 1 <TYPE> <SIZE>, Press OK to use available media
Description
The tray is not configured for the paper type and size that the print job is requesting.
Recommended action
Load the correct paper into Tray 1. Or touch the OK button to use the paper currently in the tray.
Load Tray 1, <PLAIN> <SIZE> / Cleaning mode, OK to start
Description
The product is ready to process the cleaning operation.
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59
Recommended action
Load Tray 1 with plain paper in the size indicated, and then touch the OK button.
Magenta Cartridge Low
Description
The toner cartridge is nearing the end of its useful life.
Recommended action
Printing can continue, but consider having a replacement supply on hand.
Magenta in wrong position
Description
The toner cartridge is installed in the incorrect slot.
Recommended action
Ensure that each toner cartridge is installed in the correct slot. From front to back, the toner cartridges
are installed in this order: black, cyan, magenta, and yellow.
Magenta Very Low
Description
The toner cartridge is at the end of its useful life. A customer configurable option on this product is
"Prompt to Remind Me in 100 pages, 200 pages, 300 pages, 400 pages, or never." This option is
provided as a customer convenience and is not an indication these pages will have acceptable print
quality.
Recommended action
To ensure optimal print quality, HP recommends replacing the toner cartridge at this point. You can
continue printing until you notice a decrease in print quality. Actual cartridge life might vary.
Once an HP supply has reached Very Low, HP’s Premium Protection Warranty on that supply has
ended. All print defects or cartridge failures incurred when an HP supply is used in Continue at very
low mode will not be considered to be defects in materials or workmanship in the supply under the
HP Print Cartridge Warranty Statement.
Manual Duplex Load Tray 1, Press OK
Description
The first side of a manual duplex job has printed, and the page needs to be loaded to process the
second side.
Recommended action
Load the page in the indicated tray with the side to be printed face up, and the top of the page away
from you, and then touch the OK button.
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Memory is low. Press OK.
Description
The product memory is almost full.
Recommended action
Touch the OK button to finish the job, or touch the Cancel
Break the job into smaller jobs that contain fewer pages.
Misprint, Press OK
Description
Paper has been delayed as it moves through the product.
Recommended action
Touch the OK button to clear the message.
To avoid this problem, try the following solutions:
1. Adjust the paper guides in the tray. Ensure the front paper guide is pushing the paper against the
back edge of the tray.
2. Use paper that meets HP specifications. Store paper unopened in its original packaging.
3. Use the product in an area that meets the environmental specifications for this product.
Print failure, press OK. If error repeats, turn off then on.
Description
button to cancel the job.
The product cannot process the page.
Recommended action
Touch the OK button to continue printing the job, but output might be affected.
If the error persists, turn the power off and then on. Resend the print job.
Rear door open
Description
The product rear door is open.
Recommended action
Close the door.
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61
Remove shipping lock from <color> cartridge
Description
A toner cartridge shipping lock is installed.
Recommended action
Pull the orange tab to remove the shipping lock from the cartridge.
Remove shipping locks from cartridges
Description
A toner cartridge shipping lock is installed on one or more toner cartridges.
Recommended action
Pull the orange tab to remove the shipping lock from the cartridge.
Replace <color>
Description
The toner cartridge is at the end of its useful life, and the product is customer-configured to stop printing
when it reaches the very low state.
Recommended action
To ensure optimal print quality, HP recommends replacing the toner cartridge at this point. You can
continue printing until you notice a decrease in print quality. Actual cartridge life might vary. Once an
HP supply has reached Very Low, HP’s Premium Protection Warranty on that supply has ended. All
print defects or cartridge failures incurred when an HP supply is used in Continue at very low mode will
not be considered to be defects in materials or workmanship in the supply under the HP Print Cartridge
Warranty Statement.
Supplies low
Description
More than one toner cartridge is nearing the end of its useful life.
Recommended action
Check the supply level gauges on the control panel, or print a supplies status page to determine which
toner cartridges are low.
Printing will continue until a Very Low message displays. Consider having replacement supplies on
hand.
Unexpected size in tray 1 Load <size> Press [OK]
Description
The product has detected paper in the tray that does not match the configuration for the tray.
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Recommended action
Load the correct paper into the tray, or configure the tray for the size that you have loaded.
Unsupported <color> Press [OK] to continue
Description
The product has detected a toner cartridge that was not made by HP.
Recommended action
Touch the OK button to continue printing.
If you believe you purchased an HP supply, go to
that are required as a result of using unsupported supplies is not covered under HP warranty.
Used <color> in use
Description
You are using a toner cartridge that reached the default low threshold while it was installed in a
product.
Recommended action
Printing can continue, but consider having a replacement supply on hand.
Used <color> installed, to accept press OK
Description
You have installed a toner cartridge that reached the default low threshold while it was installed in
another product.
Recommended action
Touch the OK button to continue.
www.hp.com/go/anticounterfeit. Service or repairs
Used supplies in use
Description
You are using more than one toner cartridge that reached the default low threshold while it was
installed in a product.
Recommended action
Printing can continue, but consider having replacement supplies on hand.
Yellow Cartridge Low
Description
The toner cartridge is nearing the end of its useful life.
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63
Recommended action
Printing can continue, but consider having a replacement supply on hand.
Yellow in wrong position
Description
The toner cartridge is installed in the incorrect slot.
Recommended action
Ensure that each toner cartridge is installed in the correct slot. From front to back, the toner cartridges
are installed in this order: black, cyan, magenta, and yellow.
Yellow Very Low
Description
The toner cartridge is at the end of its useful life. A customer configurable option on this product is
"Prompt to Remind Me in 100 pages, 200 pages, 300 pages, 400 pages, or never." This option is
provided as a customer convenience and is not an indication that these pages will have acceptable
print quality.
Recommended action
To ensure optimal print quality, HP recommends replacing the toner cartridge at this point. You can
continue printing until you notice a decrease in print quality. Actual cartridge life might vary.
Once an HP supply has reached Very Low, HP’s Premium Protection Warranty on that supply has
ended. All print defects or cartridge failures incurred when an HP supply is used in Continue at very
low mode will not be considered to be defects in materials or workmanship in the supply under the
HP Print Cartridge Warranty Statement.
Event-log messages
The following product events do not produce a message that appears on the control panel. Instead,
they are recorded in the event log. To print the event log, open the secondary service menu, select
Service Reports, and then select Error Report.
Table 2-4 Event-log messages
Event code Description
10.0000 Black e-label error
10.0001 Cyan e-label error
10.0002 Magenta e-label error
10.0003 Yellow e-label error
10.0004 Imaging drum e-label error
10.1000 Black e-label missing
10.1001 Cyan e-label missing
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Table 2-4 Event-log messages (continued)
Event code Description
10.1002 Magenta e-label missing
10.1003 Yellow e-label missing
10.1004 Imaging drum e-label missing
10.3000 Non-HP black
10.3001 Non-HP cyan
10.3002 Non-HP magenta
10.3003 Non-HP yellow
10.3004 Non-HP drum
10.3100 Non-HP cloned black
10.3101 Non-HP cloned cyan
10.3102 Non-HP cloned magenta
10.3103 Non-HP cloned yellow
10.3104 Non-HP cloned imaging drum
10.3200 Unauthorized black supply
10.3201 Unauthorized cyan supply
10.3202 Unauthorized magenta supply
10.3203 Unauthorized yellow supply
10.3300 Used (moved) black supply
10.3301 Used (moved) cyan supply
10.3302 Used (moved) magenta supply
10.3303 Used (moved) yellow supply
10.3400 Used (beyond life) black supply
10.3401 Used (beyond life) cyan supply
10.3402 Used (beyond life) magenta supply
10.3403 Used (beyond life) yellow supply
10.3500 Incompatible black supply
10.3501 Incompatible cyan supply
10.3502 Incompatible magenta supply
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10.3503 Incompatible yellow supply
10.4000 Genuine HP supplies installed (transition caused by black)
10.4001 Genuine HP supplies installed (transition caused by cyan)
10.4002 Genuine HP supplies installed (transition caused by magenta)
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65
Table 2-4 Event-log messages (continued)
Event code Description
10.4003 Genuine HP supplies installed (transition caused by yellow)
10.4100 Unsupported black supply
10.4101 Unsupported cyan supply
10.4102 Unsupported magenta supply
10.4103 Unsupported yellow supply
10.7000 Printing past very low black
10.7001 Printing past very low cyan
10.7002 Printing past very low magenta
10.7003 Printing past very low yellow
10.7100 Printing black only
10.8100 Not printing black only
10.9531 Unspecified supply error in Toner Collection Unit
10.9800 Waste Toner Out (full) black
10.9801 Waste Toner Out (full) cyan
10.9802 Waste Toner Out (full) magenta
10.9803 Waste Toner Out (full) yellow
13.0000 Paper jam
13.1200 External device paper jam (13.12XX)
20.0000 Memory out in print
20.0001 Memory out in copy
20.0002 Memory out in scan
20.0003 Memory out in photo
20.0006 Memory out in scan calibration
21.0000 Page punt
25.0000 SMTP error
30.0012 Scanner motor test failure
41.2000 Beam detect malfunction
41.3000 Unexpected size
50.0000 Fuser error
50.1000 Low fuser temperature error
50.1100 High subthermistor area 3 fuser error
50.1200 Low subthermistor area 3 fuser error
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Table 2-4 Event-log messages (continued)
Event code Description
50.2000 Slow fuser error
50.3000 High fuser temperature error
50.4000 Fuser drive circuit error
50.7000 Fuser open error
50.8000 Low subthermistor fuser error
50.9000 High subthermistor fuser error
51.0000 Beam detect or laser error
51.2000 Black scanner laser error (inline devices only)
51.2100 Cyan scanner laser error (inline devices only)
51.2200 Magenta scanner laser error (inline devices only)
51.2300 Yellow scanner laser error (inline devices only)
52.0000 Scanner error
54.0100 Environmental sensor error
54.0600 Density sensor error
54.0700 Yellow drum phase control sensor error
54.0800 Magenta drum phase control sensor error
54.0900 Cyan drum phase control sensor error
54.1000 Black drum phase control sensor error
54.1100 Black density out of range
54.1101 Cyan density out of range
54.1102 Magenta density out of range
54.1103 Yellow density out of range
54.1200 Black density measurement abnormality
54.1201 Cyan density measurement abnormality
54.1202 Magenta density measurement abnormality
54.1203 Yellow density measurement abnormality
54.1400 Color plane registration sensor error (inline devices only)
54.1599 Black CPR pattern can't be read
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54.1501 Cyan CPR pattern can't be read
54.1502 Magenta CPR pattern can't be read
54.1503 Yellow CPR pattern can't be read
54.1500 Yellow toner level sensor error
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67
Table 2-4 Event-log messages (continued)
Event code Description
54.1600 Magenta toner level sensor error
54.1700 Cyan toner level sensor error
54.1800 Black toner level sensor error
54.1900 Bad TOP sensor
54.2000 Carousel rotation error
54.2100 BD error
54.2500 TOP sensor error
54.2800 Density sensor or CPR contamination warning (54.1C)
55.0000 Engine internal communication error
55.0601 DC controller NVRAM data error
55.0602 DC controller NVRAM access error
55.1000 DC controller memory error
55.3000 Engine/ formatter communication error
55.4000 Engine communication timeout error
55.9028 DC controller NVRAM restore
56.0100 Illegal input
57.0000 Fan motor error
57.0100 Fan motor error
57.0200 Fan error
57.0600 Fan motor error
58.0400 Low voltage power supply error
59.0160 Main motor rotation error (59.A0)
59.0192 Developer motor rotation error (59.C0)
59.0240 Transfer alientation failure (59.F0)
59.3000 Fuser motor startup error
59.4000 Fuser motor error
59.5000 Image drum motor startup error- black
59.5100 Image drum motor startup error- cyan
59.5200 Image drum motor startup error- magenta
59.5300 Image drum motor startup error- yellow
59.6000 Image drum motor rotation error- black
59.6100 Image drum motor rotation error- cyan
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Table 2-4 Event-log messages (continued)
Event code Description
59.6200 Image drum motor rotation error- magenta
59.6300 Image drum motor rotation error- yellow
59.7000 Black developer motor startup error
59.7300 Yellow developer motor startup error
59.8000 Black developer motor rotation error
59.8300 Yellow developer motor rotation error
59.9000 ETB motor start error
59.9900 T2 Clutch error
65.1200 External device operation error (65.12XX)
66.1200 External device critical error (66.12XX)
66.0015 External device communication error
79.0000 79 service, firmware exception
79.0001 79 service, firmware ASIC fault
79.0003 79 service, firmware Boba ASIC fault
79.0004 79 service, firmware memory interface fault
79.0005 79 service, firmware text write fault
49.<line #> Firmware asserts
99.0028 Download error - bad signature accepted
99.0029 Download error - bad signature canceled
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Clear jams
Jam locations
Jams can occur in these locations:
1 Output bin
2Rear door
3Input tray
Loose toner might remain in the product after a jam. This problem typically resolves itself after a few
sheets have been printed.
Clear jams in the paper input tray
CAUTION: Do not use sharp objects, such as tweezers or needle-nose pliers, to remove jams.
Damage caused by sharp objects is not covered by the warranty.
When removing jammed paper, pull it straight out from the product. Pulling jammed paper out of the
product at an angle can damage the product.
NOTE: Depending on where the jam is located, some of the following steps might not be necessary.
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1. Pull out the tray, and lift the jam access door
above the tray.
2. With both hands, grasp the paper, and
carefully pull it free from the product.
3. Replace the tray.
4. Press the OK button to continue printing.
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Clear jams from the output bin
CAUTION: Do not use sharp objects, such as tweezers or needle-nose pliers, to remove jams.
Damage caused by sharp objects will not be covered by the warranty.
1. With both hands, grasp the paper, and
carefully pull it free from the product.
Clear jams from the rear door
1. Open the rear door.
CAUTION: The fuser is located above the
rear door, and it is hot. Do not attempt to
reach into the area above the rear door until
the fuser is cool.
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2. With both hands, grasp the paper, and
carefully pull it free from the product.
NOTE: If the sheet tears, remove all
fragments before continuing. Do not use sharp
objects to remove fragments.
3. Close the rear door.
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Solve paper-handling problems
The product picks up multiple sheets of paper
If the product picks up multiple sheets of paper from the tray, try these solutions.
1. Remove the stack of paper from the tray and flex it, rotate it 180 degrees, and flip it over. Do not
fan the paper. Return the stack of paper to the tray.
2. Use only paper that meets HP specifications for this product.
3. Use paper that is not wrinkled, folded, or damaged. If necessary, use paper from a different
package.
4. Make sure the tray is not overfilled. If it is, remove the entire stack of paper from the tray,
straighten the stack, and then return some of the paper to the tray.
5. Make sure the paper guides in the tray are adjusted correctly for the size of paper. Align the
guides with the paper-size markings in the bottom of the tray.
The product does not pick up paper
If the product does not pick up paper from the tray, try these solutions.
1. Open the product and remove any jammed sheets of paper.
2. Load the tray with the correct size of paper for your job.
3. Make sure the paper guides in the tray are adjusted correctly for the size of paper. Align the
guides with the paper-size markings in the bottom of the tray.
4. Check the product control panel to see if the product is waiting for you to acknowledge a prompt
to feed the paper manually. Load paper, and continue.
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Solve image quality problems
You can prevent most print-quality problems by following these guidelines.
Use the correct paper type setting in the printer driver
●
Adjust color settings in the printer driver
●
Use paper that meets HP specifications
●
Print a cleaning page
●
Calibrate the product to align the colors
●
Check the toner cartridges
●
Use the printer driver that best meets your printing needs
●
Use the correct paper type setting in the printer driver
Check the paper type setting if you are having any of the following problems:
Toner is smearing on the printed pages.
●
Repeated marks occur on the printed pages.
●
Printed pages are curled.
●
Toner flakes off the printed pages.
●
Printed pages have small unprinted areas.
●
Change the paper type setting for Windows
1. On the File menu in the software program, click Print.
2. Select the product, and then click the Properties or Preferences button.
3. Click the Paper/Quality tab.
4. From the Paper type drop-down list, click the More... option.
5. Expand the list of Type is: options.
6. Expand each category of paper types until you find the paper type that you are using.
7. Select the option for the type of paper you are using, and click the OK button.
Change the paper type setting for Mac
1. On the File menu in the software program, click the Print option.
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2. In the Copies & Pages menu, click the Page Setup button.
3. Select a size from the Paper Size drop-down list, and then click the OK button.
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75
4. Open the Finishing menu.
5. Select a type from the Media-type drop-down list.
6. Click the Print button.
Adjust color settings in the printer driver
Change the color theme for a print job
1. On the File menu in the software program, click Print.
2. Click Properties or Preferences.
3. Click the Color tab.
4. Select a color theme from the Color Themes drop-down list.
Default (sRGB): This theme sets the product to print RGB data in raw device mode. When
●
using this theme, manage color in the software program or in the operating system for correct
rendering.
Vivid: The product increases the color saturation in the midtones. Use this theme when
●
printing business graphics.
Photo: The product interprets RGB color as if it were printed as a photograph using a digital
●
mini lab. The product renders deeper, more saturated colors differently than with the Default
(sRBG) theme. Use this theme when printing photos.
Photo (Adobe RGB 1998): Use this theme with printing digital photos that use the
●
AdobeRGB color space rather than sRGB. Turn off color management in the software
program when using this theme.
None
●
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Change the color options
Change the color options settings for the current print job from the color tab of the printer driver.
1. On the File menu in the software program, click Print.
2. Click Properties or Preferences.
3. Click the Color tab.
4. Click the Automatic or Manual setting.
Automatic setting: Select this setting for most color print jobs
●
Manual setting: Select this setting to adjust the color settings independent from other
●
settings.
NOTE: Changing color settings manually can impact output. HP recommends that only
color graphics experts change these settings.
5. Click the Print in Grayscale option to print a color document in black and white. Use this
option to print color documents for photocopying or faxing.
6. Click the OK button.
Use paper that meets HP specifications
Use different paper if you are having any of the following problems:
The printing is too light or seems faded in areas.
●
Specks of toner are on the printed pages.
●
Toner is smearing on the printed pages.
●
Printed characters seem misformed.
●
Printed pages are curled.
●
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Always use a paper type and weight that this product supports. In addition, follow these guidelines
when selecting paper:
Use paper that is of good quality and free of cuts, nicks, tears, spots, loose particles, dust,
●
wrinkles, voids, staples, and curled or bent edges.
Use paper that has not been previously printed on.
●
Use paper that is designed for use in laser printers. Do not use paper that is designed only for use
●
in Inkjet printers.
Use paper that is not too rough. Using smoother paper generally results in better print quality.
●
Print a cleaning page
Print a cleaning page to remove dust and excess toner from the paper path if you are having any of the
following problems:
Specks of toner are on the printed pages.
●
Toner is smearing on the printed pages.
●
Repeated marks occur on the printed pages.
●
Print a cleaning page (LCD control panel)
NOTE: This section applies to the HP LaserJet Pro 200 color M251n Printer model only.
1. On the control panel, press the OK button to open the menus.
2. Open the following menus:
Service
●
Cleaning Page
●
3. Load plain paper in Tray 1, and then press the OK button to start the cleaning process.
4. The product prints the first side and then prompts you to remove the page from the output bin and
reload it in Tray 1, keeping the same orientation. The side with the black stripe should be facedown with the arrow toward the back of the product.
5. Press the OK button to continue the cleaning process. When the process is complete, discard the
page that prints.
Print a cleaning page (touchscreen control panel)
NOTE: This section applies to the HP LaserJet Pro 200 color M251nw Printer model only.
1. From the Home screen on the product control panel, touch the Setup button.
2. Touch the Service menu.
3. Touch the Cleaning Page button.
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4. Load plain letter or A4 paper when you are prompted.
5. Touch the OK button to begin the cleaning process.
6. The product prints the first side and then prompts you to remove the page from the output bin and
reload it in Tray 1, keeping the same orientation (the side with the black stripe should be facedown with the arrow toward the back of the product).
7. Press the OK button to continue the cleaning process. Wait until the process is complete. Discard
the page that prints.
Calibrate the product to align the colors
If the printed output has colored shadows, blurry graphics, or areas that have poor color, you might
need to calibrate the product to align the colors. Print the Diagnostics Page from the Reports menu on
the control panel to check the color alignment. If the blocks of color on that page are not aligned with
each other, you need to calibrate the product.
1. On the product control panel, open the System Setup menu.
2. Open the Print Quality menu, and select the Color Calibration item.
3. Select the Calibrate Now option.
Check the toner cartridges
Check each toner cartridge, and replace it if any of the following problems arise:
The printing is too light or seems faded in areas.
●
Printed pages have small unprinted areas.
●
Printed pages have streaks or bands.
●
If a toner cartridge must be replaced, print the supplies status page to find the part number for the
correct genuine HP toner cartridge.
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Type of toner cartridge Steps to resolve the problem
Refilled or remanufactured toner
cartridge
Genuine HP toner cartridge 1. The product control panel or the Supplies Status page indicates Very Low
Print the Supplies Status page
Hewlett Packard Company cannot recommend the use of non-HP supplies, either
new or remanufactured. Because they are not HP products, HP cannot influence
their design or control their quality. If you are using a refilled or remanufactured
toner cartridge and are not satisfied with the print quality, replace the toner
cartridge with a genuine HP toner cartridge that includes the words “HP” or
“Hewlett-Packard”, or has the HP logo on it.
status when the toner cartridge has reached the end of its estimated life.
Replace the toner cartridge if print quality is no longer acceptable.
2. Print a Print Quality Page from the Reports menu on the control panel. If
streaks or marks are in one color on the page, the color cartridge may be
defective. See the instructions in this document for interpreting the page.
Replace the toner cartridge if necessary.
3. Visually inspect the toner cartridge for damage. See the instructions that
follow. Replace the toner cartridge if necessary.
4. If printed pages have marks that repeat several times at the same distance
apart, print a cleaning page. If this does not solve the problem, use the
repetitive defects ruler in this document to identify the cause of the problem.
The Supplies Status page indicates the estimated life remaining in print cartridges. It also lists the part
number for the correct genuine HP print cartridge for your product so you can order a replacement
print cartridge, as well as other useful information.
1. On the product control panel, open the Reports menu.
2. Select the Supplies Status page to print it.
Inspect the print cartridge for damage
1. Remove the print cartridge from the product, and verify that the sealing tape has been removed.
2. Check the memory chip for damage.
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3. Examine the surface of the green imaging drum on the bottom of the print cartridge.
CAUTION: Do not touch the green roller (imaging drum) on the bottom of the cartridge.
Fingerprints on the imaging drum can cause print-quality problems.
4. If you see any scratches, fingerprints, or other damage on the imaging drum, replace the print
cartridge.
5. If the imaging drum does not appear to be damaged, rock the print cartridge gently several times
and reinstall it. Print a few pages to see if the problem has resolved.
Repeating defects
If defects repeat at any of the following intervals on the page, a print cartridge might be damaged.
22 mm
●
27 mm
●
29 mm
●
76 mm
●
Use the printer driver that best meets your printing needs
You might need to use a different printer driver if the printed page has unexpected lines in graphics,
missing text, missing graphics, incorrect formatting, or substituted fonts.
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HP PCL 6 driver
Provided as the default driver. This driver is automatically installed unless you
●
select a different one.
Recommended for all Windows environments
●
Provides the overall best speed, print quality, and product-feature support for
●
most users
Developed to align with the Windows Graphic Device Interface (GDI) for the
●
best speed in Windows environments
Might not be fully compatible with third-party and custom software programs
●
that are based on PCL 5
HP UPD PS driver
HP UPD PCL 5
●
Recommended for printing with Adobe
highly graphics-intensive software programs
Provides support for printing from postscript emulation needs, or for postscript
●
flash font support
Recommended for general office printing in Windows environments
●
Compatible with previous PCL versions and older HP LaserJet products
●
The best choice for printing from third-party or custom software programs
●
The best choice when operating with mixed environments, which require the
●
product to be set to PCL 5 (UNIX, Linux, mainframe)
Designed for use in corporate Windows environments to provide a single
●
driver for use with multiple printer models
Preferred when printing to multiple printer models from a mobile Windows
●
computer
®
software programs or with other
Download additional printer drivers from this Web site: www.hp.com/support/ljcolorm251series.
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Solve performance problems
Factors affecting print performance
Problem Cause Solution
Pages print but, are totally blank. The sealing tape might still be in the
toner cartridges.
The document might contain blank
pages.
The product might be malfunctioning. To check the product, print a
Pages print very slowly.
NOTE: The product print speed is
effected by various factors (for example,
media size or page complexity).
Pages did not print. The product might not be pulling media
Heavier media types can slow the print
job.
Complex pages can print slowly. Proper fusing might require a slower
Paper type not set correctly. Select the type to match the paper.
correctly.
The media is jamming in the device. Clear the jam.
Verify that the sealing tape has been
completely removed from the toner
cartridges.
Check the document that is printing to
see if content appears on all of the
pages.
Configuration page.
Print on a different type of media.
print speed to ensure the best print
quality.
Ensure paper is loaded in the tray
correctly.
If the problem persists, the pickup rollers
and the separation pad may need to be
replaced.
The USB cable might be defective or
incorrectly connected.
Other devices are running on your
computer.
Disconnect the USB cable at both
●
ends and reconnect it.
Try printing a job that has printed
●
in the past.
Try using a different USB cable.
●
The product might not share a USB port.
If an external hard drive or network
switchbox is connected to the same port
as the product, the other device might
be interfering. To connect and use the
product, you must disconnect the other
device or use two USB ports on the
computer.
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Print speeds
Print speed refers to the number of pages that print in one minute. Print speed depends on different
engine-process speeds or operational pauses between printed pages during normal product operation.
Factors that determine the print speed of the product include the following:
Page formatting time
●
The product must pause for each page to be formatted before it prints. Complex pages take more
time to format, resulting in reduced print speed. However, most jobs print at full engine speed
(21 ppm on Letter-size media or 20 ppm on A4-size media).
Color mode
●
Monochrome printing (black only) provides the maximum print speed. Full color print jobs cause a
reduction in print speed.
Media size
●
Legal-size media reduces print speed because it is longer than the standard Letter- or A4–size
media. A reduced print speed is used when printing on narrow media to prevent the edges of the
fuser from overheating.
Media mode
●
Some media types require a reduced print speed to achieve maximum print quality on that media.
For example, glossy, heavy, and specialty media (for example, envelopes or photos) require a
reduced print speed. To maximize the print speed for special media types, ensure the correct
media type is selected in the print driver.
Product temperature
●
To prevent product damage, print speed is reduced if the product reaches a specific internal
temperature (thermal slow down). The starting temperature of the product, the ambient
environment temperature, and the print job size affect the number of pages that can be printed
before the product reduces the print speed. Thermal slow-down reduces print speed by printing
four pages and then pausing for an amount of time before printing continues.
Other print speed reduction factors
●
Other factors (especially during large print jobs) that can cause reduced print speeds include:
ITB cleaning and lubrication; occurs every 50 to 80 pages and takes about 60 seconds.
◦
CPR control sequence; occurs every 450 pages and takes about 90 seconds.
◦
Density control sequence; occurs every 150 pages and takes about 120 seconds.
◦
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The product does not print or it prints slowly
The product does not print
If the product does not print at all, try the following solutions.
1. Make sure the product is turned on and that the control panel indicates it is ready.
If the control panel does not indicate the product is ready, turn the product off and then on
◦
again.
If the control panel indicates the product is ready, try sending the job again.
◦
2. If the control panel indicates the product has an error, resolve the error and then try sending the
job again.
3. Make sure the cables are all connected correctly. If the product is connected to a network, check
the following items:
Check the light next to the network connection on the product. If the network is active, the
◦
light is green.
Make sure that you are using a network cable and not a phone cord to connect to the
◦
network.
Make sure the network router, hub, or switch is turned on and that it is working correctly.
◦
4. Install the HP software from the CD that came with the product. Using generic printer drivers can
cause delays clearing jobs from the print queue.
5. From the list of printers on your computer, right-click the name of this product, click Properties,
and open the Ports tab.
If you are using a network cable to connect to the network, make sure the printer name listed
◦
on the Ports tab matches the product name on the product configuration page.
If you are using a USB cable and are connecting to a wireless network, make sure the box is
◦
checked next to Virtual printer port for USB.
6. If you are using a personal firewall system on the computer, it might be blocking communication
with the product. Try temporarily disabling the firewall to see if it is the source of the problem.
7. If your computer or the product is connected to a wireless network, low signal quality or
interference might be delaying print jobs.
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The product prints slowly
If the product prints, but it seems slow, try the following solutions.
1. Make sure the computer meets the minimum specifications for this product. For a list of
specifications, go to this Web site:
2. When you configure the product to print on some paper types, such as heavy paper, the product
prints more slowly so it can correctly fuse the toner to the paper. If the paper type setting is not
correct for the type of paper you are using, change the setting to the correct paper type.
3. If your computer or the product is connected to a wireless network, low signal quality or
interference might be delaying print jobs.
www.hp.com/support/ljcolorm251series.
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Solve product connectivity problems
Solve direct-connect problems
If you have connected the product directly to a computer, check the cable.
Verify that the cable is connected to the computer and to the product.
●
Verify that the cable is not longer than 5 m (16.4 ft). Try using a shorter cable.
●
Verify that the cable is working correctly by connecting it to another product. Replace the cable if
●
necessary.
Solve network problems
Check the following items to verify that the product is communicating with the network. Before
beginning, print a configuration page from the product control panel and locate the product IP address
that is listed on this page.
Poor physical connection
●
The computer is using the incorrect IP address for the product
●
The computer is unable to communicate with the product
●
The product is using incorrect link and duplex settings for the network
●
New software programs might be causing compatibility problems
●
The computer or workstation might be set up incorrectly
●
The product is disabled, or other network settings are incorrect
●
Poor physical connection
1. Verify that the product is attached to the correct network port using a cable of the correct length.
2. Verify that cable connections are secure.
3. Look at the network port connection on the back of the product, and verify that the amber activity
light and the green link-status light are lit.
4. If the problem continues, try a different cable or port on the hub.
The computer is using the incorrect IP address for the product
1. Open the printer properties and click the Ports tab. Verify that the current IP address for the
product is selected. The product IP address is listed on the product configuration page.
2. If you installed the product using the HP standard TCP/IP port, select the box labeled Always
print to this printer, even if its IP address changes.
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