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COLOR LASERJET PRO MFP
Troubleshooting Manual
OK
X
M176 M177
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HP Color LaserJet Pro MFP M176, M177
Troubleshooting Manual
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Copyright and License
Trademark Credits
© 2013 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: CZ165-90944
Edition 1, 9/2013
Microsoft®, Windows®, Windows® XP, and
Windows Vista® are U.S. registered trademarks
of Microsoft Corporation.
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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.
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iv Conventions used in this guide ENWW
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Table of contents
1 Theory of operation ....................................................................................................................................... 1
Basic operation ...................................................................................................................................................... 2
Major product systems ........................................................................................................................ 2
Sequence of operation ........................................................................................................................ 3
Formatter-control system ..................................................................................................................................... 4
Sleep mode .......................................................................................................................................... 4
Input/output ........................................................................................................................................ 4
CPU ....................................................................................................................................................... 4
Memory ................................................................................................................................................ 4
NAND Flash memory ........................................................................................................................... 4
Firmware .............................................................................................................................................. 5
Memory use ......................................................................................................................................... 5
PJL overview ........................................................................................................................................ 5
LEDM overview .................................................................................................................................... 5
Control panel ....................................................................................................................................... 5
Engine-control system .......................................................................................................................................... 6
DC controller ........................................................................................................................................ 7
Low-voltage power supply ................................................................................................................. 8
High-voltage power supply ................................................................................................................. 9
Fuser control ..................................................................................................................................... 10
Image-formation system .................................................................................................................................... 11
Image-formation process ................................................................................................................. 12
Latent-image formation stage ....................................................................................... 14
Step 1: Primary charging .............................................................................. 14
Step 2: Laser-beam exposure ...................................................................... 14
Developing stage ............................................................................................................ 15
Step 3: Development .................................................................................... 15
Transfer stage ................................................................................................................. 16
Step 4: Primary transfer ............................................................................... 16
Step 5: Secondary transfer .......................................................................... 16
Step 6: Separation from the drum ............................................................... 17
Fusing stage .................................................................................................................... 17
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Step 7: Fusing ............................................................................................... 17
Drum cleaning stage ....................................................................................................... 18
Step 8: Drum cleaning .................................................................................. 18
ITB cleaning mechanism ................................................................................................. 18
Pickup, feed, and delivery system ...................................................................................................................... 20
Photo sensors and switches ............................................................................................................. 21
Main-input tray .................................................................................................................................................... 22
Jam detection .................................................................................................................................... 22
Scanner system ................................................................................................................................................... 23
Electrical system ............................................................................................................................... 23
Scanner power-on sequence of events .......................................................................... 23
Copy or scan-to-computer sequence of events ............................................................. 24
Document feeder functions and operation ......................................................................................................... 25
Document feeder operation .............................................................................................................. 25
Document feeder paper path and document feeder sensors .......................................................... 25
Document feeder jam detection ....................................................................................................... 26
Fax functions and operation ............................................................................................................................... 27
Computer and network security features ........................................................................................ 27
PSTN operation ................................................................................................................................. 27
The fax subsystem ............................................................................................................................ 27
Fax card in the fax subsystem .......................................................................................................... 27
Safety isolation ............................................................................................................... 28
Safety-protection circuitry ............................................................................................. 28
Data path ......................................................................................................................... 28
Hook state ....................................................................................................................... 28
Downstream device detection ........................................................................................ 29
Hook switch control ........................................................................................................ 29
Ring detect ...................................................................................................................... 29
Line current control ........................................................................................................ 29
Billing- (metering-) tone filters ...................................................................................... 29
Fax page storage in flash memory ................................................................................................... 29
Stored fax pages ............................................................................................................. 30
Advantages of flash memory storage ............................................................................ 30
2 Solve problems ........................................................................................................................................... 31
Solve problems checklist ..................................................................................................................................... 32
Step 1: Test print functionality ......................................................................................................... 32
Step 2: Test copy functionality ......................................................................................................... 32
Menu map ............................................................................................................................................................ 33
Troubleshooting processes ................................................................................................................................. 34
Determine the problem source ......................................................................................................... 34
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Power subsystem .............................................................................................................................. 35
Power-on checks ............................................................................................................ 35
Tools for troubleshooting ................................................................................................................................... 36
Component diagnostics .................................................................................................................... 36
Engine-test page ............................................................................................................ 36
LCD control-panel tests .................................................................................................. 36
Touchscreen control-panel tests ................................................................................... 36
Diagrams ........................................................................................................................................... 38
Plug/jack locations ......................................................................................................... 38
Locations of connectors ................................................................................................. 39
Locations of major components ..................................................................................... 41
General timing chart ....................................................................................................... 43
General circuit diagram .................................................................................................. 44
Internal print-quality test pages ...................................................................................................... 45
Clean the paper path ....................................................................................................... 45
Print Configuration page ................................................................................................ 45
Print-quality troubleshooting tools ................................................................................................. 46
Repetitive image defects ruler ....................................................................................... 46
Calibrate the product ...................................................................................................... 47
Control panel menus ......................................................................................................................... 48
Touchscreen control panel ............................................................................................. 48
Setup menu .................................................................................................. 48
Fax Menu ....................................................................................................... 55
Copy Menu .................................................................................................... 57
LCD control panel ............................................................................................................ 59
Setup menu .................................................................................................. 59
Interpret control-panel messages .................................................................................................... 66
Control-panel message types ........................................................................................ 66
Control-panel messages ................................................................................................ 66
Clear jams ............................................................................................................................................................ 73
Solve paper feed or jam problems .................................................................................................... 73
The product does not pick up paper ............................................................................... 73
The product picks up multiple sheets of paper .............................................................. 73
Frequent or recurring paper jams .................................................................................. 73
Prevent paper jams ......................................................................................................... 74
Clear jams from the input tray .......................................................................................................... 75
Clear jams in the output bin .............................................................................................................. 79
Clear jams in the document feeder ................................................................................................... 81
Solve paper-handling problems .......................................................................................................................... 83
Solve image-quality problems ............................................................................................................................ 84
General print-quality issues ............................................................................................................. 84
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Color image defects .......................................................................................................................... 88
Copy print-quality problems ............................................................................................................. 93
Scan-quality problems ...................................................................................................................... 94
Prevent scan-quality problems ...................................................................................... 94
Solve scan-quality problems .......................................................................................... 94
Clean the product ................................................................................................................................................ 95
Print a cleaning page ......................................................................................................................... 95
Check the scanner glass for dirt and smudges ................................................................................. 95
Clean the pickup rollers and separation pad in the document feeder ............................................. 96
Solve performance problems .............................................................................................................................. 97
Solve connectivity problems ............................................................................................................................... 98
Solve direct-connect problems ......................................................................................................... 98
Solve wired network problems ......................................................................................................... 98
Poor physical connection ................................................................................................ 98
The computer is using the incorrect IP address for the product ................................... 98
The computer is unable to communicate with the product ........................................... 99
The product is using incorrect link and duplex settings for the network ...................... 99
New software programs might be causing compatibility problems ............................. 99
The computer or workstation might be set up incorrectly ............................................ 99
The product is disabled, or other network settings are incorrect ................................. 99
Solve wireless network problems .................................................................................................... 99
Wireless connectivity checklist .................................................................................... 100
The product does not print after the wireless configuration completes .................... 100
The product does not print, and the computer has a third-party firewall installed ... 101
The wireless connection does not work after moving the wireless router or
product .......................................................................................................................... 101
Cannot connect more computers to the wireless product .......................................... 101
The wireless product loses communication when connected to a VPN ...................... 101
The network does not appear in the wireless networks list ....................................... 101
The wireless network is not functioning ...................................................................... 101
Perform a wireless network diagnostic test ................................................................ 102
Reduce interference on a wireless network ................................................................ 102
Service mode functions ..................................................................................................................................... 103
Secondary service menu ................................................................................................................. 103
Open the secondary service menu ............................................................................... 103
Secondary service menu structure .............................................................................. 103
Product resets ................................................................................................................................. 105
Restore factory settings ............................................................................................... 105
NVRAM initialization ..................................................................................................... 105
Solve fax problems ............................................................................................................................................ 106
Check the hardware setup .............................................................................................................. 106
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Faxes are sending slowly ................................................................................................................ 107
Fax quality is poor ........................................................................................................................... 108
Fax cuts off or prints on two pages ................................................................................................ 109
Product updates ................................................................................................................................................ 110
Appendix A Service and support .................................................................................................................... 111
Hewlett-Packard limited warranty statement ................................................................................................. 112
HP's Premium Protection Warranty: LaserJet toner cartridge limited warranty statement ........................... 113
HP policy on non-HP supplies ........................................................................................................................... 114
HP anticounterfeit Web site .............................................................................................................................. 115
Data stored on the toner cartridge ................................................................................................................... 116
End User License Agreement ............................................................................................................................ 117
OpenSSL ............................................................................................................................................................. 119
Customer self-repair warranty service ............................................................................................................. 120
Customer support .............................................................................................................................................. 121
Appendix B Product specifications ................................................................................................................. 123
Physical specifications ...................................................................................................................................... 124
Power consumption, electrical specifications, and acoustic emissions .......................................................... 124
Environmental specifications ............................................................................................................................ 124
Appendix C Regulatory information ............................................................................................................... 125
FCC regulations .................................................................................................................................................. 126
Environmental product stewardship program ................................................................................................. 127
Protecting the environment ........................................................................................................... 127
Ozone production ............................................................................................................................ 127
Power consumption ........................................................................................................................ 127
Toner consumption ......................................................................................................................... 127
Paper use ......................................................................................................................................... 127
Plastics ............................................................................................................................................ 127
HP LaserJet print supplies .............................................................................................................. 127
Return and recycling instructions ................................................................................................... 128
United States and Puerto Rico ...................................................................................... 128
Multiple returns (more than one cartridge) ............................................... 128
Single returns ............................................................................................. 128
Shipping ...................................................................................................... 128
Non-U.S. returns ........................................................................................................... 129
Paper ............................................................................................................................................... 129
Material restrictions ........................................................................................................................ 129
Disposal of waste equipment by users ........................................................................................... 13 0
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Electronic hardware recycling ........................................................................................................ 130
Chemical substances ....................................................................................................................... 130
Material Safety Data Sheet (MSDS) ................................................................................................ 130
For more information ...................................................................................................................... 130
Declaration of conformity (M176n model) ....................................................................................................... 131
Declaration of conformity (M177fw model) ..................................................................................................... 133
Safety statements ............................................................................................................................................. 135
Laser safety ..................................................................................................................................... 135
Canadian DOC regulations .............................................................................................................. 135
VCCI statement (Japan) ................................................................................................................... 135
Power cord instructions .................................................................................................................. 135
Power cord statement (Japan) ....................................................................................................... 135
EMC statement (Korea) ................................................................................................................... 136
Laser statement for Finland ........................................................................................................... 136
GS statement (Germany) ................................................................................................................ 137
Substances Table (China) ................................................................................................................ 137
Restriction on Hazardous Substances statement (Turkey) ........................................................... 137
Restriction on Hazardous Substances statement (Ukraine) .......................................................... 137
Eurasian Conformity (Belarus, Kazakhstan, Russia) ...................................................................... 138
Additional statements for telecom (fax) products ........................................................................................... 139
EU Statement for Telecom Operation ............................................................................................ 139
New Zealand Telecom Statements ................................................................................................. 139
Additional FCC statement for telecom products (US) .................................................................... 139
Telephone Consumer Protection Act (US) ...................................................................................... 140
Industry Canada CS-03 requirements ............................................................................................ 140
Vietnam Telecom wired/wireless marking for ICTQC Type approved products ............................ 141
Additional statements for wireless products ................................................................................................... 142
FCC compliance statement—United States ................................................................................... 142
Australia statement ........................................................................................................................ 142
Brazil ANATEL statement ................................................................................................................ 142
Canadian statements ...................................................................................................................... 142
Products with 5 GHz Operation Industry of Canada ....................................................................... 142
Exposure to Radio Frequency Radiation (Canada) ......................................................................... 142
European Union regulatory notice .................................................................................................. 143
Notice for use in France .................................................................................................................. 143
Notice for use in Russia ................................................................................................................... 143
Mexico statement ........................................................................................................................... 143
Taiwan statement ........................................................................................................................... 144
Korean statement ........................................................................................................................... 144
Vietnam Telecom wired/wireless marking for ICTQC Type approved products ............................ 141
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Index ........................................................................................................................................................... 145
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List of tables
Table 1-1 Sequence of operation ......................................................................................................................................... 3
Table 1-2 Photo sensors and switches .............................................................................................................................. 21
Table 1-3 Document feeder sensors .................................................................................................................................. 25
Table 2-1 Determine the problem source .......................................................................................................................... 34
Table 2-2 Plug/jack locations ............................................................................................................................................. 38
Table 2-3 Engine control unit PCA connectors .................................................................................................................. 39
Table 2-4 Cross section view .............................................................................................................................................. 41
Table 2-5 External covers and doors (base) ...................................................................................................................... 42
Table 2-6 Repetitive image defects ruler .......................................................................................................................... 46
Table 2-7 HP Web Services menu (touchscreen control panel) ........................................................................................ 48
Table 2-8 Reports menu (touchscreen control panel) ....................................................................................................... 49
Table 2-9 Self Diagnostics menu (touchscreen control panel) ......................................................................................... 49
Table 2-10 Fax Setup menu (touchscreen control panel) ................................................................................................. 49
Table 2-11 System Setup menu (touchscreen control panel) ........................................................................................... 52
Table 2-12 Service menu (touchscreen control panel) ...................................................................................................... 54
Table 2-13 Network Setup menu (touchscreen control panel) ......................................................................................... 55
Table 2-14 Fax Menu (touchscreen control panel) ............................................................................................................ 55
Table 2-15 Copy Menu (touchscreen control panel) .......................................................................................................... 57
Table 2-16 HP Web Services menu (LCD control panel) .................................................................................................... 48
Table 2-17 Copy Setup menu (LCD control panel) ............................................................................................................. 57
Table 2-18 ID Copy menu (LCD control panel) ................................................................................................................... 60
Table 2-19 Reports menu (LCD control panel) .................................................................................................................. 60
Table 2-20 Self Diagnostics menu (LCD control panel) ..................................................................................................... 61
Table 2-21 System Setup menu (LCD control panel) ......................................................................................................... 52
Table 2-22 Service menu (LCD control panel) .................................................................................................................... 54
Table 2-23 Network Setup menu (LCD control panel) ....................................................................................................... 55
Table 2-24 Control-panel messages .................................................................................................................................. 66
Table 2-25 Solve paper-handling problems ...................................................................................................................... 83
Table 2-26 General print-quality issues ............................................................................................................................ 84
Table 2-27 Color image defects ......................................................................................................................................... 88
Table 2-28 Copy print-quality problems ............................................................................................................................ 93
Table 2-29 Scan-quality problems ..................................................................................................................................... 94
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Table 2-30 Solve performance problems .......................................................................................................................... 97
Table 2-31 Secondary service menu ................................................................................................................................ 103
Table B-1 Physical specifications ..................................................................................................................................... 124
Table B-2 Product dimensions with document feeder opened ....................................................................................... 124
Table B-3 Operating-environment specifications ........................................................................................................... 124
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List of figures
Figure 1-1 Product systems ................................................................................................................................................. 2
Figure 1-2 Engine control system components ................................................................................................................... 6
Figure 1-3 DC controller circuit diagram .............................................................................................................................. 7
Figure 1-4 Low-voltage power supply ................................................................................................................................. 8
Figure 1-5 High-voltage power supply ................................................................................................................................ 9
Figure 1-6 Image-formation system .................................................................................................................................. 12
Figure 1-7 Image-formation process ................................................................................................................................. 13
Figure 1-8 Primary charging ............................................................................................................................................... 14
Figure 1-9 Laser-beam exposure ....................................................................................................................................... 14
Figure 1-10 Development .................................................................................................................................................. 15
Figure 1-11 Primary transfer ............................................................................................................................................. 16
Figure 1-12 Secondary transfer ......................................................................................................................................... 16
Figure 1-13 Separation from the drum .............................................................................................................................. 17
Figure 1-14 Fusing .............................................................................................................................................................. 17
Figure 1-15 Drum cleaning ................................................................................................................................................. 18
Figure 1-16 ITB cleaning mechanism ................................................................................................................................. 18
Figure 1-17 Pickup, feed, and delivery system block diagram ......................................................................................... 20
Figure 1-18 Photo sensors and switches ........................................................................................................................... 21
Figure 1-19 Document feeder paper path and document feeder sensors ........................................................................ 25
Figure 2-1 Plug/jack locations ........................................................................................................................................... 38
Figure 2-2 Locations of connectors ................................................................................................................................... 39
Figure 2-3 Cross section view ............................................................................................................................................. 41
Figure 2-4 External covers and doors (base) ..................................................................................................................... 42
Figure 2-5 General timing diagram .................................................................................................................................... 43
Figure 2-6 General circuit diagram ..................................................................................................................................... 44
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1 Theory of operation
This chapter presents an overview of the major components of the product, and it includes a detailed
discussion of the image-formation system.
●
Basic operation
●
Formatter-control system
●
Engine-control system
●
Image-formation system
●
Pickup, feed, and delivery system
●
Main-input tray
●
Scanner system
●
Document feeder functions and operation
●
Fax functions and operation
ENWW 1
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Basic operation
Major product systems
The product includes the following systems:
●
Document feeder
●
Document scanner
●
Engine control system
●
Laser/scanner system
●
Image-formation system
●
Pickup-and-feed system
Figure 1-1 Product systems
Formatter
Document feeder
Document scanner
2 Chapter 1 Theory of operation ENWW
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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 drum-phase
adjustment is complete
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
paper 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 motor stops
rotating
Clears the potential from the
drum surface, adjusts the drum
phase, and cleans the
intermediate transfer belt (ITB)
Maintains the product 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 paper
Moves the printed sheet out of
the product
Detects the toner level,
cartridge presence, and
environment; completes any
required calibration (color
registration control and image
stability)
The product enters STBY mode
when the formatter sends a
sleep command; the product
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 product enters the INTR
period as soon as the formatter
sends another print command
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Formatter-control system
The formatter is responsible for the following procedures:
●
Controlling Sleep mode
●
Receiving and processing print data from the various product interfaces
●
Monitoring control-panel functions and relaying product-status information (through the control panel
and the network or bidirectional interface)
●
Developing and coordinating data placement and timing with the DC controller PCA
●
Storing font information
●
Communicating with the host computer through the network or the bidirectional interface
The formatter receives a print job from the network or bidirectional interface and separates it into image
information and instructions that control the printing process. The DC controller PCA synchronizes the imageformation system with the paper-input and -output systems, and then signals the formatter to send the
print-image data.
Sleep mode
After a user-specified time, the Sleep mode feature automatically conserves electricity by substantially
reducing power consumption when the product is not printing. After a user-specified time, the product
automatically reduces its power consumption (Sleep mode). The product returns to the ready state when a
button is pressed, a print job is received, or a door is opened. When the product is in Sleep mode, all of the
control-panel LEDs and the power button backlight LED are off.
Input/output
The product receives print data primarily from the following:
●
Hi-Speed USB 2.0 port
●
10/100/1000 Ethernet LAN connection
●
802.11b/g/n wireless networking
CPU
The formatter incorporates a 600 MHz Arm processor.
Memory
The random access memory (RAM) on the formatter PCA contains the page, I/O buffers, and the font storage
area. RAM stores printing and font information received from the host system, and can also serve to
temporarily store a full page of print-image data before the data is sent to the print engine.
NAND Flash memory
The Smart Install CD image (ISO) is stored in the NAND Flash non-volatile memory. This memory can be
reprogrammed through the firmware.
4 Chapter 1 Theory of operation ENWW
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Firmware
The product has 128 MB of DDR-2 SDRAM, which is used for run-time firmware imaging and print, scan and
copy job information during printing.
Memory use
The product has a 16 KB EEPROM and 16 MB of SPI NOR Flash Memory, which is used for product
configuration information and print driver firmware.
PJL overview
The print job language (PJL) is an integral part of configuration, in addition to the standard print command
language (PCL). With standard cabling, the product can use PJL to perform a variety of functions such as
these:
●
Two-way communication with the host computer through a network connection or a USB connection.
The product can inform the host about such things as the control-panel settings, and the control-panel
settings can be changed from the host.
●
Dynamic I/O switching. The product uses this switching to be configured with a host on each I/O. The
product can receive data from more than one I/O simultaneously, until the I/O buffer is full. This can
occur even when the product is offline.
●
Context-sensitive switching. The product can automatically recognize the personality (PS or PCL) of
each job and configure itself to serve that personality.
●
Isolation of print environment settings from one print job to the next. For example, if a print job is sent
to the product in landscape mode, the subsequent print jobs print in landscape mode only if they are
formatted for landscape printing.
LEDM overview
The low-end data model (LEDM) provides one consistent data representation method and defines the
dynamic and capabilities tickets shared between clients and devices, as well as the access protocol, event,
security, and discovery methods.
Control panel
The formatter sends and receives product status and command data to and from the control-panel PCA.
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Engine-control system
The engine control system coordinates all product functions and drives the other three systems.
The engine control system contains the DC controller, low-voltage power supply PCA, high-voltage power
supply PCA, and fuser control PCA.
Figure 1-2 Engine control system components
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DC controller
The DC controller controls the operational sequences of the product.
Figure 1-3 DC controller circuit diagram
Connector PCA
Engine controller
Fuser
ITB ass’y
T2 roller
Cartridge
Control panel
Low-voltage
power supply
High-voltage
power supply
Formatter
Motor
Solenoid
Photointerruptor
DC controller
Sensor
Switch
Laser scanner ass’y
LED
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Low-voltage power supply
The low-voltage power supply converts AC power from the wall receptacle into DC voltage power.
Figure 1-4 Low-voltage power supply
AC power
Fuse
FU102
Rectifying
Relay
RL401
Relay control
circuit
Fuse
FU101
circuit
Power switch
SW7001
Low-voltage power supply
Fuser control
circuit
Frequency
detection circuit
200V model only
PWSW
Connector
PCA
Fuser
FREQSNS
RLD+
RLD-
+24V
DC controller
Remote switch
control circuit
+24V
Switching
circuit
+24B
+24V
generation
circuit
Protection circuit
+3.3V
generation
circuit
Switch
+24R
PWSV
+3.3R
LVT100V
/REM3V_V
+3.3V
Interlock switch
SW501
+3.3T
Switching
circuit
+24V
Formatter
8 Chapter 1 Theory of operation ENWW
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High-voltage power supply
Figure 1-5 High-voltage power supply
brush
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Fuser control
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Image-formation system
The DC controller controls the image-formation system according to commands from the formatter.
The DC controller controls the internal components of the image scanner system to form the toner image on
the photosensitive drum surface. The toner image is transferred to the paper and fused.
The following are the main components of the image-formation system.
●
Imaging drum
●
Laser scanner assembly
●
Carousel
●
Four toner cartridges
●
ITB
●
ITB drive roller
●
T1 pad
●
ITB cleaning brush
●
ITB cleaning roller
●
T2 roller
●
Fuser film assembly
●
Pressure roller
●
High-voltage power supply
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The following image shows the components of the image-formation system.
Figure 1-6 Image-formation system
Image-formation process
The DC controller rotates the following motors to drive each component.
Main motor
●
ITB drive roller
●
ITB (follows the ITB drive roller)
●
T2 roller (follows the ITB)
●
Imaging drum
●
Primary charging roller (part of the imaging drum)
●
Developing roller (part of the toner cartridge)
brush
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Carousel motor
●
●
Fuser motor
●
●
●
Figure 1-7 Image-formation process
Carousel
Engagement/Disengagement of the developing-cartridge (follows the carousel)
Pressure roller
Fuser film (follows the pressure roller)
Engagement/Disengagement of the T2 roller, ITB cleaning roller and ITB cleaning brush
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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. This image is not visible on the drum.
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 1-8 Primary charging
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.
Figure 1-9 Laser-beam exposure
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Developing stage
The developing cylinder comes in contact with the photosensitive drum and deposits toner on the
electrostatic latent image.
Step 3: Development
The toner acquires a negative charge as a result of the friction from the developing cylinder rotating against
the developing 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 1-10 Development
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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 1-11 Primary transfer
brush
Step 5: Secondary transfer
The toner image on the ITB is transferred to the paper. The DC positive bias is applied to the secondary
transfer roller. As the paper passes between the secondary transfer roller and the ITB, the toner image is
transferred to the paper.
Figure 1-12 Secondary transfer
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Step 6: Separation from the drum
The elasticity of the paper and the curvature of the ITB drive roller cause the paper to separate from the ITB.
Figure 1-13 Separation from the drum
Fusing stage
Until the fusing stage is complete, the image is not permanently affixed to the paper. The toner can be easily
smudged until the heat and pressure of the fusing process fix the image to the sheet.
Step 7: Fusing
The product uses an on-demand fusing method to fix the toner image onto the paper. The toner image is
permanently affixed to the paper by the heat and pressure.
Figure 1-14 Fusing
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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 8: 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 1-15 Drum cleaning
ITB cleaning mechanism
The ITB cleaning mechanism cleans the ITB surface.
Negative or positive bias is applied to the T1 pad, ITB cleaning brush, T2 roller and ITB cleaning roller to
reverse transfer the residual toner on the ITB to the photosensitive drum. The reverse transferred residual
toner is deposited in the toner collection box in the imaging drum.
Figure 1-16 ITB cleaning mechanism
The residual toner on the T2 roller, ITB cleaning brush and ITB cleaning roller is also deposited in the toner
collection box during the ITB cleaning operation.
The DC controller executes the ITB cleaning during the following periods:
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●
Wait period after a jam occurrence
●
Wait period after the home position detection of T2 roller or ITB cleaner
●
Last rotation period after a misprint occurrence
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Pickup, feed, and delivery system
The paper feed system picks up, feeds, and delivers the page.
Figure 1-17 Pickup, feed, and delivery system block diagram
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Photo sensors and switches
NOTE: The illustration in this section also shows the product photo sensors and switches. The power switch
is not shown.
Figure 1-18 Photo sensors and switches
Table 1-2 Photo sensors and switches
Item Description
SR1 Media-width sensor
SR2 Delivery sensor
SR3 Loop sensor
SR4 Fuser pressure release sensor
SR6 Top-of-Page (TOP) sensor
SW1 Rear door open detection switch
SW501 Interlock switch
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Main-input tray
Jam detection
The product uses the following sensors to detect the presence of paper and to check for jams. The page must
pass each sensor within a specified time.
NOTE: To find the following components, see Photo sensors and switches on page 21.
●
PS701; fuser delivery sensor
●
PS751; TOP sensor
NOTE: The product automatically ejects paper if the TOP sensor detects residual paper within the product
when the power is turned on or the door is closed.
The product detects the following jams:
●
Pickup stationary jam
●
Delivery delay jam
●
Delivery stationary jam
●
Fuser wrapping jam
●
Door open jam
●
Residual media jam
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Scanner system
The flatbed image scanner captures an electronic image of the document on the glass. The scanner does this
by illuminating the document with LEDs (red, green, and blue) and capturing the image in the image sensor to
create an electronic format of the document. The flatbed scanner consists of three main elements
●
CIS scanner. The CIS (contact image sensor) scanner captures an image using the product's optical path.
Red, green, and blue LEDs sequentially illuminate a small strip of the document (often called a raster
line), and the optical system captures each color in a single row of CCD sensors that cover the entire
page width. Because only one color is captured for each line per exposure, the three colors are
recombined electronically to create the full color image. For monochromatic scans or copies, all three
LEDs are illuminated to create a white light for the scan so the raster line can be captured in one
exposure.
●
Mechanical carriage drive. The carriage drive moves the CIS scan head along the document length to
create the image. In this product, a small DC motor with an optical encoder creates this motion. The
speed of the carriage drive is proportional to the scan resolution (300 ppi is much faster than 1200 ppi)
and also proportional to the type of scan (color scans are three-times slower than monochromatic
scans). A 1200 ppi color scan moves so slowly that the product may appear to not be working, whereas
a monochromatic copy scan moves at 50 times that speed and will be a little noisy.
●
Image processing system (formatter). The formatter processes the scanner data into either a copy or a
scan to the computer. For copies, the image data is sent directly to the product without being
transmitted to the computer. Depending on user selections for the copy settings, the formatter
enhances the scanner data significantly before sending it to the product. Image data is captured at 300
ppi for copies and is user selectable for scans to the computer. Each pixel is represented by 8 bits for
each of the three colors (256 levels for each color), for a total of 24 bits per pixel (24-bit color).
Electrical system
Scanner power-on sequence of events
When the product is turned on, it performs the following tests:
●
Wall find. The scan carriage moves slowly to the left while watching an encoder on the carriage motor
to determine when the carriage has found the left side wall or stop. This enables the product to identify
the document origin (position of the original). If the document origin cannot be located, a default
position is used instead.
●
Home find. The scan carriage uses the optical scanner to find physical reference features that relate to
the document origin at the left side of the image glass. This process ensures accurate location of the
first document pixels so that the user documents will have an accurate placement of the image on
scans and copies. If the reference feature is not found, it uses a default value.
●
Calibration. This test, also known as scanner color calibration, enables the product to identify the black
and white on every pixel in the CIS. Calibration occurs in two major processes: a broad (analog)
adjustment of all pixels to bring them into the target output range, and a pixel-by-pixel adjustment
(digital) to fine tune the actual black and white response. The calibration process occurs under the left
side of flatbed image scanner where there is a special white calibration label.
Calibration is the most important step in creating a high quality image. Calibration problems can include
color inaccuracies, brightness inaccuracies, and vertical streaks through the image. The calibration
process identifies any bad pixels and enables the image formatter to recreate the lost information from
adjacent pixels. Extreme cases of this problem can appear as large vertical streaks or image smears.
Turn the product on or perform a color calibration to force a scanner calibration. Scanner calibration
occurs with each of these events.
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Copy or scan-to-computer sequence of events
To create an accurate rendition of a document, the scanner must be calibrated for the requested operation. If
the user selects a scan at 600 ppi color, the flatbed image scanner calibrates for that specific operational
mode. Subsequently, the flatbed image scanner automatically re-calibrates for the next requested
operation. Calibration does not occur for every new copy request.
Normal sequence of operation for a flatbed copy or scan includes:
1. LEDs illuminate.
2. Carriage motion begins moving the CIS scanner toward the right.
3. Image capture continues for the entire page or length requested in a scan-to-computer operation.
4. Carriage returns to the home position on the left.
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Document feeder functions and operation
The following sections describe how the document feeder functions.
Document feeder operation
Standby (paper-loading) mode: In standby mode, the stopper will be lowered to prevent the user from
inserting the original document too far. When a document is inserted correctly, the CIS will detect its
presence by the Flag_document status.
The standard operation of the document feeder consists of the pick and feed steps.
Pick: When it receives a copy or scan command, the SSA motor engages the gear train to release the stopper.
The first roller, called the pre-pick roller, moves the top few sheets forward into the document feeder. The
next roller is the pickup roller. This roller contacts the document feeder separation pad, which separates
multiple pages into single sheets.
Feed: The single sheet continues through the path. Along the way, the TOF sensor, which is a set distance
from the document feeder glass, detects the sheet. This alerts the scanner to start when the page reaches
the glass. The scanner acquires the image, one raster line at a time, until it detects the end of the page. The
page is then ejected. The pick and feed steps are repeated as long as no paper is detected by the TOF sensor.
The document feeder will not function when the document feeder cover is open. The paper path is
incomplete if the document feeder cover is lifted from the glass.
Document feeder paper path and document feeder sensors
Figure 1-19 Document feeder paper path and document feeder sensors
1 2
Table 1-3 Document feeder sensors
Item Description
1 TOF/BOF sensor
2 Flag_document part
The CIS will detect the presence of the paper from the flag_document (callout 2) status. The document
feeder has one sensor that detects paper. If paper is in the document feeder, the TOF sensor (callout 1)
detects the top and bottom edges of the document. The TOF sensor detects media moving through the
document feeder. If a jam is detected, the document feeder immediately stops the paper from feeding and a
jam message is displayed on the control-panel display.
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Document feeder jam detection
The document feeder has one sensor that detects paper. The TOF sensor detects media moving through the
document feeder. If a jam is detected, the document feeder immediately stops the paper feeding and a jam
message appears on the control-panel display.
A jam can be detected under any of the following conditions:
●
Document-feeder jam. When documents are detected in the document feeder input tray, and a
command to copy, scan or fax is received, the scan module travels to the left side of the scan assembly
and stops beneath the document feeder scanner glass. The document feeder then attempts three
times, or for about ten seconds, to advance the paper to the TOF sensor. If the paper does not advance,
the scan module travels back to the home position on the right side of the scanner assembly. The
message Document feeder mispick. Reload. appears on the control-panel display.
●
Long-document jam. If the paper has advanced to trigger the TOF sensor, but the trailing edge is not
detected within the time allowed for a 381 mm (15 in) document (the maximum allowable page length
for the document feeder), the scanner returns to the home position on the right side of the scanner
assembly. The message Doc feeder jam. Clear, Reload. appears on the control-panel display.
●
Stall jam. When a page that is less than 381 mm (15 in) long has advanced to the TOF sensor but has
not left it within the expected time, the paper has probably stalled or jammed. The scanner returns to
the home position on the right side of the scanner assembly. The message Doc feeder jam. Clear,
Reload. appears on the control-panel display.
●
Other. If the paper stops in the document feeder and the scan module remains under the document
feeder scanner glass, an internal firmware error has probably occurred. This is usually remedied by
cycling the power.
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Fax functions and operation
The following sections describe the product fax capabilities.
Computer and network security features
The product can send and receive fax data over telephone lines that conform to public switch telephone
network (PSTN) standards. The secure fax protocols make it impossible for computer viruses to be
transferred from the telephone line to a computer or network.
The following product features prevent virus transmission:
●
No direct connection exists between the fax line and any devices that are connected to the USB or
Ethernet ports.
●
The internal firmware cannot be modified through the fax connection.
●
All fax communications go through the fax subsystem, which does not use Internet data-exchange
protocols.
PSTN operation
The PSTN operates through a central office (CO) that generates a constant voltage on the TIP and RING wires
(48 V, usually). A device goes on-hook by connecting impedance (such as 600 ohms for the U.S.) across the
TIP and RING so that a line current can flow. The CO can detect this current and can send impulses like dial
tones. The product generates more signaling tones, such as dialing digits, to tell the CO how to connect the
call. The product can also detect tones, such as a busy tone from the CO, that tell it how to behave.
When the call is connected, the CO behaves like a piece of wire connecting the sender and receiver. This is the
period during which all of the fax signaling and data transfer occurs. When a call is completed, the circuit
opens again and the line-current flow ceases, removing the CO connection from both the sender and the
receiver.
On most phone systems, the TIP and RING wires appear on pins 3 and 4 of the RJ-11 modular jack (the one on
the fax card). These two wires do not have to be polarized because all the equipment works with either TIP or
RING on pin 3 and the other wire on pin 4. This means that cables of either polarity can interconnect and will
still work.
These basic functions of PSTN operation are assumed in the design of the fax subsystem. The product
generates and detects the signaling tones, currents, and data signals that are required to transmit and
receive faxes on the PSTN.
The fax subsystem
The formatter, fax card, firmware, and software all contribute to the fax functionality. The designs of the
formatter and fax card, along with parameters in the firmware, determine the majority of the regulatory
requirements for telephony on the product.
The fax subsystem is designed to support V.34 fax transmission, lower speeds (such as V.17 fax), and older
fax machines.
Fax card in the fax subsystem
Three versions of the fax card are used in the product. One for Asia Pacific Countries/Regions and the United
States, one for Europe, and one for Brazil. Each version is compliant with the 2/4-wire phone jack system
from the respective country/region.
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The fax card contains the modem chipset (DSP and CODEC) that controls the basic fax functions of tone
generation and detection, along with channel control for fax transmissions. The CODEC and its associated
circuitry act as the third-generation silicon data access arrangement (DAA) to comply with worldwide
regulatory requirements.
Safety isolation
The most important function of the fax card is the safety isolation between the high-voltage, transient-prone
environment of the telephone network (TNV [telephone network voltage]) and the low-voltage analog and
digital circuitry of the formatter (SELV [secondary extra-low voltage]). This safety isolation provides both
customer safety and product reliability in the telecom environment.
Any signals that cross the isolation barrier do so magnetically. The breakdown voltage rating of barriercritical components is greater than 5 kV.
Safety-protection circuitry
In addition to the safety barrier, the fax card protects against over-voltage and over-current events.
Telephone over-voltage events can be either differential mode or common mode. The event can be transient
in nature (a lightning-induced surge or ESD) or continuous (a power line crossed with a phone line). The fax
card protection circuitry provides margin against combinations of over-voltage and over-current events.
Common mode protection is provided by the selection of high-voltage-barrier critical components
(transformer and relay). The safety barrier of the fax card PCB traces and the clearance between the fax card
and surrounding components also contribute to common mode protection.
A voltage suppressor (a crowbar-type SIDACTOR) provides differential protection. This product becomes low
impedance at approximately 300 V differential, and crowbars to a low voltage. A series thermal switch works
in conjunction with the crowbar for continuous telephone line events, such as crossed power lines.
All communications cross the isolation barrier magnetically. The breakdown voltage rating of barrier-critical
components is greater than 5 kV.
Data path
TIP and RING are the two-wire paths for all signals from the telephone network. All signaling and data
information comes across them, including fax tones and fax data.
The telephone network uses DC current to determine the hook state of the telephone, so line current must be
present during a call. The silicon DAA provides a DC holding circuit to keep the line current constant during a
fax call.
The silicon DAA converts the analog signal to a digital signal for DSP processing, and also converts the digital
signal to an analog signal for transmitting data through a telephone line.
The magnetically coupled signals that cross the isolation barrier go either through a transformer or a relay.
The DSP in the fax card communicates with the ASIC in the formatter using the high-speed serial interface.
Hook state
Another magnetically coupled signal is the control signal that disconnects the downstream telephone
devices (such as a phone or answering machine). A control signal originating on the DSP can change the relay
state, causing the auxiliary jack (downstream jack) to be disconnected from the telephone circuit.
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The product takes control of calls that it recognizes as fax calls. If the product does not directly pick up the
call, it monitors incoming calls for the fax tone or for the user to direct it to receive a fax. This idle mode is
also called eavesdropping. This mode is active when the product is on-hook but current exists in the
downstream phone line because another device is off-hook. During eavesdropping, the receive circuit is
enabled but has a different gain from the current that is generated during normal fax transmissions.
The product does not take control of the line unless it detects a fax tone or the user causes it to connect
manually. This feature allows the user to make voice calls from a phone that is connected to the product
without being cut off if a fax is not being received.
Downstream device detection
The line voltage monitoring module of the silicon DAA can detect the line state as well as the downstream
device. It tells DSP via DIB that an active device (telephone, modem, or answering machine) is connected to
the auxiliary port on the product (the right side of the RJ-11 jack). The DSP uses the signal to ensure that the
product does not go off-hook (and disconnect a downstream call) until it has been authorized to do so (by a
manual fax start or the detection of the appropriate tones).
Hook switch control
In the silicon DAA the CODEC controls the hook switch directly. The CODEC is activated when it receives
commands from the DSP. When the circuit is drawing DC current from the central office it is considered offhook. When no DC current flows the state is considered on-hook.
Ring detect
Ring detect is performed by the line voltage monitoring module of the silicon DAA, and is a combination of
voltage levels and cadence (time on and time off). Both must be present to detect a valid ring. The CODEC
works with DSP as well as the firmware to determine if an incoming signal is an answerable ring.
Line current control
The DC current from the CO needs to have a path to flow from TIP to RING. The DC impedance emulation line
modulator and DC terminations modules in the silicon DAA act as a DC holding circuit, and works with the
firmware to achieve the voltage-current characteristic between TIP and RING. The impedance (the currentvoltage characteristic) changes corresponding to certain special events, such as pulse dialing or when the
product goes on-hook.
Billing- (metering-) tone filters
Switzerland and Germany provide high-frequency AC signals on the phone line in order to bill customers.
A filter in a special fax cable (for certain countries/regions), can filter these signals. Because these billing
signals are not used in the U.S., these filters are not present in the U.S. fax cable.
To obtain a special fax cable, contact the local telephone service provider.
Fax page storage in flash memory
Fax pages are the electronic images of the document page. They can be created in any of three ways:
scanned to be sent to another fax machine, generated to be sent by the computer, or received from a fax
machine to be printed.
The product stores all fax pages in flash memory automatically. After these pages are written into flash
memory, they are stored until the pages are sent to another fax machine, printed on the product, transmitted
to the computer, or erased by the user.
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These pages are stored in flash memory, which is the nonvolatile memory that can be repeatedly read from,
written to, and erased. The product has 8 MB of flash memory, of which 7.5 MB is available for fax storage.
The remaining 0.5 MB is used for the file system and reclamation. Adding RAM does not affect the fax page
storage because the product does not use RAM for storing fax pages.
Stored fax pages
The user can reprint stored fax receive pages in case of errors. For a fax send, the product will resend the fax
in case of errors. The product will resend stored fax pages after a busy signal, communication error, no
answer, or power failure. Other fax devices store fax pages in either normal RAM or short-term RAM. Normal
RAM immediately loses its data when power is lost, while short-term RAM loses its data about 60 minutes
after power failure. Flash memory maintains its data for years without any applied power.
Advantages of flash memory storage
Fax pages that are stored in flash memory are persistent. They are not lost as a result of a power failure, no
matter how long the power is off. Users can reprint faxes in case the toner cartridge runs out of toner or the
product experiences other errors while printing faxes.
The product also has scan-ahead functionality that makes use of flash memory. Scan-ahead automatically
scans pages into flash memory before a fax job is sent. This allows the sender to pick up the original
document immediately after it is scanned, eliminating the need to wait until the fax is transmission is
complete.
Because fax pages are stored in flash memory rather than RAM, more RAM is available to handle larger and
more complicated copy and print jobs.
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2 Solve problems
●
Solve problems checklist
●
Menu map
●
Troubleshooting processes
●
Tools for troubleshooting
●
Clear jams
●
Solve paper-handling problems
●
Solve image-quality problems
●
Clean the product
●
Solve performance problems
●
Solve connectivity problems
●
Service mode functions
●
Solve fax problems
●
Product updates
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Solve problems checklist
Follow these steps when trying to solve a problem with the product.
●
Step 1: Test print functionality
●
Step 2: Test copy functionality
Step 1: Test print functionality
1. Print a configuration report from the product control panel.
LCD control panel
a. On the product control panel, press the Setup
b. Open the following menus:
●
Setup
●
Reports
c. Select the Config Report item, and then press the OK button to print the page.
Touchscreen control panel
a.
From the Home screen on the product control panel, touch the Setup
b. Touch the Reports menu.
c. Touch the Config Report button.
d. Touch the OK button to print the report.
2. If the report does not print, check the following:
●
Make sure that paper is in the tray.
●
Check the control panel for paper jam messages. If the control panel indicates a jam, clear the jam.
●
Make sure that the print cartridge is not empty.
button.
button.
●
Clean the paper pick roller and the separation pad.
●
Replace the paper pick roller or the separation pad.
Step 2: Test copy functionality
1. M177 model only: Place the configuration page into the document feeder, adjust the paper guides, and
then make a copy. If paper does not feed through the document feeder smoothly, replace the document
feeder pick up arm assembly. If this does not improve the issue, replace the document feeder core
assembly.
2. Place the configuration page onto the scanner glass, and then make a copy.
3. If the print quality on the copied pages is not acceptable, clean the scanner glass.
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Menu map
Use the following procedures to print a control-panel menu layout map.
LCD control panel
1. On the product control panel, press the Home button.
2. Open the following menus:
●
Setup
●
Reports
3. Select the Menu Structure item, and then press the OK button to print the page.
Touchscreen control panel
1.
From the Home screen on the product control panel, touch the Setup
2. Touch the Reports menu.
3. Touch the Menu Structure button.
4. Touch the OK button to print the report.
button.
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Troubleshooting processes
Determine the problem source
The following table includes basic questions to ask the customer to quickly help define the problem or
problems.
Table 2-1 Determine the problem source
General topic Questions
Environment
Paper
Input tray
Supplies
●
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 coping processes.
Ammonia gas (from cleaning supplies or a diazo copier) can have an adverse affect
on some product components (for example, the imaging drum).
●
Is the product exposed to direct sunlight?
●
Does the customer use only supported paper?
●
Is the paper in good condition (no curls, folds, or distortion)?
●
Is the paper stored correctly and within environmental limits?
●
Is the amount of paper in the tray within specifications?
●
Is the paper correctly placed in the tray?
●
Are the paper guides aligned with the stack?
●
Are the toner cartridges and the imaging-drum installed correctly and firmly
seated?
●
Has the sealing tape been removed from each toner cartridge?
●
Are the toner cartridges and imaging drum within their estimated life? (Check the
supplies status page.)
Transfer roller
Covers
Condensation
Miscellaneous
●
Is the transfer roller installed correctly?
●
Are the top, front, and rear doors firmly 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
90 to 120 minutes.
●
Was a 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 (for example, a toner cartridge or
imaging drum) from the product.
●
Remove the product from the network and make sure that the failure is with the
product before beginning troubleshooting.
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Power subsystem
Power-on checks
Turn on the power. If the control-panel LEDs do not illuminate, perform the power-on checks to find the
cause of the problem.
1. Verify that the product is plugged into an active electrical outlet that delivers the correct voltage.
2. Verify that the power button is in the on position.
3. Make sure that the product makes the expected start up sounds.
NOTE: The over-current/over-voltage protection circuit in the low-voltage power supply unit might be
functioning. Turn the product off, unplug the power cord, and turn the product on. If the product does
not function, the fuse melts, or the power supply is malfunctioning, replace the engine controller unit.
See the Repair Manual.
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Tools for troubleshooting
Component diagnostics
Engine-test page
The product has an engine-test page in the firmware that is printed by opening and closing the scanner
assembly, top door, front door, and rear door in a specific pattern. Use A4 or letter-size paper to print the
engine-test page.
1. Make sure that paper is correctly loaded in the tray.
2. Turn off the product.
3. Lift the scanner assembly, and then open the top cover, the front door, and the rear door.
4. Turn the product on. Within 10 seconds of turning the product on, close the front door, rear door, top
cover, and scanner assembly to start the internal engine-test.
If the engine test is successful, an engine-test page prints. The engine-test page has a test pattern of
horizontal lines.
LCD control-panel tests
The product includes diagnostic tests for the LCD control panel.
Test the LCD control-panel display
Use this test to verify that all of the LEDs and characters on the LCD display function correctly.
1. Press the Setup
2. Press the left arrow
displayed.
3. Open the Display test menu.
When this test is selected, the LEDs will first be turned on one at a time. Press OK to continue with the
next LED. After each LED has been tested, the character display test will begin by testing the pixels on
each line. The last portion of the test begins by displaying each of the 255 characters 16 characters at a
time.
4. Press OK to see the next 16 characters, or press the Cancel
Test the LCD control-panel buttons
Use this test to verify that all of the buttons on the LCD control panel function correctly.
1. Press the Setup
2. Press the left arrow
displayed.
button.
button and the OK button at the same time. The 2ndary service menu is
button to discontinue the test.
button.
button and the OK button at the same time. The 2ndary service menu is
3. Open the Button test menu.
4. Press the indicated button to continue to the next step in the test.
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Touchscreen control-panel tests
The product includes diagnostic tests for the touchscreen control panel.
Test the touchscreen control-panel LEDs
Use this test to verify that all of the LEDs on the touchscreen control panel function correctly.
1.
Press the Setup
2. Press the left arrow
displayed.
3. Open the LED test menu.
4. Press OK to continue to the next LED.
Test the touchscreen control-panel display
Use this test to verify the touchscreen control-panel display. The screen will show each of the following
colors in sequence: white, black, red, green, and blue.
1.
Press the Setup
2. Press the left arrow
displayed.
3. Open the Display test menu.
4. Press OK to continue to the next color.
Test the touchscreen control-panel buttons
Use this test to verify that all of the buttons on the touchscreen control panel function correctly.
button.
button and the Cancel button at the same time. The 2ndary service menu is
button.
button and the Cancel button at the same time. The 2ndary service menu is
1.
Press the Setup
2. Press the left arrow
displayed.
3. Open the Button test menu.
4. Press the indicated button to continue to the next step in the test.
button.
button and the Cancel button at the same time. The 2ndary service menu is
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Diagrams
Plug/jack locations
Figure 2-1 Plug/jack locations
1
4
2
3
5
6
Table 2-2 Plug/jack locations
1 Hi-Speed USB 2.0
2 Ethernet port
3 Power connection
4 Slot for cable-type security lock
5 Fax "line in" port for attaching the fax phone line to the product
6 Telephone "line out" port for attaching an extension phone, answering machine, or other devices
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Locations of connectors
Figure 2-2 Locations of connectors
J128
J103
J130
J106
J107
J119
J108
J109
J152
J104
J110
J112
J102
J101
Table 2-3 Engine control unit PCA connectors
Item Description Item Description Item Description
J101 Not used J107 Media width sensor (SR1)
Delivery sensor (SR2)
J102 Not used J108 Low-voltage power supply
TOP sensor (SR6)
J103 Formatter J109 Memory tag
Scanner motor (M5)
Power switch PCA
Carousel home sensor
(SR7)
J119 Fuser pressure release
sensor (SR4)
J128 Rear door open detection
switch (SW1)
J130 ITB
J140
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Table 2-3 Engine control unit PCA connectors (continued)
Item Description Item Description Item Description
J104 Scanner assembly (laser
drive PCA)
J106 Loop sensor (SR3) J112 Pickup motor (M3)
J110 Carousel motor (M1)
Fuser motor (M2)
T2 roller and ITB cleaner
solenoid (SL1)
J140 Low-voltage power supply
J152 Not used
40 Chapter 2 Solve problems ENWW
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Locations of major components
Figure 2-3 Cross section view
1
2 5 6 7 8 3 4
Y
19
K
M
18
C
17
16
Table 2-4 Cross section view
Item Description Item Description
1 Pressure roller 11 ITB
2 Delivery roller 12 Pickup roller
9101112131415
3 Fuser film assembly 13 Separation pad
4 Density ITB TOP sensor 14 Feed roller
5 Toner cartridges 15 T2 roller
6 Photosensitive drum 16 ITB drive roller
7 Imaging drum cartridge 17 ITB cleaning brush
8 Laser/scanner assembly 18 ITB cleaning roller
9 Input tray 19 Fuser
10 T1 brush
ENWW Tools for troubleshooting 41
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Figure 2-4 External covers and doors (base)
8
7
1
2
3
6
Table 2-5 External covers and doors (base)
Item Description Item Description
1 Upper cover assembly 5 Power receptacle
2 Right cover 6 Rear cover assembly
3 Extension tray assembly 7 Dust cover
4 Left cover 8 Cartridge door
4
5
42 Chapter 2 Solve problems ENWW
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General timing chart
Timing chart two consecutive prints on LTR paper (Full-color 1/1 speed mode)
Print command
Figure 2-5 General timing diagram
STBY STBY
Operation INTR PRINT LSTR
7Main motor
8TOP signal
I. GENERAL TIMING CHART
1 Cassette pickup solenoid
4 Delivery sensor
5 Fuser motor
2 Pickup motor
3 TOP sensor
6 Scanner motor
9 ITB_TOP signal
13 T1 bias
14 T2 roller ITB cleaner solenoid
10 Primary charging bias
11 Carousel motor
12 Developing bias
15 T2 bias
ENWW Tools for troubleshooting 43
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General circuit diagram
Figure 2-6 General circuit diagram
Laser Drive PCA
J801
412356789
/BDI
+3.3T
SGND
LDPWM
11
J104
DNSP
ITBTOPPWM
9 82345617
ITB Ass’y
SR3
J601
11
SGND
LDCNT0
DNSGAIN1
LDCNT1
6
11
DNSPWM
DNSGAIN0
10
11
SGND
VDO
/VDO
SGND
4123578910
DNSS
+24V
SGND
ITBTOPSNS
Sensor
Density ITB_TOP
TH801
12
J7L
21
12123
Laser Scanner Ass’y
E-label
SOLD3
SOLD4
(V)
(SB)
J8L
12
21
J8D
J8DH
J130
J128
10 9 8 2345617
12
N.C
SGND
DOORSNS_R
J611
SOLD9
SOLD10
SW1
SR2SR1
J8002
J8004
J8001
M5
M
J802
4321
J705DH
+24V
/SCNACC
/SCNDEC
PGND
VIN
CVSS
17 16 1514 13 12 11 10 9 8 2345617
J109
E-label
SOLD7
SOLD8
VIN(V)
DVSS(R)
21
J118
SR5
J9002
J9001
J9003
J9005
J8003
J9004
M4
M
J704
/MAINMDEC
/MAINMFG
/MAINMACC
MAINMFR
GNDB
1234 5 6 78
J705
PGND
MAINMFR
/MAINMFG
/MAINMDEC
/MAINMACC
Engine Controller Ass’y
PGND
GNDB
+24B
1234 5678
+24B
+24B
J705D
12345678
+24B
ROTHPSNS
Facsimile
J98
14
J99
Formatter
M1
ROTMBN
ROTMA
ROTMAN
Feeder
Automatic
Document
J94
2341
LED(R)
FGND(BK)
SGND(BK)
SENSOR(GR)
132
J95
FSRMB
M2
FSRMBN
121110
321
FSRMA
4
FSRMAN
Image
Scanner
J96
22
J97
SR7
J607 J701 J703J702
12312341234
ROTMB
SGND
+3.3T
8765 4321
J110
14
M3
MMM
FEEDMB
FEEDMBN
FEEDMAN
FEEDMA
654 3 2 1
J112
Scanner Sub Ass’y
COR2
22
J3
13
987653214
SL1
2 1
TR2ICLSLD
+24V
SL
21
J115D
Control Panel
J115L
J115DH
J7
28
MT98
GND
COR3
28
J5
J6
21
J4
21
SGND
/PWSW
LOOPSNS
J106
H801B
H801A
100V 200V
Inlet
SGND
2
21
21
+3.3T
1
J1001
PWSW LED
/VDI
VDI
J7DH
J7D
J107
SGND
MAINTH
SGND(BL)
+3.3T(R)
POUTSNS(Y)
PWSNS(GY)
1234563
J119
VIN(V)
DVSS(R)
SGND(Y)
FSRPRESNS(GY)
+3.3T(BL)
N.C
N.C
67
12345
/TESTPRT
J101A
SGND
+3.3R
IOTR
SGND
IOTT
123456
J102A
MODE0
MODE2
P80
P81
TCK
12345
J108
RLD+
RLD-
J2B
TB2B
TP1B
TB1B
TP
21
21
TSH1B
J2A
TB2A
TP1A
TB1A
TP
21
12
TSH1A
SOLD2
COR1
SOLD1
FU LIVE(W)
231
FU NEUTRAL(W)
J302B
FU LIVE(BK)
FU NEUTRAL(BK)
132
J302A
LIVE1 (BR)
2341
NEUTRAL1 (BL)
J201
Connector PCA
231
J301
FU LIVE(BK)
FU NEUTRAL(W)
J101
J102
FSRD+
13 12 1110 9 8 2345617
J203
Low-voltage
Power Supply PCA
FSRD-
FREQSNS
LVT100V
PWSV
/REM3V V
J103
SCLK
/TOP
/BDO
SGND
SGND
SC
/CCRT
SLPWUP
41235678910111213 13
+24V
PGND
13
SGND
SGND
+3.3R
+3.3R
FEEDSLD
2 1
J152
J140
16 15 1413 12 11 10 9 8 2345617
21
SGND
PISNS
+3.3T
3
+24R (R)
2 1
PGND (BL)
J606
SR6
SL2
SL
+3.3V
J205
21
+24R
FEEDSLD
21
J204
J207
SGND
1
2
44 Chapter 2 Solve problems ENWW
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Internal print-quality test pages
Clean the paper path
LCD control panel
1. From the product control panel, press the Setup
2. Open the Service menu.
3. Select the Cleaning mode option.
4. Press the OK button to begin the cleaning process.
Touchscreen control panel
1.
From the Home screen on the product control panel, touch the Setup
2. Touch the Service menu.
3. Touch the Cleaning Page button.
4. Load plain letter or A4 paper when prompted.
5. Touch the OK button to begin the cleaning process.
The product prints the first side and then displays a prompt to remove the page from the output bin and
reload it in Tray 1, keeping the same orientation. Wait until the process is complete. Discard the page
that prints.
Print Configuration page
button.
button.
LCD control panel
1. From the product control panel, press the Setup
2. Touch the Reports menu.
3. Touch the Configuration Report button, and then touch the OK button to print the page.
Touchscreen control panel
1.
From the Home screen on the product control panel, touch the Setup
2. Touch the Reports menu.
3. Touch the Configuration Report button, and then touch the OK button to print the page.
button.
button.
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Print-quality troubleshooting tools
Repetitive image defects ruler
If the product output has a consistent, repetitive defect, then use the table in this section to determine which
part needs to be cleaned or replaced based on the measured distance between the repetitions of the defect.
NOTE: Spots can be dark or white (dropouts); bands can be all shapes and sizes.
Table 2-6 Repetitive image defects ruler
Component Distance between defects (mm) Type of defects
Developing roller
Primary charging roller
RS roller About 29 Dropouts
Secondary transfer roller About 47 Dropouts
Fuser film About 58 Dropouts
1
1
About 22 Dropouts
About 26 Dropouts
Dark, sharp bands
Dirt on the back of page
Dirt on page
Loose toner
Pressure roller About 63 Dirt on page
Dirt on the back of page
Loose toner
ITB drive roller About 76 Spots
Photosensitive drum
1
The primary charging roller, photosensitive drum, and developing drum cannot be cleaned. If these rollers cause a repetitive defect,
replace the corresponding cartridge, either the imaging-drum cartridge or the developing cartridge.
1
About 95 Dropouts
Dirt on page
46 Chapter 2 Solve problems ENWW
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Calibrate the product
If the printed output has colored shadows, blurry graphics, or areas that have poor color, the product might
need to be calibrated 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,
calibrate the product.
LCD control panel
1. On the product control panel, press the Setup
2. Open the following menus:
●
System Setup
●
Print Quality
●
Calibrate Color
3. Select the Calibrate Now option, and then press the OK button.
Touchscreen control panel
1.
From the Home screen on the product control panel, touch the Setup
2. Open the following menus:
●
System Setup
●
Print Quality
●
Color Calibration
3. Select the Calibrate now option, and then press the OK button.
button.
button.
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Control panel menus
Touchscreen control panel
Setup menu
To open this menu, press the Setup
●
HP Web Services
●
Reports
●
Self Diagnostics
●
Fax Setup
●
System Setup
●
Service
●
Network Setup
HP Web Services menu
NOTE: This menu is also available by touching the Web Services icon on the Home screen.
Table 2-7 HP Web Services menu (touchscreen control panel)
Menu item Description
Enable Web Services If no wired or wireless network connection is available or if Web Services is disabled, use
button. The following sub-menus are available:
Enable Web Services to set up Web Services on the product.
NOTE: The product must be connected to a network to enable HP Web Services.
Display E-mail Address If Web Services is enabled, this option displays the product ePrint email address.
Print Information Sheet If Web Services is enabled, this option prints the HP ePrint mobile printing report. Use
this report to setup ePrint in ePrint Center.
Turn ePrint On/Off If Web Services is enabled, use this option to turn the ePrint function on or off.
Turn Apps On/Off If Web Services is enabled, use this option to turn apps on or off.
Remove Web Services If Web Services is enabled, use this option to disable Web Services and remove the ePrint
address.
Proxy Settings The Proxy Settings sub-menu includes the following:
●
Proxy Server
●
Proxy Port
●
User Name
●
Password
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Reports menu
Table 2-8 Reports menu (touchscreen control panel)
Menu item Description
Demo Page Prints a page that demonstrates print quality.
Menu Structure Prints a control panel menu layout map.
Configuration Prints a list of the product settings.
Supplies Status Prints the toner cartridge status and includes the following information:
Usage Page Displays the number of pages printed by the product.
Print Quality Report Prints a page that helps solve problems with print quality.
●
Approximate pages remaining
●
Supply level
●
Serial number
●
Pages printed with this supply
●
First install date
●
Last used date
Self Diagnostics menu
Table 2-9 Self Diagnostics menu (touchscreen control panel)
Menu item Description
Run Network Test The network test provides information on the following:
Run Fax Test Tests the product fax capabilities.
Fax Setup menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-10 Fax Setup menu (touchscreen control panel)
Menu item Sub-menu item Sub-menu item Description
Fax Set-Up Utility Configures the fax settings. Follow the on-screen
●
Diagnostics summary
●
Troubleshooting
●
Configuration summary
prompts and select the appropriate response for
each question.
Basic Setup Time/Date 12 Hour
24 Hour
Fax Header Sets the identifying information that is sent to the
Sets the time and date setting for the product.
receiving product.
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Table 2-10 Fax Setup menu (touchscreen control panel) (continued)
Menu item Sub-menu item Sub-menu item Description
Answer Mode Automatic*
Manual
TAM
Fax/Tel
Distinctive Ring All Rings*
Single
Double
Triple
Double and Triple
Sets the type of answer mode. The following
options are available:
●
Automatic: The product automatically answers
an incoming call on the configured number of
rings.
●
Manual: The user must touch the Start Fax
button or use an extension phone number to
make the product answer the incoming call.
●
TAM: A telephone answering machine (TAM) is
attached to the Auxiliary phone port of the
product. The product will not pick up any
incoming call, but will listen for fax tones after
the answering machine has picked up the call.
●
Fax/Tel: The product must automatically pick
up the call and determine if the call is a voice
or fax call. If the call is a fax call, the product
handles the call as usual. If the call is a voice
call, an audible synthesized ring is generated
to alert the user of an incoming voice call.
If you use distinctive ring phone service, use this
item to configure how the product responds to
incoming calls.
●
All Rings: The product answers any calls that
come through the telephone line.
●
Single: The product answers any calls that
produce a single-ring pattern.
●
Double: The product answers any calls that
produce a double-ring pattern.
●
Triple: The product answers any calls that
produce a triple-ring pattern.
●
Double and Triple: The product answers any
calls that produce a double-ring or triple-ring
pattern.
Dial prefix On
Off*
Advanced setup Fax Resolution Standard
Fine
Superfine
Photo
Lighter/Darker Sets the darkness for outgoing faxes.
Fit to Page On*
Off
Specifies a prefix number that must be dialed when
sending faxes from the product.
Sets the resolution for sent documents. Higher
resolution images have more dots per inch (dpi), so
they show more detail. Lower resolution images
have fewer dots per inch and show less detail, but
the file size is smaller and the fax takes less time to
transmit.
Shrinks incoming faxes that are larger than the
paper size set for the tray.
50 Chapter 2 Solve problems ENWW
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Table 2-10 Fax Setup menu (touchscreen control panel) (continued)
Menu item Sub-menu item Sub-menu item Description
Glass Size Letter*
A4
Dialing Mode Tone*
Pulse
Redial if Busy On*
Off
Redial if No Answer On
Off*
Redial if Comm. Error On*
Off
Detect Dial Tone On*
Off
Extension Phone On*
Off
Stamp Faxes On
Off*
Sets the default paper size for documents being
scanned from the flatbed scanner.
NOTE: The default setting is determined by the
choice of location during the initial product setup.
Sets whether the product should use tone or pulse
dialing.
Sets whether the product should attempt to redial if
the line is busy.
Sets whether the product should attempt to redial if
the recipient fax number does not answer.
Sets whether the product should attempt to redial
the recipient fax number if a communication error
occurs.
Sets whether the product should check for a dial
tone before sending a fax.
When this feature is enabled, the 1-2-3 buttons on
the extension phone may be pressed to cause the
product to answer an incoming fax call.
Sets the product to print the date, time, sender's
phone number, and page number on each page of
incoming faxes.
Private Receive On
Print faxes
Off*
Allow Fax Reprint On*
Off
Fax/Tel Ring Time Sets the time, in seconds, after which the product
Fax Speed Fast(V.34)*
Medium(V.17)
Slow(V.29)
Setting Private Receive to On requires a product
password. After setting the password, the following
options are set:
●
Private Receive is turned on.
●
All old faxes are deleted from memory.
●
Fax forwarding is set to Off and is not allowed
to be changed.
●
All incoming faxes are stored in memory.
Sets whether incoming faxes are stored in memory
for reprinting later.
should stop sounding the Fax/Tel audible ring to
notify the user of an incoming voice call. The
default setting is 20 seconds.
Sets the allowed fax communication speed.
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System Setup menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-11 System Setup menu (touchscreen control panel)
Menu item Sub-menu item Sub-menu item Description
Language (Lists available control-
panel display
languages.)
Paper Setup Paper Size Letter
Paper Type (Lists available paper
Print Quality Color Calibration Calibrate now
Energy Settings Sleep/Auto Off After 5 Minutes
Wake/Auto On Events Control Panel Touch
Sets the language in which the control panel
A4
Legal
types.)
Power-On Calibration
15 Minutes
30 Minutes
60 Minutes
USB Job
displays messages and product reports.
Sets the size for printing internal reports, faxes, 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, faxes, or
any print job that does not specify a type.
Performs a full calibration.
●
Calibrate Now: Performs an immediate
calibration.
●
Power-On Calibration: Specifies the length of
time the product should wait after it is turned
on before it calibrates.
Specifies the amount of idle time before the product
enters sleep mode.
Select the events that bring the product out of sleep
mode.
LAN Job
Wireless Job
Fax
Auto Off/Manual On
After
Supply Settings Black Cartridge Very Low Setting
Never
2 Hours
4 Hours
8 Hours
Set the amount of elapsed time before the product
turns itself off.
●
Stop: The product stops printing until the
toner cartridge is replaced.
●
Prompt: The product stops printing and
displays a prompt to replace the toner
cartridge. Acknowledge the prompt to
continue printing.
●
Continue* The product displays an alert that
the toner cartridge is very low, but it continues
printing.
52 Chapter 2 Solve problems ENWW
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Table 2-11 System Setup menu (touchscreen control panel) (continued)
Menu item Sub-menu item Sub-menu item Description
Low Threshold Enter a percentage for the low threshold setting.
Color Cartridge Very Low Setting
Low Threshold Set a low threshold percentage setting for the
Image Drum Very Low Setting
●
Stop: The product stops printing until the
toner cartridge is replaced.
●
Prompt: The product stops printing and
displays a prompt to replace the toner
cartridge. Acknowledge the prompt to
continue printing.
●
Continue* The product displays an alert that
the toner cartridge is very low, but it continues
printing.
●
Print Black: When a color toner cartridge
becomes very low, the product prints in black
only to prevent fax interruptions. When the
very low toner cartridge is replaced, color
printing resumes automatically.
colors cartridges.
●
Stop: The product stops printing until the
imaging drum is replaced.
●
Prompt: The product stops printing and
displays a prompt to replace the imaging
drum. Acknowledge the prompt to continue
printing.
●
Continue* The product displays an alert that
the imaging drum is very low, but it continues
printing.
Low Threshold Enter a percentage for the low threshold setting.
Store Usage Data Not on Supplies*
On Supplies
Color Copy On*
Off
Volume Settings Alarm Volume
Ring Volume
Key-Press Volume
Phone Line Volume
Time/Date 12 Hour
24 Hour
Enable or disable the product color copying feature.
Set the volume levels for the product. The following
Sets the time and date setting for the product.
Select where to store the product's usage data,
either on the supplies or not on the supplies.
options are available for each volume setting:
●
Off
●
Soft*
●
Medium
●
Loud
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Service menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-12 Service menu (touchscreen control panel)
Menu item Sub-menu item Description
Fax Service Clear Saved Faxes Clears all faxes in memory.
Run Fax Test Performs a fax test to verify that the phone cord is plugged in the
Print T.30 Trace Prints or schedules a report that is used to troubleshoot fax
Error Correction The error correction mode allows the sending device to re-
Fax Service Log The fax service log prints out the last 40 entries in the fax log.
Cleaning Page Cleans the product when specks or other marks appear on printed
USB Speed High*
Full
correct outlet and that there is a signal on the phone line. A fax
test report is printed indicating the results.
transmission issues. Schedule options include the following:
●
Now
●
Never*
●
If Error
●
At End of Call
transmit data if it detects an error signal.
output. The cleaning process removes dust and excess toner from
the paper path.
When selected, the product displays a prompt 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.
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.
Less Paper Curl When printed pages are consistently curled, this option sets the
Archive Print When printing pages that will be stored for a long time, this
HP Smart Install Enables or disables the HP Smart Install feature on the product.
Restore Defaults Sets all settings to the factory default values.
Signature Check Cancel if Invalid
Prompt if Invalid
product to a mode that reduces curl.
option sets the product to a mode that reduces toner smearing
and dusting.
Validates HP firmware downloads.
54 Chapter 2 Solve problems ENWW
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Network Setup menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-13 Network Setup menu (touchscreen control panel)
Menu item Sub-menu item Description
Wireless Menu 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
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.
TCP/IP Config Automatic*
Manual
Network Services IPv4
IPv6
Link Speed Automatic*
10T Full
10T Half
network.
set 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: Manually configure the IP address, subnet mask, and
default gateway. The control panel displays a prompt 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.
Fax Menu
100TX Full
100TX Half
Restore Defaults Resets all network configurations to their factory defaults.
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-14 Fax Menu (touchscreen control panel)
Menu item Sub-menu item Sub-menu item Description
Fax Reports Fax Confirmation On Every Fax
On Send Fax Only
On Receive Fax Only
Never*
Sets whether the product prints a confirmation
report after a successful fax job.
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Table 2-14 Fax Menu (touchscreen control panel) (continued)
Menu item Sub-menu item Sub-menu item Description
Include First Page On*
Off
Fax Error Report On Every Error*
On Send Error
On Receive Error
Never
Print Last Call Report On*
Off
Fax Activity Log Print Log Now
Auto Log Print
Print Phone Book Prints a list of the speed dials that have been set up
Print Junk Fax List Prints a list of phone numbers that are blocked
Print All Fax Reports Prints all fax-related reports.
Send Options Send Fax Later Send Fax time
Sets whether the product includes a thumbnail
image of the first page of the fax on the report.
Sets whether the product prints a report after a
failed fax job.
Prints a detailed report of the last fax operation,
either sent or received.
Print Log Now: Prints a list of the faxes that have
been sent from or received by this product.
Auto Log Print: Automatically prints a report after
every fax job.
for this product.
from sending faxes to this product.
Allows a fax to be sent at a later time and date.
Send Fax date
Broadcast Fax Sends a fax to multiple recipients.
Fax Job Status Displays pending fax jobs, and allows pending fax
jobs to be cancelled.
Fax Resolution Standard
Fine*
Superfine
Photo
Receive Options Block Junk Faxes Add Number
Delete Number
Delete All Numbers
Print Junk Fax List
Print Private Faxes Prints stored faxes when the private-receive
Reprint Faxes Prints the received faxes stored in available
Sets the resolution for sent documents. Higher
resolution images have more dots per inch (dpi), so
they show more detail. Lower resolution images
have fewer dots per inch and show less detail, but
the file size is smaller.
Modifies the junk fax list. The junk fax list can
contain up to 30 numbers. When the product
receives a call from one of the junk fax numbers, it
deletes the incoming fax. It also logs the junk fax in
the activity log along with job accounting
information.
feature is turned on. The product displays a prompt
for the system password.
memory. This item is available only if the Allow Fax
Reprint feature is turned on in the Fax Setup menu.
56 Chapter 2 Solve problems ENWW
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Table 2-14 Fax Menu (touchscreen control panel) (continued)
Menu item Sub-menu item Sub-menu item Description
Copy Menu
Forward Fax On
Off*
Polling Receive Allows the product to call another fax machine that
Phone Book Setup Individual Setup Edits the fax phone book speed dial entries.
Delete Entry Deletes a specific phone book entry.
Delete All Entries Deletes all entries in the phone book.
Print Report Now Prints a list of all the individual dial entries in the
Change Defaults Fax Setup Utility Opens the Fax Setup menu.
Sets product to send all received faxes to another
fax machine.
has polling send enabled.
phone book.
To open this menu, touch the Copy button on the Home screen, and then touch the Settings button.
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-15 Copy Menu (touchscreen control panel)
Menu item Sub-menu item Description
Number of Copies Specifies the number of copies.
Reduce/Enlarge Original=100%*
A4 to Letter=94%
Letter to A4=97%
Full Page=91%
Fit to Page
2 Pages per Sheet
4 Pages per Sheet
Custom: 25 to 400%
Lighter/Darker Specifies the contrast of the copy.
Optimize Draft
Mixed*
Text
Picture
Paper Letter
Legal
A4
Specifies the size of the copy.
Specifies the type of content in the original document, so the
copy is the best match for the original.
Specifies the paper size.
NOTE: The default paper size setting is determined by the
choice of location during the initial product setup.
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Table 2-15 Copy Menu (touchscreen control panel) (continued)
Menu item Sub-menu item Description
Collation On
Off*
Image Adjustment Lightness
Contrast
Sharpen
Background Removal
Color Balance
Set as New Defaults Saves any changes made to this menu as the new defaults.
Restore Defaults Restores the factory defaults for this menu.
Specifies whether to collate copy jobs.
Adjusts the image quality settings for copies.
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LCD control panel
Setup menu
To open this menu, press the Setup
●
HP Web Services
●
Copy Setup
●
ID Copy
●
Reports
●
Self Diagnostics
●
System Setup
●
Service
●
Network Setup
HP Web Services menu
Table 2-16 HP Web Services menu (LCD control panel)
Menu item Description
Display E-mail Address If Web Services is enabled, this option displays the product ePrint email address.
Info Sheet If Web Services is enabled, this option prints the HP ePrint mobile printing report. Use
button. The following sub-menus are available:
this report to setup ePrint in ePrint Center.
ePrint On/Off If Web Services is enabled, use this option to turn the ePrint function on or off.
Remove Services If Web Services is enabled, use this option to disable Web Services and remove the ePrint
Copy Setup menu
To open this menu, press the Copy Menu
items, press the Copy Menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-17 Copy Setup menu (LCD control panel)
Menu item Sub-menu item Description
Optimize Draft
Light/Dark Specifies the contrast of the copy.
Collation On
address.
button on the product control panel. To scroll between the menu
button again.
Specifies the type of content in the original document, so the
copy is the best match for the original.
Mixed*
Text
Picture
Specifies whether to collate copy jobs.
Off*
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Table 2-17 Copy Setup menu (LCD control panel) (continued)
Menu item Sub-menu item Description
Image Adjustment Lightness
Contrast
Sharpen
Background Removal
Color Balance
Number of Copies Specifies the number of copies.
Reduce/Enlrg Original=100%*
A4 to Letter=94%
Letter to A4=97%
Full Page=91%
2 Pages per Sheet
4 Pages per Sheet
Custom: 25 to 400%
Set as Defaults Saves any changes made to this menu as the new defaults.
Restore Defaults Restores the factory defaults for this menu.
Adjusts the image quality settings for copies.
Specifies the size of the copy.
ID Copy menu
Copies both sides of identification cards, or other small-size documents, onto the same side of one sheet of
paper.
Table 2-18 ID Copy menu (LCD control panel)
Menu item Description
Color Sets the color mode as the default for ID copies.
Black & White Sets the black and white mode as the default for ID copies.
Reports menu
Table 2-19 Reports menu (LCD control panel)
First level Description
Demo Page Prints a page that demonstrates print quality.
Menu Structure Prints a control-panel menu layout map.
Config Report Prints a list of the product settings.
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Table 2-19 Reports menu (LCD control panel) (continued)
First level Description
Supplies Status Prints the toner cartridge status. Includes the following information:
Usage Report Displays the number of pages printed, copied, and scanned by the product.
Print Quality Report Prints a page that helps solve problems with print quality.
Self Diagnostics menu
Table 2-20 Self Diagnostics menu (LCD control panel)
Menu item Description
Run Network Test The network test provides information on the following:
●
Approximate pages remaining
●
Supply level
●
Serial number
●
Number of pages printed
●
First install date
●
Last used date
Run Fax Test Tests the product fax capabilities.
System Setup menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-21 System Setup menu (LCD control panel)
Menu item Sub-menu item Sub-menu item Sub-menu item Description
Language (Lists available
Paper setup Def. paper size Letter
Def. paper type (Lists available
control-panel
display languages.)
●
Diagnostics summary
●
Troubleshooting
●
Configuration summary
Sets the language in which the control
panel displays messages and product
reports.
Sets the default paper size for printing
A4
Legal
Sets the default paper type for printing
paper types.)
internal reports or any print job that does
not specify a size.
internal reports or any print job that does
not specify a type.
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Table 2-21 System Setup menu (LCD control panel) (continued)
Menu item Sub-menu item Sub-menu item Sub-menu item Description
Print Quality Calibrate Color Calibrate Now
After Power On
Energy Settings Sleep/Auto Off
after
Wake/Auto On
Events
Auto Off/Manual
On after
5 Minutes
15 Minutes
30 Minutes
60 Minutes
Button Press
USB Job
LAN Job
Wireless Job
Never
2 Hours
4 Hours
Performs a full calibration.
●
Calibrate Now: Performs an
immediate calibration.
●
After Power On: Specifies the length
of time the product should wait after
it is turned on before it calibrates.
Specifies the amount of idle time before
Select the events that bring the product
Set the amount of elapsed time before the
the product enters sleep mode.
out of sleep mode.
product turns itself off.
8 Hours
Volume Settings Alarm volume
Key-press volume
Time/Date Sets the time and date setting for the
Supply Settings Black Cartridge Very Low Setting
Low Threshold Enter a percentage for the low threshold
Set the volume levels for the product. The
following options are available for each
volume setting:
●
Off
●
Soft*
●
Medium
●
Loud
product.
●
●
●
Stop
Prompt
Continue*
●
Stop: The product stops printing until
the toner cartridge is replaced.
●
Prompt: The product stops printing
and displays a prompt to replace the
toner cartridge. Acknowledge the
prompt to continue printing.
●
Continue*: The product displays an
alert that the toner cartridge is very
low, but it continues printing.
setting.
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Table 2-21 System Setup menu (LCD control panel) (continued)
Menu item Sub-menu item Sub-menu item Sub-menu item Description
Color Cartridge Very Low Setting
Low Threshold Set a low threshold percentage setting for
Image Drum Very Low Setting
●
●
●
●
●
●
Stop
Prompt
Continue*
Stop
Prompt
Continue*
●
Stop: The product stops printing until
the toner cartridge is replaced.
●
Prompt: The product stops printing
and displays a prompt to replace the
toner cartridge. Acknowledge the
prompt to continue printing.
●
Continue*: The product displays an
alert that the toner cartridge is very
low, but it continues printing.
●
Print Black: When a color toner
cartridge becomes very low, the
product prints in black only. When
the very low toner cartridge is
replaced, color printing resumes
automatically.
the colors cartridges.
●
Stop: The product stops printing until
the imaging drum the replaced.
●
Prompt: The product stops printing
and displays a prompt to replace the
imaging drum. Acknowledge the
prompt to continue printing.
●
Continue*: The product displays an
alert that the imaging drum is very
low, but it continues printing.
Low Threshold Enter a percentage for the low threshold
Store Usage Data Not on Supplies*
On Supplies
Color Copy On
Off
Enable or disable the product color
Select where to store the product's usage
setting.
data, either on the supplies or not on the
supplies.
copying feature.
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Service menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-22 Service menu (LCD control panel)
Menu item Sub-menu item Description
Restore Defaults Sets all settings to the factory default values.
Cleaning mode Cleans the product when specks or other marks appear on printed
Less paper curl On*
Off
USB speed High*
Full
Archive Print Off*
On
Smart Install On*
Off
Signature Check Cancel if Invalid
Prompt if Invalid
output. The cleaning process removes dust and excess toner from
the paper path.
When selected, the product displays a prompt to load plain Letter
or A4 paper in Tray 1. Press the OK button to begin the cleaning
process. Wait until the process completes. Discard the page that
prints.
When printed pages are consistently curled, this option sets the
product to a mode that reduces curl.
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 printing pages that will be stored for a long time, this
option sets the product to a mode that reduces toner smearing
and dusting.
Enable or disable the HP Smart Install feature on the product.
Validates HP firmware downloads.
Network Setup menu
In the following table, items that have an asterisk (*) indicate the factory default setting.
Table 2-23 Network Setup menu (LCD control panel)
Menu item Sub-menu item Sub-menu item Description
Wireless Menu Wireless Direct Manage the product's wireless direct settings.
Wireless Radio Enables or disables the wireless radio feature.
Network Test Tests the wireless network and prints a report with
the results.
WPS Setup Choose the method of connecting to the router,
either push button or PIN.
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Table 2-23 Network Setup menu (LCD control panel) (continued)
Menu item Sub-menu item Sub-menu item Description
TCP/IP config Automatic*
Manual
Show IP address Displays the product IP address.
Network services IPv4
IPv6
Wired Menu TCP/IP config Automatic*
Link Speed Automatic*
Enable or disable the IPv4 and IPv6 protocols. By
Manual
Automatic: The product automatically configures all
the TCP/IP settings via DHCP, BootP or AutoIP.
Manual: Manually configure the IP address, subnet
mask, and default gateway. The control panel
displays a prompt 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.
default, each protocol is enabled.
Automatic: The product automatically configures all
the TCP/IP settings via DHCP, BootP or AutoIP.
Manual: Manually configure the IP address, subnet
mask, and default gateway. The control panel
displays a prompt 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.
Sets the link speed manually if needed.
10T Full
10T Half
100TX Full
100TX Half
Restore Defaults Resets all network configurations to their factory
After setting the link speed, the product
automatically restarts.
defaults.
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Interpret control-panel messages
Control-panel message types
Alert and warning messages appear temporarily and might require acknowledgement of the message by
pressing the OK button to resume or by pressing the Cancel
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 warning 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
Table 2-24 Control-panel messages
Control panel message Description Recommended action
button to cancel the job. With certain
22 Scanner Error The product has experienced an internal
50.X Fuser Error
Turn off then on
52 Scanner Error
Turn off then on
hardware error.
The product has experienced an internal
hardware error.
The product has experienced a scanner error. Turn off the power by using the power switch,
1. Check all of the FFC connections.
2. Verify that the scanner-carriage can move
along the track in the scanner assembly,
and that the scanner motor can rotate.
3. If the error persists, replace the FFC cable.
4. If the error persists, replace the scanner
motor or the scanner carriage.
5. If the error persists, replace the
formatter.
1. Turn off the power by using the power
switch, and then wait at least 30 seconds.
2. If a surge protector is being used, remove
it. Plug the product directly into the wall
socket.
3. Turn on the power and wait for the
product to initialize.
4. If the error persists, replace the fuser.
wait at least 30 seconds, and then turn on the
power and wait for the product to initialize.
If a surge protector is being used, remove it.
Plug the product directly into the wall socket.
Use the power switch to turn the product on.
If the error persists, replace the scanner
assembly.
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Table 2-24 Control-panel messages (continued)
Control panel message Description Recommended action
Comm. error A fax communication error occurred between
the product and the sender or receiver.
Device error
Press [OK]
Door open The toner-cartridge door is open. Close the door.
Fax delayed
Send memory full
Fax is busy
Canceled send
The product experienced an internal
communication error.
Fax memory is full. Cancel the fax by pressing the Cancel
The receiving fax line was busy. The product
has canceled sending the fax.
Allow the product to retry sending the fax.
Unplug the product telephone cord from the
wall, plug in a telephone, and try making a call.
Plug the product phone cord into a jack for
another phone line.
Try a different phone cord.
If the error persists, replace the fax PCA.
This is a warning message only. Job output
might be affected.
button. Resend the fax. Resend the fax in
multiple sections if the error occurs again.
Call the recipient to ensure that the fax
machine is on and ready.
Check that the fax number is correct.
Check that the Redial if busy option is enabled.
Check for a dial tone on the phone line by
pressing the Start Fax
control panels or by touching the Fax button on
touchscreen control panels.
button on LCD
Make sure that the phone line is working by
disconnecting the product, connecting a
telephone to the phone line, and making a
voice call.
Connect the product phone cord to a jack for
another phone line, and then try sending the
fax again.
Try a different phone cord.
If the error persists, replace the fax PCA.
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Table 2-24 Control-panel messages (continued)
Control panel message Description Recommended action
Fax is busy
Redial pending
Fax memory full
Canceling recv.
The receiving fax line was busy. The product
automatically redials the busy number.
During the fax transmission, the product ran
out of memory. Only the pages that fit into
memory will be printed.
Allow the product to retry sending the fax.
Call the recipient to ensure that the fax
machine is on and ready.
Check that the fax number is correct.
Check for a dial tone on the phone line by
pressing the Start Fax
control panels or by touching the Fax button on
touchscreen control panels.
Make sure that the phone line is working by
disconnecting the product, connecting a
telephone to the phone line, and making a
voice call.
Connect the product phone cord to a jack for
another phone line, and then try sending the
fax again.
Try a different phone cord.
If the error persists, replace the fax PCA.
Print all of the faxes, and then have the sender
resend the fax. Have the sender divide the fax
job into multiple jobs before resending. Cancel
all fax jobs or clear the faxes from memory.
button on LCD
Fax memory full
Canceling send
During the fax job, the memory filled. All pages
of the fax have to be in memory for a fax job to
work correctly. Only the pages that fit into
memory were sent.
Print all received faxes or wait until all pending
faxes are sent.
Ask the sender to send the fax again.
Cancel all fax jobs or clear the faxes from
memory.
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Table 2-24 Control-panel messages (continued)
Control panel message Description Recommended action
Fax recv. error An error occurred while trying to receive a fax. Ask the sender to resend the fax.
Try faxing back to the sender or another fax
machine.
Check for a dial tone on the phone line by
pressing the Start Fax
control panels or by touching the Fax button on
touchscreen control panels.
Check that the telephone cord is securely
connected by unplugging and replugging the
cord.
Make sure to use the telephone cord that came
with the product.
Make sure that the phone line is working by
disconnecting the product, connecting a
telephone to the phone line, and making a
voice call.
Decrease the fax speed. Ask the sender to
resend the fax.
Turn off error-correction mode. Ask the sender
to resend the fax.
button on LCD
Connect the product to a different phone line.
If the error persists, replace the fax PCA.
Fax Send error An error occurred while trying to send a fax. Try resending the fax.
Try faxing to another fax number.
Check for a dial tone on the phone line by
pressing the Start Fax
control panels or by touching the Fax button on
touchscreen control panels.
Check that the telephone cord is securely
connected by unplugging and replugging the
cord.
Make sure to use the telephone cord that came
with the product.
Make sure that the phone line is working by
disconnecting the product, connecting a
telephone to the phone line, and making a
voice call.
Connect the product to a different phone line.
Set the fax resolution to Standard instead of
the default of Fine.
button on LCD
If the error persists, replace the fax PCA.
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Table 2-24 Control-panel messages (continued)
Control panel message Description Recommended action
Jam in <location> The product has detected a jam in the location
indicated in the message.
Load paper <TYPE>, <SIZE> The tray is empty. Load the tray with the correct type and size of
Memory is low
Press [OK]
Misprint
Press [OK]
No dial tone The product could not detect a dial tone. Check for a dial tone on the phone line by
The product does not have enough memory to
process the job.
The product has experienced an internal
hardware error.
Clear the jam from the area indicated in the
message, and then follow the control-panel
instructions. Clearing some jams requires the
top cover to be opened and the toner cartridge
to be removed.
paper.
If the product is processing other jobs, send the
job again after those jobs have finished.
If the problem continues, turn off the power by
using the power switch, and then wait at least
30 seconds. Turn on the power and wait for the
product to initialize.
Press the OK button to continue. Job output
might be affected.
pressing the Start Fax
control panels or by touching the Fax button on
touchscreen control panels.
Disconnect the telephone cord from both the
product and the wall and reconnect the cord.
Make sure to use the telephone cord that came
with the product.
button on LCD
No document sent The product did not scan any pages, or it did
not receive any pages from the computer to
transmit a fax.
Disconnect the product telephone cord from
the wall, connect a telephone, and try making a
voice call.
Make sure that the phone cord from the wall
telephone jack is connected to the fax
Connect the product phone cord to a jack for
another phone line.
If the error persists, replace the fax PCA.
Try sending the fax again.
port.
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Table 2-24 Control-panel messages (continued)
Control panel message Description Recommended action
No fax answer.
Canceled send
No fax answer.
Redial pending
Attempts to redial a fax number failed, or the
Redial if no answer option was turned off.
The receiving fax line did not answer. The
product attempts to redial after a few minutes.
Call the recipient to ensure that the fax
machine is on and ready.
Check that the fax number is correct.
Check that the redial option is enabled.
Disconnect the telephone cord from both the
product and the wall and reconnect the cord.
Disconnect the product telephone cord from
the wall, connect a telephone, and try making a
voice call.
Make sure that the phone cord from the wall
telephone jack is connected to the fax
Connect the product phone cord to a jack for
another phone line.
If the error persists, replace the fax PCA.
Allow the product to retry sending the fax.
Call the recipient to ensure that the fax
machine is on and ready.
Check that the fax number is correct.
If the product continues to redial, disconnect
the product telephone cord from the wall,
connect a telephone, and try making a voice
call.
port.
No fax detected The product answered the incoming call but did
not detect that a fax machine was calling.
Make sure that the phone cord from the wall
telephone jack is connected to the fax
Connect the product phone cord to a jack for
another phone line.
Try a different phone cord.
If the error persists, replace the fax PCA.
Allow the product to retry receiving the fax.
Try a different phone cord.
Connect the product phone cord to a jack for
another phone line.
If the error persists, replace the fax PCA.
port.
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Table 2-24 Control-panel messages (continued)
Control panel message Description Recommended action
Page too complex
Press [OK]
Settings cleared
or
Job settings cleared
The product could not print the current page
because of its complexity.
The product has cleared job settings. Re-enter any appropriate job settings.
Press the OK button to clear the message.
Allow the product to finish the job, or press the
Cancel
button to cancel the job.
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Clear jams
When clearing jams, be careful not to tear jammed paper. If a small piece of paper remains in the product, it
could cause additional jams.
Solve paper feed or jam problems
If the product has recurring problems with paper feeding or with jams, use the following information to
reduce the number of occurrences.
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 size and type are set correctly on the product control panel.
4. Make sure the paper guides in the tray are adjusted correctly for the size of paper. Adjust the guides to
the appropriate indentation in the tray.
5. 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.
6. The rollers above the tray might be contaminated. Clean the rollers with a lint-free cloth dampened
with warm water.
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. Adjust the guides to
the appropriate indentation in the tray.
6. Make sure the printing environment is within recommended specifications.
Frequent or recurring paper jams
Follow these steps to solve problems with frequent paper jams. If the first step does not resolve the problem
continue with the next step until you have resolved the problem.
1. If paper has jammed in the product, clear the jam and then print a configuration page to test the
product.
2. Check that the tray is configured for the correct paper size and type on the product control panel. Adjust
paper settings if necessary.
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3. Turn the product off, wait 30 seconds, and then turn it on again.
4. Print a cleaning page to remove excess toner from inside the product.
a. From the Home screen on the product control panel, touch the Setup
b. Touch the Service menu.
c. Touch the Cleaning Page button.
d. Load plain letter or A4 paper when you are prompted.
e. Touch the OK button to begin the cleaning process.
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. Wait until the process is complete. Discard the
page that prints.
5. Print a configuration page to test the product.
a. From the Home screen on the product control panel, touch the Setup
b. Touch the Reports menu.
c. Touch the Configuration Report button.
If none of these steps resolves the problem, the product might need service. Contact HP customer support.
Prevent paper jams
To reduce the number of paper jams, try these solutions.
button.
button.
1. Use only paper that meets HP specifications for this product.
2. Use paper that is not wrinkled, folded, or damaged. If necessary, use paper from a different package.
3. Use paper that has not previously been printed or copied on.
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. Adjust the guides so
they are touching the paper stack without bending it.
6. Make sure that the tray is fully inserted in the product.
7. If you are printing on heavy, embossed, or perforated paper, use the manual feed feature and feed
sheets one at a time.
8. Verify that the tray is configured correctly for the paper type and size.
9. Make sure the printing environment is within recommended specifications.
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Clear jams from the input tray
A Jam in print paper path. Open door and clear jam. message displays on the product control panel.
1. Remove the dust cover from the tray.
2. Remove the stack of paper from the input tray.
3. Remove any jammed paper visible in the input
tray area. Use both hands to remove jammed
paper to avoid tearing the paper.
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4. Lift the scanner assembly.
5. Open the top cover.
6. Removed any jammed paper.
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7. Close the top cover.
8. Lower the scanner assembly.
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9. Reload paper in the input tray. Make sure that the
paper fits under the tabs and below the
maximum-height indicators.
10. Reinstall the dust cover on the tray.
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Clear jams in the output bin
A Jam in output bin message displays on the product control panel.
1. If paper is visible in the output bin, grasp the
leading edge with both hands and slowly remove
it.
2. Open the rear door to check for jammed paper.
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3. Remove any jammed paper. Use both hands to
pull out the paper to avoid tearing.
4. Close the rear door.
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Clear jams in the document feeder
A Jam in the document feeder message displays on the product control panel.
1. If paper is visible in the document feeder, grasp
the leading edge with both hands and slowly
remove it.
2. Lift the document feeder input tray.
3. Lift the jam-access cover.
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4. Remove any jammed paper. Use both hands to
pull out the paper to avoid tearing.
5. Close the jam-access cover.
6. Close the document-feeder input tray.
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