HP Sender ScanJet 8500 Service Manual
HP Scanjet Enterprise 8500 fn1
HP Digital Sender Flow 8500 fn1
Service Manual
8500 fn1
Service Manual
Copyright and license
© 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: L2717-90014
Edition 2, 10/2013
Trademark credits
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and Windows Vista® are U.S. registered
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Table of contents
1 Theory of operation .......................................................................................................... 1
Flatbed scanner and ADF assembly ............................................................................................ 3
Network electronics assembly .................................................................................................... 4
User interface assembly ............................................................................................................ 6
2 Removal and replacement ................................................................................................ 7
Introduction ............................................................................................................................. 8
Removal and replacement strategy ............................................................................................. 9
Electrostatic discharge ............................................................................................................ 10
Required tools ........................................................................................................................ 11
Types of screws ..................................................................................................................... 12
Service approach ................................................................................................................... 15
Before performing service ........................................................................................ 15
Backup product data ................................................................................ 15
After performing service ........................................................................................... 15
Restore product data ................................................................................ 16
Save and repair process ........................................................................... 16
Post-service test ....................................................................................................... 16
Quality test .............................................................................................. 17
Customer self repair (CSR) assemblies ...................................................................................... 18
ADF rollers ............................................................................................................. 18
Remove the ADF rollers: ............................................................................ 18
Separation pad ........................................................................................ 21
Update the document feeder kit replacement history ..................................... 22
Set the Very Low Settings option from the control panel ................................. 22
Control-panel assembly ............................................................................................ 24
Reinstall the control-panel assembly ............................................................ 25
Hard disk drive ....................................................................................................... 26
Remove the hard disk drive ....................................................................... 26
Reinstall the hard disk drive ........................................................ 29
Reload the firmware .................................................................. 29
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Formatter PCA ........................................................................................................ 31
Reinstall the formatter PCA ........................................................................ 36
Keyboard assembly ................................................................................................. 36
Internal assemblies ................................................................................................................. 39
Flatbed scanner and ADF assembly ........................................................................... 39
Remove the flatbed scanner and ADF assembly: ........................................... 39
Reinstall the flatbed scanner and ADF assembly ............................ 42
Power-button assembly ............................................................................................. 44
Remove the power-button assembly ............................................................ 44
Reinstall the power-button assembly ............................................................ 45
Interconnect cable, scanner cable, and control-panel cable .......................................... 46
Remove the scanner cable, control-panel cable, and interconnect cable .......... 46
Interconnect PCA, fan assembly, and DC controller PCA .............................................. 53
Remove the interconnect PCA, fan assembly, and DC controller PCA: ............. 53
3 Solve problems ............................................................................................................... 59
Solve problems checklist ......................................................................................................... 60
Administration Menu Map ....................................................................................................... 61
Preboot menu options ............................................................................................................. 62
Current settings page .............................................................................................................. 63
Troubleshooting process .......................................................................................................... 64
Determine the problem source ................................................................................... 64
Troubleshooting flowchart ......................................................................... 65
Power subsystem ..................................................................................................... 68
Power-on checks ...................................................................................... 68
Power-on troubleshooting overview .............................................. 68
Firmware startup steps ............................................................... 69
Control-panel checks ............................................................................................... 73
Control-panel checks from the control panel ................................................. 73
Control-panel checks from diagnostic mode ................................................. 73
Generate debug data .............................................................................................. 75
Check the maintenance history ................................................................................. 75
Check the number of scans ....................................................................................... 75
Tools for troubleshooting ......................................................................................................... 76
Component diagnostics ............................................................................................ 76
LED diagnostics ........................................................................................ 76
LED indicators on the formatter .................................................... 76
Interpret control-panel status lights ............................................... 77
Engine diagnostics ................................................................................... 77
Verify power to the flatbed scanner and ADF assembly .................. 77
Test simplex scanning ................................................................ 78
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Test duplex scanning ................................................................. 78
Sensor test ............................................................................................... 78
Paper present sensor .................................................................. 78
ADF hatch sensor ...................................................................... 79
Flatbed cover sensor .................................................................. 79
Multi-Pick sensor ........................................................................ 79
Internal test pages ................................................................................................... 80
Configuration pages ................................................................................. 80
Configuration page ................................................................... 80
HP embedded Jetdirect page ...................................................... 82
Finding important information on the configuration pages .............. 83
Usage page ............................................................................................ 84
File Directory page ................................................................................... 85
Web Services Status Page ......................................................................... 86
Use HP Embedded Web Server features .................................................................... 86
Information tab ........................................................................................ 87
Control panel menus ................................................................................................ 87
Administration menu ................................................................................. 88
Reports menu ............................................................................ 88
General Settings menu ............................................................... 89
Scan/Digital Send Settings menu ................................................ 90
Fax Settings menu ..................................................................... 93
Display Settings menu ................................................................ 94
Manage Supplies menu ............................................................. 95
Network Settings menu .............................................................. 96
Troubleshooting menu ................................................................ 98
Device Maintenance menu ........................................................................ 99
Backup/Restore menu ................................................................ 99
Calibrate/Cleaning menu ........................................................ 100
USB Firmware Upgrade menu ................................................... 100
Service menu .......................................................................... 100
Interpret control-panel messages ............................................................................. 101
Control-panel message types ................................................................... 101
Control-panel messages .......................................................................... 101
20.00.00 Insufficient memory: <Device> To continue, touch “OK” 101
30.01.10 Scanner Failure ........................................................ 102
30.01.23 Scanner Calibration Failure ....................................... 102
30.01.36 Upgrade Error Try downloading upgrade again .......... 102
30.01.40 Scanner Communication Failure ................................. 102
30.01.47 Document Feeder Not Detected .................................. 103
30.01.YY Scanner Failure ........................................................ 103
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31.01.02 Jam in document feeder ............................................ 103
31.01.03 Document feeder pick error ....................................... 104
40.00.01 USB I/O buffer overflow To continue, touch “OK” ........ 104
40.00.02 Embedded I/O buffer overflow To continue, touch
“OK” ..................................................................................... 104
40.00.03 EIO <X> buffer overflow To continue, touch “OK” ........ 105
40.00.04 EIO <X> bad transmission To continue, touch “OK” ..... 105
40.00.05 Embedded I/O bad transmission To continue, touch
“OK” ..................................................................................... 105
49.XX.YY Error To continue turn off then on ................................ 105
57.10.01 The fan has failed Turn off and contact the administrator 106
62.00.00 No system To continue turn off then on ........................ 106
80.0X.YY Embedded JetDirect Error To continue turn off then on ... 106
98.00.0X Corrupt data in X volume ........................................... 107
Cleaning disk <X>% complete Do not power off ......................... 107
Digital send communication error .............................................. 107
Digital send communication error .............................................. 107
Disk full Delete stored jobs ........................................................ 108
Document feeder bin full .......................................................... 108
Document feeder is empty ........................................................ 108
Document feeder top cover open ............................................... 108
Event log is empty ................................................................... 108
Flatbed cover open .................................................................. 109
Initializing... ........................................................................... 109
Internal disk not found ............................................................. 109
Internal disk not functional ........................................................ 109
Internal disk not initialized ........................................................ 109
Moving solenoid To exit press ................................................... 110
Moving solenoid and motor To exit press ................................... 110
Performing Paper Path Test… .................................................... 110
Replace Document Feeder Kit ................................................... 110
Unable to cancel firmware update job ....................................... 110
Unable to Install ...................................................................... 111
Unable to install the firmware ................................................... 111
Unsupported USB accessory detected Remove USB accessory ....... 111
Upgrade complete To continue turn off then on ........................... 112
USB accessory needs too much power Remove USB Accessory
and Turn Off then On .............................................................. 112
USB needs too much power ...................................................... 112
USB storage accessory removed Clearing any associated data ..... 112
Event log messages ............................................................................................... 112
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Show an event log ................................................................................. 113
Clear the event log ................................................................................. 113
Event log message table .......................................................................... 113
Clear jams .......................................................................................................................... 136
Clear jams from the paper path .............................................................................. 136
Solve paper-handling problems .............................................................................................. 138
Paper jamming, skewing, misfeeds, or multiple-page feeds ......................................... 138
Paper does not feed from the product ...................................................................... 138
Originals are curling up in the document output tray .................................................. 139
The bottom of the scanned image is cut off ............................................................... 139
The scanned images have streaks or scratches .......................................................... 139
An item loaded in the document input tray jams repeatedly ........................................ 139
The product has stopped working correctly ............................................................... 140
Clean the product ................................................................................................................ 141
Clean the touchscreen ........................................................................................... 141
Clean the scanning glass, scanning strip, and automatic document feeder (ADF) duplex
background .......................................................................................................... 141
Clean the rollers .................................................................................................... 144
Set the Very Low Settings option from the control panel ............................... 145
Solve connectivity problems ................................................................................................... 146
Check the Ethernet connection ................................................................................ 147
Service mode functions ......................................................................................................... 148
Service menu ........................................................................................................ 148
Product resets ....................................................................................................... 151
Restore factory settings ............................................................................ 151
Clean Disk and Partial Clean functions ..................................................... 151
Active and repository firmware locations .................................... 151
Partial Clean ........................................................................... 152
Clean Disk ............................................................................. 153
Preboot menu options ........................................................................................................... 155
Solve fax problems ............................................................................................................... 162
Internet Fax setup .................................................................................................. 162
LAN Fax setup ...................................................................................................... 162
Solve e-mail problems ........................................................................................................... 164
Validate the SMTP gateway address ........................................................................ 164
Validate the LDAP gateway address ........................................................................ 164
Product updates ................................................................................................................... 165
Determine the installed revision of firmware .............................................................. 165
Perform a firmware upgrade ................................................................................... 165
HP Embedded Web Server ...................................................................... 165
USB storage device (Preboot menu) .......................................................... 166
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USB storage device (control-panel menu) ................................................... 167
4 Parts ............................................................................................................................ 169
Order parts by authorized service providers ............................................................................ 170
Order parts, accessories, and supplies .................................................................... 170
Customer-self repair parts ....................................................................................... 170
Internal assemblies ................................................................................................ 171
Appendix A Service and support ..................................................................................... 173
Hewlett-Packard limited warranty statement ............................................................................. 174
End User License Agreement .................................................................................................. 176
Customer self-repair warranty service ..................................................................................... 179
Customer support ................................................................................................................. 180
Appendix B Product specifications ................................................................................... 181
Physical specifications .......................................................................................................... 182
Document feeder specifications .............................................................................................. 182
Power consumption .............................................................................................................. 182
Environmental specifications .................................................................................................. 183
Regulatory model number ..................................................................................................... 183
Appendix C Regulatory information ................................................................................. 185
Environmental product stewardship program ........................................................................... 186
Protecting the environment ...................................................................................... 186
Plastics ................................................................................................................. 186
Power consumption ............................................................................................... 186
Material restrictions ............................................................................................... 186
Disposal of waste equipment by users in private households in the European Union ...... 187
Chemical substances ............................................................................................. 187
For more information ............................................................................................. 187
Certificate of Volatility .......................................................................................................... 188
Volatile memory .................................................................................................... 188
Non-volatile memory ............................................................................................. 188
Hard disk drive memory ......................................................................................... 188
Index ............................................................................................................................... 189
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1 Theory of operation
NOTE: The name for this product was changed to include the word “Flow”. There is no functional
difference between the HP Scanjet Enterprise 8500 fn1 (L2717A) and the HP Digital Sender Flow
8500 fn1 (L2719A). Service parts containing the product name have been updated to include the
words “Digital Sender” and “Flow”.
The 8500 fn1 is a fleet-compliant network scanner with an integrated legal-size flatbed scanner and
single-pass duplex automatic document feeder (ADF). The input tray for the ADF holds 100 pages of
standard size paper and can scan at 60 pages per minute (ppm) for simplex scanning and 120 ppm
for duplex scanning.
The product has three hardware subassemblies:
Flatbed scanner and ADF assembly
●
Network electronics assembly
●
User interface (control panel) assembly
●
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Figure 1-1 Hardware subassemblies
2 Chapter 1 Theory of operation ENWW
Flatbed scanner and ADF assembly
The scanner can scan paper up to 216 mm (8.5 in) x 863.6 mm (34 in) in size. Paper must be placed
in the ADF input tray or on the flatbed glass before the scanning can be initiated. Output from the
scanner is in .JPEG format and is transferred to a network using a Hi-Speed USB interface.
The major hardware components associated with this assembly are:
ADF with an integrated scan module
●
Flatbed scanner assembly
●
Scanner control-board assembly
●
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Flatbed scanner and ADF assembly
3
Network electronics assembly
The network electronics assembly controls all functions within the product and provides a connection to
the external gigabit network interface for the product. This assembly only accepts files from a USB
interface in .JPEG format from the flatbed scanner and ADF assembly. The assembly stores the files on
the encrypted hard disk drive for additional post-scan processing and routing based on the options
selected by the user.
Figure 1-2 Network electronics assembly overview
4 Chapter 1 Theory of operation ENWW
Table 1-1 Network electronic assembly components
Subassembly Subassembly Subassembly Subassembly
Network electronics (formatter
board)
Interconnect circuit board
(ICB)
Power button board
Power input board
Interface cables From ICB USB cable to scanner
USB cable to control panel
ICB cable assembly DC power cable to scanner
Power/reset control to
System power button board
(non-standard voltages)
scanner
The interconnect circuit board (ICB) subassembly within the network electronics assembly is the main
communication interface for all system assemblies. This ICB controls the power sequencing of all
assemblies and the system fan. All communication interfaces are routed through this assembly.
Figure 1-3 ICB connections
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Network electronics assembly
5
User interface assembly
The user interface assembly has a 203.2 mm (8 in) color LCD display with and integrated touchscreen
and a full physical keyboard. The user interface assembly also includes:
A USB-host interface connection with an integrated cover for sending output files to a USB storage
●
accessory
A fleet-compliant hardware integration pocket (HIP)
●
Status LEDs
●
Physical buttons
●
The user interface assembly communicates with the network electronics assembly using a USB interface
through the ICB assembly.
Table 1-2 User interface assembly components
Subassembly Subassembly
Control-panel assembly
Physical keyboard Keyboard interface board
Cables 24-pin FFC from control panel to keyboard interface board
6 Chapter 1 Theory of operation ENWW
2 Removal and replacement
Introduction
●
Removal and replacement strategy
●
Electrostatic discharge
●
Required tools
●
Types of screws
●
Service approach
●
Customer self repair (CSR) assemblies
●
Internal assemblies
●
NOTE: Your product might not appear exactly as the one shown in the photos in this chapter.
Although details such as the color of the external panels and covers might be different than your
product, the procedures in this chapter are appropriate for your product.
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Introduction
This chapter describes the removal and replacement of field-replaceable units (FRUs) only.
Replacing FRUs is generally the reverse of removal. Occasionally, notes and tips are included to
provide directions for difficult or critical replacement procedures.
HP does
Note the length, diameter, color, type, and location of each screw. Be sure to return each screw to its
original location during reassembly.
Incorrectly routed or loose wire harnesses can interfere with other internal components and can become
damaged or broken. Frayed or pinched harness wires can be difficult to find. When replacing wire
harnesses, always use the provided wire loops, lance points, or wire-harness guides and retainers.
not
support repairing individual subassemblies or troubleshooting to the component level.
8 Chapter 2 Removal and replacement ENWW
Removal and replacement strategy
WARNING! Turn the product off, wait 5 seconds, and then remove the power cord before
attempting to remove an assembly. If this warning is not followed, severe injury can result, in addition
to damage to the product. The power must be on for certain functional checks during troubleshooting.
However, disconnect the power supply during parts removal.
Never operate or service the product with the protective cover removed from the laser/scanner
assembly. The reflected beam, although invisible, can damage your eyes.
The sheet-metal parts can have sharp edges. Be careful when handling sheet-metal parts.
CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation. Also, do
must
not straighten pre-folds in the FFCs. You
an FFC into a connector can cause a short circuit in a PCA.
NOTE: To install a self-tapping screw, first turn it counterclockwise to align it with the existing thread
pattern, and then carefully turn it clockwise to tighten. Do not overtighten. If a self-tapping screw-hole
becomes stripped, repair the screw-hole or replace the affected assembly.
TIP: For clarity, some photos in this chapter show components removed that would not be removed to
service the product. If necessary, remove the components listed at the beginning of a procedure before
proceeding to service the product.
fully seat all FFCs in their connectors. Failure to fully seat
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Removal and replacement strategy
9
Electrostatic discharge
CAUTION: Some parts are sensitive to electrostatic discharge (ESD). Look for the ESD reminder
when removing product parts. Always perform service work at an ESD-protected workstation or mat, or
use an ESD strap. If an ESD workstation, mat, or strap is not available, ground yourself by touching the
before
sheet-metal chassis
Protect the ESD-sensitive parts by placing them in ESD pouches when they are out of the product.
touching an ESD-sensitive part.
10 Chapter 2 Removal and replacement ENWW
Required tools
Torx screwdrivers, size 10, 15, and 20
●
Small flat blade screwdriver
●
Needle-nose pliers
●
ESD mat or ESD strap (if one is available)
●
Penlight (optional)
●
USB thumbdrive
●
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Required tools
11
Types of screws
This table describes the screws that are used in the product and provides guidelines to help determine
where each type of screw is used. The screws can vary in length depending on the thickness of the
material that is being fastened.
Always note where each type of screw is located and replace each one in its original location.
WARNING! Make sure that components are replaced with the correct screw type. Using the
incorrect screw (for example, substituting a long screw for the correct shorter screw) can cause damage
to the product or interfere with product operation. Do not intermix screws that are removed with one
component with the screws that are removed from another component.
TIP: When you are disassembling the product, place the screws into the chassis holes from which
they were removed. This prevents their loss, and ensures that the proper type and length of screw for
each location is used when the product is reassembled.
Table 2-1 Common fasteners used in this product
Screw type
Silver Torx head 4 x 10 mm screw with cone washer
This screw type is shown in the following figure:
Figure 2-31 Remove the flatbed scanner and ADF assembly (1 of 7) on page 39
●
12 Chapter 2 Removal and replacement ENWW
Table 2-1 Common fasteners used in this product (continued)
Screw type
Silver Torx head 3 x 8 mm screw with spring washer
This screw type is shown in the following figures:
Figure 2-61 Remove the interconnect PCA on page 56
●
Figure 2-65 Remove the DC controller PCA on page 58
●
Torx head 4 x 34 mm screw
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This screw type is shown in the following figure:
Figure 2-63 Remove the fan assembly (2 of 3) on page 57
●
Torx head 3 x 10 mm screw
This screw type is shown in the following figures:
Figure 2-32 Remove the flatbed scanner and ADF assembly (2 of 7) on page 40
●
Figure 2-38 Remove the power-button assembly (1 of 3) on page 44
●
Types of screws
13
Table 2-1 Common fasteners used in this product (continued)
12 mm
Screw type
Torx head 3 x 7.25 mm screw
This screw type is shown in the following figures:
Figure 2-35 Remove the flatbed scanner and ADF assembly (5 of 7) on page 41
●
Figure 2-41 Remove the scanner cable, control-panel cable, and interconnect cable (1 of 4) on page 46
●
Figure 2-58 Remove the interconnect PCA, fan assembly, and DC connector PCA (4 of 6) on page 55
●
12 mm
Screw measurement guide
14 Chapter 2 Removal and replacement ENWW
Service approach
Before performing service
Turn off the power using the power switch.
●
Unplug the power cable and network cable.
●
Place the product on an ESD workstation or mat, or use an ESD strap (if one is available). If an
●
ESD workstation, mat, or strap is not available, ground yourself by touching the sheet-metal
chassis
NOTE: Some procedures require that you backup product data prior to replacing the assembly.
Backup product data
To ensure that customer-specific configuration information and data are preserved, back up the product
data to a portable USB storage device prior to removing these assemblies. Restore the data after
replacing the assembly.
NOTE: You can also backup product data using the HP Embedded Web Server (EWS). The EWS
backs up product data to a customer specified network folder instead of the products hard drive. See
the product user guide for information.
before
touching an ESD-sensitive part.
1. From the Home screen on the product control panel, touch the Device Maintenance button.
2. Open the following menus:
Backup/Restore
●
Backup Data
●
Backup Now
●
NOTE: Backups are stored on the hard disk drive, including regularly scheduled backups. You
can export backups to a USB storage device from the hard disk drive.
3. Insert the portable USB storage device.
4. Touch Export Last Backup
5. Enter the password and confirm the password. Touch OK.
After performing service
Connect the network cable, and then plug in the power cable.
●
NOTE: Some procedures require that you perform a restore step after to replacing the assembly.
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Service approach
15
Restore product data
To ensure that customer-specific configuration information and data are preserved, back up the product
data to a portable USB storage device prior to removing these assemblies. Restore the data after
replacing the assembly.
NOTE: You can also restore product data using the Embedded Web Server (EWS). See the product
user guide for information.
1. From the Home screen on the product control panel, touch the Device Maintenance button.
2. Open the following menus:
Backup/Restore
●
Restore Data
●
3. Insert the portable USB storage device.
4. Select the backup file, and then touch Restore.
5. Touch Restore.
Save and repair process
The save and repair process occurs automatically whenever the formatter PCA, interconnect PCA, or
encrypted hard disk drive (HDD) are replaced. This process is transparent to the user.
CAUTION: Replacing the formatter PCA and interconnect PCA at the same time or swapping these
assemblies between products can render the product unusable.
Formatter PCA: When a replacement formatter PCA is installed and the product is turned on,
●
NVRAM values from the interconnect PCA are transferred automatically to the replacement
formatter PCA. This process allows the product to return to normal operation with all of the
necessary product history.
Interconnect PCA: When a replacement interconnect PCA is installed, NVRAM values from the
●
formatter PCA are transferred automatically to the replacement interconnect PCA. This process
allows the product to return to normal operation with all of the necessary product history.
Hard disk drive (HDD): When a replacement hard disk drive is installed and product is turned on,
●
the replacement hard disk drive is locked to the formatter PCA of the product. The encryption key
is placed in the NVRAM of the formatter PCA and copied to the NVRAM of the interconnect PCA.
This allows the backed up NVRAM values from the interconnect PCA to be restored to a
replacement formatter PCA when either the formatter PCA or interconnect PCA are replaced. This
process also allows the hard disk drive to function when it is transferred from a defective formatter
PCA to a replacement formatter PCA. The hard disk drive cannot be used in another product or
accessed from outside the product.
Post-service test
Perform the following test to verify that the repair or replacement was successful.
16 Chapter 2 Removal and replacement ENWW
Quality test
1. Verify that you have completed the necessary reassembly steps.
2. Verify that the power cord and network cable are correctly connected, and then turn on the
3. Verify that the control panel shows the product in Ready mode.
4. Perform the scanning features of the product to ensure the product is functioning correctly. See the
5. If necessary, restore any customer-specified settings.
6. Clean the outside of the product with a damp cloth.
product.
product user guide for information.
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Service approach
17
Customer self repair (CSR) assemblies
ADF rollers
NOTE: Always replace the separation pad when replacing the ADF rollers. The ADF rollers and
separation pad are included in the ADF roller replacement kit.
The ADF roller replacement kit is a consumable and is not covered under warranty or standard service
agreements.
NOTE: HP recommends that you replace the rollers every 100,000 scans.
Remove the ADF rollers:
CAUTION: Do not touch the rollers. Oils from your fingers can impact performance.
NOTE: If the product is on and you open and close the ADF hatch, the attention message If
document feeder roller cleanup is complete, clear message displays. Touch Cancel to clear
the message.
1. Open the automatic document feeder (ADF) hatch.
Figure 2-1 Remove the ADF rollers (1 of 1)
18 Chapter 2 Removal and replacement ENWW
2. Slide your fingertip behind the tab on the roller assembly door, and then pull gently forward and
down to open the door.
TIP: Lift the ADF input tray slightly to make it easier to reach the tab.
Figure 2-2 Remove the ADF rollers (1 of 2)
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Customer self repair (CSR) assemblies
19
3. Holding the roller assembly door down and out of the way, grasp the roller assembly and slide it
to the left to release it from the enclosure.
NOTE: You might feel a slight resistance when sliding the roller assembly.
CAUTION: Take care not to press down on the alignment tabs or against the tab to the right of
the roller assembly.
Figure 2-3 Remove the ADF rollers (1 of 3)
4. Remove the roller assembly.
Figure 2-4 Remove the ADF rollers (1 of 4)
20 Chapter 2 Removal and replacement ENWW
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