HP M701, M706 Owner's Manual

LaserJet Pro M701/M706

Repair Manual

LaserJet Pro M706n

www.hp.com/support/ljM701 www.hp.com/support/ljM706

HP LaserJet Pro M701/M706

Repair Manual

Trademark Credits

, Acrobat®, and PostScript® are

Adobe trademarks of Adobe Systems Incorporated.

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.

Edition 1, 02/2014

Part number: B6S00-90903

Microsoft®, Windows®, Windows® XP, and Windows Vista® are U.S. registered trademarks of Microsoft Corporation.

ENERGY STAR and the ENERGY STAR mark are registered U.S. marks.

Conventions used in this guide

TIP: Tips provide helpful hints or shortcuts.

NOTE: Notes provide important information to explain a concept or to complete a task.

CAUTION: Cautions indicate procedures that you should follow to avoid losing data or damaging the

product.

WARNING! Warnings alert you to specific procedures that you should follow to avoid personal injury,

catastrophic loss of data, or extensive damage to the product.

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iv Conventions used in this guide ENWW

Table of contents

1 Removal and replacement .............................................................................................................................. 1

Removal and replacement strategy ...................................................................................................................... 2

Introduction ......................................................................................................................................... 2

Required tools ..................................................................................................................................... 2

Types of screws ................................................................................................................................... 3

Service approach ................................................................................................................................. 3

Before performing service .................................................................................................................. 3

After performing service ..................................................................................................................... 4

Parts removal order ............................................................................................................................ 5

Customer self-repair parts .................................................................................................................................... 6

Tray 1 roller kit .................................................................................................................................... 6

Tray 2 roller kit .................................................................................................................................. 10

Tray 3 roller kit .................................................................................................................................. 13

External doors, covers, and panels ..................................................................................................................... 16

Right cover assembly ........................................................................................................................ 16

Lower back cover .............................................................................................................................. 17

Rear-cover assembly ........................................................................................................................ 17

Top cover ........................................................................................................................................... 19

Left cover ........................................................................................................................................... 21

Face-down cover ............................................................................................................................... 22

Tray 2 ................................................................................................................................................. 22

Tray 3 ................................................................................................................................................. 23

Right front cover ............................................................................................................................... 24

Right cassette cover .......................................................................................................................... 25

Right handle cover ............................................................................................................................ 25

Multi-purpose tray cover assembly .................................................................................................. 27

Cartridge door assembly ................................................................................................................... 29

Control panel ..................................................................................................................................... 36

Internal assemblies ............................................................................................................................................. 40

Transfer roller ................................................................................................................................... 40

Laser/scanner .................................................................................................................................... 40

Fuser .................................................................................................................................................. 43

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Fuser motor ....................................................................................................................................... 43

Right fan ............................................................................................................................................ 44

Left fan .............................................................................................................................................. 46

Registration unit ............................................................................................................................... 48

Paper-feed assembly ........................................................................................................................ 50

Printed circuit assemblies (PCAs) ........................................................................................................................ 52

DC controller PCA .............................................................................................................................. 52

Formatter PCA ................................................................................................................................... 54

Formatter stay .................................................................................................................................. 55

High-voltage power supply ............................................................................................................... 56

Low-voltage power supply PCA ........................................................................................................ 63

Duplexer ............................................................................................................................................................... 68

Duplexer ............................................................................................................................................ 68

Duplexer left cover ............................................................................................................................ 68

Duplexer right cover .......................................................................................................................... 69

Duplexer top cover ............................................................................................................................ 70

Duplexer rear cover ........................................................................................................................... 71

Duplex drive assembly ...................................................................................................................... 72

Duplexer driver PCA .......................................................................................................................... 80

Duplexer fan ...................................................................................................................................... 81

Registration sensor photoreceiver assembly .................................................................................. 84

Registration sensor LED assembly ................................................................................................... 89

500-sheet feeder ................................................................................................................................................. 96

500-sheet feeder front cover ........................................................................................................... 96

500-sheet feeder left cover .............................................................................................................. 97

500-sheet feeder right cover ............................................................................................................ 97

500-sheet feeder cassette cover ...................................................................................................... 98

500-sheet feeder paper-pickup unit ................................................................................................ 99

500-sheet feeder lifter drive unit ................................................................................................... 100

500-sheet feeder drive unit ............................................................................................................ 101

500-sheet feeder drive PCA ............................................................................................................ 105

500-sheet feeder pickup motor ..................................................................................................... 106

2 Parts and diagrams .................................................................................................................................... 109

Order parts by authorized service providers .................................................................................................... 109

Service kit parts .............................................................................................................................. 109

Whole-unit replacement part numbers .......................................................................................... 110

Supplies and accessories part numbers ......................................................................................... 111

Related documentation and software ............................................................................................ 111

How to use the parts lists and diagrams .......................................................................................................... 112

Fasteners used in this product .......................................................................................................................... 113

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Assembly locations ........................................................................................................................................... 114

Covers ................................................................................................................................................................ 116

Internal components ......................................................................................................................................... 118

PCAs ................................................................................................................................................................... 124

500-sheet feeder, cassette, external panels, and covers ................................................................................ 126

500-sheet feeder internal components ........................................................................................................... 128

Duplexer external covers .................................................................................................................................. 130

Duplexing main body ......................................................................................................................................... 132

Alphabetical parts list ....................................................................................................................................... 136

Numerical parts list ........................................................................................................................................... 140

Index ........................................................................................................................................................... 145

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viii ENWW

List of tables

Table 2-1 Order parts, accessories, and supplies ............................................................................................................ 109

Table 2-2 Repair kits ........................................................................................................................................................ 109

Table 2-3 Whole-unit replacement part numbers ........................................................................................................... 110

Table 2-4 Related documentation and software ............................................................................................................. 111

Table 2-5 External panels and covers .............................................................................................................................. 117

Table 2-6 Internal components (1 of 3) ........................................................................................................................... 119

Table 2-7 Internal components (2 of 3) ........................................................................................................................... 121

Table 2-8 Internal components (3 of 3) ........................................................................................................................... 123

Table 2-9 PCA assembly ................................................................................................................................................... 125

Table 2-10 500-sheet feeder, cassette, external panels, and covers ............................................................................ 127

Table 2-11 500-sheet feeder internal components ........................................................................................................ 129

Table 2-12 Duplexer external covers ............................................................................................................................... 131

Table 2-13 Duplexing main body (1 of 2) ......................................................................................................................... 133

Table 2-14 Duplexing main body (2 of 2) ......................................................................................................................... 135

Table 2-15 Alphabetical parts list .................................................................................................................................... 136

Table 2-16 Numerical parts list ........................................................................................................................................ 140

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List of figures

Figure 1-1 Screwdrivers ........................................................................................................................................................ 2

Figure 1-2 Parts removal order ............................................................................................................................................ 5

Figure 1-3 Remove the Tray 1 pickup roller (1 of 3) ............................................................................................................ 6

Figure 1-4 Remove the Tray 1 pickup roller (2 of 3) ............................................................................................................ 7

Figure 1-5 Remove the Tray 1 pickup roller (3 of 3) ............................................................................................................ 7

Figure 1-6 Remove the Tray 1 separation pad (1 of 4) ........................................................................................................ 8

Figure 1-7 Remove the Tray 1 separation pad (2 of 4) ........................................................................................................ 8

Figure 1-8 Remove the Tray 1 separation pad (3 of 4) ........................................................................................................ 9

Figure 1-9 Remove the Tray 1 separation pad (4 of 4) ........................................................................................................ 9

Figure 1-10 Remove the Tray 2 pickup roller (1 of 3) ........................................................................................................ 10

Figure 1-11 Remove the Tray 2 pickup roller (2 of 3) ........................................................................................................ 10

Figure 1-12 Remove the Tray 2 pickup roller (3 of 3) ........................................................................................................ 11

Figure 1-13 Remove the Tray 2 separation pad (1 of 4) .................................................................................................... 11

Figure 1-14 Remove the Tray 2 separation pad (2 of 4) .................................................................................................... 12

Figure 1-15 Remove the Tray 2 separation pad (3 of 4) .................................................................................................... 12

Figure 1-16 Remove the Tray 2 separation pad (4 of 4) .................................................................................................... 13

Figure 1-17 Remove the Tray 3 feed roller 1 (1 of 5) ........................................................................................................ 13

Figure 1-18 Remove the Tray 3 feed roller 1 (2 of 5) ........................................................................................................ 14

Figure 1-19 Remove the Tray 3 feed roller 1 (3 of 5) ........................................................................................................ 14

Figure 1-20 Remove the Tray 3 feed roller 2 (4 of 5) ........................................................................................................ 15

Figure 1-21 Remove the Tray 3 feed roller 2 (5 of 5) ........................................................................................................ 15

Figure 1-22 Remove the right cover (1 of 2) ...................................................................................................................... 16

Figure 1-23 Remove the right cover (2 of 2) ...................................................................................................................... 16

Figure 1-24 Remove the lower back cover ........................................................................................................................ 17

Figure 1-25 Remove the rear-cover assembly (1 of 2) ...................................................................................................... 18

Figure 1-26 Remove the rear-cover assembly (2 of 2) ...................................................................................................... 18

Figure 1-27 Remove the top cover (1 of 2) ........................................................................................................................ 19

Figure 1-28 Remove the top cover (2 of 2) ........................................................................................................................ 20

Figure 1-29 Remove the left cover (1 of 2) ........................................................................................................................ 21

Figure 1-30 Remove the left cover–tab locations (2 of 2) ................................................................................................ 21

Figure 1-31 Remove the face-down cover ......................................................................................................................... 22

Figure 1-32 Remove Tray 2 ................................................................................................................................................ 22

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Figure 1-33 Remove Tray 3 ................................................................................................................................................ 23

Figure 1-34 Remove the right front cover ......................................................................................................................... 24

Figure 1-35 Remove the right casette cover ..................................................................................................................... 25

Figure 1-36 Remove the right handle cover (1 of 2) .......................................................................................................... 26

Figure 1-37 Remove the right handle cover (2 of 2) .......................................................................................................... 26

Figure 1-38 Remove the multi-purpose cover (1 of 5) ...................................................................................................... 27

Figure 1-39 Remove the multi-purpose cover (2 of 5) ...................................................................................................... 27

Figure 1-40 Remove the multi-purpose cover (3 of 5) ...................................................................................................... 28

Figure 1-41 Remove the multi-purpose cover (4 of 5) ...................................................................................................... 28

Figure 1-42 Remove the multi-purpose cover (5 of 5) ...................................................................................................... 29

Figure 1-43 Remove the cartridge door unit (1 of 13) ....................................................................................................... 29

Figure 1-44 Remove the cartridge door unit (2 of 13) ....................................................................................................... 30

Figure 1-45 Remove the cartridge door unit (3 of 13) ....................................................................................................... 30

Figure 1-46 Remove the cartridge door unit (4 of 13) ....................................................................................................... 31

Figure 1-47 Remove the cartridge door unit (5 of 13) ....................................................................................................... 31

Figure 1-48 Remove the cartridge door unit (6 of 13) ....................................................................................................... 32

Figure 1-49 Remove the cartridge door unit (7 of 13) ....................................................................................................... 32

Figure 1-50 Remove the cartridge door unit (8 of 13) ....................................................................................................... 33

Figure 1-51 Remove the cartridge door unit (9 of 13) ....................................................................................................... 33

Figure 1-52 Remove the cartridge door unit (10 of 13) ..................................................................................................... 34

Figure 1-53 Remove the cartridge door unit (11 of 13) ..................................................................................................... 34

Figure 1-54 Remove the cartridge door unit (12 of 13) ..................................................................................................... 35

Figure 1-55 Remove the cartridge door unit (13 of 13) ..................................................................................................... 35

Figure 1-56 Remove the control panel (1 of 3) .................................................................................................................. 36

Figure 1-57 Remove the control panel (2 of 3) .................................................................................................................. 36

Figure 1-58 Remove the control panel (3 of 3) .................................................................................................................. 37

Figure 1-59 Correct orientation of control-panel grounding spring ................................................................................. 37

Figure 1-60 Incorrect orientation of control-panel grounding spring .............................................................................. 38

Figure 1-61 Control-panel electrical continuity check points ........................................................................................... 39

Figure 1-62 Control-panel contact point ........................................................................................................................... 39

Figure 1-63 Remove the transfer roller ............................................................................................................................. 40

Figure 1-64 Remove the laser/scanner (1 of 3) ................................................................................................................. 41

Figure 1-65 Remove the laser/scanner (2 of 3) ................................................................................................................. 41

Figure 1-66 Remove the laser/scanner (3 of 3) ................................................................................................................. 42

Figure 1-67 Remove the fuser ............................................................................................................................................ 43

Figure 1-68 Remove the fuser motor ................................................................................................................................ 44

Figure 1-69 Remove the right fan (1 of 3) ......................................................................................................................... 44

Figure 1-70 Remove the right fan (2 of 3) ......................................................................................................................... 45

Figure 1-71 Remove the right fan (3 of 3) ......................................................................................................................... 45

Figure 1-72 Remove the left fan (1 of 5) ............................................................................................................................ 46

Figure 1-73 Remove the left fan (2 of 5) ............................................................................................................................ 47

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Figure 1-74 Remove the left fan (3 of 5) ............................................................................................................................ 47

Figure 1-75 Remove the left fan (4 of 5) ............................................................................................................................ 48

Figure 1-76 Remove the left fan (5 of 5) ............................................................................................................................ 48

Figure 1-77 Remove the registration unit (1 of 2) ............................................................................................................. 49

Figure 1-78 Remove the registration unit (2 of 2) ............................................................................................................. 49

Figure 1-79 Remove the paper-feed unit (1 of 3) .............................................................................................................. 50

Figure 1-80 Remove the paper-feed unit (2 of 3) .............................................................................................................. 51

Figure 1-81 Remove the paper-feed unit (3 of 3) .............................................................................................................. 51

Figure 1-82 Remove the DC controller (1 of 4) .................................................................................................................. 52

Figure 1-83 Remove the DC controller (2 of 4) .................................................................................................................. 53

Figure 1-84 Remove the DC controller (3 of 4) .................................................................................................................. 53

Figure 1-85 Remove the DC controller (4 of 4) .................................................................................................................. 54

Figure 1-86 Remove the formatter PCA ............................................................................................................................. 54

Figure 1-87 Remove the formatter stay ............................................................................................................................ 55

Figure 1-88 Remove the high-voltage power supply (1 of 14) ......................................................................................... 56

Figure 1-89 Remove the high-voltage power supply (2 of 14) ......................................................................................... 57

Figure 1-90 Remove the high-voltage power supply (3 of 14) ......................................................................................... 57

Figure 1-91 Remove the high-voltage power supply (4 of 14) ......................................................................................... 58

Figure 1-92 Remove the high-voltage power supply (5 of 14) ......................................................................................... 58

Figure 1-93 Remove the high-voltage power supply (6 of 14) ......................................................................................... 59

Figure 1-94 Remove the high-voltage power supply (7 of 14) ......................................................................................... 59

Figure 1-95 Remove the high-voltage power supply (8 of 14) ......................................................................................... 60

Figure 1-96 Remove the high-voltage power supply (9 of 14) ......................................................................................... 60

Figure 1-97 Remove the high-voltage power supply (10 of 14) ....................................................................................... 61

Figure 1-98 Remove the high-voltage power supply (11 of 14) ....................................................................................... 61

Figure 1-99 Remove the high-voltage power supply (12 of 14) ....................................................................................... 62

Figure 1-100 Remove the high-voltage power supply (13 of 14) ..................................................................................... 62

Figure 1-101 Remove the high-voltage power supply (14 of 14) ..................................................................................... 63

Figure 1-102 Remove the low-voltage power supply PCA (1 of 7) ................................................................................... 64

Figure 1-103 Remove the low-voltage power supply PCA (2 of 7) ................................................................................... 64

Figure 1-104 Remove the low-voltage power supply PCA (3 of 7) ................................................................................... 65

Figure 1-105 Remove the low-voltage power supply PCA (4 of 7) ................................................................................... 65

Figure 1-106 Remove the low-voltage power supply PCA (5 of 7) ................................................................................... 66

Figure 1-107 Remove the low-voltage power supply PCA (6 of 7) ................................................................................... 66

Figure 1-108 Remove the low-voltage power supply PCA (7 of 7) ................................................................................... 67

Figure 1-109 Remove the duplexer ................................................................................................................................... 68

Figure 1-110 Remove the duplexer left cover (1 of 2) ...................................................................................................... 68

Figure 1-111 Remove the duplexer left cover (2 of 2) ...................................................................................................... 69

Figure 1-112 Remove the duplexer right cover (1 of 2) .................................................................................................... 69

Figure 1-113 Remove the duplexer right cover (2 of 2) .................................................................................................... 70

Figure 1-114 Remove the duplexer top cover (1 of 3) ....................................................................................................... 70

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Figure 1-115 Remove the duplexer top cover (2 of 3) ....................................................................................................... 71

Figure 1-116 Remove the duplexer top cover (3 of 3) ....................................................................................................... 71

Figure 1-117 Remove the duplexer rear cover .................................................................................................................. 72

Figure 1-118 Remove the duplex drive assembly (1 of 17) .............................................................................................. 72

Figure 1-119 Remove the duplex drive assembly (2 of 17) .............................................................................................. 73

Figure 1-120 Remove the duplex drive assembly (3 of 17) .............................................................................................. 73

Figure 1-121 Remove the duplex drive assembly (4 of 17) .............................................................................................. 74

Figure 1-122 Remove the duplex drive assembly (5 of 17) .............................................................................................. 74

Figure 1-123 Remove the duplex drive assembly (6 of 17) .............................................................................................. 75

Figure 1-124 Remove the duplex drive assembly (7 of 17) .............................................................................................. 75

Figure 1-125 Remove the duplex drive assembly (8 of 17) .............................................................................................. 76

Figure 1-126 Remove the duplex drive assembly (9 of 17) .............................................................................................. 76

Figure 1-127 Remove the duplex drive assembly (10 of 17) ............................................................................................ 77

Figure 1-128 Remove the duplex drive assembly (11 of 17) ............................................................................................ 77

Figure 1-129 Remove the duplex drive assembly (12 of 17) ............................................................................................ 78

Figure 1-130 Remove the duplex drive assembly (13 of 17) ............................................................................................ 78

Figure 1-131 Remove the duplex drive assembly (14 of 17) ............................................................................................ 79

Figure 1-132 Remove the duplex drive assembly (15 of 17) ............................................................................................ 79

Figure 1-133 Remove the duplex drive assembly (16 of 17) ............................................................................................ 80

Figure 1-134 Remove the duplex drive assembly (17 of 17) ............................................................................................ 80

Figure 1-135 Remove the duplexer driver PCA (1 of 2) ..................................................................................................... 81

Figure 1-136 Remove the duplexer driver PCA (2 of 2) ..................................................................................................... 81

Figure 1-137 Remove the duplexer fan (1 of 4) ................................................................................................................. 82

Figure 1-138 Remove the duplexer fan (2 of 4) ................................................................................................................. 82

Figure 1-139 Remove the duplexer fan (3 of 4) ................................................................................................................. 83

Figure 1-140 Remove the duplexer fan (4 of 4) ................................................................................................................. 83

Figure 1-141 Remove the registration sensor photoreceiver assembly (1 of 9) .............................................................. 84

Figure 1-142 Remove the registration sensor photoreceiver assembly (2 of 9) .............................................................. 84

Figure 1-143 Remove the registration sensor photoreceiver assembly (3 of 9) .............................................................. 85

Figure 1-144 Remove the duplex drive assembly (4 of 9) ................................................................................................. 86

Figure 1-145 Remove the duplex drive assembly (5 of 9) ................................................................................................. 86

Figure 1-146 Remove the registration sensor photoreceiver assembly (6 of 9) .............................................................. 87

Figure 1-147 Remove the registration sensor photoreceiver assembly (7 of 9) .............................................................. 87

Figure 1-148 Remove the registration sensor photoreceiver assembly (8 of 9) .............................................................. 88

Figure 1-149 Remove the registration sensor photoreceiver assembly (9 of 9) .............................................................. 88

Figure 1-150 Remove the registration sensor LED assembly (1 of 12) ............................................................

Figure 1-151 Remove the registration sensor LED assembly (2 of 12) ............................................................................ 89

Figure 1-152 Remove the registration sensor LED assembly (3 of 12) ............................................................................ 90

Figure 1-153 Remove the duplex drive assembly (4 of 12) .............................................................................................. 91

Figure 1-154 Remove the duplex drive assembly (5 of 12) .............................................................................................. 91

Figure 1-155 Remove the registration sensor LED assembly (6 of 12) ............................................................................ 92

................ 89

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Figure 1-156 Remove the registration sensor LED assembly (7 of 12) ............................................................................ 92

Figure 1-157 Remove the registration sensor LED assembly (8 of 12) ............................................................................ 93

Figure 1-158 Remove the registration sensor LED assembly (9 of 12) ............................................................................ 93

Figure 1-159 Remove the registration sensor LED assembly (10 of 12) .......................................................................... 94

Figure 1-160 Remove the registration sensor LED assembly (11 of 12) .......................................................................... 94

Figure 1-161 Remove the registration sensor LED assembly (12 of 12) .......................................................................... 95

Figure 1-162 Remove the 500-sheet feeder front cover (1 of 2) ...................................................................................... 96

Figure 1-163 Remove the 500-sheet feeder front cover (2 of 2) ...................................................................................... 96

Figure 1-164 Remove the 500-sheet feeder left cover ..................................................................................................... 97

Figure 1-165 Remove the 500-sheet feeder right cover ................................................................................................... 98

Figure 1-166 Remove the 500-sheet feeder cassette cover ............................................................................................ 98

Figure 1-167 Remove the 500-sheet feeder paper-pickup unit (1 of 4) ........................................................................... 99

Figure 1-168 Remove the 500-sheet feeder paper-pickup unit (2 of 4) ........................................................................... 99

Figure 1-169 Remove the 500-sheet feeder paper-pickup unit (3 of 4) ........................................................................ 100

Figure 1-170 Remove the 500-sheet feeder paper-pickup unit (4 of 4) ........................................................................ 100

Figure 1-171 Remove the 500-sheet feeder lifter drive unit (1 of 2) ............................................................................. 101

Figure 1-172 Remove the 500-sheet feeder lifter drive unit (2 of 2) ............................................................................. 101

Figure 1-173 Remove the 500-sheet feeder drive unit (1 of 7) ...................................................................................... 102

Figure 1-174 Remove the 500-sheet feeder drive unit (2 of 7) ...................................................................................... 102

Figure 1-175 Remove the 500-sheet feeder drive unit (3 of 7) ...................................................................................... 103

Figure 1-176 Remove the 500-sheet feeder drive unit (4 of 7) ...................................................................................... 103

Figure 1-177 Remove the 500-sheet feeder drive unit (5 of 7) ...................................................................................... 104

Figure 1-178 Remove the 500-sheet feeder drive unit (6 of 7) ...................................................................................... 104

Figure 1-179 Remove the 500-sheet feeder drive unit (7 of 7) ...................................................................................... 105

Figure 1-180 Remove the 500-sheet feeder drive PCA ................................................................................................... 105

Figure 1-181 Remove the 500-sheet feeder pickup motor (1 of 3) ................................................................................ 106

Figure 1-182 Remove the 500-sheet feeder pickup motor (2 of 3) ................................................................................ 106

Figure 1-183 Remove the 500-sheet feeder pickup motor (3 of 3) ................................................................................ 107

Figure 2-1 External assembly locations .......................................................................................................................... 114

Figure 2-2 External panels and covers ............................................................................................................................ 116

Figure 2-3 Internal components (1 of 3) .......................................................................................................................... 118

Figure 2-4 Internal components (2 of 3) .......................................................................................................................... 120

Figure 2-5 Internal components (3 of 3) .......................................................................................................................... 122

Figure 2-6 PCA assembly .................................................................................................................................................. 124

Figure 2-7 500-sheet feeder, cassette, external panels, and covers ............................................................................. 126

Figure 2-8 500-sheet feeder internal components ......................................................................................................... 128

Figure 2-9 Duplexer external covers ............................................................................................................................... 130

Figure 2-10 Duplexing main body (1 of 2) ....................................................................................................................... 132

Figure 2-11 Duplexing main body (2 of 2) ....................................................................................................................... 134

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1 Removal and replacement

●

Removal and replacement strategy

●

Customer self-repair parts

●

External doors, covers, and panels

●

Internal assemblies

●

Printed circuit assemblies (PCAs)

●

Duplexer

●

500-sheet feeder

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Removal and replacement strategy

Introduction

This chapter describes the removal and replacement of field-replaceable units (FRUs) only.

Replacing FRUs is generally the reverse of removal. Notes are included to provide directions for difficult or critical replacement procedures.

HP does not support repairing individual subassemblies or troubleshooting to the component level.

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: 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. If an ESD workstation or mat is not available, ground yourself by touching the sheet-metal chassis before touching an ESD-sensitive part.

Protect the ESD-sensitive parts by placing them in ESD pouches when they are out of the product.

CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation.

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.

Required tools

●

#2 Phillips screwdriver with a magnetic tip and a 152 mm (6 inch) shaft length

●

Small flatblade screwdriver

●

T-10 Torx screw driver

●

Needle-nose pliers

●

ESD strap (if one is available)

●

Penlight

CAUTION: Always use a Phillips screwdriver (callout 1). Do not use a Pozidriv® screwdriver (callout 2) or any

motorized screwdriver. These can damage screws or screw threads.

Figure 1-1 Screwdrivers

2 Chapter 1 Removal and replacement ENWW

CAUTION: Do not pull directly on the wires to disconnect them. Always pull on the plastic body of a

connector to avoid damaging the connector wires.

Types of screws

WARNING! Make sure that components are replaced with the correct screw type. Using an 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 from one component with the screws that are removed from another component.

For a complete list of screw types and part numbers, see the Parts and diagrams on page 109 chapter.

Service approach

Printer repair normally begins by using the product internal diagnostics and the following two-step process:

1. Isolate the problem to the major system (for example, the network, server, or the product).

2. Troubleshoot the problem by using the procedures in the HP LaserJet Pro M701/M706 Troubleshooting

Manual.

After you locate a faulty part, the product can usually be repaired at the assembly level by replacing FRUs. Some mechanical assemblies might need to be repaired at the subassembly level. HP does not support replacement of components on the printed circuit assembles.

Before performing service

1. Turn the product off, wait 5 seconds, and then remove the power cord, network cable, and USB cable

before attempting to service the product.

CAUTION: If this warning is not followed, severe injury and damage to the device can result. The power

must be on for certain functional checks during troubleshooting. However, the power supply must be disconnected during parts removal.

2. Remove all media.

3. Place the product on an ESD mat (if available).

4. Remove the print cartridge.

ENWW Removal and replacement strategy 3

5. Remove Tray 2.

After performing service

●

Return all media to the trays.

●

Reinstall the print cartridge.

●

Reinstall Tray 2.

●

Reinstall and plug in the power cable, network cable, and USB cable, and then turn the product on.

4 Chapter 1 Removal and replacement ENWW

Parts removal order

Use the following diagram to determine which parts must be removed before removing other parts.

Figure 1-2 Parts removal order

Printer

Lower rear cover

MP tray cover Transfer roller Right cover assembly

Rear cover assembly

Fuser

Left cover

Fuser motor (also remove top cover assembly)

Top cover assembly (also remove rear and left cover assemblies)

Face down cover

Delivery assembly (also remove fuser) Laser scanner

Control panel

Right front cover Sub fan (also remove left cover)

L.V power supply (also remove transfer roller, rear cover ass'y, right handle cover, and FRMTR stay)

Main fan (also remove top cover assembly)

Cartridge door assembly (also remove left cover) Registration unit

Paper feed unit (also remove transfer roller and fuser)

H.V power supply (also remove fuser)

Formatter

Formatter stay (metal)

DC controller

Main motor (also remove right handle cover)

Right cassette cover or walk up USB cover(also remove Tray 2 cassette)

Right handle cover

Cassette pick up assembly (also remove cartridge door assembly)

Duplexer

Left cover Right cover

Top cover (also remove left cover)

Rear cover

Duplex drive assembly (motor included) Duplex driver (PCA)

Duplex fan

500 sheet feeder

Front cover

Right cover

Cassette cover PF cassette pickup assembly (also remove left cover)

Drive PCA (also remove left cover) PF cassette lifter drive assembly PF cassette pickup motor

Left cover

ENWW Removal and replacement strategy 5

Customer self-repair parts

The user replaces print cartridges as they are depleted. The HP LaserJet Pro M701/M706 Series Repair Manual explains when to replace these supplies and provides instructions about replacing them. Additional instructions on other user-replaceable parts are provided in this section.

The product tracks the amount of use on the customer-replaceable supplies by keeping a page count.

Swapping supplies between products might cause a misrepresentation of supply life values and is not recommended.

Tray 1 roller kit

1. Tray 1 pickup roller

a. Open the cartridge door, and then locate the Tray 1 pickup roller.

Figure 1-3 Remove the Tray 1 pickup roller (1 of 3)

6 Chapter 1 Removal and replacement ENWW

b. Push out the two black tabs.

Figure 1-4 Remove the Tray 1 pickup roller (2 of 3)

c. Remove the Tray 1 pickup roller.

Figure 1-5 Remove the Tray 1 pickup roller (3 of 3)

2. Tray 1 separation pad

ENWW Customer self-repair parts 7

a. Grasp the handles and then open the multi-purpose tray door.

Figure 1-6 Remove the Tray 1 separation pad (1 of 4)

b. Release two levers.

Figure 1-7 Remove the Tray 1 separation pad (2 of 4)

8 Chapter 1 Removal and replacement ENWW

c. Remove one screw.

Figure 1-8 Remove the Tray 1 separation pad (3 of 4)

d. Lift the input bin and hold it up with your hand, and then remove the Tray 1 separation pad

assembly.

Figure 1-9 Remove the Tray 1 separation pad (4 of 4)

ENWW Customer self-repair parts 9

Tray 2 roller kit

1. Tray 2 pickup roller

a. Remove Tray 2.

Figure 1-10 Remove the Tray 2 pickup roller (1 of 3)

b. From the front of the product, look up inside the product to identify the roller.

Figure 1-11 Remove the Tray 2 pickup roller (2 of 3)

10 Chapter 1 Removal and replacement ENWW

c. Squeeze the two blue tabs (callout 1) together, push to the left, and then pull the roller down to

remove it.

Figure 1-12 Remove the Tray 2 pickup roller (3 of 3)

Reinstallation tip Insert the left (white plastic) side of the Tray 2 pickup roller first, and then

insert the right (blue plastic) side.

2. Tray 2 separation pad

a. Remove Tray 2.

Figure 1-13 Remove the Tray 2 separation pad (1 of 4)

ENWW Customer self-repair parts 11

b. Locate the Tray 2 separation pad.

Figure 1-14 Remove the Tray 2 separation pad (2 of 4)

c. Remove two screws.

Figure 1-15 Remove the Tray 2 separation pad (3 of 4)

12 Chapter 1 Removal and replacement ENWW

+ 138 hidden pages

HP M701, M706 Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Removal and replacement

Removal and replacement strategy

Introduction

Required tools

Types of screws

Service approach

Before performing service

After performing service

Parts removal order

Customer self-repair parts

Tray 1 roller kit

Tray 2 roller kit