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HP LaserJet 3050/3052/3055 All-in-One
Service Manual
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<
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7 Parts and diagrams
● Ordering parts and supplies
● Accessories
● Diagrams
● HP LaserJet 3050 all-in-one scanner assembly
● HP LaserJet 3052/3055 all-in-one scanner assembly
● Printer (product base), HP LaserJet 3050/3052/3055 all-in-one
● Alphabetical parts list
● Numerical parts list
ENWW 281
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Ordering parts and supplies
Parts that wear
The parts on the product that wear are listed in Table 3-1 Life expectancies on page 38. Parts are
available directly from Hewlett-Packard at the following Website: www.hp.com/buy/parts.
Parts
Order replacement parts from the following Website: www.hp.com/buy/parts
World-wide customer support
Order documentation and software from the Websites listed in Table 7-1 Technical support Websites
and related documentation on page 282:
Table 7-1 Technical support Websites and related documentation
HP Connect Online
(for HP partners)
www.connect-online.hp.com
HP Customer Care Call Centers
Information for contacting HP call centers in specific countries/
regions
www.hp.com/support/callcenters
HP Online Technical Support
Software drivers, support documentation, and answers to
frequently asked questions
www.hp.com/support
HP Technical Training (North America)
Classes and schedules
www.compaq.com/training
Note: Select your country/region in the "select a country or
region" field at the upper-right corner of the page.
Parts
Parts information
www.hp.com/buy/parts
282 Chapter 7 Parts and diagrams ENWW
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Accessories
The following accessories are available for the HP LaserJet 3050/3052/3055 all-in-one.
Table 7-2 Accessories
Product name Description Part number
Print cartridge 2,000-page cartridge Q2612A
Toner cloth Ideal for wiping up toner spills 5090-3379
Scanner hinge tool Use this tool to keep the scanner assembly from falling
off of the printer when the entire assembly is being
removed.
5185-7441
Fax telephone cord 2-wire 3-meter (9.8-f00t) fax telephone cord 8121-0811
USB cable 2-meter (6.6-foot) USB cable 8121-0539
USB cable 0.6-meter (2-foot) USB cable 8121-0549
Power cord, 1.8-meter (6-foot) U.S./Canada 8120-8382
Power cord, 1.8-meter (6-foot) Europe 8121-0516
Power cord, 1.8-meter (6-foot) UK 8121-0517
Power cord, 1.8-meter (6-foot) Danish 8121-0518
Power cord, 1.8-meter (6-foot) Switzerland 8121-0519
Power cord, 1.8-meter (6-foot) South America 8121-0520
Power cord, 1.8-meter (6-foot) Israel 8121-0521
Fax dongle 2-wire to 4-wire adapter (U.S.) Q3093-80004
ENWW Accessories 283
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Documentation
Table 7-3 Documentation
Description Languages Part number
Service manual (this manual) English only Q6502-90901
Service and support training CD English only Q6502-60115
Getting started guides English only Q6502-90902
English, French, Spanish, Portuguese, Italian, German, Dutch Q6502-90903
English, Swedish, Norwegian, Finnish, Greek, Danish, Hebrew Q6502-90904
English, Russian, Estonia, Lithuanian, Latvian, Kazakh, Arabic Q6502-90905
English, Czech, Hungarian, Polish, Slovak Q6502-90906
English, Slovenian, Bulgarian, Croatian, Romanian, Turkish Q6502-90907
English, Chinese simplified, Chinese traditional, Thai, Indonesian,
Korean, Vietnamese
Q6502-90908
User guides (print on demand) English only Q6500-90929
Czech Q6500-90930
Dutch Q6500-90931
French Q6500-90932
German Q6500-90933
Hungarian Q6500-90934
Italian Q6500-90935
Korean Q6500-90936
Polish Q6500-90937
Russian Q6500-90938
Chinese simplified Q6500-90939
Spanish Q6500-90940
Swedish Q6500-90941
Chinese traditional Q6500-90942
Thai Q6500-90943
Turkish Q6500-90944
Portuguese Q6500-90945
284 Chapter 7 Parts and diagrams ENWW
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Common hardware
The product has three common fasteners. See Table 7-4
Common fasteners
on page 285 for a
description of these screw types.
Table 7-4 Common fasteners
Example Description Size Part Number Use
Screw, machine, truss
head
M3X6
M2X10
XA9-1495-000CN
XA9-1501-000CN?
Used to secure metal to
metal
Screw, w/washer M3X8
M3X6
M3X6
XA9-1420-000CN
XB2-7300-605CN
XB2-8300-609CN
Used to secure metal
components to metal
components (for
example, a ground wire
to the frame)
Screw, self-tapping BH3X6
M4X10
BH3X6
XB9-1503-000CN
XB4-5401-009CN
XB4-7300-609CN
Used to secure
anything to plastic
Screw, tapping,binding
head
M3X6 XB4-5300-609CN Used to secure
anything to plastic
Screw, D M3X6 XA9-1670-000CN Used to secure metal
components to metal
components (for
example, a ground wire
to the frame)
How to use the parts lists and diagrams
The figures in this chapter illustrate the major subassemblies in the product and their component parts.
A table (material list) follows each exploded assembly diagr am. Each table lists the reference designator,
the associated part number for the item, and a description of the part.
Parts that have no reference designator or part number are not field-replaceable units (FRUs) and
cannot be ordered.
While looking for a part number, pay careful attention to the voltage listed in the description column to
make sure that the part number selected is for the correct product mo del.
Replacing the printer engine assembly
This table describes the components that can be transferred from a failed printer engine assembly to
the replacement printer engine assembly. In addition to the components listed in this table, trays, CDROM drives, and power cords can also be reused.
ENWW Accessories 285
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Table 7-5 Replacing the printer engine assembly
HP LaserJet 3050 all-in-one HP LaserJet 3052/3055 all-in-one
Replacement print engine
● Q6504-67001; 110 V print engine (new)
Q6504-69001; 110 V print engine (exchange)
or
● Q6504-67002; 220 V print engine (new)
Q6504-69002; 220 V print engine (exchange)
Plus the following components
Replacement print engine
● Q6502-67001; 110 V print engine (new, HP LaserJet
3052 all-in-one)
Q6503-67001; 110 V print engine (new, HP LaserJet
3055 all-in-one)
Q6502-69001; 110 V print engine (exchange,
HP LaserJet 3052 all-in-one)
Q6503-69001; 110 V print engine (exchange,
HP LaserJet 3055 all-in-one)
or
● Q6502-67002; 220 V print engine (new, HP LaserJet
3052 all-in-one)
Q6503-67002; 220 V print engine (new, HP LaserJet
3055 all-in-one)
Q6502-69002; 220 V print engine (exchange,
HP LaserJet 3052 all-in-one)
Q6503-69002; 220 V print engine (exchange,
HP LaserJet 3055 all-in-one)
Plus the following components
The correct LIU
● Q2663-60001 US/WW LIU
2
or
● Q2687-60002 EMEA LIU
2
The correct LIU
3
● Q2663-60001 US/WW LIU
2
or
● Q2687-60002 EMEA LIU
2
Formatter components
● Q7844-60002; HP LaserJet 3050 all-in-one formatter
PCA
● I/O plate
1
● Safety shield
1
● LAN port plate
1
Formatter components
● Q7528-60001; HP LaserJet 3052 all-in-one formatter
PCA
or
● Q7529-60002; HP LaserJet 3055 all-in-one formatter
PCA
● I/O plate
1
● Safety shield
1
● Jack plate (HP LaserJet 3052 all-in-one only)
Link assembly and springs
● RM1-0896-000CN; Scanner link assembly, left
● RM1-0897-000CN; Scanner link assembly, right
● RU5-2885-000CN; Scanner spring, compression (qty 2)
Link assembly and springs
● Q6502-67903; Scanner link assembly, kit
286 Chapter 7 Parts and diagrams ENWW
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HP LaserJet 3050 all-in-one HP LaserJet 3052/3055 all-in-one
Scanner-top components
● Scanner base-frame assembly
● RL1-0376-000CN; Scanner sheet, grounding
● RK2-1214-000CN; Scanner flat, flexible cable
● RM1-3076-000CN; Scanner cover, left
● RM1-3077-000CN; Scanner cover, right
● RM1-3063-000CN; Scanner-frame assembly
● RC1-8416-000CN; Scanner top cover
● RK2-1209-000CN; Control-panel assembly
Scanner-top components
● Q6502-60117; ADF lid
● Q1636-40036; Hinge retainer clip (Solar lock)
● Q6502-60117 Scanner assembly
● 7121-8285; HP jewel, control panel
The correct control panel
● Q6502-60101; HP LaserJet 3052 all-in-one control panel
or
● Q65036-60101; HP LaserJet 3055 all-in-one control
panel
1
The metal I/O plate, safety shield, jack plate, and LAN port plate are not FRUs and cannot be ordered. These metal components
must be transferred from the failed printer engine assembly to the replacement assembly.
2
The EMEA LIU is used in Europe only. All other e use the U.S./WW LIU.countries/regions worldwid
3
The HP LaserJet 3052 all-in-one does not have fax capabilities and does not require a LIU.
Table 7-5 Replacing the printer engine assembly (continued)
ENWW Accessories 287
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Diagrams
Component locations, HP LaserJet 3050/3052/3055 all-in-one printer
(product base)
2
1
Figure 7-1 Major components
1 Fuser assembly
2 Paper-pickup assembly
288 Chapter 7 Parts and diagrams ENWW
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12
3 4 5 6
7
Figure 7-2 Solenoid, sensors, switches, and motor
1 Print-cartridge-door switch
2 Power switch/power supply
3 Paper-width sensor
4 Paper-delivery sensor
5 Top-of-page sensor
6 Solenoid
7 Motor
ENWW Diagrams 289
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1
2
Figure 7-3 PCBs
1 Engine controller unit (ECU)
2 Formatter
NOTE For the HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one, the LIU is attached to the
formatter. The HP LaserJet 3052 all-in-one does not have fax capabilities, and does not use an LIU.
290 Chapter 7 Parts and diagrams ENWW
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Main wiring
Formatter
HP LaserJet 3050
J2
Figure 7-4 Main wiring, HP LaserJet 3050 all-in-one scanner as sembly
ENWW Diagrams 291
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Page 25
J6
P11
P18
P6
P17
J5
Formatter
HP LaserJet 3050
Figure 7-5 Main wiring, HP LaserJet 3050 all-in-one printer (product base)
292 Chapter 7 Parts and diagrams ENWW
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Formatter
HP LaserJet 3052/3055
Scanner sub-assembly (SSA)
Flatbed
motor
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
LCD and key switch / LED PCA
Front panel
P2
777
7
888
8
999
9
101010
10
11
11
11
11
444
4
555
5
666
6
111
1
222
2
333
3
ADF
ADF motor
Paper
sensors
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
ADF cover
ADF detect
ADF paper 1
ADF paper 2
AC inverter
PCA
CCFL bulb
Scanner PCB
CCD sensor
(soldered to PCB)
J1J1J1J1J1
J2J2J2J2J2
FFC
cable
CCD scanner assembly
J1
J2
P3
J3
Figure 7-6 Main wiring, HP LaserJet 3052/3055 all-in-one scanner assembly
ENWW Diagrams 293
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J8
P15
P22
P10
P21
J7
NOTE: Connector P22 is on the
HP LaserJet 3055 all-in-one only.
J5
LAN interface
Formatter
HP LaserJet 3052/3055
Figure 7-7 Main wiring, HP LaserJet 3050/3052/3055 all-in-one printer (product base)
294 Chapter 7 Parts and diagrams ENWW
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Formatter PCA and LIU connectors
P6
P11
J5
P17
P18
P1
J1 J2
J6
Figure 7-8 Formatter connections, HP LaserJet 3050 all-in-one
Table 7-6 Formatter connections, HP LaserJet 3050 all-in-one
Name Connection
P1 ADF
J1 Control panel
J2 Scanner (CIS)
J6 USB
P18 LIU
P17 Engine solenoid
J5 Engine
P11 Engine power
P6 Speaker
ENWW Diagrams 295
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J3
P3
J1 J2
J5
J8
P21
J7
P15
P10
P22
NOTE: Connector P22 and its associated fax
circuitry is for the HP LaserJet 3055 all-in-one only.
Figure 7-9 Formatter connections, HP LaserJet 3052/3055 all-in-one
Table 7-7 Formatter connections, HP LaserJet 3052/3055 all-in-one
Name Connection
J1 Control panel
J2 Scanner (CCD)
J5 Local area network
J8 USB
J7 Engine
P22 LIU (HP LaserJet 3055 all-in-one only)
P15 Engine solenoid
P10 Speaker
J3 Flatbed motor
P3 ADF
296 Chapter 7 Parts and diagrams ENWW
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J1
J2
Figure 7-10 LIU connections, HP LaserJet 3050/3055 all-in-one
Table 7-8 LIU connections, HP LaserJet 3050/3055 all-in-one
Name Connection
J1 Formatter
J2 Fax ports
ENWW Diagrams 297
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HP LaserJet 3050 all-in-one scanner assembly
Figure 7-11 Scanner assembly, HP LaserJet 3050 all-in-one
298 Chapter 7 Parts and diagrams ENWW
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Table 7-9 Scanner assembly, HP LaserJet 3050 all-in-one
Ref Description Part number Qty
1 Pickup-tray assembly, HP LaserJet 30 50 all-in-one scanner R M1-3419-000CN 1
2 Control-panel asse mbly, HP LaserJet 3050 all-in-one See Figure 7-12 ADF
components, HP LaserJet 3050
all-in-one on page 300.
3 Tray, delivery , HP LaserJet 3050 all-in- one scanner RM1-8443-000CN 1
4 HP jewel 7121-8285 1
ENWW HP LaserJet 3050 all-in-one scanner assembly 299
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ADF components, HP LaserJet 3050 all-in-one
2
3
3
4
6
11
10
9
7
3
10
3
8A
8B
8C
13
13A
12
Figure 7-12 ADF components, HP LaserJet 3050 all-in-one
300 Chapter 7 Parts and diagrams ENWW
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Table 7-10 ADF components, HP LaserJet 3050 all-in-one
Ref Description Part number Qty
2 Sheet, grounding , HP LaserJet 3050 all-in-one scanner RL1-0376-000CN 1
3 Screw, tap, M4X10 XB4-5401-009CN 6
4 Cover, left, HP LaserJet 3050 all-in-one scanner RM1-3076-000CN 1
6 Cover, right, HP LaserJet 3050 all-in-one scanner RM1-3077-000CN 1
7 Flat, flexible cable (FFC), HP LaserJet 3 050 all-in-one scanner RK2-1214 -000CN 1
8A Cover, top, HP LaserJet 3050 all-in-one RC1-8416-000CN 1
8B Control-panel assembly, HP LaserJet 3050 all-in-one RK2-1209-000CN 1
8C Screw, tap, M4X10 XB4-5401-009CN 3
9 Scanner link assembly, right, HP La serJet 3050 all-in-one RM1-0897-000CN 1
10 Spring, compression, HP LaserJet 3050 all-in-one scanner RU5-2885-000CN 2
11 Scanner link assembly, left, HP LaserJet 3050 all-in-one RM1-0896-000CN 1
12 Guide assembly, HP LaserJet 3050 all-in-one scanner RM1-3066-000CN 1
13 Scanner frame assembly, HP LaserJet 3050 all-in-one RM1-3063-000CN 1
13A Pickup-roller assembly, HP LaserJet 3050 all-in-one scanner RM1-0885-00 0CN 1
Not shown Scanner-hinge tool 5185-74 41 1
Not shown Control-panel overlay, Arabic, HP LaserJet 3050 all-in-one Q6504-00019 1
Not shown Control-panel overlay, Chinese simplified, HP LaserJet 3050 all-
in-one
Q6504-00022 1
Not shown Control-panel overlay, Chinese traditional, HP LaserJet 3050 all-
in-one
Q6504-00020 1
Not shown Control-panel overlay, Czech, HP LaserJet 3050 all-in-one Q6504-00012 1
Not shown Control-panel overlay, Danish, HP LaserJet 3050 all-in-one Q6504-00010 1
Not shown Control-panel overlay, English, HP LaserJet 3050 all-in-one Q2669-40002 1
Not shown Control-panel overlay, Finnish, HP LaserJet 3050 all-in-one Q6504-00009 1
Not shown Control-panel overlay, Greek, HP LaserJet 3050 all-in-one Q6504-00017 1
Not shown Control-panel overlay, Hebrew, HP LaserJet 3050 all-in-one Q6504-00018 1
Not shown Control-panel overlay, Hungarian, HP LaserJet 3050 all-in-one Q6504-00013 1
Not shown Control-panel overlay, Italian, HP LaserJet 3050 all-in-one Q6504-00006 1
Not shown Control-panel overlay, Korean, HP LaserJet 3050 all-in-one Q6504-00021 1
Not shown Control-panel overlay, Norwegian, HP LaserJet 3050 all-in-one Q6504-00008 1
Not shown Control-panel overlay, Polish, HP LaserJet 3050 all-in-one Q6504-00014 1
Not shown Control-panel overlay, Russian, HP LaserJet 3050 all-in-one Q6504-00011 1
Not shown Control-panel overlay, Slovak, HP LaserJet 3050 all-in-one Q6504-00015 1
Not shown Control-panel overlay, Swedish, HP LaserJet 3050 all-in-one Q6504-00007 1
ENWW HP LaserJet 3050 all-in-one scanner assembly 301
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Ref Description Part number Qty
Not shown Control-panel overlay, Thai, HP LaserJet 3050 all-in-one Q6504-00023 1
Not shown Control-panel overlay, Turkish, HP LaserJet 3050 all-in-one Q6504-00016 1
Not shown Control-panel overlay, Vietnamese, HP LaserJet 3050 all-in-one Q6504-00024 1
302 Chapter 7 Parts and diagrams ENWW
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ENWW HP LaserJet 3050 all-in-one scanner assembly 303
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Page 49
Guide assembly, HP LaserJet 3050 all-in-one
8
13
9
14
20
20A
Figure 7-13 Guide assembly, HP LaserJet 3050 all-in-one
304 Chapter 7 Parts and diagrams ENWW
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Table 7-11 Guide assembly, HP LaserJet 3050 all-in-one
Ref Description Part number Qty
Guide assembly, HP LaserJet 3050 all-in-one scanner RM1-3066-000CN 1
8 Scanner media-lever torsion spring (lever, pressure convert) RC1-2544-000CN 1
9 Scanner media lever (lever, pressu re convert), HP LaserJet 3050
all-in-one
RC1-8413-000CN 1
13 Spring, compression, white platen RU5-2196-000CN 3
14 Platen, white, HP LaserJet 3050 all-in-one scanner RF5-3235-000CN 1
20 Separation-pad assembly, HP LaserJet 3050 all-in-one scanner RM1-0890-000CN 1
20A Separation-pad set, HP LaserJet 3050 all-in-one scanner RM1-0891-000CN 1
NOTE The separation-pad set
and the
separation-pad assembly are two different assemblies.
The separation-pad set consists of the pad, clear plastic sheet, and the pad cover. The
separation-pad set is a user-replaceable assembly.
The separation-pad assembly consists of the separation lever, tension spring, feed arm, and the
components of the separation-pad set. The separation-pad assembly is not a user-replaceable
assembly.
Only trained service personnel should attempt to replace the separation-pad assembly.
ENWW HP LaserJet 3050 all-in-one scanner assembly 305
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HP LaserJet 3052/3055 all-in-one scanner assembly
Figure 7-14 Scanner assembly, HP LaserJet 3052/3055 all-in-one
306 Chapter 7 Parts and diagrams ENWW
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Table 7-12 Scanner assembly, HP LaserJet 3052/3055 all-in-one
Ref Description Part number Qty
Flatbed scanner assembly Q6502-60116 1
1 Flatbed scanne r assembly (does not include the flatbed lid) Q6502-60116 1
2 ADF input tray Q3948-60214 1
3 Solar lock Q1636-40036 1
4 Shield, motor Q1636-40010 1
5 ADF/flatbed lid with packag ing Q6502-60117 1
6 Scanner glass replacement kit Q6500-67904 1
ENWW HP LaserJet 3052/3055 all-in-one scanner assembly 307
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Major assemblies, HP LaserJet 3052/3055 all-in-one
Figure 7-15 Major assemblies, HP LaserJet 3052/3055 all-in-one
308 Chapter 7 Parts and diagrams ENWW
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Page 59
Table 7-13
Major assemblies, HP La
serJet 3052/3055 all-in-one
Ref Description Part number Qty
1 ADF cover replacement, HP L aserJet 3052/3055 all-in-one Q6502-67901 1
2 ADF cleanout/comb C7309-40153 1
3 Kit, replacement, ADF input-tra y flag Q3948-67902 1
4 ADF pickup-roller asse mbly 5851-2559 1
5 ADF sep aration pad Q2665-60125 1
ENWW HP LaserJet 3052/3055 all-in-one scanner assembly 309
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Scanner components, HP LaserJet 3052/3055 all-in-one
Figure 7-16 Scanner components, HP LaserJet 3052/3055 all-in-one
310 Chapter 7 Parts and diagrams ENWW
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Table 7-14 Scanner components, HP LaserJet 3052/3055 all-in-one
Ref Description Part number Qty
1 Bezel, Arabic, HP LaserJe t 3052 all-in-one Q6502-40026 1
1 Bezel, blank pa inted, HP LaserJet 3052 all-in-one Q6502-40002 1
1 Bezel, blank unpainted, HP LaserJet 3 052 all-in-one Q6502-40001 1
1 Bezel, Chinese simplified, HP LaserJet 3052 all- in-one Q6502-40029 1
1 Bezel, Chinese traditional , HP LaserJet 3052 all-in- one Q6502-40027 1
1 Bezel, Czech, HP LaserJe t 3052 all-in-one Q6502-40019 1
1 Bezel; Danish, HP LaserJet 3052 all-in-one Q6502-40017 1
1 Bezel, Dutch, HP LaserJet 3052 all-in-o ne Q6502-40012 1
1 Bezel, English, HP LaserJet 3052 all-in-one Q6502-40007 1
1 Bezel, Finnish, HP LaserJe t 3052 all-in-one Q6503-40016 1
1 Bezel, French, HP LaserJet 3052 all-in-one Q6502-40011 1
1 Bezel, German, H P LaserJet 3052 all-in-one Q6502-40010 1
1 Bezel, German unpainted, HP LaserJet 3 052 all-in-one Q6502-40032 1
1 Bezel, Greek, HP LaserJet 3052 all-in- one Q2665-40024 1
1 Bezel, Hebrew, HP LaserJet 3 052 all-in-one Q6502-40025 1
1 Bezel, Hungarian, HP LaserJet 3052 all-in-o ne Q6502-40020 1
1 Bezel, Italian, HP LaserJet 3052 all-in -one Q2665-40013 1
1 Bezel, Korean, HP Laser Jet 3052 all-in-one Q6502-40028 1
1 Bezel, Norwegian, HP LaserJet 305 2 all-in-one Q650 2-40015 1
1 Bezel, Polish, HP LaserJet 3052 all-in-one Q6502-40021 1
1 Bezel, Portuguese, HP Lase rJet 3052 all-in-one Q6502-40009 1
1 Bezel, Russian, HP LaserJet 3052 all-in-one Q6502-40018 1
1 Bezel, Slovak, HP LaserJet 3052 all-in-o ne Q6502-40022 1
1 Bezel, Spanish, HP Laser Jet 3052 all-in-one Q6502-40008 1
1 Bezel, Swedish, HP Lase rJet 3052 all-in-one Q6502-40014 1
1 Bezel, Thai, HP LaserJet 3052 all-in-one Q6502-40030 1
1 Bezel, Turkish, HP LaserJe t 3052 all-in-one Q6502-40023 1
1 Bezel, Vietnamese, H P LaserJet 3052 all-in-one Q6502-40031 1
1 Bezel, Arabic, HP LaserJe t 3055 all-in-one Q6503-40022 1
1 Bezel, blank pa inted, HP LaserJet 3055 all-in-one Q6503-40002 1
1 Bezel, blank unpainted, HP LaserJet 3 055 all-in-one Q6503-40001 1
1 Bezel, Chinese simplified, HP LaserJet 3055 all- in-one Q6503-40025 1
1 Bezel, Chinese traditional, HP LaserJet 3055 a ll-in-one Q6503-40023 1
1 Bezel, Czech, HP LaserJe t 3055 all-in-one Q6503-40015 1
ENWW HP LaserJet 3052/3055 all-in-one scanner assembly 311
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Ref Description Part number Qty
1 Bezel, Danish , HP LaserJet 3055 all-in-one Q6503-40013 1
1 Bezel, Dutch, HP Laser Jet 3055 all-in-one Q6503-40008 1
1 Bezel. English, HP LaserJet 3055 all-in-one Q6505-40003 1
1 Bezel, Finnish, HP LaserJet 3055 all- in-one Q6503-40012 1
1 Bezel, French, HP LaserJet 3055 a ll-in-one Q6505-40007 1
1 Bezel, German, HP LaserJet 3055 all-in-one Q6503-40006 1
1 Bezel, German unpainted, HP LaserJet 30 55 all-in-one Q6503-40028 1
1 Bezel, Greek, HP LaserJet 3055 all-in-one Q6503-40020 1
1 Bezel, Hebrew, HP LaserJet 30 55 all-in-one Q6503-40021 1
1 Bezel, Hungarian HP LaserJet 3055 all-in-one Q6505-40016 1
1 Bezel, Italian, HP LaserJet 3055 all- in-one Q6503-40009 1
1 Bezel, Korean, HP LaserJe t 3055 all-in-one Q6503-40024 1
1 Bezel, Norwegian, HP LaserJet 3055 all-in-one Q6503-40011 1
1 Bezel, Polish, HP LaserJet 3055 all-in-one Q6503-40017 1
1 Bezel, Portuguese, HP Laser Jet 3055 all-in-one Q6503-40005 1
1 Bezel, Russian, HP LaserJet 3055 all-in-one Q6503-40014 1
1 Bezel, Slovak, HP LaserJet 3055 all-in-on e Q6505-40018 1
1 Bezel, Spanish, HP LaserJet 3055 all-in-one Q6503-40004 1
1 Bezel, Swedish, HP Laser Jet 3055 all-in-one Q6503-40010 1
1 Bezel, Thai, HP LaserJet 305 5 all-in-one Q6503-40026 1
1 Bezel, Turkish, HP LaserJet 3055 all- in-one Q6503-40019 1
1 Bezel, Vietnamese, HP LaserJet 3055 all-in -one Q6503-40027 1
2 Control pane l, HP LaserJet 3052 all-in-one Q6502-6010 1
2 Control pane l, HP LaserJet 3055 all-in-one Q6503-6010 1
3 Scanner link assembly, kit, HP LaserJet 3 052/3055 all-in-one Q6502-6790 3 1
312 Chapter 7 Parts and diagrams ENWW
Page 66
Page 67
ENWW HP LaserJet 3052/3055 all-in-one scanner assembly 313
Page 68
Page 69
Printer (product base), HP LaserJet 3050/3052/3055 all-inone
3
2
1
Figure 7-17 Printer (product base), HP LaserJet 3050/3052/3055 all-in -one
314 Chapter 7 Parts and diagrams ENWW
Page 70
Page 71
Table 7-15
Printer (product ba
se), HP LaserJet 3050/3052/3055 all-in-one
Ref Description Part number Qty
1 Print engin e HP LaserJet 3050 all-in-one, replacement 110 V Q6504-67001 1
1 Print engin e HP LaserJet 3050 all-in-one, replacement 220 V Q6504-67002 1
1 Print engin e HP LaserJet 3050 all-in-one, exchange 110 V Q6504-69001 1
1 Print engin e HP LaserJet 3050 all-in-one, exchange 220 V Q6504-69002 1
1 Print engin e HP LaserJet 3052 all-in-one, replacement 110 V Q6502-67001 1
1 Print engin e HP LaserJet 3052 all-in-one, replacement 220 V Q6502-67002 1
1 Print engin e HP LaserJet 3055 all-in-one, replacement 110 V Q6503-67001 1
1 Print engin e HP LaserJet 3055 all-in-one, replacement 220 V Q6503-67002 1
2 Delivery tray a ssembly RM1-3059-000CN 1
3 Pickup tray assembly RM1-3060-000CN 1
Not shown Print cartridge Q2460-67913 1
Not shown HP jewel 7121-8285 1
NOTE The printer/product base (reference items 1 or 2) does not come with all of the
components that are required to make it a functioning unit. Components from the unit that is being
serviced must be removed from that unit and installed on the replacement unit. See Replacing
the printer engine assembly on page 285 in this chapter for a complete list of the components
you must replace on the print engine.
ENWW Printer (product base), HP LaserJet 3050/3052/3055 all-in-one 315
Page 72
Page 73
External covers, printer (product base)
1
2
3
7
5
4
6
Figure 7-18 External covers, printer (product base)
316 Chapter 7 Parts and diagrams ENWW
Page 74
Page 75
Table 7-16
External covers,
printer (product base)
Ref Description Part number Qty
1 Door, prin t cartridge RC1-8372-000CN 1
2 Cove r, right RC1-8374-000CN 1
3 Scanner cushion RC1-2476-000CN 2
4 Cove r, front RL1-1160-000CN 1
5 Cover, left RC1-8373-000CN 1
6 Cove r, rear RC1-2474-000CN 1
7 Cove r, top (scanner support-frame), printer RL1-1161-000CN 1
ENWW Printer (product base), HP LaserJet 3050/3052/3055 all-in-one 317
Page 76
Page 77
Formatter and LIU
Figure 7-19 Formatter and LIU
318 Chapter 7 Parts and diagrams ENWW
Page 78
Page 79
Table 7-17 Formatter and LIU
Ref Description Part number Qty
1 Formatter, HP Lase rJet 3050 all-in-one Q7844-60002 1
1 Formatter, HP Lase rJet 3052 all-in-one Q7528-60001 1
1 Formatter, HP Lase rJet 3055 all-in-one Q7529-60002 1
2 LIU, HP LaserJet 3050 all-in-one, US/WW Q2663-60001 1
2 LIU, HP LaserJet 3050 all-in-one, EMEA Q2687-60002 1
2 LIU, HP LaserJet 3055 all-in-one, US/WW Q2663-60001 1
2 LIU, HP LaserJet 3055 all-in-one, EMEA Q2687-60002 1
ENWW Printer (product base), HP LaserJet 3050/3052/3055 all-in-one 319
Page 80
Page 81
Internal components, printer (product base)
A
A
B
B
15
8
501
(PS803)
(J203)
7
(J202)
(PS802)
(PS801)
6
1
501
502
21
21A
20
Figure 7-20 Internal components, printer (product base) (1 of 3)
320 Chapter 7 Parts and diagrams ENWW
Page 82
Page 83
Table 7-18
Internal components, prin
ter (product base) (1 of 3)
Ref Description Part number Qty
1 Panel, rear RC1-8368-000CN 1
6 Separation-pad asse mbly, printer RM1-2048-000CN 1
7 Transfer-roller assembly RM1-2062-000CN 1
8 Power- supply assembly, 110-127 V RM1-3402-000CN 1
8 Power- supply assembly, 220-240 V RM1-3403-000CN 1
15 Screw, rs, M3X8 XA9-1420-000CN 4
20 Fuser, 110-127V RM1-3044-000CN 1
20 Fuser, 220-240V RM1-3045-000CN 1
21 Pickup assembly RM1-3043-000CN 1
21A Roller, pickup, printer (product base ) RL1-0266-000CN 1
501 Screw, w/washer, M3X6 XB2-7300-605CN 2
502 Screw, tap, M4X10 XB4-5401-009CN 1
ENWW Printer (product base), HP LaserJet 3050/3052/3055 all-in-one 321
Page 84
Page 85
A
B
B
A
6
7
14
9
10
15
(J201)
(J801)
(J904)
Figure 7-21 Internal components, printer (product base) (2 of 3)
322 Chapter 7 Parts and diagrams ENWW
Page 86
Page 87
Table 7-19
Internal components, prin
ter (product base) (2 of 3)
Ref Description Part number Qty
6 Laser/scanne r assembly RM1-2033-030CN 1
7 Engine-controller-PCB assemb ly RM1-3404-000CN 1
8 Sprin g, compression RU5-2492-000CN 2
9 Latch, left RC1-2498-000CN 1
10 Latch, right RC1-2499-000CN 1
14 Screw, rs, M3X8 XA9-1420-000CN 2
15 Screw, rs, M2X10 XA9-1501-000CN 4
ENWW Printer (product base), HP LaserJet 3050/3052/3055 all-in-one 323
Page 88
Page 89
(M1)
(J3)
(J001)
(SP1)
5
22
26
4
2
24
Figure 7-22 Internal components, printer (product base) (3 of 3)
324 Chapter 7 Parts and diagrams ENWW
Page 90
Page 91
Table 7-20
Internal components, prin
ter (product base) (3 of 3)
Ref Description Part number Qty
2 Bushing RC1-1953-000CN 1
5 Link, couplin g lower RC1- 2485-000CN 1
6 Link, couplin g top R C1-2494-000CN 1
22 Screw, w/washer, M3x8 XA9-1420-000CN 1
24 Motor, stepping, dc RK2-0777-000CN 1
26 Speaker assembly RM1-3410-000CN 1
ENWW Printer (product base), HP LaserJet 3050/3052/3055 all-in-one 325
Page 92
Page 93
Alphabetical parts list
Table 7-21 Alphabetical parts list
Description Part number Table and pa ge
ADF cleanout/comb C7309-40153 Major assemblies, HP LaserJet
3052/3055 all-in-one
on page 309
ADF cover replacement, HP LaserJet 3052/3055 all-in-one Q6502-67901 Major assemblies, HP LaserJet
3052/3055 all-in-one
on page 309
ADF input tray Q3948-60214 Scanner assembly,
HP LaserJet 3052/3055 all-inone on page 307
ADF pickup-roller assembly 5851-2559 Major assemblies, HP LaserJet
3052/3055 all-in-one
on page 309
ADF separation pad Q2665-60125 Major assemblies, HP LaserJet
3052/3055 all-in-one
on page 309
ADF/flatbed lid with packaging Q6502-60117 Scanner assembly,
HP LaserJet 3052/3055 all-inone on page 307
Bezel, Arabic, HP LaserJet 3052 all-in-one Q6502-40026 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Arabic, HP LaserJet 3055 all-in-one Q6503-40022 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, blank painted, HP LaserJet 3052 all-in-one Q6502-40002 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, blank painted, HP LaserJet 3055 all-in-one Q6503-40002 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, blank unpainted, HP LaserJet 3052 all-in-one Q6502-40001 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, blank unpainted, HP LaserJet 3055 all-in-one Q6503-40001 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Chinese simplified, HP LaserJet 3052 all-in-one Q6502-40029 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Chinese simplified, HP LaserJet 3055 all-in-one Q6503-40025 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Chinese traditional , HP LaserJet 3052 all-in-one Q6502-40027 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
326 Chapter 7 Parts and diagrams ENWW
Page 94
Page 95
Description Part number Table and page
Bezel, Chinese traditional, HP LaserJet 3055 all-in-one Q6503-40023 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Czech, HP LaserJet 3052 all-in-one Q6502-40019 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Czech, HP LaserJet 3055 all-in-one Q6503-40015 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Danish, HP LaserJet 3055 all-in-one Q6503-40013 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Dutch, HP LaserJet 3052 all-in-one Q6502-40012 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Dutch, HP LaserJet 3055 all-in-one Q6503-40008 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, English, HP LaserJet 3052 all-in-one Q6502-40007 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Finnish, HP LaserJet 3052 all-in-one Q6503-40016 Scan ner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Finnish, HP LaserJet 3055 all-in-one Q6503-40012 Scan ner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, French, HP LaserJet 3052 all-in-one Q6502-40011 Scanner co mponents,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, French, HP LaserJet 3055 all-in-one Q6505-40007 Scanner co mponents,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, German unpainted, HP LaserJet 3052 all-in-one Q6502-40032 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, German unpainted, HP LaserJet 3055 all-in-one Q6503-40028 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, German, HP LaserJet 3052 all-in-one Q6502-40010 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, German, HP LaserJet 3055 all-in-one Q6503-40006 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Greek, HP LaserJet 3052 all-in-one Q2665-40024 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Table 7-21 Alphabetical parts list (continued)
ENWW Alphabetical parts list 327
Page 96
Page 97
Description Part number Table and pa ge
Bezel, Greek, HP LaserJet 3055 all-in-one Q6503-40020 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Hebrew, HP LaserJet 3052 all-in-one Q6502-40025 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Hebrew, HP LaserJet 3055 all-in-one Q6503-40021 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Hungarian HP LaserJet 3055 all-in-one Q6505-40016 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Hungarian, HP LaserJet 3052 all-in-one Q6502-40020 Scanner comp onents,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Italian, HP LaserJet 3052 all-in-one Q2665-40013 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Italian, HP LaserJet 3055 all-in-one Q6503-40009 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Korean, HP LaserJet 3052 all-in-one Q6502-40028 Scann er components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Korean, HP LaserJet 3055 all-in-one Q6503-40024 Scann er components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Norwegian, HP LaserJet 3052 all-in-one Q650 2-40015 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Norwegian, HP LaserJet 3055 all-in-one Q650 3-40011 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Polish, HP LaserJet 3052 all-in-one Q6502-40021 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Polish, HP LaserJet 3055 all-in-one Q6503-40017 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Portuguese, HP LaserJet 3052 all-in-one Q6502-40009 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Portuguese, HP LaserJet 3055 all-in-one Q6503-40005 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Russian, HP LaserJet 3052 all-in-one Q6502-40018 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Table 7-21 Alphabetical parts list (continued)
328 Chapter 7 Parts and diagrams ENWW
Page 98
Page 99
Description Part number Table and page
Bezel, Russian, HP LaserJet 3055 all-in-one Q6503-40014 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Slovak, HP LaserJet 3052 all-in-one Q6502-40022 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Slovak, HP LaserJet 3055 all-in-one Q6505-40018 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Spanish, HP LaserJet 3052 all-in-one Q6502-40008 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Spanish, HP LaserJet 3055 all-in-one Q6503-40004 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Swedish, HP LaserJet 3052 all-in-one Q6502-40014 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Swedish, HP LaserJet 3055 all-in-one Q6503-40010 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Thai, HP LaserJet 3052 all-in-one Q6502-40030 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Thai, HP LaserJet 3055 all-in-one Q6503-40026 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Turkish, HP LaserJet 3052 all-in-one Q6502-40023 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Turkish, HP LaserJet 3055 all-in-one Q6503-40019 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Vietnamese, HP LaserJet 3052 all-in-one Q6502-40031 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel, Vietnamese, HP LaserJet 3055 all-in-one Q6503-40027 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel. English, HP LaserJet 3055 all-in-one Q6505-40003 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bezel; Danish, HP LaserJet 3052 all-in-one Q6502-40017 Scanner components,
HP LaserJet 3052/3055 all-inone on page 311
Bushing RC1-1953- 000CN Internal components, printer
(product base) (3 of 3)
on page 325
Table 7-21 Alphabetical parts list (continued)
ENWW Alphabetical parts list 329
Page 100
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