Tech Manuals HP M401pc
Tech Manuals HP M401pc
Tech Manuals HP M401pc
NOTE: In this chapter, part numbers are listed only for available replaceable parts.
● Assembly locations
● Internal assemblies
● Input devices
ENWW 59
Order parts by authorized service providers
Order replacement parts
Table 2-1 Order parts, accessories, and supplies
Order through service or support providers Contact an HP-authorized service or support provider.
HP LaserJet Pro 400 M401 Printer Series User Guide Product user guide CF270-90908 (English)
HP LaserJet Pro 400 M401 Printer Series Repair Manual English repair manual (this CF270-90977
manual)
HP LaserJet Pro 400 M401 Printer Series Troubleshooting English troubleshooting CF270-91001
Manual manual
CF280X (extended)
HP LaserJet Pro 400 M401a Printer 220v WUR EMEA CF270-69001 (exchange)
HP LaserJet Pro 400 M401d Printer 220v WUR EMEA CF274-69001 (exchange)
HP LaserJet Pro 400 M401n Printer 110v WUR NAR/TW CZ195-69001 (exchange)
HP LaserJet Pro 400 M401dn Printer 110v WUR NAR/TW CF278-69001 (exchange)
HP LaserJet Pro 400 M401dw Printer 110v WUR NAR/TW CF285-69001 (exchange)
CAUTION: Be sure to order the correct part. When looking for part numbers for electrical
components, pay careful attention to the voltage that is listed in the description column. Doing so will
ensure that the part number selected is for the correct all-in-one model.
NOTE: In this manual, the abbreviation “PCA” stands for “printed circuit-board assembly.”
Components described as a PCA might consist of a single circuit board or a circuit board plus other
parts, such as cables and sensors.
1 2 3 4 5
11 10 9 8 7 6
Table 2-5 Assembly locations: HP LaserJet M401a, M401n, M401d models
1 Cartridge door 7 Rear cover (HP LaserJet M401a and M401n models)
or duplex cover (HP LaserJet M401d model)
6 DIMM door
1 2 3 4 5
11 10 9 8 7 6
Table 2-6 Assembly locations: HP LaserJet M401dn and M401dw models
6 DIMM cover
3 2
Table 2-7 Assembly locations: optional paper feeder
SIMPLEX MODEL
3
A02
1
3
DUPLEX MODEL
A01
(J215)
(J1001)
10
9
8
5
6
A02
14
11
12
A10
A03
2 13
A02 A04
A05
A06
(J2)
A07
A11
4
A09
3
A08
A08
A02
A01
(J215)
(J1001)
10
9
7
5
A02 6
1 A07
A03
A
A12
A13
A14 A03
A03
A11
A08
A15
A10
A14 A01
A16
A17
A A09
A18
A12
(J101) 3
A02 A07
A01
A04
A03
(J202) A05
1 A08
(M1)
(J1202) A06 A09
(J1202)
5
A11
A13
A15 A31 A10
TOUCHSCREEN
MODEL
A15
A38
A14
A15
A16
A18
A37
A15
A39 A29 A17
A31
A36 A28
A15 A27 A26
A19
A15 A23
A34 A24
A35
A15
A15 A22
A33
A20
A15 A25
4
A15
A15 A30 6
A31
A32 2
A31
2 Bushing RC2-8263-000CN 1
4 Bushing RC2-6131-000CN 1
A13 A04
4
(J802)
A02
A01
1 A12
A05
(J801) 3
(J5)
A07
A24 A06
A22
A08
A09
A23 (J581)
A10
2 A26 A17
A12
A14
A19
A21
A16 5
A18
A15
A20
(J203)
A25 A11
A12
6
A13
A03
1
A24
A02
(FM1) (J211)
(J1105)
A04
(J1205D)
(J1205F)
A01 A05
A11 A24 2
A01
(J207)
(J207)
A06
(SL2)
A12 (J1102) A01 (J1104)
A01
3
A10 A07
(SW301)
A08
A24
A22
A13
A21 A14
A23
A09 A15
A01 A19
4 5
(SL1) 8
(J6)
7
A16
A17
A16
A18 6
1 Fan RK2-4418-000CN 1
4 Solenoid RK2-2731-000CN 1
(FT3)
DUPLEX MODEL
A
(J7) 1
(FT2)
SIMPLEX MODEL
(FT1)
3
A03
A01
A04
DUPLEX MODEL
(SL3)
(J1101)
DUPLEX MODEL
A01 3
4
A01
A02
A01
USB MODEL
A08
A03
4
3
6 Universal serial bus (USB) PCA (HP LaserJet M401dn and CF368-60001 1
M401dw models only)
A09
(SL4)
(J1202)
A07
2
A07
A08
A16
A07
A07
A17 A10
A07
A07
A15
A14
A07 A12
A07
A11
A12
2 Solenoid RK2-0426-000CN 1
A01 A03
A04
A07
A02 1
A07
A09
(J1205)
A04 A04
2
A10
A13
(PS1201)
A04 (J1203)
A11 5
(J1205)
A04
A12
A06
A08
A05
A06 4
Control-panel assembly (HP Laserjet M401dn model only) CF270-60101 Covers, panels, and doors
(touchscreen control panel
models) on page 69
Control-panel assembly (HP Laserjet M401dw model only) CF285-60101 Covers, panels, and doors
(touchscreen control panel
models) on page 69
Duplexing paper feed assembly (duplex models only) RM1-9153-000CN Internal components (5 of 5)
on page 79
Engine controller assembly (DC controller) PCA — 110V RM1-9164-000CN PCA location on page 81
Engine controller assembly (DC controller) PCA — 220V RM1-9165-000CN PCA location on page 81
Formatter PCA (China, HP LaserJet M401a, M401d models) CF148-69001 PCA location on page 81
Formatter PCA (China, HP LaserJet M401dn, M401dw models) CF150-69001 PCA location on page 81
Formatter PCA (China, HP LaserJet M401n model) CF149-69001 PCA location on page 81
Formatter PCA (HP LaserJet M401a, M401d models) CF148-60001 PCA location on page 81
Formatter PCA (HP LaserJet M401dn, M401dw models) CF150-60001 PCA location on page 81
Formatter PCA (HP LaserJet M401n model) CF149-60001 PCA location on page 81
Paper feeder paper sensor PCA RM1-1267-000CN Paper feeder main body
(2 of 2) on page 87
Paper feeder pickup roller assembly RM1-9168-000CN Paper feeder main body
(2 of 2) on page 87
Paper feeder separation pad holder assembly RM1-6303-000CN Paper feeder main body
(2 of 2) on page 87
Universal serial bus (USB) PCA (HP LaserJet M401dn and CF368-60001 PCA location on page 81
M401dw models only)
Wireless PCA (HP LaserJet M401dw model only) CF270-60101 PCA location on page 81
Wireless PCA holder (not pictured — HP LaserJet M401dw CF286-40014 PCA location on page 81
model only)
CF148-60001 Formatter PCA (HP LaserJet M401a, M401d models) PCA location on page 81
CF148-69001 Formatter PCA (China, HP LaserJet M401a, M401d models) PCA location on page 81
CF149-60001 Formatter PCA (HP LaserJet M401n model) PCA location on page 81
CF149-69001 Formatter PCA (China, HP LaserJet M401n model) PCA location on page 81
CF150-60001 Formatter PCA (HP LaserJet M401dn, M401dw models) PCA location on page 81
CF150-69001 Formatter PCA (China, HP LaserJet M401dn, M401dw models) PCA location on page 81
CF270-60101 Control-panel assembly (HP Laserjet M401dn model only) Covers, panels, and doors
(touchscreen control panel
models) on page 69
CF270-60101 Wireless PCA (HP LaserJet M401dw model only) PCA location on page 81
CF285-60101 Control-panel assembly (HP Laserjet M401dw model only) Covers, panels, and doors
(touchscreen control panel
models) on page 69
CF286-40014 Wireless PCA holder (not pictured — HP LaserJet M401dw PCA location on page 81
model only)
CF368-60001 Universal serial bus (USB) PCA (HP LaserJet M401dn and PCA location on page 81
M401dw models only)
RM1-1267-000CN Paper feeder paper sensor PCA Paper feeder main body
(2 of 2) on page 87
RM1-6303-000CN Paper feeder separation pad holder assembly Paper feeder main body
(2 of 2) on page 87
RM1-9153-000CN Duplexing paper feed assembly (duplex models only) Internal components (5 of 5)
on page 79
RM1-9164-000CN Engine controller assembly (DC controller) PCA — 110V PCA location on page 81
RM1-9165-000CN Engine controller assembly (DC controller) PCA — 220V PCA location on page 81
RM1-9168-000CN Paper feeder pickup roller assembly Paper feeder main body
(2 of 2) on page 87
A E P
accessories electrostatic discharge (ESD) 2 panels
ordering 60 engine controller assembly, parts list 66
after-service checklist 4 removing 41 paper-pickup-gear assembly
ESD (electrostatic discharge) replacing 52
C precaution during parts part number
cartridge removal 2 toner cartridge 60
ordering 60 whole-unit replacement 60
part number 60 F parts 59
cautions iii face-down-drive assembly (base assemblies 0
checklists model) cover locations 66
after-service 4 replacing 32 door locations 66
preservice 3 formatter PCA, removing 48 internal assembly locations 70
conventions, document iii front door, removing 23 panel locations 66
covers fuser, removing 29 screws 3
left, removing 11 pliers, required 3
locations 66 I post-service tests 4
parts list 66 internal assembly preservice checklist 3
right, removing 12 locations 70 print quality
top, removing 13, 16 parts list 70 test 4
covers, removing
rear 20 L R
left cover, removing 11 rear cover, removing 20
D location rear door, removing 20
diagrams 59 assemblies 0 removing parts
covers. panels, and doors 66 cautions for 2
internal assemblies 70 M checklists 3
document conventions iii main motor duplex-paper-feed assembly
doors replacing 37 20
front, removing 23 engine controller assembly 41
parts list 66 N formatter PCA 48
Tray 1, removing 23 notes iii front doors 23
doors, removing fuser 29
rear 20 O left cover 11
duplex ordering order of 5
paper-feed assembly (duplex product documents 60 rear cover 20
model) replacing 32 supplies and accessories 60 rear door 20
paper-feed assembly, toner cartridge 60 right cover 12
removing 20 whole-unit replacement 60
ENWW Index 99
tools, required 3
top cover 13, 16
replacing
duplexing-paper-feed assembly
(duplex model) 32
face-down-drive assembly (base
model) 32
main motor 37
paper-pickup-gear assembly
52
parts 2
right cover, removing 12
rollers, pickup and separation;
removing 6
S
screwdrivers, required 3
screws
replacing 2
service
tools, required 3
static precautions 2
supplies
ordering 60
T
tests
post-service 4
print-quality 4
tips iii
toner cartridge
ordering 60
part number 60
tools, required 3
top cover, removing 13, 16
Tray 1 door, removing 23
W
warnings iii
www.hp.com
*CF270-90977*
*CF270-90977*
CF270-90977