Hp 3500 3700

HP3500/3700TECH

Technical Instructions Printers OEM Info Tools 1
CORPORATE HP Color LaserJet 3500 Part Number: Q2670A – Tools required:
Black (HP CLJ3500/3550/3700) Phillips Screwdriver
LOS ANGELES, USA HP Color LaserJet 3500N Small Flat Blade Screwdriver
US 1 800 394.9900 HP Color LaserJet 3550 Part Number: Q2681A – X-acto knife
Int’l +1 818 837.8100 Cyan (HP CLJ3700) Mag Funnel
FAX 1 800 394.9910
HP Color LaserJet 3550N
Part Number: Q2682A – Diagonal cutters
Int’l +1 818 838.7047 HP Color LaserJet 3700 Yellow (HP CLJ3700) Spring Hook
HP Color LaserJet 3700N DRPINTOOL
Part Number: Q2683A –
ATLANTA, USA HP Color LaserJet 3700DN Magenta (HP CLJ3700) Supplies required:
US 1 877 676.4223 HP Color LaserJet 3700DNT Part Number: Q2671A – Padding Powder
Cyan (HP CLJ3500/3550) Soft Lint-Free Cloth
Int’l +1 678 919.1189 Cotton Swabs
FAX 1 877 337.7976 Part Number: Q2672A – Conductive Grease
Int’l +1 770 516.7794 Yellow (HP CLJ3500/3550) Anhydrous Isopropyl Alcohol
Part Number: Q2673A – Vacuum or Compressed Air
Magenta (HP CLJ3500/3550) Sealing Foam
KANSAS CITY, USA
US 1 913 871.1700
FAX 1 913 888.0626
Photo 1
MIAMI, USA Step 1
US 1 800 595.4297
Int’l +1 305 594.3396 Hold the cartridge so the drive gear element is
FAX 1 800 522.8640 facing you. Release the tension spring attached
Int’l +1 305 594.3309
to the drum shutter using a spring hook.
NEW YORK, USA (See Photo 1)
US 1 800 431.7884
Int’l +1 631 588.7300
FAX 1 800 431.8812
Int’l +1 631 588.7333

TORONTO, CAN
CAN 1 877 848.0818
Int’l +1 905 712.9501
FAX 1 877 772.6773
Int’l +1 905 712.9502

BUENOS AIRES, ARG Photo 2
ARG 0810 444.2656 Step 2
Int’l +011 4583.5900
FAX +011 4584.3100 Rotate the cartridge so the contact end of
the cartridge is facing you. Release cartridge
MELBOURNE, AUS tension spring attached to the waste and toner
AUS 1 800 003. 100 hoppers using a spring hook.
Int’l +62 03 9561.8102
FAX 1 800 004.302 (See Photo 2)
Int’l +62 03 9561-7751

SYDNEY, AUS
AUS 1 800 003.100
Int’l +62 02 9648.2630
FAX 1800 004.302
Int’l +62 02 9548.2635

MONTEVIDEO, URY
URY 02 902.2001
Photo 3
Int’l +5982 902.2001 Step 3
FAX +5982 900.0858
Use an X-acto knife to remove the plastic cover-
JOHANNESBURG, S.A. ing the cartridge pin.
S.A. +27 11 974.6155 (See Photo 3)
FAX +27 11 974.3593

SÃO PAULO, BRAZIL
Int’l +55 11 5524.8000

RAANANA, ISRAEL
ISR 09 760.12.39
Int’l +972 9760.12.39
ISR 052.38.555.82
Int’l +972 5238.555.82

E-mail: info@futuregraphicsllc.com Website: www.futuregraphicsllc.com
REV. 8/01/06

2 HP3500/3700 Technical Instructions

Photo 7
Step 7
Position the waste hopper with drum facing up
and towards you.
Step 4 (See Photo 7)
Using diagonal cutters, remove the
cartridge pin.
(See Photo 4)

Photo 8
Photo 4 Step 8
Locate the spring pin that locks the drum’s
drive hub in place. Rotate drum until the
square opening on the drive hub faces up.
(See Photo 8)

Photo 9 Step 9
Use the DRPINTOOL to push the spring pin
Step 5 through the round opening of the drum hub
Rotate the cartridge again so the and shaft. Use the alignment pin to ensure the
drive element is facing you. Repeat feed through hole of the tool is correctly
steps 4 and 5 to remove the car- aligned. Turn the tool handle clock wise and
tridge pin. (See Photo 5) align the point of the tool shaft into the spring
NOTE: If needed, use the X-acto pin hole. Turn the handle with consistent effort
knife to cut slots for improved until the pin exits from the feed through hole.
access to the pin using the diagonal (See Photo 9)
cutters.
Photo 10
Step 10
Photo 5
Remove the drum axle and drum. Set aside.
(See Photo 10). Cover drum to protect from
light exposure.

Photo 11
Step 11
Release the white PCR retaining arms from
Step 6 each end of the PCR. (See Photo 11). Carefully
Separate toner hopper from the remove the PCR. Clean PCR using a dry, soft
waste hopper. (See Photo 6) Set lint-free cloth. NOTE: If needed, water can be
toner hopper aside. used to clean the PCR.

Photo 6

Photo 12
Step 12
Clean PCR saddles with a cotton swab and
Anhydrous Isopropyl Alcohol. (See Photo 12)

HP3500/3700 Technical Instructions 3
Photo 13
Step 13
Remove the two Phillips screws holding the
wiper blade using #1 Phillips screwdriver. Lift
one end of the wiper blade with the Step 19
needlenose pliers and pull the blade away from Clean drum axle bearings and drum
the waste hopper. contact with cotton swab and
(See Photo 13) Anhydrous Isopropyl Alcohol.
(See Photos 19 & 20)

Photo 14
Step 14 Photo 19
Remove the OEM wiper blade sealing foam
from the waste hopper.
(See Photo 14)

Step 15
Photo 15 Clean waste hopper with a vacuum or dry
compressed air. Remove any remaining toner Photo 20
using a dry soft lint-free cloth.

Step 16
Apply padding power to the new wiper blade
using a soft lint-free cloth. Place the new wiper
blade onto the waste hopper. Install the two
screws that hold the waste hopper in place.
(See Photo 15)

Photo 16
Step 17 Step 20
Apply sealing foam along the edge of the wiper Apply conductive grease to the
blade and waste cartridge. right side axle bearing using the
(See Photo 16) cotton swab stick end. (See Photo
21) Apply padding powder to the
OPC drum using a lint-free soft
cloth.

Photo 17
Photo 21
Step 18
Apply conductive grease to the black PCR sad-
dle. Place the white PCR retaining arms on
each side of the PCR and install the PCR.
(See Photos 17 & 18)

Photo 18


Photo 24
Step 23
Apply conductive grease to the drum axle con-
tact. (See Photo 24) Rotate the drum 5 to 10
Step 21
revolutions to ensure drum is not binding on
Place OPC drum onto the waste the wiper blade. Clean the padding powder off
hopper so the drive hub sits next to the PCR using a dry soft lint-free cloth while
the contact. Install drum axle rotating drum.
through the OPC drum.
(See Photo 22)

Photo 22 Photo 25
Step 24
Reconnect the spring attached to the drum
shutter. Set the waste hopper aside and cover
unit to protect OPC drum from light.

Step 25
Remove the Phillips screw holding the contact
end cap to the toner hopper using the #1
Phillips screwdriver. (See Photo 25)

Step 22
Photo 26
Align the square opening on the Step 26
drum drive hub with the hole in the
drum axle. Install the drum spring Remove the two Phillips screws holding the
pin. Use the alignment pin to ensure developer roller end cap using the #1 Phillips
the feed through hole of the tool is screwdriver. (See Photo 26) Remove the end
correctly aligned with the drum drive cap.
hub hole. Turn the tool handle clock-
wise with consistent effort until
approximately 1/8” of pin is
exposed through both sides of the
drum drive hub. (See Photo 23)

Photo 27
Step 27
Photo 23 Carefully rotate the toner hopper so the gear
assembly is facing you. Remove the two
screws that hold the gear housing end cap to
the toner hopper. (See Photo 27) Remove the
end cap.

Photo 28
Step 28
Remove the large black drive gear and the
white developer roller gear. (See Photo 28)



Photo 29
Step 29
Release the clip that holds the gear retaining
plate using a small flat bladed screwdriver.
(See Photo 29)
Step 34
Remove the two Phillips screws
holding the doctor blade to the
toner hopper. Clean the doctor
blade using dry compressed air.
(See Photo 34)

Photo 30 Photo 34
Step 30
Remove the three white gears from the end of
the hopper.
(See Photo 30)

Photo 31
Step 35
Step 31 Clean gears using dry compressed
Using a Phillips screwdriver remove the two air and dry, soft lint-free cloth.
screws that hold the developer roller end cap
to the toner hopper. (See Photo 31) Remove Step 36
the end cap. The next steps will fill the toner car-
tridge with the supply roller in place
using the Mag Funnel. Place toner
cartridge into holding device or fix-
ture. Place the Mag Funnel in the
opening for the developer roller.
Holding the Mag Funnel in one
Photo 32
hand, pour the toner with the other
Step 32 hand. (See Photo 35)
NOTE: Look inside of toner car-
Lift the developer roller from the toner cartridge to ensure the agitator blade
tridge. Remove the white bushings from the is not blocking opening. Move the
ends of the developer roller. (See Photo 32) agitator drive gear to move the
blade into the correct position.

Step 33
Photo 35
Install the drive gear end on the developer
roller axle into a drill motor and tighten in the
chuck. Clean the developer roller using a lint-
Photo 33 free cloth and 99% alcohol while the roller is
rotating in the drill. (See Photo 33) Once the
roller is clean, go over the roller again using
distilled water and a soft lint-free cloth. Make
several passes. Dry the roller using a dry, soft
lint-free cloth.
NOTE: The surface of the developer roller may
change and become wrinkled. If properly
cleaned, the developer roller will go back to its
original state when finished with the cleaning
process.


Photo 36
Step 37
Pour slowly to allow toner to settle into toner
cartridge. Tap funnel and cartridge as needed Step 43
to move toner into cartridge. (See Photo 36)
Clean the excess toner from the developer Install the three white gears onto
roller and doctor bar area. the end cap.
(See Photo 42)

Photo 37 Photo 42
Step 38
Place the doctor blade onto a flat surface or a
cleaning fixture. Clean the doctor blade using a
lint free cloth and 99% alcohol. (See Photo 37)
NOTE: Do not use pressure to clean the surface
of the doctor blade. Wipe the surface of the
blade until all the toner build up is removed from
the blade. Do not bend the doctor blade. Visually
inspect the doctor blade before reinstalling the
blade onto the cartridge.

Photo 38 Step 44
Step 39
Install the metal gear retaining plate
Place the cleaned doctor blade into the toner onto the end cap.
cartridge and install two Phillips screws to hold (See Photo 43)
the blade in place. (See Photo 38)

Photo 43

Photo 39
Step 40
Install the white developer roller bushings onto
the shaft of the developer roller. Place the
developer roller onto the toner hopper so the
long end of the shaft is on the gear side of the
hopper. (See Photo 39)

Photo 40 Step 45
Step 41 Install the white developer roller
Install the developer roller end cap onto the gear and the large black drive gear
contact side of the cartridge and install the two onto the end cap.
screws that hold the end cap in place. (See Photo 44)
(See Photo 40)

Photo 44

Photo 41
Step 42
Install the developer roller end cap on the gear
side of the hopper. Install the two screws that
hold the end cap in place.
(See Photo 41)


Photo 48
Step 48
Place the contact end cap onto the toner hop-
per and install the screw that holds the end
Step 46 cap in place. (See Photo 48)
Place the gear housing end cap
onto the hopper. Install the two
screws that hold the end cap in
place. (See Photo 45) Step 49
Photo 49
Place waste hopper on the work bench so the
drum is facing up. Align the toner hopper and
waste hopper and join the two sections togeth-
Photo 45 er. Check the tension spring on the back of the
hopper to make sure it sits flat against the
toner hopper. (See Photo 49)

Step 50
Photo 50 Install the cartridge pins in each of the
cartridge. (See Photo 50)
NOTE: The large pin goes on the gear end of
the cartridge. (See Photo 51)

Photo 51
Step 47
Clean the contacts on contact side
end cap using cotton swab and
Anhydrous Isopropyl Alcohol.
Photo 52
(See Photo 46)
Apply contact grease to the devel-
oper roller and supply roller con-
tacts using the cotton swab stick
end. (See Photo 47)

Step 51
Photo 46
Attach the drum shutter tension spring to the
shutter bar. (See Photo 52)
Photo 53

Step 52
Attach the tension spring to the post contact
side of the toner hopper and the post next to
the drum shutter using a spring hook.
(See Photo 53)
Photo 47
Photo 54

Step 52
Replace the cartridge chip.
(See Photo 54)



HP 3500/3700
In January of 2004, HP released two color laser printers into
the North American market. The HP Color LaserJet 3500 and
3700 are based on a new Canon engine similar to that of the HP
4600. The single pass engine design enables the new printers
to deliver 12ppm and 16ppm while printing either monochrome
or color.

While both machines use the same black cartridge, the color
cartridges are different. The black cartridge, Q2670A, yields
6,000 pages at 5 % coverage. The color cartridges for the
HP3500, Q2671A (cyan), Q2672A (yellow), Q2673A (magenta),
yield 4,000 pages at 5 % coverage. The HP3700 color car-
tridges, Q2681A (cyan), Q2682A (yellow), Q2683A (magenta),
yield 6,000 pages at 5 % coverage. All the internal components
are the same for all the cartridges the only difference is the chip
and the cartridge fill weights.

Hp 3500 3700

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