HP4000TECH
Technical Instructions Printers OEM Info Tools 1
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HP4000/4000N/4000T/
000TN/4050/4050N/4050SE/
4
4050T/4050TN
Canon LBP-1760MS/3175/
175MS (FX-6)
3
Canon Laserclass 3170/3175
Photo 1
Photo 2
Photo 3
Part Number: C4127A
Gram Load: 305 gms
Yield @ 5%: 6,000 pgs
ages/Min.: 17
P
Resolution: 300/600/1200dpi
Part Number: C4127X
Gram Load: 500 gms
Yield @ 5%: 10,000 pgs
Pages/Min.: 17
Resolution: 300/600/1200dpi
Step 1
Place the cartridge top down, drum side
up, on the table with the metal drum axle
facing you. With a Phillips #1 screwdriver,
remove two screws.
(See Photo 1)
Step 2
Pull the drum axle (metal side plate) away.
(See Photo 2)
Step 3
e the axle aside
lac
P
back, and tape it or hold it with your
thumb and grab the drum by the small
Lift and pull the drum out, being
gear end
careful not to catch the large drum gear
on the corner of the recovery blade,it may
end or tear the blade, causing future
b
toner leaks.
(See Photo 3)
Wrap the drum if it is to be used again,and
place it off to the side.
.
#1 Phillips Screwdriver
mall Flat Blade Screwdriver
S
Needlenose Pliers
Padding Powder
Soft Lint-Free Cloth
Cotton Swabs
Conductive Grease
Punch or Bent Extraction Tool
Anhydrous Isopropyl Alcohol
Vacuum or Compressed Air
ull the dr
P
.
um shutter
E-mail: info@futuregraphicsllc.com Website: www.futuregraphicsllc.com
2 HP4000 Technical Instructions
Notes
Photo 4
Photo 5
Photo 6
S
tep 4
Next, using a pair of needlenose pliers,
grasp the PCR by the metal shaft, remove
t, and place it off to the side as well.
i
See Photo 4)
(
Step 5
You can now remove the two pins that
hold the cartridge together. These are
tapered pins pushed in from the outside,
so they must be removed from the inside
of the cartridge. With the drum shutter
held back, use a long punch or bent
extraction tool, and tap, then press, the
tapered pins out from the inside on both
ends of the cartridge.
(See Photo 5 and 6)
The OEM pins can be reused during
re-assembly, or after-market pins which
have a shoulder (allowing them to be
removed from the outside) can be used
instead. Set the toner hopper aside for
now.
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Instructions for another engine?
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Photo 7
Photo 8
Step 6
Hold the waste hopper with the wiper
, and remove the two
blade facing y
ou
Phillips head screws holding the wiper
blade.
(See Phot
o 7)
Step 7
Lift the wiper blade out and away. Dump
out all waste toner from the hopper, being
eful not t
ar
c
o damage the r
or foam seal (on the upper back of the
waste hopper).Clean the PCR saddles with
on swab and alcohol.
ott
a c
(See Photo 8)
ecovery blade
4 HP4000 Technical Instructions
Notes
Photo 16
Photo 17
Photo 18
S
tep 13
Next, use a Phillips screwdriver to remove
the two screws on the left (gear) side of
the toner hopper.
(See Photo 16)
Step 14
Pressing backward on the latch with a
small, flat blade screwdriver remove the
side plate. All the gears will stay attached
to the side cover and can easily be air
cleaned.
(See Photo 17)
Step 15
Remove the white plastic drive gear and
black plastic stabilizer arm from the mag
roller.
(See Photo 18)
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Photo 19
Photo 20
NOTE: Be careful not to lose the small Cshaped inner-bearing guide attached to
the stabilizer arm
(See Photo 19)
The mag roller can now be removed.
(See Photo 20)
HP4000 Technical Instructions 3
Photo 9
Photo 10
Photo 12
RIGHT
S
tep 8
Clean or replace the wiper blade and
reinstall it at this time. Clean the PCR
sing a mild soap & water.Re-install the
u
PCR, and then apply padding powder
to a new drum and install it. Be careful
when installing the drum axle that the
inner shoulder fits into the depression
around the hole in the side piece completely (See Photo 9), so as not to pinch
the waste hopper side piece against
the drum gear (See photos #10 “right”,
and #11 “wrong”). This can cause binding, gear noise and a possible “error
code 51”. The waste hopper is now finished and can be set aside.
Step 9
Take the toner hopper and place it on the
table with the mag roller side facing you.The
drum cover is attached on the left side by a
wire only, while the right side is attached by
both a wire and the curved, spring-loaded
plastic “drum cover arm”. First, lift the drum
cover arm spring and latch it on the cutout
of the arm.
(See Photo 12)
Photo 11
RONG
W
Step 12
Turn the wire back and upward
until the keyed flat piece of the
wire on the left (gear) side is
vertical and aligned with the
vertical slot on the plastic side
plate, then slide it out .
(See Photo 15)
Do not force it, as it will come
out easily when aligned
correctly. You have now completely removed the drum
cover (it is very easy to re-install
in reverse order). Set it aside
until the end.
Photo 13
Photo 14
Step 10
Next, take a flat blade screwdriver and
y the dr
pr
um arm outward until it comes
completely off of the shaft.
hoto 13)
ee P
(S
Step 11
At this point, pull out the drum shutter
bar until it is completely released from
the toner hopper.
o 14)
hot
ee P
(S
Photo 15
N
eed help with a particular remanu-
facturing problem?
Call the Technical Resource Center from
8am - 5pm PST: 800 394.9900
HP4000 Technical Instructions 5
Photo 21
Photo 22
Photo 23
S
tep 16
Remove the white plastic mag roller
guide, while noting the correct position
or re-assembly.
f
See Photo 21)
(
OTE:It will cause banding if put back on
N
wrong.
Step 17
Remove the two Phillips head screws
holding on the doctor blade.
(See Photo 22)
NOTE: These screws are longer than all of
the other screws in this cartridge and
must be used here only.
Step 18
Pry out gently on each end of the doctor
blade with a small flat blade screwdriver
to aid in removal.
(See Photo 23)
Notes
Photo 24
Photo 25
Step 19
Dump the remaining toner from the
oner hopp
t
er and vacuum or clean with
compressed air. Clean the toner sensor
with a cotton swab and alcohol.
(See Phot
o 24)
Step 20
Also vacuum or with compressed air
clean the mag roller “magnetic seals”
(indicated with arrows).
o 25)
hot
ee P
(S
N
eed help with a particular remanu-
facturing problem?
Call the Technical Resource Center from
8am - 5pm PST: 800 394.9900
6 HP4000 Technical Instructions
Notes
Photo 26
Photo 27
S
tep 21
Clean the old conductive grease off of the
mag roller bias contact plate and add a
ery small amount of fresh conductive
v
grease. (See Photo 26)
The hopper may now be filled through
the magnetic roller opening and
reassembled in reverse order.
Step 23
Complete toner hopper assembly, including reinstallation of the drum cover
assembly. With the toner hopper and
waste hopper units reassembled, test
each one for free movement and lack of
noise by turning them manually.
(See Photo 27)
None of FG's products are genuine OEM replacement parts and no affiliation or sponsorship is to be implied between FG and any OEM.
F
aphics (FG) is a distr
r
e G
utur
ibut
ompatible replacement parts and products for imagining equipment.
or of c
Technical Resource Center: Toll Free: 800 394.9900 Website: www.futuregraphicsllc.com
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