The document provides technical instructions for remanufacturing toner cartridges for various printer models, including the HP 4L, 4P, and Canon FX-2. It outlines a 9 step process that involves removing screws and plastic clips to separate the cartridge into its main components in order to clean it and replace the toner. Key steps include releasing the drum cover, separating the toner and waste hoppers, removing the toner mixer gear, and cleaning sensor windows before resealing the cartridge.

1. PXTECH
Technical Instructions Printers OEM Info Tools 1
Apple Personal Part Number: 92274A Needle Nose Pliers
CORPORATE Laserwriter 300-320 Gram Load: 160 grams #1 Phillips Screwdriver
LOS ANGELES, USA Canon LBP-4U, 430, 430W, PX Yield @ 5%: 3000 pgs 1/8” Flat Blade Screwdriver
US 1 800 394.9900 PXII. P90 Pages/Min.: 4ppm Damp Cloth
Int’l +1 818 837.8100
FAX 1 800 394.9910 Canon Laserclass Resolution: 300/600 dpi Vacuum or Compressed Air
Int’l +1 818 838.7047 L5000/5500 (FX2) Conductive Grease
ATLANTA, USA Canon Laserclass Anhydrous Isopropyl Alcohol
US 1 877 676.4223 L7000 Series (FX2) Cotton Swabs
Int’l +1 770 516.9488 HP C2003A Laserjet 4L, SX Screws
FAX 1 877 337.7976 4ML, 4P, 4MP PX Seal
Int’l +1 770 516.7794
LaserMaster Winprinter 1000 PX Toner, 160 Grams
DALLAS, USA
US 1 877 499.4989
Int’l +1 972 840.4989
FAX 1 877 774.1750
Int’l +1 972 840.1750
MIAMI, USA Photo 1a
US 1 800 595.429 Remanufacturing Procedure
Int’l +1 305 594.3396
FAX 1 800 522.8640 The following procedure can be used to
Int’l +1 305 594.3309
remanufacture the HP4L and 4P car-
NEW YORK, USA tridges as well as the Canon FX-2.
US 1 800 431.7884
Int’l +1 631 345.0121 Step 1
FAX 1 800 431.8812
Int’l +1 631345.0690 As furnished by the OEM, most 4L/4P/FX-
SANFORD,USA 2 cartridges are held together with plastic
US 1 800 786.9049 clips, and one screw.
Int’l +1 919 775.4584
FAX 1 800 786.9049 (See Photo 1a)
Int’l +1 919 775.4584
If the cartridge has been remanufactured,
Photo 1b
TORONTO, CAN it may have up to seven screws (usually
CAN 1 877 848.0818 Phillips head) on the outside that must be
Int’l +1 905 712.9501
FAX 1 877 772.6773 removed first.
Int’l +1 905 712.9502
Some of the possible screw positions are
BUENOS AIRES, ARG pointed out.
ARG 0810 444.2656
Int’l +011 4583.5900 (See Photo 1b)
FAX +011 4584.3100
Also note the toner sensor window
MELBOURNE, AUS shown (center arrow) is one of the two
AUS 1 800 003. 100
Int’l +62 03 9561.8102 differences between the HP4L and the
FAX 1 800 004.302 FX-2. The other change (end arrow) is a
Int’l +62 03 9561-7751
slight modification of the cartridge side
SYDNEY, AUS Photo 1c plate.
AUS 1 800 003.100
Int’l +62 02 9648.2630 (See Photo 1c)
FAX 1800 004.302
Int’l +62 02 9548.2635
MONTEVIDEO,URY
URY 02 902.7206
Int’l +5982 900.8358
FAX +5982 908.3816
JOHANNESBURG, S.A.
S.A. +27 11 974.6155
FAX +27 11 974.3593
E-mail: info@futuregraphicsllc.com Website: www.futuregraphicsllc.com

2. 2 PX Technical Instructions
Photo 2
Step 2
Place the cartridge, top down, on the
work table with the drum up and the
Notes drum gear to the right. With a small flat
blade screwdriver release the first clip in
the square hole in the lower right corner
facing you.
(See Photo 2)
Photo 3
Step 3
Next, slightly rotate the cartridge clock-
wise with the drum gear closer to you and
pry loose the clip below the metal drum
shaft.
(See Photo 3)
Photo 4
Step 4
Pry the two halves apart slightly. Now,
rotate the cartridge counter-clockwise
back to its original position and pry loose
the four clips facing you (start with the one
on the drum gear end). This can be done
with two small flat blade screwdrivers to
avoid breaking the plastic cartridge clips.
(See Photo 4)
Photo 6
Step 5
Rotate the cartridge counter-clockwise
again until the drum gear is away from you
and pry loose the clip on the end toward
you. This releases the last clip. Be careful,
toner may spill out.
Step 6
Pull the drum coverall the way back and
then flip it down so it tucks in behind the
toner hopper and stays out of the way.
Photo 7 (See Photo 6)
Step 7
Now, work your way around the cartridge,
carefully pry the two halves apart.
Separate the waste hopper from the toner
Need trust-worthy, detailed Technical hopper. Toner will spill everywhere.
Instructions for another engine?
(See Photo 7)
Visit: www.futuregraphicsllc.com

3. PX Technical Instructions 3
Photo 8
Step 8
Remove the toner mixer drive gear and PCR
from the toner hopper and set them aside.
Dump the toner out and clean parts thor- Notes
oughly with a vacuum or compressed air.
(See Photo 8)
Photo 9
Step 9
Remove the fill plug. The cartridge must
be sealed before toner can be installed.
Clean the surface to be sealed with cot-
ton swabs and alcohol.
(See Photo 9)
Photo 9A
Step 9A (FX-2 ONLY)
Clean both toner sensor windows inside
and out (all four surfaces) with a cotton
swab and alcohol.
(See Photo 9A)
Photo 10
Step 10
Remove the non-stick backing from the
adhesive seal and lay it in place with the
tail away from the plug end.
(See Photo 10)
Photo 11
Step 11
Fill the hopper with toner using a funnel
cap and then re-install the plug.
(See Photo 11)
Need help with a particular remanu-
facturing problem?
Call the Technical Resource Center from
8am - 5pm PST: 800 394.9900

4. 4 PX Technical Instructions
Photo 12
Step 12
Clean the PCR with a damp cloth (or Nu-
Finish if preferred) and allow to dry. Clean
Notes the PCR saddles with a cotton swab and
alcohol. Now reinstall the PCR and toner
mixer drive gear. Set the toner hopper
aside until Step 25.
(See Photo 12)
Photo 13a
Step 13
Using your #1 Phillips screwdriver,
remove the two screws holding the wiper
blade to the waste hopper.
(See Photo 13a)
Now pry the wiper blade toward the non-
gear side in order no to break the plastic
guide. Then remove the wiper blade.
(See Photo 13b)
Photo 13b
Photo 14
Step 14
First, thread an SX screw into the drum
axle on the gear end. Next, grip the screw
head tightly with needle nose pliers and
pull the axle out using a side-to-side
motion.
(See Photo 14)
Photo 15
Step 15
Rotate the waste hopper end-for-end and
pry down lightly on both metal contacts.
(See Photo 15)
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Instructions for another engine?
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5. PX Technical Instructions 5
Photo 16
Step 16
Pry off the large white side plate. Locate
the metal mag roller contact plate and
drum ground contact arms. Clean off the
Notes
old conductive grease from these sur-
faces and replace it with new conductive
grease, or leave the parts dry.
(See Photo 16)
Photo 17
Step 17
Remove the drum, wrap it in protective
cloth or paper, and set it aside until Step
22.
(See Photo 17)
Photo 18
Step 18
Push down and forward on the white
mag roller guide plate latch. Push the
mag roller forward and lift out. Clean with
isopropyl alcohol or commercial mag
roller cleaner. Clean mag roller contacts
with a cotton swab and alcohol. Clean
the doctor blade lightly with isopropyl
alcohol.(See Photo 18)
Photo 19
Step 19
Re-install the mag roller assembly-gear
end first- with the spring of the guide
plate facing toward the slot. Snap it into
position.
(See Photo 19)
Photo 20
Step 20
Clean the drum with isopropyl alcohol,
allow to dry, and cover lightly with
padding powder. Press the drum down
into position with the drum and mag
roller gears meshed.
(See Photo 20) Need help with a particular remanu-
facturing problem?
Call the Technical Resource Center from
8am - 5pm PST: 800 394.9900

6. 6 PX Technical Instructions
Photo 21
Step 21
Re-install the large white side plate with
Notes its metal drum ground contacts and mag
roller bias contact, aligning the flat side of
the magnet shaft with the flat portion of
the side plate opening. Reposition and
snap both metal contact points into
place.
(See Photo 25b)
Step 22
Re-install drum axle on the drum gear side by pressing it flush with your thumb.
Step 23
Slide the wiper blade down into position and re-install the two Phillips screws. Turn
the drum 360 degrees to remove excess padding powder.
Photo 22
Step 24
Return to the toner hopper, make sure the
tail end of the seal is tucked through the
access slot, pull it too the rear with your
right hand.
(See Photo 24)
Photo 23
Step 25
Align the two halves (toner hopper and
waste hopper) and press them together
until all eleven clips snap into place..
(See Photo 25)
Install one screw in the top left corner of
the cartridge, as shown at the arrow on
the first photo in this guide.
NOTE: If you have broken off any clips or
are worried about leakage, you may use
up to seven SX screws to hold the two
halves together.
Step 26
Unfold and return the drum cover (shut-
ter) back to its original position.
NOTE: Both the HP4L and the FX-2 can be
tested in a 4L or 4P printer, but the HP4L
will not fit into an FX-2 fax machine.
Future Graphics (FG) is a distributor of compatible replacement parts and products for imagining equipment. None of FG's
products are genuine OEM replacement parts and no affiliation or sponsorship is to be implied between FG and any OEM.
E-mail: info@futuregraphicsllc.com Website: www.futuregraphicsllc.com