HP 4L_4ML_4P_4MP.pdf

PXTECH

Te c hnical Instructions

Printers

OEM Info

Tools

CORPORATE

LOS ANGELES

T 800 394.9900

818 316.0656

F 800 394.9910

818 313.9568

Apple Personal

Laserwriter 300-320

Canon LBP-4U, 430, 430W, PX

PXII. P90

Canon Laserclass

L5000/5500 (FX2)

Canon Laserclass

L7000 Series (FX2)

HP C2003A Laserjet 4L,

4ML, 4P, 4MP

LaserMaster Winprinter 1000

Part Number: 92274A

Gram Load: 160 grams

Yield @ 5%: 3000 pgs

Pages/Min.: 4ppm

Resolution: 300/600 dpi

Needle Nose Pliers

#1 Phillips Screwdriver

1/8” Flat Blade Screwdriver

Damp Cloth

Vacuum or Compressed Air

Conductive Grease

Anhydrous Isopropyl Alcohol

Cotton Swabs

SX Screws

PX Seal

PX Toner, 160 Grams

ATLANTA

T 877 676.4223

770 516.9488

F 877 337.7976

770 516.7794

Photo 1a

Remanufacturing Procedure

The following procedure can be used to

remanufacture the HP4L and 4P car-

tridges as well as the Canon FX-2.

Step 1

As furnished by the OEM, most 4L/4P/FX-

2 cartridges are held together with plastic

clips, and one screw.

(See Photo 1a)

If the cartridge has been remanufactured,

it may have up to seven screws (usually

Phillips head) on the outside that must be

removed first.

Some of the possible screw positions are

pointed out.

(See Photo 1b)

Also note the toner sensor window

shown (center arrow) is one of the two

differences between the HP4L and the

FX-2. The other change (end arrow) is a

slight modification of the cartridge side

plate.

(See Photo 1c)

DALLAS

T 877 499.4989

972 840.4989

F 877 774.1750

972 840.1750

MIAMI

T 800 595.4297

305 594.3396

F 800 522.8640

305 594.3309

Photo 1b

NEW YORK

T 800 431.7884

631 345.0121

F 800 431.8812

631 345.0690

TORONTO

T 877 848.0818

905 712.9501

F 877 772.6773

905 712.9502

Photo 1c

SYDNEY

T 02 9648.2630

F 02 9648.2635

Brand names and trademarks are the

properties of their respective holders

and are for descriptive use only.

Te chnical Resource Center:

Toll Free:

800 394.9900

Website:

www.futuregraphicsllc.com

PX Technical Instructions

Photo 2

Step 2

Place the cartridge, top down, on the

work table with the drum up and the

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.

Photo 7

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.

(See Photo 6)

Need trust-worthy, detailed Technical

Instructions for another engine?

V isit: www.futuregraphicsllc.com

Step 7

Now, work your way around the cartridge,

carefully pry the two halves apart.

Separate the waste hopper from the toner

hopper. Toner will spill everywhere.

(See Photo 7)

PX Technical Instructions

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-

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

PX Technical Instructions

Photo 12

Step 12

Clean the PCR with a damp cloth (or Nu-

Finish if preferred) and allow to dry. Clean

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)

Need trust-worthy, detailed Technical

Instructions for another engine?

V isit: www.futuregraphicsllc.com

PX Technical Instructions

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

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

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