HP CF283X Guida rapida

By Mike Josiah and the Technical Staff at Uninet

Remanufacturing the

HP LaserJet Pro M201, MFP M225

series toner cartridge (CF283X)

Technical Guide

In December 2013, HP released the LaserJet Pro M201 series. The M201 laser printers are based on a 26ppm, 600 x 600dpi

(1,200dpi with Fast Res) Canon engine. The CE283X is rated for 2,200 pages.

The printer itself has a very small footprint. It’s a nice small ofce/home machine. The memory is xed and not expandable at

128MB and 256MB for the MFP machines. The recommended monthly volume is from 250 to 2,000 pages/month. The printer,

when new, comes with a starter cartridge that is rated for 1,500 pages at ve percent coverage.

So far there are six printers based on this engine: the Pro M201n, M201dw, M202n, M202dw, MFP M225dn, and the MFP

M225dw. Cartridge troubleshooting will be covered at the end of this article.

Remanufacturing the HP LaserJet Pro M201,

MFP M225 series toner cartridge (CF283X)

By Mike Josiah and the Technical Staff at Uninet

• Phillips head screwdriver

• Small common screwdriver

• Needle-nose pliers

• Jewellers screwdriver set

REQUIRED TOOLS

• Toner for use in the HP CF283X cartridge

• New drum

• Replacement chip (dedicated)

• Wiper blade

• Doctor blade

• Magnetic roller

• Sealing strip

• Cotton swabs

• Isopropyl alcohol

• Drum padding powder

• Conductive grease

REQUIRED SUPPLIES

With the pair of needle-nose pliers, release both the

hopper tension springs.

TECHNICAL GUIDE

By Mike Josiah and the Technical Staff at Uninet

Slide the waste/drum section over to the left side.

Separate the two halves.

With the handle facing you, remove the right side

screw and end cap from the cartridge. Be careful of

the drum cover spring! Remove it with the end cap.

STEP ONE

STEP THREE

On the waste/drum section, lift the drum up from the gear

side. Twist and remove from the hopper.

STEP TWO

STEP FOUR

Remove the PCR and clean with your standard PCR

cleaner.

Remove the two screws and the wiper blade.

Clean out all the waste toner from the hopper.

Be careful not to damage the recovery blade

located next to the wiper blade. If this blade is

bent in any way, the cartridge will leak. Make

sure the wiper blade foam seals are clean.

Coat the new/cleaned wiper blade with your preferred

lubricant. Install the wiper blade and two screws

Install the cleaned PCR. Place a small amount of conductive grease on to

the black holder side of the shaft.

Just a small amount of grease is more than sufcient.

STEP FIVE

STEP SIX

STEP SEVEN

STEP EIGHT

STEP NINE

TECHNICAL GUIDE

By Mike Josiah and the Technical Staff at Uninet

TECHNICAL GUIDE

By Mike Josiah and the Technical Staff at Uninet

On the toner supply chamber right side, remove the two screws and end cap.

Remove the gears from the hopper as shown; leave

the large auger gear in place.

Place the waste/drum section aside.

Place another small amount of conductive grease on to the

metal drum axle.

Install the new/cleaned drum hub side rst.

STEP TEN

STEP ELEVEN

STEP THIRTEEN

STEP FOURTEEN

STEP TWELVE

TECHNICAL GUIDE

By Mike Josiah and the Technical Staff at Uninet

Remove the doctor blade and two screws.

Remove the single screw and end from the opposite side.

Remove the magnetic roller assembly.

Be careful of the bushings! They are very fragile.

STEP SEVENTEEN

STEP FIFTEEN

STEP SIXTEEN

Clean out all the remaining toner from the hopper. Make

sure the magnetic roller seals and the doctor blade seals

are all clean.

Fill the hopper with toner for use in the CF283X cartridge.

STEP EIGHTEEN

STEP NINETEEN

TECHNICAL GUIDE

By Mike Josiah and the Technical Staff at Uninet

There are two screws holding the doctor blade in place.

The left screw is a normal thread screw; the right side

uses a left hand thread screw. Be careful not to mix them

To install a seal, remove the seal port plug, and install

the seal. Bring the tail out through the seal port hole.

Install the plug.

Install the magnetic roller black bushing side rst. Turn the

roller until the keyed end locks in place.

Install the left side end cap and screw. Make sure the

small contact piece is installed correctly on the end cap.

Install the doctor blade and two screws.

STEP TWENTY

STEP TWENTY-THREE

STEP TWENTY-ONE

STEP TWENTY-TWO

TECHNICAL GUIDE

By Mike Josiah and the Technical Staff at Uninet

Install the gears as shown.

Install the end cap and screws.

Place the drum/waste hopper into the toner hopper.

Slide it over so the round hinge pins t into their

respective holes.

Set the hopper tension springs back in place.

STEP TWENTY-FOUR

STEP TWENTY-FIVE

STEP TWENTY-SIX

STEP TWENTY-SEVEN

TECHNICAL GUIDE

By Mike Josiah and the Technical Staff at Uninet

With the drum cover spring as shown on the end cap,

install the end cap. Lift up the tail of the spring to t onto

the hopper.

Lift up the drum cover sprint tail to t as shown

on the drum cover. Install the screw into the

cover.

Replace the chip by slicing off the melted chip rails.

If the chip seems loose upon installation, you can

place small dabs of hot glue on the corners to hold

it in place.

STEP TWENTY-EIGHT

STEP TWENTY-NINE

STEP THIRTY

Repetitive defect chart

OPC drum 75mm

Upper fuser lm 57mm

Lower pressure roller 56mm

Transfer roller 39mm

Magnetic roller 34mm

PCR 27mm

TECHNICAL GUIDE

By Mike Josiah and the Technical Staff at Uninet

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