Do-it-yourself xerox phaser 3121 printer repair

Xerox Phaser 3121 - printer, A4, black and white laser printing.

If your Xerox Phaser 3121 printer starts to feed poorly from the tray, this is due to wear on the paper feed roller and the brake pad under the roller.
The paper feed roller is covered with a small pattern, which is erased during operation from contact with paper, the brake pad also wears out. The paper feed roller rotates - it slips on the paper and does not feed it into the printer.
To prevent paper jams in the Xerox Phaser 3121 printer, the machine must be serviced by replacing the paper feed roller and, if necessary, the brake pad.
You can replace the rubber pad on the paper feed roller separately.
Catalog number of the attachment (rubber band) on the gripper roller - JC72-01231A | YC72-01231A.

Our service center can perform
printer repair Xerox Phaser 3121 with replacing the paper feed roller.

Prices for printer repair services in our company.

Our service center is professionally versed in the repair and maintenance of Xerox printers and MFPs.

Urgent repair of Xerox office equipment in Moscow on Paveletskaya.

Attention! The text in this document was automatically recognized. You can use the Original mode to view the original page.

To reinstall the printer driver, see

p. 2.17. Try to print a test

Check the LCD on the control panel and

find out if the printer has

In most applications, the source is

paper is selected on the tab

printer properties. Choose the right one

Remove paper from the tray and reload it

Remove excess paper from the tray.

Use only paper suitable for

to its specifications for the printer.

Simplify the page or try

adjust the print quality settings.

Printer maximum print speed

is 16 (A4) or 17 (Letter) pages per

XEROX PHASER 3121 Mfp Repair

XEROX PHASER 3121 printer service and repair in Moscow and the region.

XEROX PHASER 3121 Printer Repair

Is your XEROX PHASER 3121 printer broken?
There is a solution!
It often happens that the printer stops working properly and starts printing poorly, or not printing at all. What to do in this case?
You need the help of a professional technician, knowledgeable in his field, who will diagnose and repair your XEROX PHASER 3121 printer.
Our technical center deals with just such breakdowns. We will make your XEROX PHASER 3121 printer working as soon as possible. Just dial and contact us!
XEROX PHASER 3121 Printer Maintenance
The procedure for diagnostics and repair of the XEROX PHASER 3121 printer
Service for your Xerox printer includes replacement only with quality replacement parts from the manufacturer.

The xerox phaser 3121 printer does not work.
the red indicator is on, which usually lights up when there is no paper or toner. I bought a new cartridge. It didn’t bring any results.
you turn it on, it rustles with the wheels, the indicator is green, but after half a minute it is again red.
when the door is opened, access to the cartridge type works, buzzes. then changes his mind.

What about him?
and what can be done?

start by checking the sensors

the same printer. The trouble is a little different:
When turned on, the red and green indicator constantly blinks.
warming up does not occur, from the printer a sound similar to a relay with periodic blinking.
Where to dig and what's the problem?

with what period (sec) blink

Well this is how such a frequency was tracked by eye?
does it start if the lid is opened?

there is also no reaction to the on / on button near the LEDs.
the computer is not detected
the ML-1710 sticker on the formator board contains everything on Samsung chips.

with the frequency of nakosyatsil sori. flares up in about a second.
Blinking starts immediately after turning on the toggle switch. does not react to anything ..

check the stove, thermal

checked, short. but something dangles inside.
and still did not quite understand where 2 more wires go on the stove.

on the thermal sensor
short how many (Ohm), on thick wires

stove resistance 7.4 ohm

I did not notice that the computer is not detected
maybe the formatter is dead

ADDED Dec 25 2009

there is a working Samsung ML1520.
In principle, you can try to put a stove and a formatter from him.
Just give it a ride?
As far as I understand, they are the same with Xerox.

working stove means
Xerox is a Samsunga clone

where to dig further? Change the formatter?

And I would also like to know the control strains and control points.
The power supply unit can take out the brain.

Well, now the joke is interesting.
tried on a naprugu on 3 diodes near a trance.
Meryl relative to the hull.
napruga on all 3 diodes jumps and not bad.
D101 18-10V
D102 18-10V
D103 1.6-0.9V
The strap jumps to the beat of the LEDs. 1001 and 102 seem to be in parallel (if memory does not change)
But even if the printer goes into protection - why such drawdowns?

I asked, if you open the front cover, it stops blinking?
The power supply unit can also be disconnected from the load to check the voltages

In general, I have it disassembled

To the front cover and paper tray sensor - 0 response.

The power supply unit lies separately, the sponge also jumps.

Well, now to deal with him, what kind of PWM is there 0565?

there is a schematic diagram from 1710, if there are differences, then they should be unprincipled

Thank you. It remains only to find its analogue.

There are no short exits,
The optocoupler is live.
Accordingly, PWM simply does not swing trance.

I checked the capacitance, network and especially C7

Replaced C7 - to no avail.
On the bridge, the napruga jumps a little and is greatly underestimated 250-260 V.
So I tend to shim more and more. Since there is nothing special to squander in terms of power.
Conder 100x400 was replaced by 200x400. the effect is the same.
I checked the diodes in the bridge, they are all alive.
Soldered L1 - the same thing.

In the corner of the board there is a mikrik of the front cover - close it and check the secondary power supply again for a shorty - it happens that a direct transistor for a high power supply dies.

unfortunately the topic will have to be closed.
I lost the state of the cartridge - it's in the bucket.
Photo drum - scratched 600r
Squeegee - curved 350r
transfer shaft - scratched 300r
So if I don’t find another cartridge in the near future, the repair will not make sense.
By the way, I checked the transistor - alive.
Somewhere in the internet I read that sometimes LM dies. I will try to vypayat it to start without it.

• Leave a request for printer or MFP repair
• During the initial survey, the manager assesses the degree of breakdown and advises you on the feasibility of repair, appoints the date and time of the courier's departure, or waits for you at our office
• We carry out full diagnostics of faulty equipment - we identify the cause of the malfunction and agree on the cost of services for the repair of office equipment, as well as the deadlines
• We carry out a full range of works for the provision of agreed services within a specified time frame
• You receive equipment, ready to work, personally in your hands, or through a courier service.

Repair of the Phaser 3121 printer / mfp takes place in the shortest possible time at the lowest prices. You can pay in two ways: in cash or by bank transfer. Our company works without prepayment. We can deliver a full set of necessary documents by courier the next day.

If your printer is behaving suspiciously, do not hesitate to contact us!

The most common reasons for calling the wizard: Phaser 3121 jammed the paper, the printer prints in stripes, does not pick up the paper, when it is idle, produces sheets with repetitive print sectors, or Phaser 3121 smears the image.

The following cartridges are compatible with the Phaser 3121:

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Service list

Warranty for work

Cost, rub.)

Repair time interval

Departure of the master when ordering repair

Diagnostics when ordering repair

Prevention of stable work

Replacing the high voltage board

Replacing or refurbishing the main board

Replacing the low voltage board

Replacing the Print Head

Replacing the printhead ribbon cable

Elimination of software failures, errors

Solving any other printer problems:

• does not turn on
• chews, jams paper, turns paper into an accordion
• prints dirty, stains paper
• error code no. X, gives an error
• not recognized, the computer does not see it
• prints with horizontal or vertical stripes
• prints in blue, not color, in black and white (b / w)
• does not see, does not recognize the cartridge
• does not see, does not recognize paper
• freezes,
• skew of the sheet when printing,
• stopping the sheet in the middle when printing
• makes strange sounds when typing
• installation
• does not print
• does not print in black
• does not print in blue
• does not print in yellow
• does not print in red
• does not print green
• does not print in orange
• does not print cyan
• does not print purple
• does not print magenta, magenta, pink
• prints blank sheets, in white
• there is a strong smell
• bifurcates, layers, overlays an image
• prints by smearing paint
• any other problems

We repaired the HP LaserJet Pro P1102 laser printer: began to chew paper and grab several sheets at once. Moreover, which is convenient, the foreman came directly to the office. Actually, that's why they called. read full review

Free visit of the printer repair technician within 3 hours from the receipt of the order.

The engineer diagnoses the Xerox Phaser 3121 printer. He will identify the cause of the malfunction, estimate the cost and time of repair.

If you decide to repair the printer, the engineer gets to work immediately. Payment (even by bank transfer) is made after completed repairs.

If for some (any) reason you refuse to repair, you will not have to pay anything, since the exit and diagnostics in our company are absolutely free. We provide such conditions for the repair of the Xerox Phaser 3121 printer in Moscow. The Moscow region is served on a contractual and paid basis.

To the device Xerox Phaser 3121 suitable cartridges:

Need to get your Xerox Phaser 3121 printer repaired? We will help!

Repair of the Xerox Phaser 3121 printer takes no more than 2 hours (in our office) (by agreement, there is a trip around Moscow). We use original components. We cooperate with all leading suppliers of spare parts. We guarantee quality.

Xerox Phaser 3121 Printer Repair

In our service center you can order Xerox Phaser 3121 printer repair with a quality guarantee. Repair work is carried out at the request of the client on site or in a workshop. We recommend that you repair the device where it is installed, at home or in the office. Each transportation has a negative impact on the safety of equipment weighing almost 10 kg.

When a printer needs repair

• During servicing, the wizard revealed serious defects.
• The print quality is deteriorating.
• Excessive noise, vibration, unpleasant odor appear.
• After an unsuccessful attempt to figure it out on my own.

The majority of Russian users regularly order refueling of the cartridge.During this relatively frequent procedure, other malfunctions are diagnosed. If problems are identified, the owner of the equipment is offered to fix them immediately. Having obtained consent, they fulfill Xerox Phaser printer repair ... Usually, the drum of the laser device is replaced every 3 refills. Masters bring other demanded spare parts with them just in case. When calling a specialist, you should accurately indicate the model of the printing technique.

Gaps on the printed pages are likely due to low toner. Sometimes the clarity is lost, the whole text is printed, but it looks faded. Time to refill the 3,000-page cartridge at 5% coverage. The page counter coming to the end confirms the problem. But there are such defects as irreparable skew of lines, imposition of the next on the previous one. They are obviously associated with mechanical damage to parts. The use of the printing device must be stopped immediately and a specialist must be called in.

Ditto for unusual sounds, strong shaking, sparking or smoke. While waiting for the wizard, the power cord is completely removed from the outlet. Modern electrical circuits that are "pending" do not guarantee complete disconnection of the contacts when the buttons are pressed. It is good if there is an additional mechanical switch between the printer and the mains.

After reading "recipes" on the Internet, many users try to repair the equipment on their own. With a laser, this rarely goes without complications. A confident repair requires solid experience, professional tools and original spare parts. As soon as the home craftsman realizes that the situation is out of control, it is advisable to immediately call a professional. But it is better not to start "training", especially when the device is expensive. Asking for Xerox printer repair price much less than the cost of a new one.

Common problems during printer repair

We've already mentioned cartridges and drums. The following problems also often occur:

• spots on the sheet - at a certain interval or in any order;
• curve printing or with uneven density;
• gray background instead of white;
• repetition of images;
• toner does not adhere well to paper;
• sheets are jammed and jammed.

Distinguish physical problems from software problems. Certain defects in monochrome GDI devices are caused by abnormalities in the driver or operating system. Finding out the reasons quickly and accurately depends on the experience of the master. In difficult cases, conclusions are drawn from the test results in various operating modes.

The incorrect software is reinstalled using the latest version from the manufacturer's website. It is more difficult when the Windows printer runs under Linux, but in this case, professionals will find the latest generation of suitable driver.

With physical wear of parts Xerox Phaser printer repair consists in replacing them.

Most often, Phaser 3121 replaces:

• brake pad for stopping paper sheets;
• paper feed rollers;
• thermal film;
• rubber shaft.

In order for the most loaded components to wear out less, you need to use only high-quality consumables recommended by the manufacturer of the equipment. This applies to both ink and paper. Only strictly defined grades of toner, Japanese originals or absolutely compatible analogs are suitable. Their chemical composition, ratio of components, size and shape of particles are safe for all parts. Counterfeit or unsuitable toners can be very harmful.

The thickness and coating of the paper must be within acceptable limits. Excess chalk remains on the rubber parts and clogs up the moving mechanisms. A deficiency leads to excessive toner absorption. Too thick sheets will loosen even metal parts sooner or later.

Sometimes it is possible to clean the clogged areas of rubber with isopropyl alcohol. Then for the accepted in Xerox printer repair price work performance is reduced. But it is more likely that new parts will be installed instead of worn ones.

If staples do not hit the paper well, the thermal film will tear.There is a rustle when the shaft rotates, the sheets wrinkle, starting from the corner, the paint gets dirty. In severe cases, the paper is completely jammed, vertical stripes and spots occupy almost the entire surface, images are duplicated. The problem is solved by replacing the thermal film.

Inexpensive and professional printer repair

The service center specialists carry out a simple Xerox Phaser printer repair within 20-30 minutes. They diagnose all malfunctions, and offer the best option for their elimination at a price. Masters work for the result, hand over to the client "on a turnkey basis" equipment, ready for printing, after checking the functioning and printing test pages. If necessary, replenish the ink supply, install a new chip in the cartridge, reset the counter.

The customer receives a long-term guarantee. Call us by phone or order online - "Our contacts". And make sure of the qualifications of the masters, the convenience of cooperation with us. We are in favor of the feedback from the clients, who have already been repaired by the professionals.

Need Xerox Phaser 3121 Diagnostics?
Qualified repairers of the BESTCOM service center have extensive experience in diagnostics, preventive maintenance, repair and maintenance of Xerox Phaser 3121 printers. If it is convenient for you to deliver a laser printer to our service center by yourself, then Xerox Phaser 3121 printer diagnostics will be produced IS FREE ... By entrusting your printer to BESTCOM engineers, you are acting wisely!

A Guarantee is provided for all types of work. Moreover, in the event of a warranty case, you do not have to take the equipment to our hospital, all problems will be eliminated by our engineers, having gone to your office, if it is impossible to fix it on the spot, we will deliver the equipment to the hospital at our own expense, for warranty repairs, and after completion works, we will deliver back.

Diagnostics - this is work to identify the causes of a malfunction, non-working parts, blocks, units of devices (which are usually a consequence of these reasons), or determining the amount of work required to eliminate a malfunction, during which additional diagnostics may be required on site or in a hospital (as the rule is the case when there are signs of a malfunction, and there may be several reasons or the malfunction manifests itself periodically in such cases, long-term testing is required for diagnostics, as well as complete or partial disassembly of the device). As a rule, the most difficult and responsible component of office equipment repair.

Prophylaxis- standard operation, the volume and frequency of which depends on the design of the device and is defined in the service documentation from the manufacturer. Prevention is not a repair procedure; it does not eliminate malfunctions caused by worn out or damaged parts, blocks, and assemblies.

Printer repair - work to eliminate the malfunction of the apparatus with the replacement of parts and disassembly of one or more units of the apparatus.

Xerox Phaser 3121 laser printers have a variety of settings that control the printing process. Often they get confused and you just need to correct them so that the printer continues to work in the same mode. However, there are other failures, which can generally be divided into two groups: cartridge failure (70%) and printer failure (30%).

Result - a gray line appears along the printed sheet. To fix the breakage, the squeegee must be cleaned or replaced if there is no positive result.

If large spots or streaks appear on the sheet from time to time, you can try to clean the processing hopper, because Overfilling causes the toner to spill unevenly onto the paper.

Usually caused by problems with the feed roll, due to a malfunction or excessive dirt, as well as damage to the bar that guides the sheets or the entire roller unit.When sheets are jammed when leaving the device, we can talk about breakage or skewing of the rollers located in the paper ejection unit, as well as the bar that guides the sheets when they are dispensed by the printer.

The main reasons are damaged input circuits of the printer or there is no voltage in the network. Sometimes a zero response is caused by a faulty board, which is responsible for the formation of impulse currents inside the device and their subsequent distribution among the driving mechanisms. Then the solution will be to replace the board.

• Leave a request for printer or MFP repair
• During the initial survey, the manager assesses the degree of breakdown and advises you on the feasibility of repair, appoints the date and time of the courier's departure, or waits for you at our office
• We carry out full diagnostics of faulty equipment - we identify the cause of the malfunction and agree on the cost of services for the repair of office equipment, as well as the deadlines
• We carry out a full range of works for the provision of agreed services within a specified time frame
• You receive equipment, ready to work, personally in your hands, or through a courier service.

Repair of the Phaser 3121 printer / mfp takes place in the shortest possible time at the lowest prices. You can pay in two ways: in cash or by bank transfer. Our company works without prepayment. We can deliver a full set of necessary documents by courier the next day.

If your printer is behaving suspiciously, do not hesitate to contact us!

The most common reasons for calling the wizard: Phaser 3121 jammed the paper, the printer prints in stripes, does not pick up the paper, when it is idle, produces sheets with repetitive print sectors, or Phaser 3121 smears the image.

The following cartridges are compatible with the Phaser 3121:

When disassembling and assembling printer components, you must be extremely careful. The proximity of cables to moving parts makes it imperative to place them correctly. When removing items from the printer, all cables covered by this procedure should be placed as close to their original position as possible. Before removing any element, pay attention to the routing of the affected cable.

Many parts are held in place

plastic snaps that are easy to break:

To release the element that is fixed by the latch, push on its hook and move it away from the latching element.

During maintenance, you must do the following:

1. Check that there are no documents left in memory.

2. Be sure to remove the xerox 109r00725 cartridge before disassembling.

3. Disconnect the power cord.

4. The work surface must be level and clean.

5. Use only approved components.

6. Do not use excessive force when releasing or securing plastic parts.

7. Make sure all items are in place.

1. Remove the paper cassette from the printer.

4. Release the latches at the front edge of the top cover.

2. Remove the front cover as shown by the arrows.

5. Remove the top cover as shown by the arrows.

6. Remove the back cover from the top cover.

1. Before removing the fuser, you must remove: - the top cover

2. Disconnect the two connectors from the board, then remove the four screws.

3. Remove the two screws and remove the thermostat from the fuser.

4. Remove the two screws and remove the halogen lamp from the heat roller.

5. Unscrew the screw and remove the idler gear.

6. Remove the four screws and split the fuser in two.

7. Remove the thermistor from the fuser cover.

1. Before removing the exit roller, you must remove:

2. Remove the exit roller gear, bearing and exit roller.

Exit Roller Gear

1. Before removing the laser assembly, you must remove: - the top cover

2. Remove the two screws and disconnect the connector on the printer frame.

3. Remove the LED PWB board as shown below.

4. Disconnect the two connectors from the laser assembly.

5. Remove the four screws and take out the laser assembly.

1. Before removing the fan, you must remove: - the top cover

2. Disconnect the connector from the SMPS and remove one screw. Then remove the fan.

one.Before removing the drive unit, you must remove: - the top cover

2. Remove the six screws securing the drive assembly.

3. Disconnect the connector from the drive assembly.

1. Before capturing the screen, you must:

- disconnect the fuser connector

2. Remove the fourteen screws securing the shield and disconnect all connectors. Then remove the print device shield assembly.

1. Before removing the main PWB, you must remove:

- screen assembly of the printing device

2. Disconnect the connector and remove the five screws securing the main PWB. Then remove the main PWB as shown by the arrow.

1. Before removing the SMPS, you must remove:

- screen assembly of the printing device

2. Disconnect the connector and remove the three screws, then remove the entry bracket.

3. Remove the screw and disconnect the connector from the main PWB.

4. Unscrew the three screws and remove the SMPS.

1. Before removing the transfer roller, you must remove:

2. Remove the three screws and remove the transfer assembly grounding bar.

Transfer unit grounding bar

3. Disconnect the connector on the PTL holder, then remove the PTL holder and PTL lens as shown in the figure.

4. Disconnect the clutch and remove it. Then take out the transfer roller as shown in the illustration.

1. Before removing the feed roller, you must remove:

2. Pull out the pressure roller bushing and remove the pressure roller as shown in the figure below.

Remove the feed gear assembly 1 as shown in the illustration below.

3. Remove the three screws securing the feed plate and remove the plate.

4. Remove the pinch roller gear and feed unit 2 gear.

6. Remove the Feed Roller and Feed Roller 1 as shown in the illustration below.

1. Before removing the pickup roller, you must remove:

- Screen assembly of the printing device

2. Remove the pickup roller gear assembly as shown in the illustration below.

3. Remove the pick assembly as shown in the illustration.

Pickup Roller Gear Assembly

1. Before removing the solenoid, you must remove:

- Screen assembly of the printing device

2. Remove the two screws, then remove the manual feed solenoid and pick roller solenoid.

The Xerox Phaser 3140 printer is a computer peripheral equipment that has proven its usefulness in practice for many users. However, some defects, which sometimes have to be encountered, spoil the colorful life of this printing apparatus. One of these defects is a document printing stop halfway through the track and an increased “clicking” noise of the paper feed path.

The built-in automation of the printer reacts to such a malfunction in an interesting way. The status light on the top panel glows orange (indicating a paper jam) and stays on until the user turns the Xerox Phaser 3140 off and back on.

When the machine is turned on again, the alarm is cleared, printing continues, but after the first sheet of paper, a second (blank) sheet appears in the exit tunnel. At the same time, the paper feed path is completely clean, that is, there is no talk of paper jams. How to be in such a situation?

There are several options for solving the problem:

• start printing by placing only one sheet of paper in the tray at a time;
• send the printer to the workshop for repair;
• repair the device with your own hands.

Obviously, the first option for operating a faulty printer is extremely inconvenient for the user. The second option is unreasonably expensive from a financial point of view.

The third option excludes both the first and the second, but requires some knowledge in the field of mechanics. In particular, you need to know how to disassemble and reassemble the Phaser 3140 printer. But the service manual will always help in this matter.

The purpose of disassembling the apparatus, in this case, is to gain access to the working parts of the printer, which are called "solenoids". There are two of them in the printer.

The first solenoid controls the paper feed operation, the second solenoid controls the paper pick up operation.

The printer solenoid is a miniature replica of an electric magnetic starter. When voltage is applied to the coil, a metal plate is attracted by a magnetic field

It is due to the malfunction of these two structural elements that the noted malfunction appears.In turn, the disruption of the normal operation of the solenoids is facilitated by softening pads, which the manufacturer places on the surface of the lever plate (as a shock absorber).

Over time, the material of the gaskets loses its elasticity and acquires the properties of a sticky material. When the solenoid is triggered, the lever plate is attracted by the magnet and touches the same gasket with its surface.

At the moment of rebound, the sticky pad does not immediately "release" the plate, as a result of which the operation cycle of the solenoid is disrupted and, as a consequence, the operation of the printer as a whole. The same "under-printing" defect appears.

Soft gaskets on the solenoids of the printer lose elasticity over time, decompose, become a sticky mass

DIY repair of solenoids is accompanied by relatively simple steps. It is necessary to remove the solenoids, remove (clean) the shock-absorbing gaskets from the surface of the solenoid plates and carefully wipe their location with ethyl alcohol.

Then reinstall the solenoids and reassemble the printer in reverse order. All that remains is to test the normal operation of the Xerox Phaser 3140 printer, which will serve users for more than one year.

In addition to the topic of repairing printers for the Xerox Phaser 3140 model, it will not be superfluous to analyze the repair of the related model Phaser 6000.

The printer of the same company, but of a different, more advanced model, is also not without problems in operation. Some of the errors are traditionally displayed on the control board.

This printing apparatus seems to be a more perfect design compared to the previous one. However, despite all its perfection, users cannot avoid printing errors.

Let's consider a traditional list of those faults that we encounter most often.

The exclamation mark problem is solved in this case easily with the help of two ordinary cotton swabs. The user needs to open the rear cover of the Xerox Phaser 6000 printer, carefully inspect the wall of the feed mechanism.

You need to find the drum window, gently insert a cotton swab and then in a circular motion without pressing, clean the inner area of ​​the window from the toner

Search target - two rectangular holes (drum windows). Having found what you are looking for, gently deepen a cotton swab and clean the inner area of ​​the toner with light circular motions. Everything. You can safely turn it on.

Malfunctions and what we need to learn about this printer

1 Long warm-up 2m 28s

2 does not pick up paper

• Disassembly of the printer and complete prevention
• Location of 5 sensors

We take the bottom of the front cover and pull it to the side, then remove it from the mount, then move the cover to the other side and it slides off the second mount

Then povalet's try a printer to your back and unscrew the 4th screws

Then remove the back cover

The back cover is removed carefully as there is a fan on it

After removing the back cover from it, you can pull out the fan to clean it from debris

We turn the printer towards us in front and unscrew the 2 screws

Removing the top cover of the printer

Then we remove the side covers, each cover is snapped into 5 latches

Then we take out the manual feed tray

Remove the paper pusher

After you have removed all the plastic, you can safely go to wash it

Go to the power supply circuit

Removing the power supply circuit from the Xerox Phaser 3125 printer

Then we unscrew all the fasteners on which the circuits are located

Then we remove the power supply circuit for this

Then we get to the capacitor and replace it

We put the scheme back

This completes the work with the power supply, go to the Fuser module (stove)

Removing, disassembling, cleaning, assembling the Fuser unit (fuser) of the Xerox Phaser 3125 printer

Removing the stove

Dismantling the stove

After removing the side fasteners, take out the heating lamp

Next, remove the top cover of the stove

Next, we see the state of the stove

After cleaning the upper part of the stove, go to the lower

Then, when the stove was disassembled, we cleaned it of debris, we checked the condition of the bushings so that there were no cracks on them, strong abrasions, the condition of the rubber and Teflon shaft, we began to assemble the stove.

After cleaning, we prepare the back side of what to put on the bottom

We tighten our 4th screws and this is where we finished with the stove.

We pass to the back of the printer.

We take out the transfer shaft, clean it and lift it, look at the state, put it back

Replacing the gripper roller and brake pad, checking the solenoid.

Next, we collect in reverse order.

When replacing the roller, you need to check the operation of the solenoid, if necessary, replace the gum on it or just remove it altogether.

We checked it again if it does not stick, then everything is in order, put it back.

After the solenoid, gear and clutch have been installed, this assembly is ready.

How to get the shaft with two rubber rollers?

Laser unit

All parts of the printer were cleaned, defective parts were replaced, you can safely assemble.

We raise the contacts above the lid, first put the left side then by pressing to the left as the arrows show, the right side will also enter

We tighten the 4th screws

Next, we fix the stove, the stove is put on from the right corner and fixed on 4 screws, and don't forget about the green wire.

Then the fasteners of 2 circuits, when you put them on, do not forget to lower the paper passage sensor down. The fasteners are fastened with 6 screws, also do not forget about the green wire.

Then we put on the side covers.

Fasten the top cover in reverse order.

We attach the back cover. Do not forget to shove the wire from the fan.

So that the edges of the side covers go under the edge of the back cover

We put in a paper pusher with two springs, a paper tray and put on the front cover for this, the printer assembly is finished.

After you have inserted the cartridge and checked the operation of the printer, you can tighten the 4 screws on the back cover and 2 on the front.

Front Cover Sensor - If the front cover is opened, the printer will not work.

Top Cover Sensor - If the top cover is opened, the printer will not work. Located on the power supply diagram.

Paper advance sensor - This sensor is triggered when paper is passed through it, located on the back of the printer.

Cartridge present sensor: Located in the upper corner on the back of the printer.

Paper present sensor: Located at the bottom of the rear wall.

On this all write questions about this printer, we will solve them together.