Epson t50 CISS drop is on. Epson does not see cartridges, the drop is on. One or more cartridges are not detected

Let's deal with non-detection of cartridges on Epson printers.

Far from it full list printers that are susceptible to malfunction:

(Russian model range)

Printers (4 colors): Epson Stylus T26, T27, T30, T40, C110, S22.
Photo printers (6 colors): Epson Photo R270, R290/295, R390, T50, T59, P50
MFP (4 colors): Epson Stylus CX3700, CX3900, CX4700, CX4900, TX106/109, TX117/119, SX125, SX425, SX550…
Photo series MFP (6 colors): Epson Stylus RX590, RX610/615, TX650, TX700, TX710, TX800

First, we look at the status of the monitor on the computer; we need to find out what exactly we are faced with. I do not recommend relying on the readings of the LCD displays of the MFP, since they do not contain all the information we need. There are two options:

1) One or more cartridges are not detected.

Everything is simple here - either the chips on the cartridges themselves are to blame, or there is no contact with the CSIC controller.

I’ll explain right away what it isCSIC. This is a controller of intelligent chips on cartridgesEpson. It looks something like this:

The easiest way to find out what exactly is to blame is to replace the cartridges, PZK (refillable cartridges) or CISS (continuous ink supply system).

2) All cartridges are not detected!

Possible options:

A) There is damage or lack of contact in the connectors and cables going from the carriage to the main board. In practice, this rarely happens and, if such cases do occur, it is as a result of the intervention of individuals whose hands, I apologize, are not growing at the right level. On the TX700/710/800 series MFPs, it makes sense to pay attention to the cable going to the CSIC board; it is routed separately from the entire bundle.

b) The SCIC board has failed. It is quite difficult to burn it out, but it is possible. Check to see if this controller is flooded with ink. This happens if the user does not care about the printer, or ink flows past the cartridges, or uses it for wear and tear, without caring about periodic maintenance. Non-original ink produces a lot of dust, generously staining the inside of the printer mechanism. The only way to determine whether this is true is by replacing the board. Let’s leave this option for now (there’s nothing to replace it with anyway), let’s move on.

V) There is a possibility of failure of the CHIP strip or the main SCSI CHIP if they are separate. We check by replacing the CISS. Nothing to check? Go ahead.

G) CSIC board is de-energized! those. The fuses on the main board are faulty. Let's begin to understand in detail!

First, let's look at the part schematic diagram printer main board:

Please note that power is supplied to the CSIC controller and the printer print head through a fuse. You definitely (!) need to check whether he is “alive” or not.

First you need to find the fuse itself, or fuses, on the board. They are designated as standard F1, F2, are quite small in size and are located close to the 2 power transistors that control the PG and CSIC power bus.

You can figure out for yourself how to disassemble the printer and get to the main board (BOARD ASSY MAIN).

I’ll show you using Epson TX117, TX200, T50 boards as an example:

We check the fuse with a tester and if it is “dead”, you should think about why this happened?! It is common knowledge that fuses protect the power supply from the load. The load in our case is the CSIC board and the print head of the printer, and since the fuse is blown, this is not accidental!!! Do you feel the situation is dangerous? In any case, let's continue...

We restore the fuse with the usual “snot”, of course it makes sense to look for the same thing, but in our case it won’t get any worse! We don’t turn on the printer right away!!!

If the board uses conventional bipolar transistors, such as on the TX117 TX200, then we measure the base-collector and base-emitter transitions. The resistance must be at least 250 ohms. If the tester “rings”, change the transistors.

It is highly undesirable to replace transistors with analogue ones, since the head power supply circuit is very similar to old AF power amplifiers and is a balanced pnp/npn pair with a zero point. It is almost impossible to find them on sale, so if you change, then change both at once to a matched pair, rummage through the Datasheets and find something suitable.

Now let's consider a more complex case, the board has TT series transistor assemblies installed. An example will be the T50 board.

After restoring the fuse, we measure the transitions on the assemblies, as shown in the photo, if everything is OK, we connect the cables and measure the resistance between F2 and ground, the resistance should be within 480 Ohms.

If everything is in order, assemble the printer and turn it on. I call this moment the SMOG TEST! If smoke does not start immediately, it means that we have the opportunity to install cartridges and print a nozzle test, this is the most important test of the printer.

What else do you need to pay attention to!!!

In a situation where we are faced with “dead” transistors, we should find out why they failed:

First of all, you need to inspect the print head connector for liquids, such as ink, getting into it. As practice shows, even one small drop in this connector is enough to burn out the main board. If we see traces of electrolysis on the cable, carefully clean both it and the connector! Remember, if you leave carbon deposits in this place (and these are nothing more than electrically conductive carbon compounds), the printer will work for a little while and die again. In some cases, it is advisable to replace (resolder) a burnt-out connector.

Secondly, in the same way, we carefully examine the connector of the CSIC strip.

Addition: Recently I encountered a problem of this kind: We brought a T50 printer for repair, the problem is standard, “all 6 cartridges are not detected.” The source of the defect is the print head cable filled with ink. I washed and cleaned the connector and cable, checked the transistor assemblies, they turned out to be “alive”. The fuse is blown. Restored the fuse with a jumper. I turned it on, the cartridges were detected, but the print showed a blank sheet! I disassembled everything again and upon careful examination discovered a neat, small hole in the PG signal encoder chip. This is such crap... Now, without fail, I examine this little thing for “holes” :-)

Board repair option. Components soldered from an Epson R270 board.

Created 08/23/2012 13:50

Epson does not see cartridges - solution to the problem in pictures

Diagnostics

First you need to identify the symptoms of the printer.

The malfunction may be in the chips (install a new one, preferably a known good one), in the CSIC, or in the board

If, when turned on, the “droplet” indicator lights up, which symbolizes that there is no cartridge or the ink has run out. When you press the button above the indicator, the printer will show that all cartridges are missing, although you have all the cartridges installed. Take out one, any cartridge and press the button above the lit indicator, the carriage should go into its initial position, but the “droplet” indicator does not stop lighting, we press the button again, but now the printer will show that the cartridge that you removed is missing. Those. when the printer has all the cartridges, the printer shows that there is not a single cartridge, and when one cartridge is missing, the printer shows that only one is missing.

Reasons why your fuse may be blown

Print head flooded with ink, moisture in the electronic part, burnt head. Power surges, pulling out the power cord while the printer is running, pulling out electronic cables while the printer is turned on (especially on the head), contamination or deformation of the contacts on the electronic cable in the printer.

In the above situations, the fuse on the board that supplies power to the CSIC and the print head is lit.

If your fuse is blown, do not drop the jumper and immediately start the printer.

You need to find the reason why you have increased stress and eliminate it.

Instead of a fuse, you can install a jumper or a 100 Ohm planar fuse.

Instead of transistors, you can use analogues, but I was never able to achieve stable operation and therefore use the originals. You can buy from us

You can also purchase new motherboards for Epson in the online store.

Below are examples of boards from Epson printers Stylus Photo T50 or Epson Stylus Photo P50 or Epson Stylus Photo R290, Epson Stylus Photo R270, Epson Stylus S22, MFP Epson Stylus SX125 or Epson Stylus SX130, Epson Stylus TX117 or Epson Stylus TX119, Epson Expression Home XP-103, Epson Stylus SX430W , Epson Stylus Photo RX 610, Epson Stylus Photo PX730WD or Epson Artisan 730, Epson Stylus CX3700, Epson Stylus C87, Epson Stylus Photo RX 700, Epson Stylus Photo RX 500, Epson Stylus CX3500, Epson Stylus Photo 1410, Epson Stylus Photo R1800, Epson Expression Home XP33, Epson Stylus Photo TX650, Epson stylus Photo R800, Epson Stylus CX4900.

Epson Stylus Photo T50: fuse F2.

Figure 1 shows a board from Epson Stylus Photo T50, the multimeter shows that the fuse is faulty.

Figure 2 shows fuse F2 in close-up.

Figure 3 shows the replaced, new fuse.

In Figure 4, the multimeter shows its resistance.

Epson Stylus Photo T50: TT3043 transistors; TT3034.

Figure 5 shows TT3043 transistors; TT3034. close-up.

Figures 6,7,8,9,10 show examples of ringing of the legs of TT3043 transistors; TT3034, we call from the middle one to the other four legs.

The second transistor is dialed in exactly the same way, our transistors are intact, no re-soldering is needed.

Epson Stylus Photo R270: fuse F2.

Figure 11 shows the board from Epson Stylus Photo Photo T50, the multimeter shows that the fuse is bad.

Using the example of the Epson Stylus Photo T50 printer, we showed replacing the fuse; in the next photo we soldered the wiring (Figure 12).

Epson Stylus Photo R270: transistors A2098 and C6082.

Figures 13,14,15 show examples of ringing legs of transistors A2098 and C6082.

All transistors are dialed in exactly the same way, our transistors are intact, no re-soldering is needed.

Epson Stylus S22: fuse F1.

Figure 16 shows fuse F1 in close-up.

In Figure 17, the multimeter shows its resistance.

The fuse is intact, replacement is not needed, if your multimeter shows value 1 like the previous Epson Photo T50 printer, figure 1, then the fuse needs to be replaced.

Epson Stylus S22: transistors C6017, A2169.

Figures 18,19,20 show examples of ringing in the legs of transistors C6017, A2169.

Epson Stylus SH125: fuse F2.

Figure 21 shows a close-up of fuse F2.

In Figure 22, the multimeter shows its resistance.

The fuse is intact, replacement is not needed, if your multimeter shows value 1 like the previous Epson Photo T50 printer, Figure 1, then the fuse needs to be replaced.

Epson Stylus SH125: transistors C6017, A2169.

Transistors are checked in the same way as on the Epson Stylus S22 printer.

Epson Stylus CX7300: fuse F1 Figure 23.

Epson Stylus CX7300: transistors A2098 and C6082 Figure 24.

Epson Stylus SX235W: fuse F1 Figure 25.

Epson Stylus SX235W: transistors A2222 and C6144 Figure 26.

Epson Stylus CX4300: transistors C6017 and A2169 and fuses F1 and F2 Figure 27.

Epson Stylus TX117: transistors C6017, A2169 and fuses F1 Figure 28.

Epson Stylus XP-103: transistors C6144, A2222 Figure 29.

Epson Stylus XP-103: fuse F1, Figure 30.

Epson Stylus SX430W: transistors C6144, A2222 Figure 31.

Epson Stylus SX430W: fuse F1, Figure 32.

Epson Stylus Photo RX610: fuse F2, Figure 33.

Epson Stylus Photo RX610: transistors SA2210, TT3034 Figure 34.

Epson Stylus Photo PX730WD or Epson Artisan 730: fuse F1, Figure 35.

Epson Stylus Photo PX730WD or Epson Artisan 730: transistors STP01P and STP01N, Figure 36.

Epson Stylus CX3700: fuse F1 and F2 Figure 37.

Epson Stylus CX3700: transistors A2099 and C5888, Figure 38.

Epson Stylus C87: fuse F1, Figure 39.

Epson Stylus C87: fuse F2, transistors A2099 and C5888, Figure 40.

Epson Photo Stylus RX700: fuse F1 and F2 Figure 41.

Epson Stylus Photo RX700: transistors A1746 and C4131, Figure 42.

Epson Photo Stylus RX500: fuse F1 and F2 Figure 43.

Epson Stylus Photo RX500: transistors A2099 and C5888, Figure 44.

Epson Stylus CX3500: fuse F1 and F2, Figure 45.

Epson Stylus CX3500: transistors A2099 and C5888, Figure 46.

Epson Stylus Photo 1410: fuse F2, transistors A2098, A2098 and C6082, C6082 Figure 47.

Epson Stylus Photo R1800: fuse F2, Figure 48.

Epson Stylus Photo R1800: fuse F1 and transistors A1746 and C4131, Figure 49.

Epson Expression Home XP33: Fuse F1, Figure 50.

Epson Expression Home XP33: transistors C6144, A2222, Figure 51.

Epson Stylus Photo R800: fuse F2, Figure 52.

Epson Stylus Photo R800: transistors C4131, A1746, Figure 53.

Epson Stylus Photo TX650: fuse F2 and transistors TT3034, TT3043, Figure 54.

Sometimes inkjet printer Epson refuses to print, citing that "the cartridges cannot be identified"

Here is a non-exhaustive list of printers that are susceptible to malfunctions:

Printers (4 colors): Epson Stylus T26, T27, T30, T40, C110, S22.
Photo printers (6 colors): Epson Photo R270, R290/295, R390, T50, T59, P50
MFP (4 colors): Epson Stylus CX3700, CX3900, CX4700, CX4900, TX106/109, TX117/119, SX125, SX425, SX550…
Photo series MFP (6 colors): Epson Stylus RX590, RX610/615, TX650, TX700, TX710, TX800

First, we look at the status of the monitor on the computer; we need to find out what exactly we are faced with. We do not recommend relying on the readings of the LCD displays of the MFP, since they do not contain all the information we need. There are two options:

1) One or more cartridges are not detected.

Everything is simple here - either the chips on the cartridges themselves are to blame, or there is no contact with the CSIC controller.

Let us immediately explain what CSIC is. This is a controller for intelligent chips on Epson cartridges. It looks something like this:

The easiest way to find out what exactly is to blame is to replace the cartridges, PZK (refillable cartridges) or CISS (continuous ink supply system).

Or try it like this:

2) All cartridges are not detected!
Most likely, the control board, cables and other electronics are to blame.

Attention! Repairing the points outlined below is not recommended if you are repairing for the first time, have ONLY assembly and disassembly skills, or have never done anything like that (soldering, ringing, etc.)! It's better to leave it to the experts. All repairs are carried out at your own risk. Think about it!

So, you finally decided to take a risk and try to do everything yourself! Well, go ahead!
Possible options:

a) There is damage or there is a lack of contact in the connectors and cables going from the carriage to the main board. In practice, this rarely occurs and, if such cases occur, it is as a result of human intervention. On the TX700/710/800 series MFPs, it makes sense to pay attention to the cable going to the CSIC board; it is routed separately from the entire bundle.

b) The SCIC board has failed. It is quite difficult to burn it out, but it is possible. Check to see if this controller is flooded with ink. This happens if the user does not care about the printer, or ink flows past the cartridges, or uses it for wear and tear, without caring about periodic maintenance. Non-original ink produces a lot of dust, generously staining the inside of the printer mechanism. The only way to determine whether this is true is by replacing the board. Let’s leave this option for now (there’s nothing to replace it with anyway), let’s move on.

c) There is a possibility of failure of the CHIP strip or the main SCSI CHIP if they are separate. We check by replacing the CISS. Nothing to check? Go ahead.

d) CSIC board is de-energized! those. The fuses on the main board are faulty. Let's begin to understand in detail!

First, let's look at part of the circuit diagram of the printer's main board: (if you don't understand this, then it's better to ignore your pride and take the printer to a service center)

Please note that power is supplied to the CSIC controller and the printer print head through a fuse. You definitely (!) need to check whether he is “alive” or not.

First you need to find the fuse itself, or fuses, on the board. They are designated as standard F1, F2, are quite small in size and are located close to the 2 power transistors that control the PG and CSIC power bus.

You can figure out for yourself how to disassemble the printer and get to the main board (BOARD ASSY MAIN).

I’ll show you using Epson TX117, TX200, T50 boards as an example:

Please note that power is supplied to the CSIC controller and the printer print head.
through the fuse. You definitely (!) need to check whether he is “alive” or not.

(You can guess how to disassemble the printer and get to the main board (BOARD ASSY MAIN) or google it yourself)

First you need to find the fuse itself, or fuses, on the board. They are designated
standard F1, F2, quite small in size and located close to 2 power transistors
controlling the PG power bus and CSIC.

Let's show the example of Epson TX117, TX200, T50 boards:

We check the fuse with a tester, and if it is “dead,” you should think: why did it burn out?
It is common knowledge that fuses protect the power supply from the load. Load in
In our case, this is the CSIC board and the print head of the printer, and since the fuse is blown, this is not
accidentally! Let's continue the investigation!

We restore the fuse with a regular jumper; looking for the same one is not unreasonable, but it takes a long time, and
in our case it can’t get any worse! The main thing is not to turn on the printer immediately after soldering, but to figure out something else.

If the board uses conventional bipolar transistors, as, for example, on the TX117 TX200, then
We measure the base-collector and base-emitter transitions. The resistance must be at least 250 ohms. If
the tester “ringed”, change the transistors.

It is highly undesirable to replace transistors with analogues, since the head power supply circuit is very similar to
old AF power amplifiers and is a balanced pnp/npn pair with zero
dot. It is almost impossible to find them on sale, so if you change them, then change them both at once
matched pair, rummage through the Datasheets and find something suitable.

Now let's consider a more complex case - TT series transistor assemblies are installed on the board. IN
An example would be the T50 board.

After restoring the fuse, we measure the transitions on the assemblies, as shown in the photo, if
everything is OK, connect the cables and measure the resistance between F2 and ground - the resistance should be
within 480 Ohms.

If everything is in order, assemble the printer and turn it on. This moment is called the SMOG TEST! If smoke does not start immediately, it means that we have the opportunity to install cartridges and print a nozzle test, as the most important printer test.

You also need to pay attention to the following:

In a situation where we are faced with “dead” transistors, we should find out why they failed
out of order - first of all, you need to inspect the print head connector for liquids - ink, for example - getting into it. As practice shows, even one small drop in this connector is enough to burn out the main board. If we see traces of electrolysis on the cable, carefully clean both it and the connector! Remember, if you leave carbon deposits in this place (and these are nothing more than electrically conductive carbon compounds), the printer will work for a little while and die again. In some cases, it is advisable to replace (resolder) a burnt-out connector. In the same way, we carefully examine the connector of the CSIC strip.

Epson does not see cartridges - solution to the problem in pictures

Diagnostics

First you need to identify the symptoms of the printer.

The malfunction may be in the chips (install a new one, preferably a known good one), in the CSIC, or in the board

If, when turned on, the “droplet” indicator lights up, which symbolizes that there is no cartridge or the ink has run out. When you press the button above the indicator, the printer will show that all cartridges are missing, although you have all the cartridges installed. Take out one, any cartridge and press the button above the lit indicator, the carriage should return to its original position, but the “droplet” indicator will not stop lighting, press the button again, but now the printer will show that the cartridge you removed is missing. Those. when the printer has all the cartridges, the printer shows that there is not a single cartridge, and when one cartridge is missing, the printer shows that only one is missing.

Reasons why your fuse may be blown

Print head flooded with ink, moisture in the electronic part, burnt head. Power surges, pulling out the power cord while the printer is running, pulling out electronic cables while the printer is turned on (especially on the head), contamination or deformation of the contacts on the electronic cable in the printer.

In the above situations, the fuse on the board that supplies power to the CSIC and the print head is lit.

If your fuse is blown, do not drop the jumper and immediately start the printer.

You need to find the reason why you have increased stress and eliminate it.

Instead of a fuse, you can install a jumper or a 100 Ohm planar fuse.

Instead of transistors, you can use analogues, but I was never able to achieve stable operation and therefore use the originals.

Approximate transistor parameters

Below are examples of boards from printers Epson Stylus Photo T50, Epson Stylus Photo R270, Epson Stylus S22, MFP Epson Stylus SX125, Epson Stylus TX117, Epson Stylus XP-103, Epson Stylus SX430W.

Epson Stylus Photo T50: fuse F2.

Figure 1 shows a board from Epson Stylus Photo T50, the multimeter shows that the fuse is faulty.

Figure 2 shows fuse F2 in close-up.

Figure 3 shows the replaced, new fuse.

In Figure 4, the multimeter shows its resistance.

Epson Stylus Photo T50: TT3043 transistors; TT3034.

Figure 5 shows TT3043 transistors; TT3034. close-up.

Figures 6,7,8,9,10 show examples of ringing of the legs of TT3043 transistors; TT3034, we call from the middle one to the other four legs.

The second transistor is dialed in exactly the same way, our transistors are intact, no re-soldering is needed.
Epson Stylus Photo R270: fuse F2.
Figure 11 shows the board from Epson Stylus Photo Photo T50, the multimeter shows that the fuse is bad.

Using the example of the Epson Stylus Photo T50 printer, we showed replacing the fuse; in the next photo we soldered the wiring (Figure 12).

Epson Stylus Photo R270: transistors A2098 and C6082.
Figures 13,14,15 show examples of ringing legs of transistors A2098 and C6082.

All transistors are dialed in exactly the same way, our transistors are intact, no re-soldering is needed.

Epson Stylus S22: fuse F1.
Figure 16 shows fuse F1 in close-up.

In Figure 17, the multimeter shows its resistance.

The fuse is intact, replacement is not needed, if your multimeter shows value 1 like the previous Epson Photo T50 printer, figure 1, then the fuse needs to be replaced.

Epson Stylus S22: transistors C6017, A2169.
Figures 18,19,20 show examples of ringing in the legs of transistors C6017, A2169.

Epson Stylus SH125: fuse F2.
Figure 21 shows a close-up of fuse F2.

In Figure 22, the multimeter shows its resistance.

The fuse is intact, replacement is not needed, if your multimeter shows value 1 like the previous Epson Photo T50 printer, Figure 1, then the fuse needs to be replaced.

Epson Stylus SH125: transistors C6017, A2169.
Transistors are checked in the same way as on the Epson Stylus S22 printer.

Epson Stylus CX7300: fuse F1 Figure 23.

Epson Stylus CX7300: transistors A2098 and C6082 Figure 24.

Epson Stylus SX235W: fuse F1 Figure 25.

Epson Stylus SX235W: transistors A2222 and C6144 Figure 26.

Epson Stylus CX4300: transistors C6017 and A2169 and fuses F1 and F2 Figure 27.

Epson Stylus TX117: transistors C6017, A2169 and fuses F1 Figure 28.

Epson Stylus XP-103: transistors C6144, A2222 Figure 29.

Epson Stylus XP-103: fuse F1, Figure 30.

Epson Stylus SX430W: transistors C6144, A2222 Figure 31.

Epson Stylus SX430W: fuse F1, Figure 32.

Advice from the site

Most often, fuses and transistors on the control board of Epson printers burn due to an incorrect “crooked” attempt to wash the print head, inept assembly, washing that got on the contacts, the print head and its contacts are flooded with ink, all these are the reasons why fuses and transistors burn. Therefore, we advise you not to take risks, but to purchase special kits for carefully washing printing Epson heads, when using special washing kits, you do not risk burning your printer!