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Topic: Attempting to repair Epson 7900 with a 1439 error (Read 18692 times)
Has anyone else with an Epson 7900 received an 1439 error («cap error»)? I’ve been getting it a lot lately, and am considering trying to repair it myself.
Some background: I started getting this error a month ago, and have been getting it more and more since. The error flashes a big warning to restart your printer, and if it doesn’t clear, call service. I called in, and according to Epson tech support, it is a problem with the «pump cap assembly». This is where the print head parks, and where it sits to be cleaned. The error occurs when the print head has trouble seating itself on the assembly. Tech Support recommended I restart the printer, but if the error persists, to have Decision One come out and replace the assembly. Restarted working at first, but now I get this error several times a day, so it’s time to move to step 2. Since I am out of warranty, D1’s estimate ran about $1000 for parts and labor. So, I wondered, why not try to do this myself?
I’ve been reading the instructions in the Service Manual and Field Repair Guide, and think I have it worked out. The first hurdle was realizing that each manual calls this part by a different name: Epson Tech Support calls it the «pump cap assembly», the SM calls it the «Ink System» and the FRG calls it the «Cleaning Unit». But if you look, you see that they are all the same thing.
Second, I’ve been encouraged by Eric Gulbransen’s videos (thank you Eric! I owe you some «manure»). Watching his print head replacement video while reading the Service Manual really helps illustrate the process. His video shows how to take apart the left side, and the pump cap assy is on the right, but it appears to be the same exact process. I have a pump cap assembly (part#1569512) on order from Compass Micro, and am ready to give this a try. I figure, the worse that can happen is I do it wrong and need to get Decision One out here anyway.
Has anyone else every replaced the pump cap assembly? Any advice?
« Last Edit: February 24, 2013, 10:36:33 am by dansroka »
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I’ve done the procedure. Far less complicated than the head. If you are considering doing it yourself, there’s a very good chance you can manage it. Confidence mainly comes inappropriately when you’re in your teens…
One thing to be careful of — when you pull off the right side cover be very careful not to tear the ribbon cable, which is now hanging loose through the hole in the cover where the control board used to be. You would have removed the control board already, before trying to remove the side cover. So as you slide the cover off, the ribbon cable needs to sneak safely through that opening, and not get torn by any of the cover screw mounts. You’ll see when you’re doing it. Just keep your eye on it you’ll be fine. Everything else is by the book.
If you get stuck feel free to contact me.
Good luck partner
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Thanks Eric. We’ll see how it all goes!
By the way, I finally found one of those elusive magnetic #1 phillips head long-shank screwdrivers on Amazon.
« Last Edit: February 26, 2013, 12:56:08 pm by Dan Sroka »
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Dan, did you ever attempt the replacement of the pump cap assembly? I am experiencing the same issue and considering trying this myself also. I’m interested if you were successful or had any advice.
Thanks!
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Yes, I did do the repair, and it all went well. Replacing the pump/cap assembly stopped the error from reoccurring. The replacement itself was relatively straightforward and painless, as long as you have some basic comfort with electronics and opening stuff up. I meant to write it up, but just forgot! I’ll write up some more detailed thoughts and try to post them tomorrow.
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Here’s how this repair went. If you are relatively handy, and don’t get scared by the sight of open electronics, it was pretty straight foward. Being super careful, it took me around 1-2 hours.
First thing you should do is watch Eric Gulbransen’s video on replacing the print head. It’s not the same part, and its not even on the same side of the printer, but his walkthrough about how to take the outer shell of the printer off makes this process much much easier. Oh, then donate some buck to him to continue his excellent work.
Next, get copies of both Epson 7900 manuals: the «Epson 7900 Service Manual» and the «Epson 7900 Field Repair Guide». You can’t buy them, and no one links to them. But if you do Google searches on them, you’ll be able to find them. You will need both. They cover roughly the same info, but from different perspectives. I found that the Service Manual is better for disassembly, and the Field Repair Guide is better for re-assembly. Note that the Pump Cap Assembly is called the «Ink System» in the Service Manual (diagram on pg 55, replacement outlined on page 179), and is called the «Cleaning Unit» in the Field Repair Guide (detailed instructions for removal and installation on page 39).
Then, buy a new pump cap assembly. Epson part 1569512. I got mine from Compass Micro for around $231. Call Rod at 800-388-8595.
Follow the instructions to remove the Pump/Cap Assembly. I read through them like a dozen times first. It’s a big part, but don’t be intimidated — it’s designed to be replaced, and is only held in by a few strategic screws.
When your 7900 is open, but BEFORE you remove the Assembly, be sure to LABEL each of the wires that connect the assembly to the sub-assembly circuit board. There are 18 of them, and if you just pull them out, you will have a heck of a time figuring out which goes where. First label the wires in the existing assembly. THEN label the wires in the new assembly. Double-check that you have them all.
When you pull the wires from the sub-assembly circuit board, they don’t come out straight — you need to jog them slightly to the side to release.
That’s really it — the manuals step you through the whole process. Hope this helps!
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I realize that this is coming a year after this thread initially appeared, and I’m sorry for that. It looks like the procedure for changing the pump/cap assembly requires a jig for the last step, something stepped with 2.0, 2.2 and 2.8 mm steps. If you could advise on how you handled the PG Cleaning step, I’d be grateful.
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I’m not sure what you are referring to. Where (what PDF, what page) did you read this?
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I am also looking to replace the pump cap assembly however on page 372 of the service manual it makes mention to a PG cleaning tool «required» to check how the printhead mounts. If you were able to bypass this step, how did you do it? Any help would be great.
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Page 372 is not a part of the pump cap assembly replacement instructions. No cleaning tool or jig was required.
The manual can be confusing — make sure you are reading just the sections related to replacing this part (some sections contain multiple repairs, one after another.
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The error which flashes with a big warning message can now be easily resolved. To fix Epson Printer Error Code 1439 which ask you to restart the machine you can connect with us. In case where the error code doesn’t clear, it alerts you for all call service. According to the technical professional expert, this is basically a “pump cap assembly” technical problems where the print head will spark, and needs to be cleaned out properly. The other cause of the problem is when the print head is facing trouble in getting adjusted itself on the assembly. You can follow the below mentioned below steps to get the issues resolved fast.
Steps to troubleshoot Epson Printer Error Code 1439
Step 1: Replace the print-head
The very step one must take to resolve is the error code is to replace the print head. Issues may arise if the print-head parts are not matched equally and even it is not on the same side of the printer. The particular step of replacing print-head is the finest and helps you in removing the error code smoothly.
Step 2: Remove the Pump Cap Assembly
When you have started the Epson Printer Model 7900 is open, make sure to label each of the wires accurately to connect the assembly to the sub-assembly circuit board. It should be done before removing the Pump Cap Assembly. You will get approximately 18 of them, and if it is unexpectedly pulled out, it will be difficult to figure out the issue. Therefore you must label the wires first in the existing assembly before labeling to the new assembly. Now, double-check whether you have them all.
Step 3: Replace the Pump Cap Assembly
The next thing is to replace the pump cap assembly which is also known as “Ink System” or a “Cleaning Unit”. So, buying a new pump cap assembly is highly recommended. While pulling up the wires from the sub-assembly circuit board, you will notice that they won’t be coming out straight. So you have to do it very carefully.
For more such critical issues, do call us at Epson Printer Support Number +1-888-573-0071
When failing in understanding the steps dial Epson Printer Customer Support Phone Number which is toll-free to get the proactive replies for all your Epson printer issues. At Epson Printer where our technicians are always ready to assist you in delivering all types of solutions. We are available 24*7 hours to help you recover and from all types of Epson Printer issues. You can also communicate via having live chat or drop an email to customer support email id address. Avail the best support solution services immediately and instantly.
Related Post: How To Fix Epson Printer Error Code 0001000c ?
The error usually flashes with a big warning message which asks users to restart the printer. If it is the case where the code doesn’t clear, it alerts users for call service. According to professionals, this is basically a “pump cap assembly” technical problems where the print head will spark, and needs to be cleaned out properly. The other cause of this problem is when the print head has trouble getting adjusted itself on the assembly. Well, below we have steps to fix Epson Printer Error Code 1439 which will help users understand easily.
Table of Contents
Steps to troubleshoot Epson Printer Error Code 1439
Step 1: Replace the print-head
To get rid of this error code, the first thing is to replace the print head. Issues may arise if the print-head parts are not matched equally and even it is not on the same side of the printer. This step will help you remove the error code easily.
Step 2: Remove the Pump Cap Assembly
When you have started the Epson Printer Model 7900 is open, make sure to label each of the wires accurately to connect the assembly to the sub-assembly circuit board. It should be done before removing the Pump Cap Assembly. You will get approximately 18 of them, and if it is unexpectedly pulled out, it will be difficult to figure out the issue. So, first you should label the wires in the existing assembly and then, label the wires in the new assembly. Now, double-check whether you have them all.
Step 3: Replace the Pump Cap Assembly
The next thing is to replace the pump cap assembly which is also known as “Ink System” or a “Cleaning Unit”. So, buying a new pump cap assembly is highly recommended. While pulling up the wires from the sub-assembly circuit board, you will notice that they won’t be coming out straight. So you have to do it very carefully.
Related Blog: How To Fix Epson Printer Error Code 0x91?
Dial us at Epson Printer Support Number for immediate solutions to Epson printer queries
Get connected to us at Epson Printer Phone Number to get proactive replies for all your Epson printer issues where our technicians are always ready to assist you in delivering all types of solutions. We are available 24*7 hours to help you recover from all types of Epson Printer issues. So, call us anytime and resolve problems faster.
Are you using Epson printer and facing Error Code 1439 in it? Well, no need to worry contacts Epson Printer technical support number team experts to fix an issue with ease. OR you can fix this issue to yourself by following the below-listed steps. Steps to fix Epson Printer Error Code 1439Step 1: Carefully replace the print-headUsually, this kind of problem may occur when some parts of print-head are not matched similarly & even it is not on the same side of the printing machine. If you want to resolve this issue then the first thing you need to do is replace the print head of the machine. Step 2: Properly Remove the Pump Cap AssemblyWhen you start the Epson device, always ensure that wires are correctly connected to the assembly or to the circuit board of sub-assembly. It always was done before eradicating the Pump Cap Assembly. You will get around 18 of them, and if it is surprisingly pulled out, then it will be very hard to identify the issue. So, first, you need to label the wires in the existing assembly and then, label the wires in the new assembly. Step 3: Replace the Pump Cap AssemblyThe next thing you need to do is replace the pump cap assembly carefully and it is also known as “Cleaning Unit” or “Ink System”. So, it is recommended to buying a new pump cap assembly. While pulling out the cables from the circuit board, always ensure that wires won’t be coming out straight. If still issue doesn’t get fixed then comes in contact with third-party experts. Dial Epson Technical Support Number for immediate helpFor Additional support make a call on toll-free 1-800-862-1908 Epson Printer technical support phone number for experts’ advice and they always provide you the hassle-free solution at the time. About This Author
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Maintenance Codes
Error Code: Description:
0010 | Communication with the AID Board is not established. The voltage applied to the Flushing Box does not reach the specified level. |
|
4000 | It detects twice in a row that all the nozzles are clogging. | |
8000 | Detects Noises during AID operation. |
Service Call Errors
Error Code: Description:
1101 | CR life error | |
1125 | CR HP detection error | |
1138 | Over current error | |
113A | Overload error | |
113B | Over speed error | |
113C | Reversing error | |
113D | Driving time-out error | |
113E | Velocity deviation error | |
113F | Lock error | |
122A | Overload error | |
122B | Over Speed error | |
122C | Reversing error | |
122D | Driving time-out error | |
122E | Velocity deviation error | |
122F | Lock error | |
131B | Head driver (transmission gate) overheat error | |
13F0 | ICL operation error | |
1411 | Select error | |
1412 | Pump life error | |
1419 | Pump release error | |
141A | Overload error | |
141B | Over Speed error | |
141C | Reversing Error | |
141D | Pump phase detection error | |
141E | Type-B board installation error | |
141F | Lock error | |
1427 | CSIC destination setting error | |
1428 | Ink holder Board Assy | |
1430 | Holder ink pad error | |
1431 | Ink selector life error | |
1434 | IC cover unlock error | |
1438 | Maintenance tank error | |
1439 | Cap error | |
143A | Overload error | |
143B | Over speed error | |
143C | Reversing error | |
143D | Driving time-out error | |
143E | Velocity deviation error | |
143F | Lock error | |
144A | Overload error | |
144B | Over speed error | |
144C | Reversing error | |
144D | Driving time-out error | |
144E | Velocity deviation error | |
144F | Lock error | |
1488 | Flushing box position error | |
1489 | Wiper error | |
148A | Overload error | |
148B | Over speed error | |
148C | Reversing error | |
148D | Driving time-out error | |
148E | Velocity deviation error | |
148F | Lock error | |
1494 | Ink selector error | |
1496 | Ink selector sensor error detection | |
1497 | Switching time-out error | |
149D | Driving time-out error | |
1501 | Release motor phase detection error | |
150C | PG phase detection error | |
151A | Overload error | |
151B | Over speed error | |
151C | Reversing error | |
151D | Driving time-out error | |
151E | Velocity deviation error | |
151F | Lock error | |
152A | Overload error | |
152B | Over speed error | |
152C | Reversing error | |
152D | Driving time-out error | |
152E | Velocity deviation error | |
152F | Lock error | |
1530 | Driven roller HP detection error | |
1536 | Pressurizing reset error | |
1537 | Pressurizing error | |
153A | Overload error | |
153B | Over speed error | |
153C | Reversing error | |
153D | Driving time-out error | |
153E | Velocity deviation error | |
153F | Lock error | |
1540 | Cutter HP detection error | |
1541 | Cutter return error | |
1549 | Motor disconnection error | |
154A | Overload error | |
154B | Over speed error | |
154C | Reversing error | |
154D | Driving time-out error | |
154E | Velocity deviation error | |
154F | Lock error | |
1551 | Paper thickness determining error | |
1561 | Paper thickness at power-on error | |
1800 | AID voltage error | |
1A23 | Incorrect RTC data error | |
1A26 | RTC Access T/O error | |
1A37 | Thermistor error | |
1A38 | Transistor environmental temperature error | |
1A39 | Head error | |
1A40 | IC22 error | |
1A41 | Head rank ID input error | |
1A50 | I2C communication error (Between elements on ASIC and MAIN) | |
1A51 | I2C communication error (Between elements on SUB and MAIN) | |
1A52 | I2C communication error (Between elements on SUB-B and MAIN) | |
1A53 | I2C communication error (Between elements on SUB-C and MAIN) | |
2000 | NVRAM error | |
2002 | SDRAM error | |
2003 | FLASH BOOT SUM CHECK error | |
200A | F/W load error | |
200D | System interrupt watchdog time-out error | |
200E | Unknown NMI | |
2010 | UART communication error | |
3000 | AC shut-off | |
D131 | AID error | |
Fxxx | CPU-related error | |
Dxxx | Debug error |