Please inform me paper feeding problem - Minolta EP1030/1030F CS/PRO Copier

a 5a error code means that The machine does not work due to a paper jam or some sensor problem. here is a list of error codes for the dcp-j125 printer.
Error Code Cause Solution 30,31,32,33,34,35,36
37,38,39,3C,3F The machine does not work due to a paper jam. Clear the paper jam. (Please refer to "FAQs & Troubleshooting" for information on the Paper Feeding.) 40,42,43,44 The internal temperature is too high. Unplug the machine from the AC outlet and if possible cool the room where the machine is located. 46 The ink absorber pad is full and needs replacing. Please contact Brother Customer Service from "Contact Us". 48 There is a problem on the print head, Please contact Brother Customer Service from "Contact Us". 49 The internal temperature is too low. Unplug the machine from the AC outlet and if possible warm the room where the machine is located. 4F There is a problem on the print head. Please contact Brother Customer Service from "Contact Us". 50,51,52,57,5A,5B,5C
5D,5E The machine does not work due to a paper jam or some sensor problem. Clear the paper jam. (Please refer to "FAQs & Troubleshooting" for information on the Paper Feeding.) If the problem still continues after clearing the paper jam, please contact Brother Customer Service from "Contact Us". 8F There is a problem on the paper feed motor. Please contact Brother Customer Service from "Contact Us". A5,A6,A7,A8,AF There is a problem on the scanner. Please contact Brother Customer Service from "Contact Us". E2,E3 There is a problem on the main PCB. Please contact Brother Customer Service from "Contact Us".

Hello -

From Support information I found on the Canon website, the paper feed rollers of your PIXMA iP1900 may need cleaning.

Source:
https://www.canon.co.uk/support/consumer_products/content/faq/?itemid=tcm:14-609974

The feed roller cleaning function allows you to ckean the paper feed roller. perform feed roller cleantng when there are paper particles sticking to the paper feed roller and paper is not fed properly.
The procedure for cleaning the feed rollers is as follows:

1.Prepare the printer
Remove all sheets of paper from the rear tray.
2.Open the printer driver setup window
3.Click Roller Cleaning on the Maintenance tab
The confirmation message appears.
4.Execute paper feed roller cleaning
Make sure that the printer is on and click OK.
Paper feed roller cleaning starts.
5.Complete paper feed roller cleaning
After the rollers have stopped, follow the instruction in the message, load three sheets of plain paper into the rear tray, and click OK.
Paper will be ejected and feed roller cleaning will be completed.
+++

Best wishes.

You said that the paper is fed on one side. Am I right?. If it so,it seems that another material is present inside your printer.
Please check this post for more information

Most of our printers pull the paper down on one side slightly faster than the other. The printer hardware should even this out when printing. You should also ensure the paper meets the automatic feeder requirements of the printer.
If printing is skewed, feeding multiple pages or jamming, please follow these instructions (use a regular letter size paper to test after doing the steps given below):
Please check to ensure there is nothing obstructing the paper feed mechanism down inside the printer where it is not easily seen. If there is nothing obvious, unplug the printer and remove the paper. Open the front cover and look above the steel rod. You should see a conveyor belt with rubber teeth on it, like a fan belt. Take the bottom part of that belt and move it gently to the left. The cartridges should come out with it. Make sure the cartridges can move fully from one side of the printer to the other. Check also the output rollers on the bottom of the printer for any blockage. If it is jamming under the carrier assembly, you may be able to fix it using the manual feed slot. Turn the printer off. Next take a #10 envelope and feed it through the left side of the paper feed slot (The manual paper feed slot is preferred, but the automatic feed will do if there is no manual paper feed for this printer) until it comes completely through the printer to the back of the exit rollers. Move it up and down and slowly move it over to the right side. If something is stuck under the black guide plate this may work it loose or you may have to feed the envelope through the front rollers and push your way backward (please be careful here).
Next, take a damp warm cloth and clean the rubber rollers in the automatic sheet feeder. Dust may be coating the rollers there and as they become less tacky, they cannot feed paper correctly.
Finally, turn the printer upside down and carefully shake it for 10 to 20 seconds to see if something falls out of the paper feed path. Then plug the printer back up, take your paper out and replace it with a fresh, small stack (about 5 pages) of paper. Quickly bend the stack in an 'S' shape a few times to separate pages. Make sure it is lined up on the right side of the paper feed and the paper guide on the left is snug on the left side of the paper. Then try to form feed again. If that works, then try to print again.
If it still fails to feed the paper correctly, please reply with the following information:
What type and brand of paper were you using? Have you ever used this type or brand of paper before and if so what were the results?

Most of our printers pull the paper down on one side slightly faster than the other. The printer hardware should even this out when printing. You should also ensure the paper meets the automatic feeder requirements of the printer.
If printing is skewed, feeding multiple pages or jamming, please follow these instructions (use a regular letter size paper to test after doing the steps given below):
Please check to ensure there is nothing obstructing the paper feed mechanism down inside the printer where it is not easily seen. If there is nothing obvious, unplug the printer and remove the paper. Open the front cover and look above the steel rod. You should see a conveyor belt with rubber teeth on it, like a fan belt. Take the bottom part of that belt and move it gently to the left. The cartridges should come out with it. Make sure the cartridges can move fully from one side of the printer to the other. Check also the output rollers on the bottom of the printer for any blockage. If it is jamming under the carrier assembly, you may be able to fix it using the manual feed slot. Turn the printer off. Next take a #10 envelope and feed it through the left side of the paper feed slot (The manual paper feed slot is preferred, but the automatic feed will do if there is no manual paper feed for this printer) until it comes completely through the printer to the back of the exit rollers. Move it up and down and slowly move it over to the right side. If something is stuck under the black guide plate this may work it loose or you may have to feed the envelope through the front rollers and push your way backward (please be careful here).
Next, take a damp warm cloth and clean the rubber rollers in the automatic sheet feeder. Dust may be coating the rollers there and as they become less tacky, they cannot feed paper correctly.
Finally, turn the printer upside down and carefully shake it for 10 to 20 seconds to see if something falls out of the paper feed path. Then plug the printer back up, take your paper out and replace it with a fresh, small stack (about 5 pages) of paper. Quickly bend the stack in an 'S' shape a few times to separate pages. Make sure it is lined up on the right side of the paper feed and the paper guide on the left is snug on the left side of the paper. Then try to form feed again. If that works, then try to print again.
If it still fails to feed the paper correctly, please reply with the following information:
What type and brand of paper were you using? Have you ever used this type or brand of paper before and if so what were the results? Once we have this information we will try to fix the unit through email support.

Hi,


If printing is skewed, feeding multiple pages or jamming, please follow these instructions (use a regular letter size paper to test after doing the steps given below):
Please check to ensure there is nothing obstructing the paper feed mechanism down inside the printer where it is not easily seen. If there is nothing obvious, unplug the printer and remove the paper. Open the front cover and look above the steel rod. You should see a conveyor belt with rubber teeth on it, like a fan belt. Take the bottom part of that belt and move it gently to the left. The cartridges should come out with it. Make sure the cartridges can move fully from one side of the printer to the other. Check also the output rollers on the bottom of the printer for any blockage. If it is jamming under the carrier assembly, you may be able to fix it using the manual feed slot. Turn the printer off. Next take a #10 envelope and feed it through the left side of the paper feed slot (The manual paper feed slot is preferred, but the automatic feed will do if there is no manual paper feed for this printer) until it comes completely through the printer to the back of the exit rollers. Move it up and down and slowly move it over to the right side. If something is stuck under the black guide plate this may work it loose or you may have to feed the envelope through the front rollers and push your way backward (please be careful here).
Next, take a damp warm cloth and clean the rubber rollers in the automatic sheet feeder. Dust may be coating the rollers there and as they become less tacky, they cannot feed paper correctly.
Then plug the printer back up, take your paper out and replace it with a fresh, small stack (about 5 pages) of paper. Quickly bend the stack in an 'S' shape a few times to separate pages. Make sure it is lined up on the right side of the paper feed and the paper guide on the left is snug on the left side of the paper. Then try to form feed again. If that works, then try to print the self test page.
Please follow the steps given below to perform the self-test:

1. Power the printer off.
2. Press and hold the "Paper Feed" button.
3. While still holding the "Paper Feed" button, press and release the "Power" button. Continue holding the "Paper Feed" button.
4. When the printer starts pulling paper, release the "Paper Feed" button. It should print a test page at this point.
5. Power the printer off, as this test is continuous.
The self-test should at least print out a set of either a solid black or solid color bars, if not both (if you have a printer with both color and black installed simultaneously). Should this test fail, please try it again without cartridges installed. If the self-test still fails to take paper in and make sounds like the carrier is moving across the paper, this is a hardware issue, and the printer will require service. If the self-test completes without any cartridges installed, run the self-test again with only a color cartridge installed (If you have both black and color cartridges, after this test, run the test again with just the black cartridge installed). If you find that either cartridge causes the self-test to fail, please let me know.

If it still fails to feed the paper correctly, please reply with the following information:
What type and brand of paper were you using?
Have you ever used this type or brand of paper before and if so what were the results?
Once we have this information we will try to fix the unit through email support.

Is the message general error? The problem is tchip. When turn on chip is recognized by printer, but when start to print, printer "read" some information from the chip. Here is the error. Some pin at the chip for redaing the existence of chip, other pin for reading the information. Check connector between chip and carriage.

Perhaps you are loading too much paper into the tray. Please try to work through the steps in this troubleshooter and see if it has any effect. If not, please report back with the results and someone will be happy to assist you.
HP OOPaper


I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread. If I've managed to answer your question or solve a problem, please take a moment to kindly rate this post....thanks!

Hello,

If you can see the paper start feeding in then it gets hung you can refer to this link for information on clearing jams.

If the paper will not feed in, you can try the steps here.

Hope this helps. Please remember to rate this information.

Thanks

YOU HAVE A PROBLEM WITH THE PAPER FEEDING CENSOR. IT COULD BE OUT OF PLACE, BROKEN, A PEICE OF PAPER STUCK OR PULL OUT THE DRAWERS MAYBE PAPER STUCK INSIDE. GOOD LUCK