Toner Cartridge Printing Defects: Causes and Solutions

Generic listing of toner cartridges common problems, and how to solve them.
It's not specifically relate to any particular toner cartridge or laser printer.
Repeating defects, black dots or lines, vertical black or grey lines down the pages, vertical streaks, gray pages, light print, vertical white lines, light or dark horizontal banding across the page, ghosting, gray background, random dots or sprinkles across the pages, blank print, black pages, random Lines,white horizontal lines, banding, only half page printed and other defects.
1:08 Perfectly Straight or gray lines
3:49 Large gray smears of toner across the page
5:13 Light Prints
6:06 Fine Straight vertical white line or lines
6:29 Vertical white line or lines
7:04 Ghosting: When a printed image is repeated lightly at bottom
7:58 Totally Blank Page
9:53 Too Dark Page
10:29 Gray Background Over the Entire Page, with no toner on the drum
11:35 Dark Horizontal Banding across the page, not at the same distance
12:50 Light or White Banding across the page, not at the same distance
13:30 Black dots on the right of left side of the page, at the same distance
13:50 Random Black or White dots across the page or in the back of the page
15:30 The printer does not start the printer process
16:19 Random Vertical Lines or Streaks
17:17 Only Half Printed Page
18:40 Paper Jam
18:54 Bubbly or grape-like pattern
19:33 Grey "Tire tracks" on left or right side of page
19:59 Character Voids
20:22 Cartridge makes a grinding or clicking sound - Noises
For any question or suggestion leave a comment
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other links:
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www.usa.canon.c...
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[@bigmusclemike6257]

1:08 Perfectly Straight or gray lines 3:49 Large gray smears of toner across the page 5:13 Light Prints 6:06 Fine Straight vertical white line or lines 6:29 Vertical white line or lines 7:04 Ghosting: When a printed image is repeated lightly at bottom 7:58 Totally Blank Page 9:53 Too Dark Page 10:29 Gray Background Over the Entire Page, with no toner on the drum 11:35 Dark Horizontal Banding across the page, not at the same distance 12:50 Light or White Banding across the page, not at the same distance 13:30 Black dots on the right of left side of the page, at the same distance 13:50 Random Black or White dots across the page or in the back of the page 15:30 The printer does not start the printer process 16:19 Random Vertical Lines or Streaks 17:17 Only Half Printed Page 18:40 Paper Jam 18:54 Bubbly or grape-like pattern 19:33 Grey "Tire tracks" on left or right side of page 19:59 Character Voids 20:22 Cartridge makes a grinding or clicking sound - Noises It would be be great If you added this to the description.

[@viandant5]

+The Mighty Macro thank you, I'll do it

[@halo218813]

THANK YOU!!! And might i add how ANNOYING the computer voice is on this video. Geez... ughghghhh

[@viandant5]

starter cartridges only print some tens of sheets. May be it's empty

[@viandant5]

may be the internal sponge is too old and do not reelease the ink properly, or the filter over the print-head is dirty

[@viandant5]

Which cartridge do you have? HP number 337 is am inkjet cartridge

[@garrygemmell5676]

This is one of the best tutorials on printer defects in the internet - I am an IT and electronics repair engineer and I have learned a few things from this video - Great stuff.

[@sharonchen6748]

I agree

[@alberto1105]

@@sharonchen6748 Me too 😃

[@jurban4047]

Me, too!

[@pheckphul5175]

Thank you very much for this video! I've been an IT professional for more than 10 years, but never held a position that entailed very much printer support. As such, I haven't done more than replacing toner cartridges (and solid ink, and inkjet cartridges). My personal printer at home, an HP LaserJet 4000dn, started acting up and this video helped me to diagnose the reason toner was building up on a thin strip of the drum. I really appreciate that you describe the cause of the malfunction and explain the purpose of the individual parts of the toner cartridge, and not merely state a given part is bad.

[@abdelazizbaourour9380]

Thank you very much. I am learning to become an expert in repairing all kinds of printers for a living. Greetings to you from Morocco.

[@MrBrander]

Thank you for this video. Apparently my Magenta cartridge had sprinkled the toner all over the place but thankfully not on the actual negative drum or printing drum, or whatever you call it. Cleaning all the cartridges and gears of cartridges with damp paper towel removed all those weird random dots on different papers. This video was helpful. Thank you.

[@charleshines6155]

I had the problem with gray pages. I just took the toner cartridge out of the drum assembly (sold as two separate parts) and very carefully blew the toner sitting loose in the drum assembly out (careful not to spit on it or accidentally blow the toner in my face). The prints come out clean again now. I did that outside and over the grass, there was not much toner there to clean out. It made a big difference in print quality. It made it print like it was new again. We had the printer since maybe 2005 or sooner and have only changed the toner twice. The first one was the starter cartridge that usually doesn't come with as much toner as one bought separately. Then the second one changed was another full one. I never needed a new drum yet and never had any issues with the printer other than ONE paper jam. Of course my laser does not print color but I had an inkjet and I hated that thing, inkjets are nothing but trouble.

[@ShawnaCostonPhD]

Finally, found someone on here promoting the a real fact of cartilage bewares. Thank You.

[@victorwanya3922]

This is a very good video I salute u

[@bigbiafra5288]

Thank you. My issue was that the developer roller was COATED in toner. I to clean it and let it dry and i printed a page and found out there was little to any ghosting, after printing a cleaning page and printing more, the ghosting is super faint. this probably means it needs to be cleaned a bit more or replaced. Either way, you have saved me tons, thank you.

[@preciouslife1212]

your videos are amazing and they helped me fix my problems.now it prints perfectly..thank you a thousand times

[@luiscarlosrubino]

Thanks for this very informative video. I now could diagnose the problem, there are horizontal lines of same distance on the paper due to marks on the drum. Even though these marks on the drum are very difficult to see, they cause the toner to sit there and therefore are transferred to the paper. I believe it was caused by the fact that I haven't used the printer for about one year, and the toner left on the drum, from the contact with the wiper blade or de developer roller, affected the surface of the drum.

[@slowbot68]

how you fix?

[@wetering]

This video is a goldmine, thank you.

[@AZ_sunshine]

thanks for taking the time to explain every possible troubleshooting problem. Finally my printer works great thanks to your great instructional video.

[@neerajkakar8104]

Super excellent! All details in one video!

[@jettdial4639]

Thanks for your video, I cleared my boss printer that gives dark print

[@victorserrano4902]

Thanks a lot! I fixed my problem just in 10 minutes! I was printing with a black dot.

[@saeidmeraji257]

The most unique training. Thanks for this.

[@Sukhjindersingh-hm3yu]

Good job sir ,,,,,,,,,,,, i unable to find solution for laser printer cartridge on internet, but this video solve my cartridge problem now it's working good , thanks.

[@feebleman111]

I took the toner cartridge drum out of my Brother MFC-8810DW and took it outside and lightly banger the drum on a rag to get the toner ink that accumulated in a pan beneath the or adjacent to the roller out of the cartridge. Then used compressed air to blow out this powered ink until it was gone. Turned the roller by hand and cleaned the roller of toner ink with isopropyl alcohol on a clean cloth several times, till clean Took cotton tip applicators and cleaned any surfaces I could get to on the drum, including inside the slot that the green tab runs on. Now first printed copy no longer gets a 3 inch +vertical black line on the right side of copied paper when printing from the computer, so far anyway. Seems to do the trick. Just clean up the drum. I did not take the drum apart.

[@mahmudwajed8125]

Nice description and easy understanding vedio.

[@tinaleanne8230]

Thank you for sharing. Had all that I needed to know to fix my outdated printer.

[@SireSquish]

I'll be hearing "Low quality, too old or damp toner powder. Do not store toner in a damp or humid environment" repeatedly in my head after this :)

[@simplerecipe86]

The content is very interesting and engaging, this video really made a strong impression on me!.✈️

[@patenteux]

Last missing tip: a few toners are lightly ferromagnetic. You can clean the mess with a strong magnet.

[@viandant5]

Yes but not all toner are magnetics

[@yadagiriyerra7523]

very informative for printer glitches. thank u very much.

[@ogwuchesunday195]

Good and innovative teaching

[@haroldwren1660]

I have a colour Ricoh MP C2504, never been serviced. Genuine toner, on the last 1/4 for yellow, last 1/2 for cyan and magenta. I've replaced the toner once. 25000 colour prints in total. All three color drums now have toner stuck to the drum, with light coloured intermittent lines on the page. I've tried cleaning the transfer unit and noticed the auger was a little clogged but not lumpy - didn't work. Would it be the wiper blades on all three drums are all going at the same time. No issue with the black drum or when printing black only.

[@viandant5]

could it be a too much damp environment? humidity could give such problems. cleaning a defective trandger unit does nothing

[@haroldwren1660]

There were a couple of very humid days last week when it was supposed to be hot. I suppose if I clean the drums and see if the problem returns. Thanks

[@JeffSteinmann-qz3mx]

Thank you! This fixed my problem!!!!

[@Edward-pu1wt]

Thanks. Good info. I particularly like the way the robotic voice says "carrrrrt-ridge".

[@viandant5]

my voice is worst

[@krzysyek]

I have a problem not exactly the same as shown in the video (12:50). Prints have three white horizontal bandings across the page at the same distance (about 7,5cm). White horizontal strips have about 7 mm height.

[@viandant5]

which printer?

[@krzysyek]

viandant5​ HP LaserJet 1018. And now I can see there are sometimes 4 white stripes. Depends where on the printout first stripe appears. If at the top of a page than 7,5cm interspace makes it possible to fit four stripes on an A4 sheet.

[@viandant5]

Krzysiek Krzysiek 75 mm is the drum. the defect is related to the drum. may be a broken gear, a bushing. check if on the drum there is an adhesive sheet, or if it's dirty

[@mosesachengu387]

Many thanks, Sir its very comprehensive, more courage and hoping for more videos thanks

[@Domieda-conveyor]

Im a factory for this toner cartridge , here is my web szjingyuan.onesite.alibaba.com/ ! if you need it please contact with me and added my whatsapp [phone] , my email is [e-mail] , hopefully have a chance cooperating with you Regards Hero

[@nguyenpham8553]

Hi, Thank you for your video. my brand new canon cartridge 137 black is too light. when printing small size words, it looks too light to read. The colour also seems not to be stable in every spots on the page as the old cartridge. I tried to clean the roller but it was still the same. please help.

[@viandant5]

In the printer settings there are some adjustments, quality, remove the toner save option and so on. You could clean the transfer roller

[@vasanthperiasamy6377]

Thank you, it is very professional

[@digitronixbe5588]

This is a great info!! My Samsung laser printer CLP-315 still shows a slight imprint of the last printed sheet. I cleaned everything, but no result.

[@bhaderwahvehicleades8896]

Thanks tony, Thanks a lot. Very brief demonstration. I don't got such before . Very helpful.

[@normstewart546]

Very well organized and presented, and very helpful.

[@jaydebroy7535]

Dotpot Output DELIVERY Rubber Pickup Roller for USE in KYOCERA M2040 Printers replacement pls vido

[@Sean-Aviation]

Thanks for making this video. my printer is working bad. papers come out of the printer with black strips and stains. paper no longer remains white. i see the toner dirty with black powder. Cleaned it but it doesn't improve. it keeps on coming out. does it mean the toner is bad and should be replaced? or is it something else? Its the original toner and didn't go through half of its lifespan

[@viandant5]

It depends on which printer do you have. May a problem with the wiper blade, the charge unit or a toner cartridge near the end of its life

[@Sean-Aviation]

I have the HP Laser jet 4200n thanks

[@viandant5]

Probably the problem is the toner cartridge, may be the toner is damp or too old. the wiper blades of this cartridge are made of rubber that become weak after some time

[@smart_tech_abode]

I removed the yellow cover (or whatever colour) that protects the ink from the new toner about a year ago and stored in the storage room. I took the toner out to use but the printer still says replace toner. Could it be because the ink has dried up?

[@viandant5]

+xiaocurrypuff which cartridge?

[@criticaluplink]

Your the shit. That was the problem, can’t believe it was such an easy fix. Thank you bro

[@MaximC]

Wow, this is so useful. Thank you very much. Such a great guide.

[@cristblanc6329]

nice video i learn more ..i have a question my canon np2020 is printing black print on direct and enlarge......but when the copy is reduce its ok....

[@viandant5]

+Crist Blanc I think you can try to regulate the corona wire on the drum unit. there are 2 screws on the 2 sides, you'll find a video on this channel

[@cristblanc6329]

+viandant5 thanks......

[@yasinfrei]

Is it really called a doctor blade, or is this a translation mistake? And in the end you mention a lubricated blade, that wasn't introduced in the beginning. This is a very good video from an expert.

[@viandant5]

yes it is called doctor blade

[@mahaveerinfotech7623]

you have done a great job best of luck for future

[@Wofayaww]

Thanks for the video sir. I’m using hp laser jet M577 mfp, I print out today and saw dark spots on my print out sheet, what could be the problem? And also I removed the drum and saw something like dirt on the drum.

[@viandant5]

Are they repetitive defects? At which distance? May be the drum is dirty or damaged

[@Wofayaww]

okay, thank you. I fixed it, I really appreciate, sending love from Ghana, west Africa.@@viandant5

[@josephsouffrant1453]

What if the streaks on the paper are from all the toners CMYK - Are all the toner cartridges defective or is it another problem?

[@stefanoscarpa9513]

3:42 Lines in the drum surface Brother mfc l3750 only on the black. What should i do? Thanks a lot

[@viandant5]

Clean the corona wire of the black drum unit, check the drum if there are lines on the surface

[@M-DIY]

I have a minor problem, my prints are a bit grayish with minor horizontal fine lines, earlier prints were jet black. I am using hp m126 nw printer with 88a introductory cartridge that has been refilled for first time.

[@viandant5]

I would start to check the contact of the magnetic roller, or the bushings of the magnetic roller.

[@M-DIY]

viandant5 bushings of magnetic roller earlier had some kind of lube (silicon lube maybe) but when I refilled some toner got stuck to them, so I cleaned them with a soft cloth, they are now clean but unlubed. Where are contacts of magnetic roller?

[@viandant5]

magnetic roller bushings must not have lubrification. the contacts of the magnetic roller are on one side of the magnetic roller, those metal flags. may be theu are bent

[@M-DIY]

Thanks for help, everything is okay, I even relubed the bushings, check every thing. The problem is toner, I mixed old toner with new, I guess that is what is causing the problem.

[@MJ-rr4hd]

I have a hp 12A cartridge . its printing fine. the front side is clear, but on the back side , its making 2 vertical lines on the back side. when I insert another cartridge its fine.

[@viandant5]

It's strange. May be the Primary charge roller of the cartridge, or a loss of toner of that cartridge

[@MJ-rr4hd]

@@viandant5 could there be a leakage of toner? maybe the toner powder leaks out and touches some small rollers inside the printer? its so strange.

[@viandant5]

@@MJ-rr4hd It's strange, it should be a printer problem, not a cartridge problem. may be the toner powder contaminate the transfer roller

[@MJ-rr4hd]

@@viandant5 I just changed the drum, and that solved it. totally unexpected. that doesnt make sense to me. what do you think.

[@viandant5]

@@MJ-rr4hd I understood you changed the cartridge and it was fine. However a defective drum probsably could dirty the transfer roller, causing a defect on the back of the sheet

[@grumotey]

Thanks man, it really helped! I appreciate your work, video is highly detailed

[@penangtv6108]

My problem was that the toner was clumped & not being applied onto the developer roller. I solved it by running a the corner of a clean A4 paper into the slit behind the roller. No need to remove the roller. You should be able to slide the paper into slit/mouth at the back compartment of the roller where the new toner is stored. This problem happened after I refilled & living in a humid place, the toner powder clumped & blocked the slit. My printer was printing very faint half pages. Very similar symptoms with the drum ground contact fault & low toner powder fault IE not enough toner being applied to the paper . Ricoh 311 printer. Hopefully this helps someone. 😀

[@wavytey]

0

[@sayaanistoreandservices1539]

a lot of unseen dots or particles will be there, that can be seen when you use a polymaster for offset printing, what would be the solution, i changed both the drum and blade and the toner as well. but the persists, can you help

[@zaidacity2788]

Respected Sir, My Ricoh MP C 305 is not loading black toner, please help me in solving this issue Thanx for giving me your precious time.

[@viandant5]

What do you mean? It's printing blank pages?

[@zaidacity2788]

@@viandant5 Thanx for your response sir. No, Sir, not printing at all. "Black toner not detected" message is there.

[@viandant5]

Is it a compatible cartridge? This cartridge has a chip, may be it's defective

[@zaidacity2788]

@@viandant5 Thank you sir, and I will check it.

[@yashkushwaha5979]

Hey viandant5, Your video is very helpful but after refilling, replacing OPC drum and cleaning the internals of the toner cartridge, I am getting vertical lines on the page at the one end. Also, the paper from the back is also getting dirty. There are no misprints and the OPC drum becomes dirty after printing. I am using Samsung ML2161 printer with MLT101S toner installed.

[@viandant5]

it's difficult to say without seeing the cartridge. Are you sure of the quality of the toner you used? did you remove the doctor blade? it's easy to damage it. is the wiper blade ok?

[@yashkushwaha5979]

@@viandant5 yes, I used the same quality of toner I used before also,I carefully removed the doctor blade in order to clean it.The toner cartridge has done around 4900 pages. So the wiper blade has a slight yellow tint on it but I got it inspected to a professional and he recommended to use the same blade.

[@viandant5]

@@yashkushwaha5979 did you clean the cartridge before refilling? mixing toner could cause background. a yellow wiper blade probably is an old wiper blade, are you sure it's ok? if you print images or full sheet text, after 4000 pages the cartridge could be nearly empty

[@yashkushwaha5979]

@@viandant5 Yes, I did cleaned the cartridge prior refilling.And the 4000 pages is complete lifecycle of cartridge so far with multiple refills.I refilled it recently and It was printing flawlessly but after few pages it started giving problems.I'm not sure about the wiper blade.If you provide me your mail ID I can send you pictures of the wiper blade and the pages.Also, Thank you so much of helping me in advance.

[@viandant5]

@@yashkushwaha5979 [e-mail]

[@mattmarkus4868]

What about blurry or fuzzy text on the printed page? What might that be? We changed cartridges and the prints are the same.

[@viandant5]

It depends on which printer do you have. may be the fusers, or the transfer roller

[@Jon13Games]

what causes side to side shading? Dark in the middle but slightly lighter on the sides.

[@viandant5]

It depends on which printer do you have. may be the problem is the toner cartridge

[@Moro13th]

thank you for your excellent illustration, but I have a different problem and I'm not sure about the reason. the problem is a grey area (about 0.5 cm) is appeared in the upper right side of the paper only when I use duplex. The single side printing is perfect but the problem raised only with duplex. . my printer is Samsung SCX-5635

[@viandant5]

+Ramy A Mosa it's difficult to say, probably a damaged or dirty paper feed roller. try cleaning them with alcohol

[@SireSquish]

If this only happens with duplex it suggests something dirty/defective where the paper redirects for duplexing; so one of the duplex rollers maybe?

[@ginaiannucci]

C1810w xpress Samsung printer. On black and white prints a very faint horizontal cyan lines. On color prints cyan lines horizontal. I returned the “defective toner” (not after market) purchased at reputable office store chain. Replaced with another new cyan toner. Cleaned roller. Don’t see any sign of cyan toner anywhere in machine. What is problem?

[@viandant5]

which roller did you clean? a single line could be the transfer bel unit, or a toner cartridge with defective drum. a small defect on the drum could cause a short cut between the drum and the charge roller

[@diraodetcidda6717]

Thank you so much, you helped me

[@francoish9641]

MERCI beaucoup pour votre vidéo qui m’était d’une grande utilité.

[@alphaomega7891]

My LaserJet 4100n now has grey output. Transfer charge roller inside the machine is covered with toner. If I clean it, I can get 20-30 good pages, then grey background returns. **Tried a new cartridge (same manufacturer & [2017] vintage as cartridge it replaced) and get 20-30 good pages then problem returns. Try another new cartridge? Or.....???

[@viandant5]

check if there is toner on the drum. may be the wiper blade is too old

[@a4-driver917]

Hello, nice video and channel. I have a Vertical white line or lines problem in a Brother MFC-L2710DW but it is not happening all the time. If I print 1 page, 2 o 3, it is ok. But if I print 5 or more pages of a larger document, the page number 5, 6 and then the rest, show a vertical and clearer band or stripe, always in the same side of the impression. I have clear all the printer and the change drum and tonner thanks to all your videos. What could be happening? The printer have only 3 years old. I was thinking of some dirtiness in the laser unit but it is not easy to access to it. Could you give me more ideas please? Thanks for your help.

[@viandant5]

Are you sure the toner cartridge is ok? Is the toner roller evenly covered with toner?

[@a4-driver917]

@@viandant5 It has been already changed for a new one. It is completely covered with toner powder. Drum also changed. I have cleaned it completely. Thanks for your time and help.

[@viandant5]

@@a4-driver917 It could be the fuser unit. When the fuser is cold the copies are good, but after a few pages the rollers become hot and you have the problem

[@axelsenn920]

Thank you so much!!!!!! Really helpful video. Saved me a printer.

[@ericrosales9722]

How about the bottom left corner(about 1cmx1cm area) of the page appears the ink wont stick enough and has loosened off, thus the ink appears as if it was dabbed with a sponge and not solid-looking.what could be the cause?

[@viandant5]

whitout knowing which is the printer it's difficult to say. May be te fusers

[@ericrosales9722]

@@viandant5 ricoh SP 3510DN. The problem usually just appears when there's less than a centimeter of margin and mostly just the bottom left 1cmx1cm corner. I also notice along the left side within the 1cm margin region, there appears to be sporadic "loose" ink that smears off after the page has been stacked with other pages. The test page looks fine except the said 1x1cm bottom left corner has the "loose" ink. Otherwise, in normal pages with 1" margins, the problem won't be seen. The printer has 170k+ printed pages total and both fusers and rollers are "empty" on the printer resource page report. Toner is about 75% full.

[@ericrosales9722]

@@viandant5 Ricoh SP 3510DN . The problem seems to affect the page within the first 1cm of the left and bottom margins. The "looseness" of ink appears worst at the bottom left within the 1cmx1cm area and reappears about 3" above that then another 3" higher then the problem almost no longer appears in the upper 1/3 of the left margin area. A normal page with 1" margins would look quite flawless as far as i can tell in a normal text.

[@KhurramNetcafekhurramnetcafe]

good work

[@dominikgarstka2826]

Great video. I have a slightly different problem with my Sharp MX-5070N - it seems leaves gray vertical trace along the whole paper, that seems to be remnants of the previous printout. I saw now some text from previous printout on the subsequent graphics-only printout. Usually it's just gray smudge, that gets lighter with each subsequent printout, but this time it's clearly faded text. What is the cause? Help! I spent $2.5k on this printer :-(

[@viandant5]

Check the drums and check it there is a vertical line on one of them. It could be also a fuser unit problem

[@dominikgarstka2826]

@@viandant5 Thank you ! I run another experiment - there's a specific ~1inch wide area that shows the problem. The ghosting is regardless of the color - I tried print the are in C, M, Y and K and saw ghosting in respective colors. Would that eliminate drums as suspects? (scan of the test printouts: drive.google.com/file/d/1X161ZYfCquL2v-byNzB_wI3SsR5WD9IR/view?usp=sharing)

[@viandant5]

I understood there was a vertical line. if there are vertical faded smudges the defect could be related to the fusers. the ghosting is a typical problem of the fusers.

[@willcolmenares]

Hi, great video, i have an issue with my canon 1023, i bought a new toner cartridge cause it gaves me an error of out of toner with my old cartridge, so bought a new and after install it gives me the same error, i've removing the seal correctly, and i can see the magnetic roller full of toner, same as the developing unit, what can it be? Sorry for my english.

[@viandant5]

May be the toner sensor inside the developer unit, but first of all start cleaning all contacts and inside the printer near the toner cartridge and the developer assembly

[@stvie3]

2:19 repeated spots at same dist 3:50 grey smears 5:12 light areas 6:04 vertical lines (white) 7:02 ghosting (image repeated lightly) 13:30 repeated black dots near edges 13:50 random black sprinkles 16:18 vertical black lines or streaks ^ (that's the problem i had so i stopped watching)

[@earring5288]

Hi there, I have a trouble with my printer. I watched your video, but I cannot find my exact problem in it. My printer is a Brother HL-2040 series (laser) printer. When I print the "test print quality" page, the ink on the page is fine, but there is always excess black/gray dots or smudges on the sides of the paper. The dots are packed rather densely, but mainly show up on the right and left sides of the page, especially the left side. I do not think the dots are evenly spaced apart like the two criteria given in your video. They appear somewhat randomly, but are on the left and right margins only. I tried cleaning what I thought was the drum, but there seemed to be a lot of black ink being wiped off, so I didn't want to wipe off all the ink. Unlike your green drum, mine is black. Also, I noticed a bend in the middle of developer roller sealing blade, but I don't see problems with lines, so I do not think that's it. What do you suggest I do?

[@viandant5]

I think you have to change the toner cartridge, and before reinstalling the new toner cartridge you have to clean the drum surface with a soft cloth. Brother technology put the waste toner inside the toner cartridge through the drum, so if you use a defective toner cartridge the toner on the drum surface may contaminate the new toner cartridge giving background during the print

[@earring5288]

Thank you for responding! The thing is, I changed the toner cartridge maybe 3 months ago, and the printer is not used often. Also, when I print the test pages, the text on the page is clear and crisp, which does not indicate low toner. The issue is the toner specks/dots on the left and right margins. :( I will try checking the toner again, and will also try cleaning the drum surface some more. When I clean the drum, should I keep wiping it until no black toner comes off? Or is it supposed to have some black toner at all times?

[@viandant5]

The drum is not in the toner cartridge. Do you mean the developer roller?

[@earring5288]

Hmm, I don't think I mean the developer roller. In the Brother HL-2040 laser printer, the drum part is right next to the toner cartridge. When I take the toner out of the printer, it comes attached to the drum unit, and I have to then press a lever so that I can remove the toner cartridge part and actually see the drum.

[@viandant5]

Toner cartridge and drum cartridge are separate units, obviously they have to stay close each other. you should keep wiping the drum with a soft cloth until no black toner comes off.

[@oladapoerikitola5898]

Hi! Thanks for the video. My xerox 6027 will print perfectly but making copies would result in half the page completely blacked out. Do you have an idea what might be wrong?

[@viandant5]

I think the scanner under the glass is dirty or defective

[@rafaelepelde2495]

Excelente video 👏👏🔍 una gran ayuda para los técnicos 😎 gracias

[@YoStu242]

My Samsung CLX 3305W is workng fine otherwise but when printing apparently leaks small amount of black toner on the table from the bottom. Is this because of faulty cartridge? Black toner is getting low but I'm going to print as long as it still prints

[@viandant5]

on the table from the bottom you mean you found toner on the table? It could be the internal of the printer dirty

[@aneeqmalik6864]

Sir i have printer Cannon 6300, it has problem, ink don't stick to page. And middle vertically two white lines appear and by touching printed page , ink removes. But only 1st two or 3 pages have this issue. Next pages print fine

[@viandant5]

It could be a fuser problem. Check the fusers, are they dirty or worn?

[@aharz1]

I have an OKI c821 laser jet printer, mainly used for printing on T-shirt transfer paper size A3. It has developed a single short horizontal line on the prints. It's always in the same place, possibly blue, bottom right hand side, 8cm long starting from the edge and about 3cm up from the bottom of the page. It does not repeat up the page so I really don't know what it is. If it was the blue drum wouldn't it repeat up the page?

[@viandant5]

+aharz1 it's difficult to say, probably it's not the drum but it may be related to the drum unit. it may be a bad contact into cyan drum unit, or it can be the drum with a defect and the charge roller discarge though that defect

[@rainbowprintingpress2084]

Thank you for the solution given in the video. My problem has to do with light print. I have tried all your solutions on light print but it is still the same. Idk what I am doing wrong. But I observed that as I continue printing the print becomes brighter than the previous. But it does not become bright like that normal brightness. I will be very grateful if you help.

[@viandant5]

But which printer?

[@nagimesishuaibuk2519]

good lecture

[@lenincahuasqui3284]

Hi viandant5, I have cf210a 1/2/3 and Doctor Blade spreads powder in 2 sides, but not in center. This problem repeat when like use SEAL(for full re-manufactured). What do you think?

[@viandant5]

+Lenin Cahuasqui may be the side felt are compressed, try rough them up using a small screwdriver. but probably the foam of the doctor blade is in wrong position

[@scyfox.]

ASMR voice... I almost fell asleep waiting for a probable solution for my issue

[@ZubairKhan-vs8fe]

Hi. My printer prints little squiggly circles randomly only on the first page. Tried different cartridges. Any idea ?

[@viandant5]

Which printer?

[@mikenaylor2889]

I have a brother 9840 that is leaving blotches of magenta along the left margin ... listened to the video and suspect the recovery blade is the problem .... do you have nay other insights?

[@Jewells001]

If its an edge, its more than likely drum wear as it starts generally at one side (short edge of A4)

[@vanzijlp]

Great video. 5 stars!

[@niranjanbhuta]

I transported my HP 1020 printer (with cartridge in the printer) by car with a journey of 2 hrs. Lately I found that it is leaking very much without stop even into the printer. I removed it from printer. Will you pl tell me what could be the cause and solution. Thanks for your video that taught me detailed theory of laser printing.

[@viandant5]

A cartridge without the seal may lose toner. when you transport a printer. it would be better to remove the cartridge, keeping it in a dark place since the light may damage the drum. Do not use air compressed to clean the printer, use a cloth

[@niranjanbhuta]

thanks a lot

[@balusrinivasan8699]

Have a Samsung M2885FW which prints four equidistant horizontal lines. Cleaned the drum etc but does not help. You have covered vertical lines but not horizontal lines. Any suggestions ?

[@viandant5]

They are repetitive defects, it depends on the distance of the defects. I have a video about repetitive defects

[@bilalamin4458]

I have Panasonic 8032 workio photocopier. I have to add manual toner by opting the option in function menu again and again to get sharp and proper print as the print gets dimmer and dimmer after i take 0-100 prints. What should do it seems that machine is not taking the toner automatically from toner cartridge and there is enough toner in cartridge.

[@viandant5]

probably i haven't understood but adding more toner does not mean to have sharp prints. probably the problem is in the drum, ot magnetic roller

[@cristinacruz6493]

Thank you for this video!!

[@jesusnavarro5326]

Hello need some help with my lexmark X646e COPIER i tryed 3 new difrent toner cartridge, and even changed scanner and charge rollers, high voltage card .etc etc and still the same problem. the copy total black page and no image at all. and if isend a page to print from my pc it will print with a very dark black background, and bad quality allmost black too. do you know whats the problem here? need some help please thank you

[@jagdishrokhale5497]

Sir what is the lubricant used on doctor blade/wiper blade in Q2612A cartridge please reply in English.

[@viandant5]

A bit of toner will be ok

[@gbxx6692]

this is a good diag video, but most people won't have replacement parts on hand until they go through a few cartridges.. then they can salvage spare parts in working order

[@praveendavis]

my catridge is giving very thin letters print. lines are not geting printed. I have replaced tge drum and no change.!!! please advise what may be the problem. my guess is that the blade is to close and enough toner is not getting to drum.

[@viandant5]

+Praveen Davis without knowing which printer do you have, may be the problem is the developer roller. clean the developer roller

[@anthonyiwueze429]

Tanks,this video was very helpful.

[@im19922000]

Can any toner be used in any cartridge? I have three brother printers, can I buy brother toner and use it for all three or do I actually need to get three different types of toner specific to each one?

[@viandant5]

it depends, often brother toners are similar

[@arlenek6797]

I am getting red line on the right side of paper. How do I clean this? Thanks.

[@viandant5]

Without knowing which is your printer it's difficult to say. may be the magenta cartridge.

[@PRmoustache88]

We have a laser printer where a crudely written '!' seems to impress itself as the rollers turn about. I keep thinking someone crudely impressed the '!' into the drum roll or the charge roll. People are too timid to say that it was vandalism, but the '!' looks too articulate to be a random artifact. I live in an apartment community, and I suspect the mark was purposely imprinted onto a printer part to cut down printing costs. Is it possible to vandalize a laser printer to do this?

[@amitsingh-li4ji]

hi there , i have konica minolita 1600w printer, i refilled the black cartridge for first time, after refilling i found that the drum is hard in moving as compared to other cartridges, because of this printer is printing blank page., any solution please

[@viandant5]

Minolta 1600w toner cartridge does not have drum. do you mean developer roller?

[@anavadyas6364]

Bought a new cartridge. On printing, the ink is spreading in the right side of paper. I'm getting a half printed page with black right side. Should I return the cartridge?, Or any hope?

[@anavadyas6364]

Printer is hp laserjet p1106

[@viandant5]

probably you should return the cartridge. I think the mylar under the toner roller is defective or detached

[@alexmendez9627]

Thank you so much for this very useful video!!

[@thimmaiahkk3709]

I have a problem of gray background over the entire page and i had cleaned every rollers in the cartridge and replaced with new drum but there is no use there is still gray background........... please give me the solution and suggestion..

[@alanmelapat1984]

@viandant5 the right and left ends of my doctor blade is damaged {minor serrations}, hence I get vertical white lines on right and left margins of my print out. I had hardly used that part of the printer since all my printouts were with margins 1.5". Is there any option of getting the part in the market..my printer is Konika minolta pagepro 1500w . Anyway thanks buddy for the video, it helped me diagnosing the problem.

[@viandant5]

That cartridge it's the same as Brother TN-2010/TN-2220, may be you can find it searching for Brother part

[@Sandeep-op1sb]

There is a line at one side of paper which is due to drum, if i change drum i get a very good printout. but i can see a line again at the corner of nwe drum. I think the cotton which is use to clean drum is not bad, could you please help me to replace it ?

[@viandant5]

+sandeep verma without knowing which cartridge you have, may be a defect on the magnetic roller, the bushings or a problem on the charge roller

[@cheezwhizvids]

I love your rich baritone voice

[@PhantomPanic]

Do you mean the text to speech robotic voice?

[@tinkerer7387]

Viandant5, I have a Canon MF4350D Laser printer. The drum has a dark thick black line on the opposite ends of the drum. I wiped it with a soft rag, printed again, and there's still a line on both ends of the drum. Do I need to buy a new drum or blade or is it cheaper to buy a new printer? Your insight would be appreciated very much!

[@viandant5]

+Tinkerer I think the problem is on the magnetic roller. you have to open the cartridge and wipe the magnetic roller. however, compatible cartridges for this cartridge are very cheap