Перейти к основному содержанию

Repair guides and support for HP's LaserJet Laser Printer Line, which includes printers with model numbers starting with LaserJet, LaserJet Pro, Color LaserJet, P, M, CP, and CM.

Вопросов 174 Показать все

HP Laserjet 2055d leaves two black marks at the back of the printous

my HP Laserjet 2055d leaves two black marks at the back of the printouts.

i have completely replaced the pickup assembly unit but with no avail.

anyone can help

Update (01/18/24)

but just wanted to let you know that i have already tested several toners.

i also have completely replaced the whole pickup assembly picture attached.

and have cleaned all the rollers inside the machine.

Block Image

Block Image

Ответ на этот вопрос У меня та же проблема

Это хороший вопрос?

Оценка 1
3 Комментариев

@nick what do you make out of this? Roller assembly issues? @shockwell let's see if the printer guru can help you out with this.

из

but just wanted to let you know that i have already tested several toners.

i also have completely replaced the whole pickup assembly picture attached.

and have cleaned all the rollers inside the machine. [image|3199582][image|3199583]

из

The HP Laserjet 2055d, much like a skilled artist, uses an intricate interplay of components to create its prints. At the heart of this process is the toner cartridge and the transfer belt2. The toner cartridge contains the ink that the printer uses to create images and text, while the transfer belt helps to apply this toner evenly across the page3. If either of these components is damaged or malfunctioning, it can result in unwanted marks appearing on the printouts.

из

Добавить комментарий

Ответов (4)

Наиболее полезный ответ

This is usually a drum issue or a fuser issue. The cheapest way to troubleshoot this is to try a new toner cart if you see clear evidence of a fault warranting it, but this isn't always the best way; my M401n did something similar with a non-HP toner and it resolved with a new toner, but it was a clear failure of the drum. It turns out both my test toner (a end user refilled abomination I got with my backup M401 I have since thrown out because it was done such that they refilled an 80A without likely dumping the waste toner); see here: Image ghosting - what caused this?
I neglected to update it, but toner fixed it. You want to check for drum defects and evidence of leaks.

Bad toner (came out of my Lexmark color laser, but this defect is universal):

Block Image

Good toner:

Block Image

If the issue persists or it's too unclear, do a "halfway test" -- run a test document, and pull the paper before it can fuse. If you do not see the defect, the fuser is pressing it into the page; likewise, if it's there, the fuser is fine and the toner is bad; it could be something like the wiper blade or other rollers like the sponge roller causing the defect to occur. However, it's usually a problem with the toner causing it before due to a minor issue that's not severe enough to put a toner cloud inside. Since this is on the back, handle the page with extra care as the toner has not yet fused to the page. Use as little complexity as possible considering this.

Был ли этот ответ полезен?

Оценка 2

3 Комментариев:

thanks alot for your response. I will check them out and keep you posted on the results.

из

@shockwell It may also be caused by other front end parts of the printer like the foam roller, but unlikely since you changed the entire front pickup assembly. It's much rarer than a fuser defect but it happens.

You *SHOULD* be able to open the back cover to better confirm a fuser issue because they have a trap door that opens separately for flat prints from the full jam door. Open the secondary door if the back of that p2055 (if it has one), and observe if it happens after the paper passes through the fuser, especially if you do not see any glaring issues with front side registration components. The M401 has it and it's essentially the p2055's younger brother.

If you do find the fuser is the problem, compare the PC to the used market for p2055d/dn and M401dn/de (dn=color touchscreen/de=2-line "stripped down" version; shares baseline LCD mostly used on the M401n); if it's in line and the fusers are cheap, it may be worth it; otherwise if this has 150k pages and you can buy a young M401dn, it may be a toss up. I say to look for something of this lineage used because it was before HP loaded them with garbage like the HP DS firmware (M402-present) and HP+ (very recent, permanently blocks 3rd party supplies) with the same Canon print engine, making it worth just buying the machines from Canon if you like how these have the drum in the toner. Yes, these are a Canon print engine with HP firmware (Canon sells HP the engine, which puts their firmware on it and has the toner coded to only work in the "HP" version). Canon's version doesn't do anything but nag, HP blocks 3rd party chips.

из

I tested everything. the fuser is ok and i used brand new cartriges. so the drum and relsted thigs are ok.

the funny thing is that when i use first tray the printout is ok and only the paper in the bottom tray get these spots.

thats why I think the fuser is ok

из

Добавить комментарий

I tested everything. the fuser is ok and i used brand new cartriges. so the drum and relsted thigs are ok.

the funny thing is that when i use first tray the printout is ok and only the paper in the bottom tray get these spots.

thats why I think the fuser is ok

Был ли этот ответ полезен?

Оценка 0
Добавить комментарий

this is a video of the printout

Был ли этот ответ полезен?

Оценка 0
Добавить комментарий

solved

I finally found what was causing the problem

***the faulty part is registration assembly picture attached

Block Image

***

Был ли этот ответ полезен?

Оценка 0
Добавить комментарий

Добавьте свой ответ

Saman будет очень признателен(а).
Статистика просмотров:

За последние 24 час(ов): 0

За последние 7 дней: 1

За последние 30 дней: 5

За всё время: 162