My advice is self-learning. Why do you say that
Because i was an apprentice and found an interesting phenomenon, printer maintenance is a highly aging industry, with the majority of practitioners after 70 and after 80, with a low proportion after 90 and after 95, and a much lower proportion after 00。
You're probably going to meet an old man who's not so bad as to be subjective, but an old generation who treats people in a way that is completely different from the current generation and creates intergenerational contradictions。
It may have been normal in those years to insult physical assault and to treat poor quality as a matter of course。
My experience
I used to work at the store where i wanted the printer. The boss's brother's name was he, and we called him "master he." master he, born in 1972, dry printers were up and running for 30 years。
He said that he had come out of society before the age of 13 and a half, that he was a man who had experienced a storm, that he had travelled through the south, that he had practiced his legs with tyson, that he could move bricks, that he could spend the day with the sun。
He was also told that he had been in a military factory when he was young and boasted that he could repair rockets and missiles, which were tired of repairing them and came to fix printers。
At first, i really thought the old man was very good, and he should be very friendly。
Until one time, a colleague tried to break jiacan 2900 while he was away, and he just took the screwdriver and returned。
Question: what are you doing
Co-worker: i'm fixing the printer。
Ha: you can fix the mud next door! Get out
My colleagues are standing there, overwhelmed。
As soon as i saw something wrong, it made me realize that, for the time being, the quality of the old technology was at least low, probably because of the low level of education。
I thought the old man was scolded because his colleague was new and feared that he would break the machine。
Later, i realized that the old man could only fix jia-in 2900 and hewlett-packard 1020, and he couldn't figure out a more complex machine. He was not educating the new man, he was feeding and afraid that someone would take his job。
Hp1020
He could not even repair a machine such as fuscillox 158b, and he could not even do so. He could not even pretend to be forced and failed to do so。
At the time, a client who bought a fuscillian docuprint 158b, added carbon-compatible powder to the client, turned out to have a light print. When i looked at the machine, the error was 092-651, and it was clear: because of the third party's lack of carbon powder, the "carrier" in the studio ran away。
Fuji xerox 158b
(simplicitly explained: there is not only carbon powder in the studio, but also small particles called "carriers" to carry carbon powder. If the compatible powder-carrying properties are not correct, the carrier will also be consumed, the final concentration will be insufficient, the colour will be lighter, and errors will be reported
The performance of master he
As a result, a few of us young men were too scared to move, and master he came by in a cold smile, with a screwdriver in our hands, a moustache, a half smoke in our mouths, and a nostrils of “you can't”。
"90 later, the next generation is worse, and this little machine won't fix?"
"and retreat from suffering, without responsibility!"
As soon as the voice came down, master he began to act, poking out the smoke and pulling a screwdriver。
We watched the shock, thought we'd learn to live, and less than half an hour later, the machine that could have printed the words, was not open to him。
It wasn't him who did it, it was him who did it:
"don't you listen to me if you don't move! Don't open it
I almost laughed: how come i broke the screwdriver when he had it all in his hand and i didn't even touch it
Since these two events, the old greeting has become a foodless and bad name, and i have been leaving for a while, and since then i have been learning to repair the printer myself。
Self-learning process
In fact, self-studying printers is not difficult, and if you want to learn, you can look at my experience, roughly in six stages。
Phase i: study of printer principles
Laser printer workbooks have been published before, and you can read them yourself, search them online, or read the printer maintenance manual, many of which have principles。
You have to figure out how the paper goes in, how it comes out, how the image comes out and how it doesn't. That's the point。
If you can't read the maintenance manual, you can send it to cha gpt or gemini, and ai will give you a detailed explanation. Now, in the ai era, the learning threshold for printer theoretical knowledge is actually very low。
Phase ii: dismantling of americ drum instead of a printer。
This is a basic function, and although it is now almost empty, it is a direct change of selenium drums, it is not painful that the simulator drums can exercise your ability to do it, as well as assemble your thinking, and that the structure of the silt drums can provide an overview of the printer's imaging process by observing its structure。
Start with the simplest and cheapest selenium drums, such as q2612a or c388a, which have few cheap markets and are found everywhere, even in garbage cans。
Phase iii: decommissioning low-end machines
It's best not to start dismantling complex machines at once, like fuscler 158b。
It is possible to practice basic machines, such as jiahan 2900 and hp 1020, without recommending the purchase of normal machines, to buy end-of-life machines in saltfish, and to start practice with a one-time purchase of 10 or 5 of the bulk of the end-of-life machines。
Canon 2900
There's a lot of video on this kind of machine network, and there's no need for guidance. When you can decipher the type, it's basically okay to fix low-end a4 laser printers。
But after this low-end black and white machine, if you're going to learn a more sophisticated powder separation machine, you're going to have to take down a brother printer, like hl 2140/2240, but if you're going to fix 1020, it's only a matter of time。
Phase 4: high-end a4 black and white laser exercises
When you have complete mastery of the low-end black and white machine 1020/2900/2140, you can start with a medium-high-end black and white machine, starting with hp1606, which is not particularly large with the 1020 structure, but is a back-up double-faced device, a c-type paper track, which can easily understand how it moves and the workflow。
Brother 2240
When you have it, 1606 will continue to move towards higher machines, such as the hewlett-packard 401/403 machine, the s-type paper-lined double-faced machine, which is more complex than that of 1606, and 403 is more complex than the double paper-gate structure。
Hp 401
Having mastered 403/401 of these machines, it is possible to proceed with the study of high-speed a4 machines such as hp501/601, in particular six series printing at the fastest speed and with a more complex structure, when you have mastered the six series, you can basically eat the vast majority of a4 black and white laser printers。
Phase v: exercise of low-end colour lasers
If you have completed phase four, you can start phase five, and start dismantling the colour laser printer. It is recommended to start with the simplest machine, e. G., hp1025 or 7010c, and tristarclp320。
Hp 1025
Colour lasers are much more complex than black and white lasers, with only one set of imaged beryllium drums, while colour lasers have four sets, black and white lasers are reprinted only once, colour lasers are reprinted twice and dismantling is done with greater care。
These entry-level colour laser structures are simple enough to be effective. The key is that the market is large, that saltfish can get to the end-of-life machine, that there are enough machines for you to learn, and that the trials and exercises continue。
Colour lasers are more or less the same as black and white lasers, as long as you learn to fix low-end machines, high-end machines as long as you're careful, have maintenance manuals, and you understand printer principles。
Phase vi: exercise of introductory level a3 printers
Again, as in the past, normal machine practice is not recommended. A the introductory level is suggested to start with an introductory model such as hp5200 or 3500, because such a machine has no carrier and is sufficiently simple to be understood as an amplified version of hewlett-packard 1020 or jia 2900, which is particularly friendly to new hands。
Hp5200
Once you have mastered these non-carrier machines, you can try to practice entry-level photocopiers, such as those such as fuscler 2011/2110, which have carriers and structures that are more complex than the hewlett-packard 5,200 because of the photocopying and double-sided scanning functions and the later stages involved a higher repair threshold for replacement carriers。
At the same time, photocopiers, even scrap machines, are expensive and costly to learn, but the general principles are the same, and photocopiers are more modular and have a limited budget to pick up low-end machines first。
Shrink 7502
Later on, i had the opportunity to pick up the high-end machine, i had it in saltfish, conicamén to c364/360/363, i had it in fuscowc3060/3065, and i had it fixed to rent it and became my cash cow。
Summary:
If you really want to do printer maintenance, you don't have to go to the master, and now there's a lot of material on the internet, a lot of various shredder videos, and now it's the ai era, the printer theoretical knowledge ai is more detailed than most people。
Small printers are maintained by observation and large printers by code. The search code needs to be repaired and the pedagogues can be bought, and it usually costs a dollar, buys more scrap machines, breaks more, fixes them up, sells them, can't fix them, and the tuition is still taught。
