Inferno #09
31 июля 2006 |
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Repair - The story printer repair DAEWOO DP-2210.
Incurable problem or Seeing the printer into another world ... Once upon a time, by fate, met with one student radioinstituta - Slava. Common theme was the Speccy. I prodemonstrival him a few modern programs and Glory Islands, for the good old memory, bought himself Tower (Pentagon 128, a vertical glands dimensional case). The system was defined logical problems, despite the overall good performance and excellent state of the board. Later Glory gave me this PC to finalize, and then did gave! During this Slavko many thanks! I modified the scheme, and hung all the standard nye details, plus the original tape-Inter Faith (Article not yet exist), turbocharged SH, something corrected (logic IU loch), hung the original kempston (one hundred Chi has not yet been), yet the original rgbstrob (no artifacts - all ideal) and a unique CMOS zvukosmesi Tel Aviv, followed by "hunting" mr.cr0acker, and I still have not written the article. Received almost standard and not a fancy Speccy, and though at first I had to catch Nesco lko disappears and dangerous bugs now This system helps out me! Transformer block let not the most stable, but still ve sma compact, and only 35 watts. It I everything I write. The only thing I did not bring - a LPT interface and print use old computer (Babe Steve Gibson'a / ADG). I was recently rescued by Magic. I forgot for cover drive its beak, and filling in the table characteristics of diodes, has decided to continue and system hangs ... Again, fill out? Well, I do no ... It is better for a change, move remaining brain ... I put in the game drive for shipment states through Magic, and pressed the "magic" button. All of the successful written. With the help of RC, I found a typed table, create a file, copied to a disk text, and restored the status of the disk to tropy 0-th track, made of once before. Had only to join the files in the editors pe. So Magic is sometimes very helpful! Old printer Slavka went to Moscow to work, we so very rarely seen, but - once again - he gave me his printer. He has to the time came the old Mac, and I was glad to get acquainted with this miracle - the system I really liked the theme, reminded Amiga and all the good things that often accompanies simple, not powerful systems. Surprised the screen landscape type (Estimate: Tube shape - A4 sheet). Slavka again went to Moscow sometimes visiting the Ryazani.On going to marry Xia and live in the city of his bride, but the body backgrounds (sotikov) if we did not have, and the associated zatsya we can not (although it now is). The printer was very old, obscure, it seems the Japanese are firmy.Imenno was once imported and placed in all sorts of institutions of. Matrix, band, with powerful heads Coy, A4, with an inner trance and pulse com in the secondary housing, on-chip STK. But the test of go ... A little broken (paper output not pressed), fell twice (and Slavka, and I have) and I did not know how much it will stretch. DAEWOO DP-2210 on slightly nedosobran components, and, probably, so there is no sound but there is a USB flash drive (and suddenly even the ferromagnetic Naya memory?) and no company can cause state of the system (when you turn on something there harvesting) and change the settings that storage nyatsya without pitaniya.ERROM standard series, 32 feet, I do not know what in this volume by stuffed ... But I admit that the data could erased, though not for another decade hwa melting ... Disassembled, cleaned, oiled, zadolbalsya connect to the ring tape. Was the case - sshi shaft. But later, fuses, what is more complicated than I think. Nedoplavish / smelt - sever camping, and not once, but in the most unexpected moment. Barely able to collect and adjust the position of mechanism, which was very dolt and could not properly secured in the housing. Of course, blurry. Later bought a German ink, which wetted tape, driving it many times (even wrote a program for this). The printer, like, normal work, not Considering some of the non printing vertical and generally better quality, because of worn-out tapes and antiquity of the model. But do not stick the needle, due to strong head. Good comfort was photosensor paper. But when printing had supported alive printed part of his hand, because of absence of the printer. Just then I and wrote the graphics driver and an article on the instability ndartnom driver, due to breakage of the total water between the printer and computer (even if can be printed, although there were glitches). Unfortunately, my Russian printer Elect ronika MS 6313 (if not mistaken) is up tvym load, due to a dead driver and the Village glaciers during the Japanese DAEWOO, in fact, I rescues! But over time, failures, Head longer get off the desired position tion, slow down / stuck on the road and hits the edge of ... Number of successful transition chatey began to fall. Mechanism, of course, zapy poured and covered with a thin layer of wool (mo tnogo fermenting koshkozavra Murzik), but I do not give this much importance. And Also, the top lay a pack of sheets with kryvaya most of the system from further pain Sheha damage. I began to suspect that the principle ter sdyhaet of antiquity, remembering how sdyhal me, but there was no direct analogy, though failure mechanics are similar. I suggested that posohli Conder, and we ought to do, remove fee (it's not so difficult, fortunately) and solder Conder, testing their capacity ... And now, the second consecutive month, gaining the text / letter Aleske (sister in Krasnodar, Russia), I was wondering how I can make it print or file, and will unsubscribe ask anyone ... And then it took update the phone list of relatives. File I corrected - and decided to print ... Printed so ... as in the nightmare do not dream! Line was beaten it into one then the other side, head scary triangle schala like a beast, and vibrated as the machine razbaltyvaya axis of the guide from side to side and "gnawing" obscure fonts type and density, which were recognized bu kvy, distorted horizontal progress ... Well, all ... - I thought. Printets my printer, and write my little sister ... Became kakto lousy ... Many problems, and here also it is now even buy a new (thoughts were yes there is no extra money). Become complacent ce BOJ: that no system - no problem; discharge vat whole - not necessarily, though simpler; You can chop off trance - a good block pit of collect, there is still something on the little things ... And then devoured conscience ... Slavka, of course, on gave as useless, and now it does not matter (Well, dead, thrown, of course - old). But because most disgusting! Is not necessary - to give Therefore you want, and here: no self - no people. Y someone broken gear, and I threw it, and suddenly there are only a touch away, and I it in the trash ... Still sorry, our - action tvym burden lies (the situation with him is already determined thinning), do not mix, but here there is a chance (Albeit small). With a heavy feelings for take out cost and starting Naya desoldering Conder. Almost everything is normal, one replaced - for prevention, knowing that does not it matter. Alone, power - ca my healthy. Included a 60-watt soldering iron and with difficulty vypayal (4 feet, two - hardware). But he is OK, sealed. Examined all fee, re-measure everything that could solder on dozritelnye place. And knowing that, in fact, nothing is clearly not fixed, collected and included chill (and suddenly start working properly - this very rare, but happens). But the printer is not equal Bothal AT ALL! I do not believe it ... Perevsta Fork re fees, checked the hardware connections, ascertained in impulsnika, but the printer has not acted. Even the display was not. As if off. Again, sombre thoughts and temptation: to throw or suffer? The winner is the reason: to throw never within, and maybe even in something - for themselves, for the practice of understanding. Where I climb last? And what, in fact, touched? Capacitors - they are obviously in good order, and ROM (perevotknul in socket). Again the transition put ROMs - no effekta.Slegka ponazhimat fee, who quit suddenly closes contact - show itself - but did not help. In my thoughts clouds ... I have already put the LED in the temple electronics for the repose of the soul printer ... By recent chance, last chance ... Should be some sort of explanation ... What's happening? It is included? Physically Yes, logically - no, I can not manifested itself em. There is no movement, no indication has tested at the beginning, not responding to button. Hanging? Perhaps because food is and all fuses are intact. Pull plate that (the mechanism is disconnected), connect power secondary housing, and watch the voltage on the legs ROM. Strange thing - all levels are static, in essentially zero, as if no rate and no Why is not satisfied. Check the spider (that in which the quartz and the CPU inside). Generator works, but the other legs are static. Chip hanging, doing nothing, really was dead? Not believe that he did something, and served without being influenced, it seems, he has not worked. Maybe there was relief, or emergency interrupt tion / lock. But with the company there is no signal (Tail off), and tested it should nezavisimo.A where reset? All Conder go on diet, the scheme certainly different. Here I remember that one conclusion spider hangs not in a "Pure" logic levels, and in parts of lta (can not remember how many). Go on the signal Lou and I find 5-sided lapy chip several Circuits obveski.Yavno full of trigger, or the comparison circuit, and to her is only one signal - the track, "dive ing "at the very bold Conder, which I zadolbalsya desoldering for testing! Continuity print around Conder govo rhythms that signal is formed beneath it, and is is power line, but really nowhere vyzvanivaetsya ... Can break? Take rezyuk, through his shift obvesku a trigger pita Niemi secondary housing, and a signal to the spider changes Spider comes to life. " Again this is fundamentally fed to con ... der. It turns out that broken relationship between one hundred electrons of dress, plus Conder. I never would had not thought of: the holes are large, and track fat. Seal the two jumpers from the interval O (second at minus for warranty) collecting system. Result: It works, but the glyukavost same, or slightly better (sorting, cleaned up a bit from the flakes of wool). To shorter than, came to what was ... Now, although the mood no good, but Yet it became easier - after all fixed something that he himself had created ... But Conder You can isklyuchit.A may have Speccy interface buggy? But the attempt to print a test (without participation of companies) provides the same failures, well, maybe postabilney it ... Okay! Let! Try to exclude further. I take off the cartridge belt - suddenly stuck. result - a bit better, but the failures of lines clearly visible, and the head slips from the initial position, and the following attempts Pec Tee will have shifted to the line ... Now disable connectors igl.Uzhe not to catch hold tsya - head can only travel freely, Yes, and energy and less interference ... However, the backlash head continues, and with several passes through Dov she moves - which obviously should not be be. While crackling-podstrevaet noticeable but less than in print. Apparently, all the digital properly, but the point actuator (stepper engine), in its management and mechanics, and so stirred up ... Can assume that the head podstrevaet at current course, and the system "believes" that the ne redvinula it to the desired distance, to toruyu head is not really gone. Correspondingly Twain (and stuck it into one or the other side), prevailing, the total stuck of shifting it to the starting position, and builds ki astray. When you print a test Origin of rarely goes for less symmetric bulls in a row. But then, in fact, what reason: Do not pull the engine, its bad commute commute (the key is to act up), or the mechanism itself? From the hand of the head is moving normally, but when the direction of a roll of friction. Although podstrevanie is not at Reverb ce, and during movement, and not on the same metal degree, but where have ... Irregularity of the hand sequence is not felt, or weak. Rubber drive belt with teeth rejected hand and easily noticeable, but strung like would be quite safe. Maybe stretched / expression bot? I barely let the screw fixation Tension Strap - obviously it is not slid, well was covered. I pulled up a bit strap and fixed with screws. Result became negative. Head moves more worse, growls louder, often gets stuck, and the results bag varies greatly at the moment stuck of, and can be seen that the engine is rotated (motion tsya scrolling tape drive, and it is from the same engine), and head stands. The result turned out lsya opposite!. It would seem more grip, and the movement is worse - marasmus of some kind. But a negative result - that same result, I reduced the work natyazhenie.I was almost the same, maybe a little better ... Now is the time of analysis, it was necessary to disclose physics contradictions ... Engine and transmission (control) - corrected hand, and it is - fact! The engine pulls! And scrolled Vaeth just as much as necessary. But the head on a metal axle, leaning to Lesik on the counter, moves stuck. By Since the belt is perfectly fixed at the base tion head (moves its own basis of, and the head on it), then podstrevanii He scrolls from the engine. And the more at this point the clutch - the more scrolling. Well, damn it - The Matrix! But the last fact, if all good think, is as real as and electron pairs in superconductors, and in fact reveals the answer to the question - what malfunction. Define all the mechanics of motion head (Belt - the foundation - the axis - Rack - preload) think twice - as all relationships but? The engine we reject - he performs doing, trying to crank the belt. Wear the latter also eliminated its reliability, we pressed. And therefore the whole thing can be vysheukazanyh five veschah.Remen rigidly ated with the base and pulls her to him without the slightest Sheha backlash - as a whole. But the force at This is changing, not just the stress t.k.remen muyu pulls basis force vector almost displaced. Basis little to the side - on the axis along which swarm moves and on which rests. And do not rotated it because it relies other edge of the rack, on which rolls small kolesiko.Na rack base letter flax lies, and free, it can be the following HCA lift. And given the perpendiculars force vectors, applied to one hundred basis yke under the weight of the entire length of the transition displaced, stand virtually no brakes wasps nova, not counting the weakest of rolling friction have very small wheels. Raising basis and reasons along, I was convinced that this almost as easy or difficult, as in relying on the rack. Rack can be excluded. Belt - as one with the foundation. Remain on the axle and tyag.Natyag located opposite the axis of the engines la, on the other end of the printer, and performs em inversion forces movement to reverse the head. Coaxial arrangement tightness is not change the vector of force to one end of the strap - No-load, which is not fixed basis va.No on another edge of the triangle formed nick (very stupid) forces, since the strap and from the engine, and the tightness, slightly deviates forward - to the axis along which runs the base. Accordingly, a force of attraction axis, which pushes the base, to the line connecting edge gear and stop the engine. Y axes themselves and stop the engine friction is rolling, almost independent of the position of agile (triangle too dumb for the distortion on the friction of rolling). Friction engine rule - he pulls. OS remains to overcome the friction lock and friction base of the axis, and the latter is our problem. The fact is that when the jam to move the head, a belt weakens one edge, and the clutch, with a focus helps crank fence, breaking his friction which is almost constant throughout puti.A so as well as in low tension is a problem, that's not the tightness ... The point misalignment basis of sitting on the axis through the two bearings slip (the triangle of forces actually - Quadrangle, have been replaced obtuse angle - two). Skew is the difference between a de ystviya forces applied on both sides of the OS novaniya along the belt. And while the friction wasps novaniya on axis is proportional to interference. A more skewed, the more friction in the bearings. But why the foundation is not on the same axis, and side of the belt? Because changing the position mapping axis relative to paper (literally in the within 1 mm) can be controlled by stroke, and a technological singularity. And so a small difference from the axis powers did not should cause a noticeable nagruzki.Vyhodit, it's all about misalignment grounds for the motion approximation of the axis, wear of bearings and their zabi employment gryazyu.I add to this effort printing process, which leads to failure, but purely mechanical, but otherwise the whole printer is working properly. I had to do a little clean up system topic by removing projecting from the bearing a mixture of dirt and grease, oil in prokapat several places gears and axles, excluding the the possibility of friction in the force field, and to Of course, plenty of grease axis along which the motion moves the head on the ground. Times impossible for apply, you must serve! Several times from hands moved the crown, she became noticeably easier to move, but to determine on such Effort rate - is doubtful. After all, seemed to me elk - all right, but the mechanism was cha zhelo. So and so worn the printer is not for gryaznyalsya once again, broke clear bag, secured with tape on the leading edge and draped on top, pressing the paper. A after all once before wanted to do so, and keyboard long dust sheet blanking. Statistics problems ... Once I had to put a puck, and it stabilized the position of the rubber drum (before that was an additional gap and a split in the multipass printing). In Next time, I was thinking about how to fix os.I, perhaps it was a time when friction is based on tion on it has increased, and then blabbed own head on the ground and had to wind tape it to secure landing. Finally I figured out a malfunctioning and could print phone numbers. After that, cleaned prospirtovannoy fleece drum to boom hectares less dirty. Even before the repair failures Believing that this is the case, cleaned alcohol including the head and nose prokapal needle oil (Shoots desyatochku - not for nothing was busy). And that's not all ... When, after repairs popechatal, Ninny from stability lines I decided to pour a little kraski.Prokapyvaya tape, 10-15 mm, and promatyvaya until all is not running off, I was horrified at her full of holes state. But scrolling through just 8 in a circle, for uniform distribution of paint, put it mesto.Poka no alternative, but many continuous printing gives good results and on a bad tape. But the problem is that in place its "closure" and it stuck Village Degree of wear. The next time you print (perepechaty Val table of dates of birth), I regret that used pseudographics. Apparently, not enough needles, and each line with pseudographics printer prints in two passes - and it is twice as long. In this case, I had to stand close and keep the paper to the printer not struck through it and over it, pressed to drum. And then I found a simple solution thanks pseudographics ... Each time the second pass, the printer pulling the paper back, and after, with compensation her forward, and it is periodically torn leaf out of the hands and demand change efforts. Remembering the pressure roller (which I tried to lsya a substitute), I realized that the longitudinal to (along the motion), force applied the paper, does not correspond to the transverse nym that touches sheet to the drum, except that On that sheet of the drum goes round in a circle. But I'm not a movie to turn the finger infinitely touching the surface of the bar ban, but that is impossible. And if you press sheet - will rotate with the bar ban, and will have to intercept every just below the skin to slide as the paper does not get! And then came - not since the skin zish, if your fingernail? And it was way out of position! Only a small clamp will Magi to the drum surface of a small but gtya that easily glides bumaga.Srazu thought possible and appropriate emphasis sdelat.Kak anything then - in leaves of different width, and purpose to make difficult. But I waited a couple more problems. Bu Maga was fed not quite exactly one edge slip, distorting the print. Again wear and poor mounting mechanism. Had to disassemble, to intercept the Platen pru zhinu slightly higher and not as it should be, but it improved clamping and in general nothing prevented. And the loosening of the plastic bearing, the anchor of a drum proskal zayuschego edge, put a piece of tape, for reduce the backlash and additional clip. Pomoglo.No to the touch - clamp remained almost the same as was (and unnecessary horizon belorussian bumpiness of the paper is still could affect the tone at pseudographics What the paper). Unexpectedly, began to lag sensor eye nchaniya paper, assuming that it is, and the shift nut mechanism it can not. Sometimes the transition Catal line closer to the penultimate, rather just because it can change prizhima.No offset is programmed in the printer number of rows in a sheet, or by breaking the text on the page chain of blank lines (but part of the Pass can go to the top next page, which is inconvenient). Although able to intercept the print button "Online" and reload the paper to continue tion - the main thing is not too late! The latter was a bummer at the time of printing that Blitz. Towards the end I noticed that the painting schaya tape does not move, and if not for recent Applying "dressing", the text at the end would be bad viden.Prishlos zaplavlyat tattered tape (She probably already decreased by 10 cm). How would pokorrektney do this? Took ku sochek tin from the inside 9V batteries twisted it into a boat, rounded out the con snip a little strain - and got to cages. Holding it with tweezers at one end, the second Roy dropped to the ends of the strip and warmed / at melted soldering iron (pressed tin to convolutional xy). Tape lying on a wooden ruler, and excess heat is not required. First transition tried and melted, a second attempt to Nedo keep ... Had carefully doplavlyat, picking up the tape and looking where nespla wound, and then try again in the right place, such as iron proglazhivaya tin par current tape. Not a quick, but not bad, and even seems to be more reliable than trying to warm up tion across the province at once - at random ... As a result, the entire history of defeated mind! It I'm almost resigned to the loss of the printer with were chosen to throw it away. When I started about problems, and I suppose could not imagine that thing wear, combined with the zagryaznenie.Konechno, with so many problems, it was would be easier to buy a new printer, but how would Anyway, now I know the real reason Ny problems and their solutions / com compensation. This will help me a lot more Napa Chat - far plans have been printing graphics discarded failures and, naturally, the reluctance get a distorted picture). Remembering recent events, "fatal" repair, and today 17.03.2006, KSA-7G. In early April, at 50 years of mom, neo Jew came with Alenka aunt (sister). But only a few days (alas). After such a rare event remained light set set of good memories, as well as after my visit to him in Nalchik (autumn beg logo of the year), which I did not even started to describe vat. In short, Alenka really wanted me to sent 2 cassettes (audio) with these two events, and "meowed" at last, that I played for her BATTY (she was very Mon ravilos, although in a few hours znakomst Islands with a game it could not fine her Obu ourselves, we all had such ...). Joke, depth post, but I did not want her to fail and hearth small - as it more interesting to imagine. In the end, decided to use MAGIC and napecha assume multiple screens - in the game. A few - turned into 35 pieces and carried How many hours late at night! And later on the reverse side of sheets printed the whole story BATTY, with commentaries paintings kam by filling out the rest of the technical information tion and description of the processes well, and personal ... And where, one wonders, will find the normal description description of a game of this level in our electron globalized world? Here you have an example to acquaint mit close / loved one with etim.Ved you too can a similar situation. But talking about the other - on the press. I decided to write a new driver for at ntera A4. In short, print pictures with emulation of all grades, but across the sheet, other positions is not enough (the last 16 something check available). And, inspired by the normal the present work the printer has decided to first use call of duty 4-fold density (previously feared for the load, and so the old technology) printing graphics. As you know, he losses (From the nearest points on the printed only one). But we are losing are not needed, I decided to print on two "components" - odd and even, in sum - without a loss. Remembered the assembler and overwrite the old driver for the new method. As always, catch a few mistakes, about gnav work without the gate and wait - do not ne Catal. And then withdrew all grades in order Ke increasing B / W luminance and unsealed part of the screen. Like anything, but the printer ne Catal weird: a few more times, but rmalno (in this case). But not in every row once again! Double rechecked the code and the traces of the monitor, I realized that the case in the printer. After BASIC, in bytes, protease Steele's work. It turns out "to his mustache It refers to "the printer can print a string and twice, depending on how much the printed graph Key in it. I. .. It seems - no loss at all! I rewrote the driver: gives one - half nuyu line instead of two partial. And Save Neil old driver for print losses. Then copied the image to print gradations to improve the form (and perhaps not ideal but, but quite acceptable for matrices). As a result, convinced that the old printer Print em no losses! And the "user" can not hesitate to give him all the graphics. He it myself "comprehend" and print on your discretion, one or two times, without unnecessary movements on the emptiness of the beginning and end line! And wisely distributing load ku on the head - press evenly over two times, and not that one - almost everything, and the second - almost anything! This is wonderful! AND That's it - that old printer! Yes it is - about one hundred gift for your time! I do not know as our printers print in those years, I do not tried on them, such regimes, but for the old of DAEWOO, not fitted with a buzzer (Nedo assembly / simplification, perhaps), with bulky engines past and not the "needle" head - it's great! Look at this wreck, with a stamp - sorry, I will use - will not give up! However, having got a lousy ribbon problem.Pri us to a lot of text printing session friction, I broke it on the page, 50 lines adding the bottom number. The printing process interrupt shaft through the "ONLINE", sorting out the tape and Continuing (the printer was waiting with no problems and glitches). But it was later, and text occupy maet little space. A print continuously all picture, in a very difficult regime and pro blemmnoy tape, I'm afraid. Driver of the boundary fictions I have written a pause after printing each line. Of course, it is inconvenient to press each button again to continue, but it is possible to put on it something nibud.Takaya avtopauza lets not worry about continuity, the printer will stop (without clicking), and will be correct tape, and continue or to cancel the further printing by three CCW SIC, and buffer the printer will not be beaten residues com images - prints the next. Scanning are all ryady.Pauza (green border), "Snee maetsya "by pressing" 8 ", and the abolition of" 0,9, and then 8 "- together). However, the latter does not pause needed ... In the driver (BREAK, ... USR) has protsedurka, drawing a test strip. Uba vte color to zero to ensure that the incommensurate vershenstve DAC their Speccy (B & W castle tions should consistently increase brightness bone - from top to bottom). Ideal would be only in these units, like me, or those who post ralis ... The old tape was dissolved in edge, and because its thread is very firmly on stretching, then wound onto the shaft scrolling Key in the cartridge. Had periodically cut pieces of yarn at the edge, and sometimes the entire cartridge open - rasputyvat.Pra VDA, at some point podplavil edge tape on the soldering iron, and it is long enough locally, only occasionally pushing the jammed flax that. Corrupted 6 sheets, where the printer failed, and stuck in the tape (surely only a poet mu). Among other things, the tape almost all the paint handed, and 35-I picture was pale by CPA vneny with blackened pervoy.Potom Draw shaft of a pencil, some "fallout" stamp TUE. Normal paint enough sheets for 20 medium-gray images A4 (German, shtem pelnoy, prokapal whole tape - continuously even overdone - podpachkivalas boom ha). Plot connection end of the tape from the beginning Scrap scroll, to avoid wear and tear / terminates Islands (although for some time, it lacks). Tape (store), I could not find it, but do May it be later, but for now pomuchayus. During the press have been observed glitches in the late chain pechatuemoy line - a few Latin characters on multiple lines on images, but one - the first picture. And through no how many pieces Speccy hung without resetting sya.Prishlos it to climb, preloading process cop (this computer The I hardly use it, and He, on the floor, zapylyaetsya, and old - to rtit discs, only use for printing and TAPE). After this problem nebylo. For ne chati text sometimes the printer once again about walks the line, something dopechatyvaya, shifting sheet, but not pseudographics. I did not understand - Why and what he does, but glitches Print for this. In general, seem to all problems due to tape wear mechanics and glitches in the old Speccy. The latter can be explain almost everything, except for getting stuck in tape and an uneven flow sheet (one edge faster than the other, and print, turn chivayas, distorted), if you do not keep up switch feed. Over time, it would be necessary read ROM printer until you passed out, until all the works, and get this damn tape! Supplement for the third time 1.6.2006 KSA-7G.
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