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Tech Tips
Tech Tips for June 2004
Answer: Please tell me what is BOLD COVERAGE??? Answer: I think he means dark coverage, and for that I would start at the slit glass or elsewhere in the optics. I had one that got a ball of lint (Don't ask ME how) above the slit, and the same thing followed. Question: With bold coverage, I mean the bold coverage of the text that has been copied. No background or any other dirty optics faults; just you can read the letters on copy touching with your fingers, like copies for the blind. On normal machines it could happen with primary overcharge and over toner consumption. Ordinarily you can adjust the primary charge voltage or the high of the primary charge corona wire, but here the NP-6016, PCR is used and the HV circuit locates on the composite board. I started with fuser assembly because the film has made a lot of copies but nothing changes. This is why I ask for the assistance. Thanks in advance Answer: Check out your blanking and the DV blade gap. If the charge erase is not working properly, it will cause a buildup of charge in your drum, and this can be the result. More likely the doc blade gap. Answer: I would go with DR blade gap also, I used to see it on old mono-component machines when we increased the gap for better solids, etc. Also, maybe try changing the toner completely, it may have bad generic or oem. Never underestimate the power of a customer to screw you up.
Answer: If they need real dependability and quality they got the wrong
machine, they need to buy new.
Subject: Sharp AR-650 Paper stops at PS roller Answer: Did you check your ROM version? Is it updated? Question: ROMs are most recent. It was working fine for 55k copies and then this. Answer: If the paper drawers have the wrong size loaded it will cause this to happen as well. I know it sounds stupid but I have seen it happen. Question: Thank you. I checked that before I went to the logic board. I have also done a point to point check from finisher pwb to logic pwb for opens or shorts. It is all good. Thanks for responding. Answer: Print out 08 setting list. Look at all jams/codes before the problem occurred. Look for multiple codes. This will lead you in the right direction. Good Luck!
Subject: Konica 7050 Answer: Can you fill us in a little more? Is the machine totally dead? Does everything appear to be warming up or never does, more info? Question: The copier power is on. The machine states that it is warming up but never warms up because the fuser lamps never turn on. The continuity through the fusing unit appears to be good. Answer: There is a switch in front of the fuser under a cover that the pressure release lever actuates. The fuser will not turn on if this switch is not being actuated. Answer: Move the green handle that locks the fuser in place (towards locked position). There is an interlock MS under there, see if the lamps will light then.
Subject: Sharp SF 7900 Answer: Do you mean fuser rollers or fuser guide?
Answer: It should be a worn LFR or a broken UFR bushing. Is the paper
going into the fuser straight? If not could be a dirty
Transport bed belt. Good Luck Answer: You said "after the fuser", does the machine have a sorter? Also, I have seen the exit rollers (the last rollers to touch paper as it exits the machine) bind up, lube the bushings on each end of this exit roller shaft. Feed paper through fuser by hand turning knob to see if it does it. Does it do it with paper feeding both directions? As previous post stated, it is usually the LFR and bearings/bushings that cause creasing/wrinkling of paper Answer: These fusers are notorious for binding. They have a "split frame" design that sucks. I would go with Lower Roller myself, but I don't know how you determined that the rollers were. "O.K." sometimes you really can't see the wear and have to assume they're bad. When was the last time they were replaced? I've never seen the transport belts go bad on that series machine, so I'd stay with fuser. Answer: I like to replace the two rollers together. Like you said, sometimes you can’t tell if upper roller is warped or off a little. This is the type of fuser unit that after so many copies, you will need to overhaul the unit, including the rollers, bearings, bushings, gears and fingers and it should be good for another 200k copies.
Subject: Ricoh 4215 developer dumping Answer: Check for broken gears on rear of developer unit or a bad magshell. Have never had much problems with these units dumping toner. They do run dusty though. Plus they are getting up there in years. Answer: All I can say is to check toner hopper for proper installation. It’s most likely a bad metering blade or mag roller. Answer: Have found that the cause for this is the Mylar located under the Mag Roller assembly and tack stripped there. The problem occurs when techs inadvertently turn the Mag Roller backwards when PM'ing machine and developer gets underneath the rear side of the mylar (the edge that is inside the unit). This developer buildup causes the mylar to be pushed up into the Mag Roller and narrowing the gap for returning developer to get back into the unit and dumping out the front instead. I have removed this mylar (and the rubber strip on top of it) with seemingly no effect on copy quality nor anything else and just leave them off from that point on. Answer: Did you remove the cleaning blade and vacuum the recycling assembly? If there is any toner in the unit when you fit new developer, it will start "dumping" developer & toner very quickly. Answer: Drum ground is so important in these machines.
Subject: Canon PC-920 won't feed Answer: Check the feed tires. One can pop out of holder and stops the shaft from rotating. Answer: I think that maybe the feed roller shaft is bowed on the end, causing the shaft to bind. You should also check the drive unit that turns the gear on the end of the feed roller shaft; there are probably a couple of broken teeth. Question: Thanks. It was a bowed feed roll shaft. Subject: Xerox XD-120df Question: This machine has a side registration problem, both thru the Doc. Feeder and on the glass. If I move the original over a quarter of an inch, line is gone. What code should I use to center the scanner and can this one be done that way? I've done a couple of Kyocera's before, but not a Sharp or Xerox. (SAME) Answer: I had this problem before and it turned out to be the drum unit. Answer: That would sound strange for it to be the drum, but I will check it out. They did replace the drum with a rebuilt unit a couple of weeks ago. Who knows? Thanks for the Heads-Up on that. Answer: Here's something else you might want to check. Is the paper positioned properly in the cassette? I've had a lot of these "plastic" digital copiers where the paper guides get out of whack in the drawers. I've even had to resort to screwing them in position on some machines. Just an idea.
Subject: Sharp SD-3062... Answer: In a no power situation, first thing to do is check the power fuse at the AC P/S! Answer: On/Off switch is a high mortality part. Answer: Check the ac pwb. They can go out and come back on until they just stay off. Answer: I have seen this also. Be sure to check solder on back of AC supply, I also had an idea that the SD-3062 would make an ideal anchor for a large boat! Also I've seen a lot of unusual problems caused by arcing coronas and associated hv connections, cables and supply's. Good luck! Question: Thanks for all the help guys.... It was the 20 Amp Fuse on the A/C power supply. Replaced it today and machine fired right up!
Subject: Sharp sf 2035 Answer: Check that cassette front-rear reg is the same as the bypass and that the cassettes are set to the correct paper size (bypass auto senses). Can’t imagine that main pwb would cure blurring. Also, scanner/lens simms may need resetting (use the book). Does the blurring alter if you reduce/enlarge the image? That will point you to drum or optics. I think you need a bit more investigation yet. Post again with your findings. Good luck. Answer: Does it sound like the motor is slowing down? If so, clean ALL of the drives. Also clean the lens rail and scanner rails. I have seen the bushings on the shaft that is driven by the scanner motor get dirty which can cause a blurring image.
Tech Tips for April 2004
Subject: Savin 9013, E-55 code
Answer:
All fuser codes on the Ricoh's must be reset from service mode.
Did you reset? Question: I did a reset by turning dipswitch 101-2 on and off, then turned machine off and on. Still came up the same. Did I do right? Answer: Try sp 97. Answer: I think its 101 - 1. Flicking the switch back and forth usually cures the problem. Good luck Answer: IT'DPS 101-1 ON AND OFF. Question: Thanks for the replies guys. I’ll go back and try this out tomorrow.
Subject: Lanier 5020mfd/Aficio200 Question: Copies faded and light shaded bands appear about an inch apart every time. I replaced the drum and the d/t unit, I have the exact same copies. I have also checked the laser. Answer: Check your drum ground. It may need to be cleaned and repacked with conductive grease. The development clutch is also a possibility. Good luck. Question: I have cleaned the drum shafts and put conductive grease on them. Where is the drum ground exactly and how do you re-pack it? That sounds like a wheel bearing. I will check the DV clutch. I am relatively new on these units, so bear with me. Thank you. Answer: I've emailed you a bulletin (TSB #022) on the problem you are describing. There is ALOT of good info in there (Including drum ground). You really want to put the grease only where the bearing is. "Repack" is probably not the right word since they don't really pack it to begin with. Just make sure it's clean before greasing. In regards to the laser unit, I would give it another once over, and make sure all of the glass and mirrors are clean, including the polygon. Answer: You might also look at the cooling fan for the laser unit. It is located towards the rear of the laser unit, left side. Also check to see if the polygon motor is turning freely. If not, unclip the assembly and clean and lube shaft with oil.
Subject: Toshiba eStudio 25s Question: There is a c26 on a Toshiba estudio 25s. What does this mean? Answer: Straight from manual. Exposure lamp disconnected or peak detection failure. Haven't had this problem on this MC so don't want to mislead you. Try checking condition of white strip at lead edge of glass. Be sure it's in good condition and glass and optics are clean. Answer: It will do this if you switch on when the glass is out of the m/c so clean the white strip as Chi said. Question: The optics are perfectly clean, even the white strip. Unfortunately, this did not work. Would it be possible to raise the exposure lamp voltage? Would it help? If so, how would this be done? Answer: Check 4-amp fuse on power supply.
Subject: Aficio 551 - White line Answer: Check underneath the scale plate and make sure that there is no paper dust under it. Paper dust can cause light streaks. Question: Thanks Richard, but it has that white line when used as a printer also. I think that we can exclude the scanner from the problem Answer: Inspect the developer upper seal, it can roll back under the cover and cause a dip in the brush.
Subject: Sharp 2022 duplex problem Answer: Check that you didn't disturb the switch on the underneath of the ADU. I had some funny readings off that before. Good Luck Answer: Hey Dan, I am not quite sure and I will check my book, when you add a duplexer you have to add it and let it know, just like if you were to add a ADF or sorter. Did you do these things? If yes then I will check out my book to see if it says anything. Answer: By the paper feed roller are some tension springs. Try taking some tension off so they don't hold the paper from feeding. Answer: The paper is not registering at the sensor in the base of the duplex. Could be stuck down, broken or dislodged. In extreme cases, I
Subject: Sharp SF-2027 Question: I need to replace developer and drum on Sharp SF-2027. What are the codes to calibrate this to? I am new to copier business and still waiting for my manuals. Thank you!
Answer:
[8] Simulation and diagnostics
(1) Introduction
(2) Purpose …Simulation is used to help repair and adjust
the machine. When the PAUSE key is pressed in the course
of a simulation being executed, the simulation is
interrupted with the copy number window turned off and the
copier becomes ready to accept entry of a simulation
number. (3) Simulation execution procedure.
25 developer
10 ** Toner motor aging
Normal simulation
Subject: Toshiba 5560 RADF Answer: We refurbish these machines all the time and have found many problems with the ADF. Replacing the main board in the ADF has solved all issues. Hytec probably has the board repaired or can repair it. Hope this helps. Answer: Try waxing the glass. I know it sounds dumb but I have seen ADF do weird things when the glass is a little tacky. Answer: One test you can try is running duplex 2-2 say loading ten originals. During the operation the exit should fully shoot out the original. If it does not exit completely, your sensors are probably out of adjustment. With the copier off, remove the top back ADF cover to access the ADF logic board. Flip dip switch "4" to the "ON" position. Turn on the copier and the L.E.D.s will flash. When the L.E.D.s go off the sensor, adjustment is complete. Turn off the copier and flip dip switch back off, turn on copier. This has fixed a lot of strange problems for me. Let us know what you find. Good luck buddy. Answer: Allow me to elaborate on what our experiences have been on this problem. We replaced EVERY part in these ADF's, including the main board and still had that same problem. We spent a HELL of a lot of money on the parts too. That brake clutch thing was like $100, or more. What we eventually found was that one of my techs had replaced the SEP belts but had ALSO adjusted the nip (gap) between the SEP belts and the feed rollers. This adjustment (with the Allen screws on the top of the bracket) should NEVER be adjusted. Making this adjustment, along with replacing the rubber, made the drag on the incoming originals TOO HIGH and caused the originals to be out of sync. This caused the exiting originals to shoot out way too fast, and of course, mis-order them in the exit area. See if you can find the specs on setting that SEP bracket back and see if that makes a difference. If it's been adjusted (and you can tell by seeing if the locktite has been broken), you've got nothing to lose. Move it around and see if it stops your problem.
Subject: Panasonic DP150 Answer: To reset the drum count enter service mode. <counters> and change counter 2 to a 0. Answer: ffpuq90s00 is bypass assembly. It’s cheap.
Subject: Copystar 2130 streaks Answer: You have lost drum ground. Take a rag and shove it in the drum drive shaft hole in the rear of the machine. Clean it out and re-lube with conductive grease. Answer: Make sure you are getting power to the cleaning and blank lamps. It is also easy to plug in the cleaning lamp connector incorrectly. Visually check the connection. Tech Tips for February 2004 Subject: Toshiba 5560 RADF Question: I am having a problem with a Toshiba 5560 RADF that is driving me insane. When you run a stack of originals through it, sometimes it will run flawlessly, and sometimes it will spit out a page and about half an inch of the next page in the sequence. It hardly ever causes a real jamming problem, but the crazy thing will shoot out that next page past the stopper wires on the RADF feed tray....very annoying. Could it be the brake assembly on the turn-around section or am I barking up the wrong tree? I know this much for sure, if the tires are crappy, you will get weird jamming all over the place. I have just changed tires on this unit less than 20K ago. All help and advice greatly appreciated. Answer: I have a few of these machines out with a similar problem , bi-monthly I have to clean every feed and exit wheel and it will run great for about 2 months and it starts all over again. I find the wheels just get all crapped up with paper dust and toner/ink. I have yet to find a permanent fix for that feeder or any other. some are better than others I guess. Answer: You hit it right on the money. Change the brake and also the clutch in the exit section. There are also one-ways you need to clean. Try cleaning the one-ways first, but I have had this problem before and it was the brake and clutch. Good luck. Subject: Ricoh 1035 Question: I’ve been experiencing light, spotted background on several of these machines. Seems like sometimes the drum clears it up, sometimes it’s the charge roller or the charge roller cleaning roller. Also the waste toner is getting full really fast. Any ideas would be helpful. Answer: Pretty common for these. The developer is rated 300-360k. I've been finding some accounts go 80-100k. The dev gets the dust and paper dust in it and spits it out on the paper. The other problem might be that the toner return area was not covered during developer initialization. Another thing might be that the paper dust filtering screen in the developer assembly opening is plugged and needs to get cleaned Answer: Check the mag roller real good. These machines seem to develop a film on the roller and do not hold the developer well. You may even have to use a Scotchbrite pad to remove the film. Answer: The devo doctor gap was changed on these in the later production to combat this problem. Also, we set ours at .037. Subject: Mita DC 2355 Question: Does anybody have a service manual x DC 2355? I need information about error code C31 - Mita DC- 2355. When the copier is turned on, in several times the copier gave me c31 code. Thank you. Answer: Scanner problem. Answer: Clean and lube scanner rails, Remove and clean home position sensor. Check to see that piece that actuates home position sensor is placed properly. Check scanner motor. Subject: Toshiba 2550 – Lanier 6725 Question: Have one where the copies are slightly out of focus and exposure is dark (no back grounding), But any thin lines or very fine print won't show up. I have tried new drum, dev and coronas. The customer says that it makes a noise but it won't do it when I'm there. The copy quality seems to be getting worse Answer: I am assuming you have done this, but you did pull off the black optics cover right? There should be some black plastic light shields attached to the lens housing. I've had these come off and makes for some weird imaging. By what you have said, I would guess it's something in the optics. Have you removed the 5/6 mirrors and cleaned the slit glass? Answer: check lens and mirror positions. Make sure they match numbers inside of the front door. adj are 08or05 50 51 52 Answer: I've had a number of "B" Box Toshibas do this to me. The lens was slightly out of focus. I also had one that had a slipping belt on the scanner. That made a wonderful noise. Check on that too. Subject: Panasonic DP-2500
Question:
I have a code e04-01. I think it is a low fuser temp code
but not sure. can someone give me the service code procedure
and if possible how to reset the code or if there something
in the fuser that needs to be replaced, can you let me know?
Answer: Go to F9 Scroll to LBP fuser reset. Be careful to make sure no paper is caught on hot roller shielding thermistor. Answer: Press Function / original size ledger/ no. 3 with power on, this gives F1, press 9. Function / cancel to clear F codes. Answer: If the counter copier is over 120k than check the rear bearing of the heat roller!!! hope the f9 progress did help you! Question: all your responses helped. I have a warped fuser from overheating. Thanks again.
Tech Tips for January 2004 Subject: Canon 2120 Question: I have been working on a canon 2120. It is dark on top of page and light on bottom. I have tried new drum, developer, corona assy, high voltage, adj to exposure, replace lamp, adj shutters. Only thing I have left is the dc controller. Am I missing something? Generally I have no trouble with these machines but this one is whipping me. Any help would be appreciated. Thanks. Todd. Answer: Todd, the bottom mirror has a slit glass that pulls out. The mirror right above it is hard to clean, if you did not use a probe of some type to push the cleaning cloth up to the ends of the mirror, it could be that easy, or that hard, depending.
Question: I pulled the assembly out so I could clean that mirror and
it still did not help. Is there anything else that I missed?
Answer: Did you try the transfer corona assy? The whole corona? That’s what it sounds like to me. Good luck. Answer: Shut off the machine when the copy is 1/3 of the way under the drum. Remove the drum and look at the image on the drum. Is light/dark problem present on the image on the drum? If the image on the drum is good, it's transfer, if it's not, then your problem is before transfer. Some suggestions; drum, primary, developer, lens light curtain. Did you vacuum out the developer and add fresh toner? The toner gets damp in low volume machines and causes light copies and light streaks. Answer: Have you looked at the springs under the paper transfer assembly? I had a customer who had a jam and released the corona from the drum contact and it never worked right. Then it was the fact that one of the springs had fallen off its white support arm and the corona was not even distance from the drum. Answer: Sometimes the tension springs that hold the developer to the drum get weak. You can check this by holding pressure to the drum on the front of the developer unit. Good luck.
Subject: Mita 1856/2355 Question: I am getting blank copies. I have installed new Katun Toner and Developer, new toner motor, new auger spring, new sensor, and platinum charge wire. If we advance the DV unit, we get a faint image for a few copies and then blanks. We have 4 machines doing the same thing. We believe in the KISS approach, but this has us scratching our heads. We even had HYTECH check out all the charge boards. Any help would be appreciated. Thanks! Dennis at SOS. Answer: Is the developer unit turning? I'm not sure what you are saying. Where are you losing the image? Is it on the drum? Question: Thanks for the reply. There is no image on the drum. Machines come up to ready, all gears seem to be turning, initial problem leading up to this, "add toner" prompt, motor never shut off and auger spring bent like a pretzel! Completely rebuilt a DV unit with new supplies and still no change. Is there a Mita magic word? Please let us know! Lamps, scanner all seem to be doing their thing. Thank you again! Dennis at SOS. Answer: To test the toner-add: Run “toner add” simulation... U61 I think. Number should be around 220 or so. If it is higher then it is under toned. Keep running and the number should lower if the toner add is working properly. It sounds like the mag-roll or the drum isn't turning. Regards...Venom Answer: I agree with venom, the DV or the drum is not turning.
Subject: Canon GP 200 Help Please!!! Question: The doc feeder works fine when copying but when they use the fax feature it jams at the belt section. I have cleaned all rollers and belts but no help. Thanks in advance...Geo Answer: Is the developer unit turning? I'm not sure what you are saying. Where are you losing the image? Is it on the drum? Answer: This sounds like a pickup problem. Pickup for faxing and copying are different on that feeder. Faxing should use the lower two pickup tires and feed from the bottom of the stack. Try putting pressure on the stack by pushing lightly down into the tires to check. Answer: Copies are bottom fed, faxes are top fed. A couple of things you should check. Just to the left of the feed belts is a white plastic arm. You can try adjusting the sep. pressure by raising or lowering the screw and lock nut on that arm. In the left rear of the machine near the hinge there is a metal arm on that same shaft that sometimes comes loose. If all else fails, you can set the copier to use bottom feed for faxes. Set Options/Fax_Doc_Feed to 1. Question: Thank you so much but as I stated, I’m not all that familiar with this copier. How do I go about changing the settings? Is it like the sharp copiers where you need to go into a service mode? Thanks again for the help...Geo Answer: Press service switch through small hole in inner front cover (upper left) with a paper clip. “$” will be displayed in upper left of the LCD panel. Press * twice (KEYPAD *, not additional functions). Choose 5 - options. Scroll to second page. Highlight FAX_DOC_FEED, enter 1 press OK. Press reset twice to exit. Good luck. Question: Joe, everything worked great. Thank you so much for the help...Very, Very much appreciated...Geo Answer: You're welcome, Sir. Have a great one.
Tech Tips for December 2003
Subject: Canon PC1 Question: This unit was given to us by a customer who said that it just stopped making copies. She apparently replaced the cartridge herself and found that it had n fect. So she gave it to us with the new cartridge, "for parts". I wasn't going to bother with it but I have a good friend in need of a machine to make occasional copies and thought this would be perfect for him. So I decided to put it on the bench and check it out. It seems that after a 1 minute warm-up you need to run between 20 and 25 pages through it before copies begin coming out. After these initial pages run through, the first ïègB copy will start out as a partial page and after about two or three more, a full page will appear. After this period, the thing seems to make consistently good copies. I have experimented with leaving the machine on for a few hours and have found that when I do this I can cut this initial run through down to 5 or 6 pages before copies appear. I have yanked power on the machine midway through a copy and found no toner on the drum. Initially I suspected a flaky clutch might be the problem, but this warm-up thing doesn’t seem to suggest that. Does anyone have any experience with these who might be able to shed further light on this? Thanks, Lenny. Answer: I would suspect the transfer corona shorting out. The charge corona is affected by transfer unit shorting. I would replace the transfer corona unit. It is common on Canon pc's for these to fail. Frank. Answer: The answer you got about the Xfer corona is valid, however, I think the part is discontinued. If you can't find another, clean it up & dope it up. It may work. The Early PC units also have a lot of contact problems. Remove the Xfer and clean all the contacts with a pencil eraser and also stretch the springs. Finally the power supply also can have a bad ground, so tighten all the star washers. If these fixes don't work, trash it. You can replace it for $100 with a rebuilt. Remember your time is valuable. Bob
Subject: Ricoh Aficio 550 Total Counter Reset Answer: The only way to reset the total electrical counter is to replace the nvram. Normy. Answer: I have set the electrical counter back to zero by removing the V-ram chip and installing it back into the socket but moving the chip over by 1 pin to the right. Turn machine on and then do a memory clear. Put the chip in the right way and then reprogram LCD screen adjustment. This will set counter to 0. I found this method by mistake when we installed ram chip in wrong. Jeff Answer: Jeff great tip, thanks. Normy. Subject: Konica 7040 HELP!!!!!!!!!!! Question: Does anyone know a simulation mode or diagnosis mode to run on Drum & Developer replacement for KONICA 7040? Any help will be appreciated. Thanks. Armando Answer: To reset drum count hold down 4 and 7 while turning on. press 9-1-P-0-1-P print. Turn off/on. Hold down 3 and 6 while turning on. Select 1: high voltage adj. press back until l-detection is displayed at the top. Press start and wait until OK appears in result box. Turn off then hold 3 and 6 while turning on. Press 6: image quality adj. select 1: PWM gamma correction (patch) touch 400dpi then start. Wait for OK. Touch next PWM gamma correction-SGU. Touch 400dpi and no50 then copy. Select 11x17 paper start. Hold P and C down to return to adj screen. Touch 400dpi and no51 then copy. 11x17 start. Hold P and C down. Touch next gamma correction and place the first test pattern on glass with lighter bars towards scale plate. Select 400dpi no50 start. Place second test pattern on glass. Select 400dpi no51 start. This should indicate 'completed' at top of screen. Touch next (gamma curve) start. Wait for completed. Turn off/on.
Subject: Sharp AR-235
Answer: Machines do not require calibrations with code. Pour and play
like someone here said...I like that call Answer: This machine does require 25-02 to be run. You have to press ‘OK’, NOT ‘Start’ to begin process. Have fun. Dave Tech Tips for November 2003 Subject: Toshiba E-STUDIO16 Question:
Does anyone know
of any issues with this photocopier/printer with Windows98?
I can't get it to print. All the drivers are up to date and
it is running from Windows 98 desktop to copier via a
parallel port, and GDI driver as required. When printing
the document sits in queue, with the error message
"initializing". I tried the same cable, same desktop but
with a Lexmark printer and I was able to print, which rules
out the controller board since the second printer worked. I
called Toshiba for help and they recommended cleaning out
every reference in the registry and re-installing. I did
this and still have the same problem, does anyone have any
suggestions?
Sounds similar to
a problem I had this week installing a DP80F as a printer.
In the end what I did was remove the drivers from the
computer, switch off the DP80 and do an install of the
program only without the computer seeing the printer. I
then switched off the computer, switched on the printer,
then booted the computer, and they recognized each other and
now talk and print. I'm not sure, but if you've got the Print Controller loaded in the machine, this would take precedence over the parallel cable's own print capabilities. You are able to print to these machines right out of the box without installing the controller. Try removing the print controller and see what happens, you may have a bad one. Subject: Konica 1290RE Question: We need information on clearing the pm service light. Answer: Go into 47 mode and type in 90 then start print. Don't forget to do 47, 51 if you changed the developer along with pm. Subject: Minolta EP 2152 Question: I am looking for parts/service manual for this copier and/or the part number and a supply source for the plastic gear cover for the toner supply. The plastic pin is broken which holds the small gear that drives the solenoid controlled mechanism. The Solenoid controlled mechanism rotates the toner cartridge to supply toner to the developing unit. Thank-you in advance for your help! Answer: That part is not available. It is part of the image unit and is only available as part of IU. Find and old IU and use it’s parts. Answer: Get creative, drill a hole at the place where the plastic pin was and insert a small pin (local hardware) and put a c clip at end if you need too. I have done it and one thing for sure it will never break again. Subject: Riso Tr1510 Question: I have a Riso that keeps calling for ink and the ink cartridge is full. I have also tried replacing the ink cartridge. It looked like the screen on the elbow connector was getting clogged up and I cleaned it. The machine ran fine for a few days then had the same problem. Answer: Is the ink OEM? It could be bad batch! Answer:
When it calls for
ink is there ink, on the drum screen? If not, check the one
way gear on the squeegee roller in the drum body. I have
had them go bad and not spin the squeegee roller.
Tech Tips for October 2003 Subject: Toshiba 1710 Question: I am having a problem with registration; the copier works okay when making single copies, but when making multiple copies the machine offsets 1/3 to 1/2 of a page. Sometimes it will make three or four copies correctly before it starts offsetting. Answer: I would remove the registration clutch and clean it and the registration roller. If that doesn’t work you might have to replace the clutch. Hope this helps, Tommy. Answer: This is a classic problem with this machine and try changing the rego clutches Subject: Minolta 1031 Question:
This machine
is giving me white streaks. I cleaned the main transfer and
the corona, but I am still having the same problem. Any
ideas? Did you check the Developer housing? The metering blade gets junk underneath it and won't allow developer to adhere to the roll at that point. Pains in the ‘keester’ but a lot of Minolta’s do this. Answer: Try checking the mylar that covers the mag roller. I had some that had a pin prick hole in them and that let the developer come through just enough to cause a white streak. Subject: Toshiba 2060, 2860 Lanier 7320, 7328 Question: The document feed will be feeding fine and then make an awful noise and jam. Any input would help? Answer: Check if ADF belt (wide white one) needs to be replaced. Also the glass may need lubricant. If not, remove feeding section of ADF. Check for staples, paper and wear of gear teeth. Be sure rollers turn smoothly. Inspect feed rollers and sep pad. I had one do something similar and the only thing I found was a staple that fell out when I was working on it. Whether it was meshed in gear or feed section drive wasn't butted and locked down with screws, I don't know. After I reassembled the machine, I had no more problems and it’s going on three months on mc doing 15K/mo. Answer: Try checking the roller with the gear attached to it on the belt (lower left). The shaft sometimes breaks free from the roller. Answer: I've heard that noise and it is usually from the pickup roller pressure pad (the one on the upper frame, above the pickup roller). It will stay in the down position while the machine tries to feed and holds back the paper. Usually, just taking apart and cleaning the clutch that lifts/lowers the pad fixes it for me. Pain to get to though... Good luck Tim. Subject: Toshiba 6550 Question: White banding on Katun test chart(rear side of chart) from operator side to non-operator side 3/4 down page from lead edge, on front side of Katun test chart in same area, 8 and 6pt lettering has areas deleted on it. I have tried drum, developer, coronas, exposure adjustments, optics, when you go to a darker setting the white banded area fills in with a dark banded area, deleted areas in letters fill in, any help would be appreciated. Answer:
At the front of the machine just behind
the cleaning unit there is a little motor with a belt on it,
change the motor as it wears out and shorts causing your
problem. Tech Tips for September 2003 Sharp 2120 drum sensitivity reset Q: Hi all, I think it’s crop 24-7 but don’t remember if that’s it or not. I will be doing a full pm on one Thursday and need to get info ASAP, I know the 42-1 and 20-01 and 25-2 but can’t remember the drum. Thanks in advanceA: I'm pretty sure there is no drum reset on the 2120. Just do the 25-02, 20-01 and 42-01. A: It is code 24, sub-code 7 and the machine uses drum voltage correction to maintain copy quality.Ricoh FT-5053 Q. I have a machine that gets an E-5 code about once a month. I clear the code and it seems to work fine, but then about a month or so later it pops up again. I don't think ambient air temp is the problem since it's been in the mid 80s here for the last month. Plus, I had this machine in the shop over the winter and I fired it up several times when the temperature in my shop was about 60 and it warmed up fine every time. What should I do? A: E-5 isn't just fuser related; it also refers to the paper trays & duplex unit (on a 5535). You need to view the service code history in SP7 - 402 & scroll through with the + / - keys. When you have the actual code i.e.: 542, 505, etc you will have more ideas. If your customer clears a fuser jam and fails to reset the fuser unit on the first attempt. It’s game over until you get there to reset the code. You might want to inquire about jamming problems. Q. I should have also mentioned that the code that is recurring is E-548, which I believe means the fuser is not warmed up. A. I have always replaced both thermistors when I get fuser codes and this usually fixes the problem. Sometimes it can be noise on ac line too. Toshiba DP 6570- Toner Dump Q: This copier is making very dirty copies, including
black line stripes from right to left and they are not from
the fuser. Also, there is a lot of toner dump from 2
developer rollers. I vacuumed DV unit and this did not help
and l tried a DV unit from good working machine but new DV
unit was getting bad as old one. I tried new toner sensor,
recalibrated DV unit and adjusted exposure light and cleaned
the optics. Since I changed all values from 05-200 to 05-212
it started making good copies. NO. New m/c value 201 110
from 128; 203 65 from 104; 205-0 65 from 104 A. Are you sure the correct toner was installed? Q. Yes, I installed the OEM toner. A: Try checking the transfer belt cleaner assembly. Also, how many copies ago did you complete the last maintenance, and did you replace the transfer belt and cleaner blade? A. Sounds like your transfer belt needs to be changed. Xerox-5018 Q. I have a machine with no power. I have checked the voltage at main switch and also at the ac driver board and they are both okay. Where is the low voltage power supply locate? I think it might be the problem as there are no voltages present at main board. Any other possible solutions? A: The low voltage power supply is under the transfer corotron. You must take out the complete fuser assembly and then the corotron transfer and a plate under this, one screw. You can buy the part at The Partsdrop. They sell a complete line of Xerox parts. A: I agree the low voltage power supply is bad. However, the advice that you can remove it by taking out the fuser will make for a very long day. The LVPS board will not clear the register rolls. The transpor |