have a skew from internal prints- ofcourse every where else. tried to adjust laser but helped only a little. I seen a post somewhere awhile back about this. never seen a resolve. any idea
-
-
Skew, skew, skew......
Wow! You're going to like this one. If it appears on self prints you can obviously rule out the optical things. There are (10) different things to check:
Skew Tip #1: Skews letter size paper from tray #1 only. Especially labels. Tray #1 paper side guides have 1+ mm gap or more to the copy paper cumulatively. Rear tray guide may be broken. Adjust the tray #1 side guides to < 0.25mm clearance to the paper and screw down both front and rear guides to minimize paper skew.
Skew Tip #2: Skews letter size paper 12 mm across the leading edge, from any tray, intermittently (2 of 20). All skewed pages have a crescent shaped wrinkle toward the copier front. Wavy copies. Post-registration paper skew. Warped pre-transfer guide (650k). Temporarily remove the pre-transfer guide ground spring. Replace the pre-transfer guide.
Skew Tip #3: Skews all paper sizes 1 to 3 mm across the trailing edge. Paper skew at the registration assembly. Worn transfer gear causes developer dumping into the registration rollers. Replace the transfer gear, drum, & blade. Clean developer from the registration assembly.
Skew Tip #4: Skews all paper sizes from a specific tray, 1 to 3 mm across the leading edge, consistently. Line blurr crossfeed, 30mm from the trail edge. Inadequate buckle at the registration roller. Use simulation 51-2 to adjust the buckle for each tray individually. Adjust buckle up until a Z-fold appears 30mm from the leading edge, then back it off 5 increments. Tray #1=85, all others=65.
Skew Tip #5: Skews all paper sizes 1 to 3 mm across the leading edge. The scanner is deformed by leaning on it. Adjust the image squareness at the adjuster under the front left corner of the scanner. If there is not enough adjustment, reform the right scanner support arm upward, tighten screws, then adjust again.
Skew Tip #6: Skews all paper sizes 1 to 3 mm across the leading edge. Laser is slightly mis-aligned. Adjust the image squareness as viewed in self print 64-1 pattern 83 at the laser slotted screw. Also adjust print off-center 50-10, original off-center 50-12, registration & lead edge void 50-1 & 50-6.
Skew Tip #7: Skews all paper sizes 1 to 5 mm across the leading edge intermittently. The transfer roller is worn, larger at center smaller at the ends. Replace the transfer roller.
Skew Tip #8: Skews letter size paper from tray #1 only. A paper scrap remains in the vertical pinch rollers toward the front of the paper path. Remove any paper from the vertical path.
Skew Tip #9: Skews letter size paper from tray #1 only. Worn part in the registration assembly. Replace the registration assembly (CGIDM1887DS51).
Skew Tip #10: Skews letter size paper from tray #1 only. Also flips front corner of the leading edge. The customer has removed the paper guide in front of the feed tire assembly in tray #1. Replace the paper guide (PCOVP1543FCZZ).
As you can tell these machines are well known for skewing, especially paper skewing from tray #1. I really can't give odds on this one. All these situations are extremely common. Usually two or three at the same time, which it makes it hard to diagnose. Please let me know what you find.If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^= -
Thanks blackcat it was the regristration unit. what goes wrong with them. we are in the process of switching from toshiba anolog to these. the regristion rollers hardly ever gave a problem on the toshibas especialy skewing. we tried a few toshiba 550 and 650 and a couple of sharp 651 but kept having to many quriky problems. could not get hardly any decent fuser life. they will be for sale in near future. we have sharp cds and manuals but are having a little trouble understanding sharp gargen but we'll catch on. so far as a whole the sharps are doing well. one more question, some machines print the list print and others won't they act like their going to but don't. then you have to clear print job or turn machine off. I thing it's a setting but haven't found it yet. Do you know the setting? we though that it might have something to do with the network print card as we pull them off as most are going into schools. but some will print the list print and so won't without the network card.Comment
-
What goes wrong with the registration assemblies?: The bushings start to seize, usually at the front. Since the drive is at the rear a gap opens between the reg rollers at the rear. Sometimes cleaning the bushings helps if it's not too far gone. The bushings can oval out.
The AR-651 fusers never lasted for us either. When the fuser codes kept popping up because of the excessive fuser oil, the only thing we could think of was to remove the webs. The thermistors stayed cleaner, but the teflon on the upper roller didn't last.
Sharp is unique with some of their jargon. For example, that registration assembly for every other manufacturer, is a PS Assembly or Paper Stop Assembly for Sharp.
If you're talking about a 22-1 or 22-6 report, I have not had any problems with reports not printing. It shouldn't make any difference if the network cards are removed. Now if it is the printer config page, sure, it won't print that without the network card.If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
-
appreciate you help on the skew problems the tip sheet is great. got a few more questions for you. on the not printing I am talking about from keyboard touching "custom setting" touch "list print" and "all custom settings list". some of our machines will print out and some won't. the ones that don't print will fire up like they are going to but won't. is this a setting somewhere? Also how long will developer units run? copy counts.
have one now that has around 400k and it is causing a background on front 1/3 of copy as it exit machine on first side thru. hardly can see it on second side. will do it on running single side only. I know it's in developer unit as problem will transfer to another machine. have replaced developer,side seals and blade from kit. this problem was there before replacing dev and parts. only use oem. have another dev unit that came out of a machine with 950k and it appears to have same or very simular problem. so if they need replacing every so many copies what is the cost of replacing a dev unit? also you said you removed the cleaning web on the 651s'. did you get any service life from them. what kept them from jamming at fuser all the time appreciate any reply.
jpComment
-
Just a guess here. Perhaps some of this data is compiled on the print card, or processed through the print card (for printing). I don't exactly get why you would remove the print card. They paid for it, didn't they? You know the CE-00 error message can be turned off with a simple soft switch setting.
Tiger developing units have lasted anywhere from 1M to 2M. Our dealership never rebuilt developing units. Usually the rear end of the mag roller twists right off. The copies go light, because all the toner is consumed out of the developer on the front of the roller. Or the drive couper starts to jump, (same effect). On a side note: these developing units have to be level to get even fill. If you remove the fuser you can use that flat plate as a reference for your bubble level. I don't know the cost, sorry.
The shading on one side only can be an optical problem. The way this happens, is that a tech tries to adjust for original skew by adjusting the angle of the SPF. The white plate must be exactly aligned with the slit glass, or the CCD starts to see the angled edge of the white plate and will darken one side front of the machine side of the original. The answer to this is to take your millimeter scale, lower the SPF as low as you can, and measure the distance between the edge of the slit glass and the white plate on top. Adjust the right SPF hinge so that the dimension is the same, front and back.
Removing the web on the AR-651 bought us 100k to 150k on a fuser kit, instead of 25k between cleaning thermistors and clearing fuser codes. Its not the 300k its supposed to last, but a vast improvement. Never claw jams, usually we replacer fuser kits for multiple imaging. I have been recommended by a Toshiba tech that the best course of action is to leave the web in, and remove the lower oil supply roller. Also replace the web pressure roller at the rebuild, and substitute a bronze bushing for the one way bearing.
I hope that I covered everything.If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
-
we remove the nic,HD,and fax if they have one. no, the customer has not paid for them as these are used machine we are getting ready for resale or rent or cost per copy plans. the stuff the customer wants to pay for, we leave. these extra parts can be usefull down the road for contracts. the developer units must be my problem. don't know if I explained right. dirty back ground only bearly shows on 8 1/2x 11 on first side thru but the more copies you run the more it shows. doesn't show on second if doing two sided. does not effect print . where it realy shows is on 11x17. I know , not many people use that much 11x17 but we show it on every install. it's appearing that it is a problem with most dev units with over 300k. we have several machines that we are going thru and the dev units under 300k do the 11x17 ok but the ones with more are doing it. swapping good lowcount dev into high count machines makes them work as for as backgrounding on copy front side. appears the more counts on the dev units the more backgrounding you get on 11x17. appears mag roller is out of round as some areas appear darker background as a roller might do. if I have to buy dev units to get them out I will. I think they are around a 100 bucks, but if someone has an answer I would appreicate. wouldn't mind spending an hours time to fix if it can be done.
Thanks for any responce
jpComment
Comment