Printer and Photocopier Troubleshooting and Repair Collection. Well, buying 1. 0 year old hardware and then wanting to depend on it not. Canon Ir 6000 Copier Manual Software' title='Canon Ir 6000 Copier Manual Software' />As reliable as the LJIIIII is, they DO break. T fuser gear, paper pickup roller, pickup. AC power supply, registration assy. Its just that theyll. To replace the lower fan, have a vacuum cleaner with a brush handy or an air. Remove toner cartridgedrum unit. Close lid, remove all cables. Canon Ir 6000 Copier Manual Software' title='Canon Ir 6000 Copier Manual Software' />On a LJII, youre looking at steel. LJIII, youre looking at a large plastic tray and you have to. Phillips head screws to get it off first. On both models remove any optional memory cards by first removing the. This hatch is the one withoutthe. Remove any circuit board you find under there they just. On the back of the printer, remove any optional IO card HP Jet. Save with Free Shipping in our HP Computer Store when you buy now online. Shop our PC and Laptop Store to get amazing deals on our latest computers. The following provides a partial list of products manufactured under the Canon brand. Other products manufactured andor servicerendered under the Canon brand may. Back to PrinterCopierFax Repair FAQ Table of Contents. Printer and Photocopier Technology Dot matrix printer operation These are the only type of impact printers. Find and contact HP Customer Support, download drivers, manuals and troubleshooting information for HP products, including pcs, laptops, desktops, printers, tablets. Canon Ir 6000 Copier Manual Software' title='Canon Ir 6000 Copier Manual Software' />Direct. Appletalk, etc that may be installed next to the normal Centronics data port. This isnt always ecessarybut when it isnt it just makes things easier. Once again, just remove two screws and pull on the IO card. Now you can remove the lower pan. Nine Phillips head screws later, lift the. Centronics port cable. Vacuum the pan out it will be filled with dust bunnies and any dust you. You can now see the lower fan. Its a. squirrel cage design. Remove the short wire harness and the four screws to. Note the position of the small bracket under two of the screws, as. Reassemble in reverse order. One screw on the lower pan does NOT go in the. You cant put it in wrong if the upper half is still assembled. Collectible photographic materials, including worlds largest assortment of instruction manuals. The fan is about 2. Do NOT attempt to. Ive tried several times, and no matter what I try. From Larry Sabo sabostorm. I have an HP Laser. Jet II that will just die after a short time. There are no. power lights, not even an error message. If I leave it for a short time it. Via Rev 5 Later Usb Universal Host Controller there. It is totally random. Check the daughter board in the PSU at fault. On mine it had deteriorated. Remove it, resolder. Its worked like a charm ever. Problem and solution from Ken Eckert eckertsfu. I have a LJ II that has the following problem. The problem is a dark horizontal band starting at line 1, about 12 wide. Repeats down the page at same length as the optical drum. Problem is present only on page 1 of a print job. All other. pages are clean. When the engine is stopped at the beginning of the print. OPC in a band. Band gets. Swapping cartridges has no effect. The problem turned out to be the chassis wiring harness from the DCA. HV module. There was a bad connection between the HV module. I ended up. extracting and soldering all the crimped pins in the connector. I suspect that. it was probably the HV reset line that was the problem. I found a junked HP Laserjet II which initially jammed pulling in the paper. I have fixed that. It still jams on the output, though. It prints nicely. If I open the back tray, the sheet exits 9. With that tray closed, I get the. I do not detect any rotation of the. When opened, I can roll. I see no obvious gear wear or broken teeth. I also see. deep scratches in the grey fuser, which is probably unrelated. The toner. does not have any fusing problem that I see in a band down the page. From Tony Duell ardp. I think youve got 2 problems here the false paper jam with the tray open. Lets look a them in that order. Theres only one paper sensor in the SX engine that I know about, and thats. On the PCB at the left side of the fuser theres a slotted. Theres also a single. PCB that buffersamplifies the output from the opto switch. Q3. 32, I think. This sensor must change state one way to indicate paper has. You might start by reseating the cable at J2. DC controller board. PCB. Silly question If the paper tray switches on the DC controller board arent. Its always. possible. Alas I dont know the coding for these 3 switches SW2. SW2. 03. The other problem is almost certainly mechanical. Look at the gears on the. Shouldnt be too hard to find where the drive has. I suppose you could remove the outer casing and AC block, re insert. I have an HP IIP that goes through the 0. Self Test mode but hangs. Warm Up. The only thing I ever hear run is the fan. I am not getting any error codes otherwise. If I try to send a print job. On Line indicators light. Based on what Ive read in the FAQ and in the. Im guessing it is the DC Controller. I re seated the connections. DC controller PCB and the power supply and everything else. I do not have a service manual for this unit. Can someone tell me how to test the DC controller to see if it is. Any number of simple faults can result in the warmup sequence not completing. Check these first before suspecting a blown power supply or controller. It may indeed be as simple as a burned out bulb or broken door interlock. From Dave Lee leedjuwec. Here is what I found in my notes concerning your very same problem, Hope it. New Service Today from Parts Now, volume IV, number 1, issued in. Feb 9. 5 is devoted to the LX engine units, IIPIIP PlusIIIP Series. Cannon LBP 4, Apple Personal Laser. Writer. Lots of good stuff, error. Here is what it says. If hung on 0. 2 Warming Up, trouble may be caused by cables on the door. Also look at DC Cnt PCA, dual IO, formatter PCA. Now. also look at the solenoid for the MP pickup roller assembly. This can. cause the hung 0. Warming Up error if an open occurs in either the. To check, remove the formatter PCA in. DC Controller PCA. Locate J2. 09 on the DC Controller. Measure across the top of these pins, the. Replace the paper path door cable. Part RG1 1. 60. From Jeff Churchvara jeffcpond. Experience would have diagnosed this one in about 1. I just. didnt know what I was looking at. I started reading the FAQ and figured the worst. At first, I did not. When I finally did get a. I started checking the voltages and did not have 2. V at the DC. Controller PCA. All of what I was reading said to defeat the door interlock. At first. this didnt make sense to me because the bar that should be attached. I didnt know enough not to look any. Once I realized the bar shouldve been attached to the door, I started. The screw holding the bar must have. I ended up resetting the nut threaded sleeve by adding a screw from. Then I pinched it in place with a second screw when I. This made the bar pull away when the door opened. I forgot the basics of troubleshooting when I posted this one and was. Thanks to all of you who responded and kept me looking in the right. From Ed Paolo edpaolointac. Check to see if the image of the printout to be, is on the image drum. If it. is there and isnt being transfered to the paper then something like the high. Essentials Of Genetics 6Th Edition Pdf. From FAXFIXR justdfaxcdepot. There are two corona wires, the charge corona and the transfer corona. The. charge corona is the one you should look at. It is located in the toner. If you dont have another, then you can. If you look at the cartridge in its operating position, there. The mylar covers the corona wire but allows you to insert the little green. If the tool is there. If you hear a. slight screeching sound like a violin then the corona is there. If its. not there, then the cartridge must be replaced. From Tony Duell ardp. The following was written for HP Laser. Jet III but it is generally applicable. For starters, try a new toner cartridge. Ive found these can cause. Now, blank pages are due to one or more of. The drum is not getting exposed by the laser. The EHT power supply isnt transferring toner onto the drum. The EHT power supply isnt transferring toner from the drum to the page. HP Computer Store Laptop Store. Prices, specifications, availability and terms of offers may change without notice. Price protection, price matching or price guarantees do not apply to Intra day, Daily Deals or limited time promotions. 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