1 00:00:06,900 --> 00:00:08,790 - [Narrator] Troubleshooting common printer issues, 2 00:00:08,790 --> 00:00:10,080 part three. 3 00:00:10,080 --> 00:00:12,330 And you can see we have our image 4 00:00:12,330 --> 00:00:17,130 of our laser printer components, our diagram here. 5 00:00:17,130 --> 00:00:19,590 And you'll want to refer to this. 6 00:00:19,590 --> 00:00:20,430 And we're gonna talk about 7 00:00:20,430 --> 00:00:24,300 three different issues you might see. 8 00:00:24,300 --> 00:00:28,980 The first is vertical lines on the page, as well as streaks, 9 00:00:28,980 --> 00:00:32,940 smearing and toner, not fusing to the paper. 10 00:00:32,940 --> 00:00:34,530 This is all part of, 11 00:00:34,530 --> 00:00:39,120 okay the toner isn't looking right on the page issue. 12 00:00:39,120 --> 00:00:44,120 And so black lines or streaks can be caused by a scratch 13 00:00:45,750 --> 00:00:47,280 on the print drum. 14 00:00:47,280 --> 00:00:48,870 So you might see that sometimes. 15 00:00:48,870 --> 00:00:51,090 And if there's a scratch on there, 16 00:00:51,090 --> 00:00:54,630 then the toner's gonna kind of, fill in that scratch 17 00:00:54,630 --> 00:00:56,400 and that's gonna get applied to the paper. 18 00:00:56,400 --> 00:00:59,100 So you get those black lines or streaks. 19 00:00:59,100 --> 00:01:00,120 And usually in this case 20 00:01:00,120 --> 00:01:03,660 the whole toner cartridge needs to be replaced. 21 00:01:03,660 --> 00:01:06,870 You might also get white lines on the paper. 22 00:01:06,870 --> 00:01:11,040 This could be caused by a dirty Transfer Corona Wire. 23 00:01:11,040 --> 00:01:14,130 You know, and we're talking about horizontal lines. 24 00:01:14,130 --> 00:01:16,800 If you have some dirt specs here, 25 00:01:16,800 --> 00:01:18,810 every time this turns 26 00:01:18,810 --> 00:01:23,430 that dirt spec will be placed against the paper. 27 00:01:23,430 --> 00:01:27,090 And that'll cause the Transfer Corona Wire to fail, 28 00:01:27,090 --> 00:01:29,130 right in that little spot. 29 00:01:29,130 --> 00:01:33,090 And it won't pull the toner off of the print drum. 30 00:01:33,090 --> 00:01:36,600 So you get those white lines, every, you know, inch or so 31 00:01:36,600 --> 00:01:39,300 or every half an inch or less. 32 00:01:39,300 --> 00:01:41,220 So in that case you can replace 33 00:01:41,220 --> 00:01:44,193 or clean the Transfer Corona Wire. 34 00:01:46,170 --> 00:01:50,610 You might also see wide white vertical lines. 35 00:01:50,610 --> 00:01:53,883 And those can occur when something is stuck to the drum. 36 00:01:55,230 --> 00:01:59,460 Every time the drum turns, it puts a line 37 00:01:59,460 --> 00:02:01,893 or a smear on the paper. 38 00:02:07,440 --> 00:02:08,643 Redo that sentence. 39 00:02:09,900 --> 00:02:12,150 Every time the drum turns 40 00:02:12,150 --> 00:02:14,490 it'll create that vertical line on the paper 41 00:02:14,490 --> 00:02:19,140 in that one area where the drum has something on it. 42 00:02:19,140 --> 00:02:21,780 So, you know, you have to watch for that, also. 43 00:02:21,780 --> 00:02:23,910 You might get some white lines because the drum. 44 00:02:23,910 --> 00:02:26,430 And then again, the toner cartridge would need to 45 00:02:26,430 --> 00:02:27,903 be replaced in that case. 46 00:02:28,920 --> 00:02:33,150 Smearing can occur if the Fusing Assembly fails. 47 00:02:33,150 --> 00:02:34,380 In this case, you might notice 48 00:02:34,380 --> 00:02:37,290 some of the toner coming off the paper 49 00:02:37,290 --> 00:02:42,060 and it gets on your hands because it wasn't fused correctly. 50 00:02:42,060 --> 00:02:44,100 You know, that means that the Fusing Assembly has failed. 51 00:02:44,100 --> 00:02:45,690 The heat isn't working 52 00:02:45,690 --> 00:02:48,210 or the rollers aren't working properly. 53 00:02:48,210 --> 00:02:51,090 And you can replace, you can sometimes clean the rollers, 54 00:02:51,090 --> 00:02:53,853 but usually you'll have to replace the Fusing Assembly. 55 00:02:54,990 --> 00:02:57,210 If it's an ink jet printer, 56 00:02:57,210 --> 00:03:01,350 one or more of the ink cartridges might need to be cleaned 57 00:03:01,350 --> 00:03:03,870 or replaced in this case. 58 00:03:03,870 --> 00:03:06,540 And the printer might need to be calibrated. 59 00:03:06,540 --> 00:03:08,070 If you see this type of thing, 60 00:03:08,070 --> 00:03:10,650 where you're getting a lot of ink on the page 61 00:03:10,650 --> 00:03:13,350 and you can actually, you know, it gets on your hands. 62 00:03:14,220 --> 00:03:15,630 But for the laser printer, 63 00:03:15,630 --> 00:03:17,370 you're gonna check that Fusing Assembly 64 00:03:17,370 --> 00:03:19,500 if you see smearing occur. 65 00:03:19,500 --> 00:03:20,550 So that's the first issue, 66 00:03:20,550 --> 00:03:24,210 those vertical lines, the streaks, the smearing 67 00:03:24,210 --> 00:03:26,550 and the toner, not fusing to the paper. 68 00:03:26,550 --> 00:03:28,320 These are all toner issues. 69 00:03:28,320 --> 00:03:30,930 You know, these are all part of the paper 70 00:03:30,930 --> 00:03:32,670 is not looking right. 71 00:03:32,670 --> 00:03:34,860 It's not getting the right images on there 72 00:03:34,860 --> 00:03:37,593 because of some kind of physical failure here. 73 00:03:38,805 --> 00:03:42,030 And the second issue, garbage printout 74 00:03:42,030 --> 00:03:45,333 or garbled characters on the paper. 75 00:03:46,290 --> 00:03:49,740 This can occur due to an incorrect driver. 76 00:03:49,740 --> 00:03:52,380 Some technicians like to try close drivers, 77 00:03:52,380 --> 00:03:55,560 and it's not a good idea, cause you could get this issue. 78 00:03:55,560 --> 00:03:57,810 So you wanna use the exact driver 79 00:03:57,810 --> 00:04:01,770 for the exact model of the printer 80 00:04:01,770 --> 00:04:03,120 and it has to correspond 81 00:04:03,120 --> 00:04:05,340 to that version of the operating system 82 00:04:05,340 --> 00:04:07,350 that you're using as well. 83 00:04:07,350 --> 00:04:08,520 Also you wanna make sure you know 84 00:04:08,520 --> 00:04:10,980 whether you're using postscript or PCL. 85 00:04:10,980 --> 00:04:14,550 So what type of printing system. 86 00:04:14,550 --> 00:04:17,160 In addition, a bad Formatter Board 87 00:04:17,160 --> 00:04:21,000 or printer interface can cause a garbage printout. 88 00:04:21,000 --> 00:04:23,880 And these are usually replaced on the side of the printer. 89 00:04:23,880 --> 00:04:26,370 You know, there'll be a cover with two screws 90 00:04:26,370 --> 00:04:27,870 that you replace. 91 00:04:27,870 --> 00:04:31,683 You remove the cover and then replace that board at PCB. 92 00:04:32,760 --> 00:04:35,397 And the third image is the ghosted ima-- 93 00:04:36,450 --> 00:04:37,683 Do that sentence again. 94 00:04:40,140 --> 00:04:43,920 And the third issue is the ghosted image. 95 00:04:43,920 --> 00:04:46,980 Ghosted images or blurry marks 96 00:04:46,980 --> 00:04:51,783 can be a sign that the drum has some minor imperfections, 97 00:04:53,430 --> 00:04:55,230 especially if the image reappears 98 00:04:55,230 --> 00:04:59,190 at equal intervals on the paper or on every paper. 99 00:04:59,190 --> 00:05:00,780 So you wanna replace the drum 100 00:05:00,780 --> 00:05:05,220 if possible or just replace the entire toner cartridge. 101 00:05:05,220 --> 00:05:06,630 Another possibility is that 102 00:05:06,630 --> 00:05:10,320 the Fuser Assembly has been damaged and needs to be replaced 103 00:05:10,320 --> 00:05:13,770 but usually it's gonna be something with the drum 104 00:05:13,770 --> 00:05:17,430 and the toner cartridge, if you have a ghosted image. 105 00:05:17,430 --> 00:05:20,460 So there's three more issues for printers. 106 00:05:20,460 --> 00:05:24,270 Again, know your components on a laser printer 107 00:05:24,270 --> 00:05:26,920 to be able to figure out what the problem is 108 00:05:27,810 --> 00:05:29,510 and that's it for this sub lesson.