I want to fix the electronics of my HP Laserjet M1217 nfw MFP to challenge myself. Does anyone know basic electronic or electrical repair, Video of good printer repair practices a plus.
I wanted to challenge myself to see if I could fix something I really need back. As per this post a few years ago I had this HP Laserjet M1217 nfw MFP printer that was working great until I plugged it up incorrectly to a UPS. The display and inner workings stopped functioning. See original question.
I got into one of those printer cartridge supply groups. Big mistake. Before I knew it, I had 10 cartridges lucky me. So when the printer went crazy then the display died completely. I wanted to see if I could troubleshoot it with my multimeter and find the problem and order a resistor, diode, capacitor, chip or other? it may need. Just for the challenge and to utilize the 10 cartridges. I don't really have the money for another printer and these are being discontinued along with the cartridges. So with that said. I wanted to try to fix this.
Does anyone know what the controller looks like (I assume it is different from the display panel with buttons?) on this model or knows how I can see the breakdown of each circuit board on this model HP Laserjet M1217 nfw MFP?
Does anyone have any knowledge or know of videos I can watch on how to troubleshoot test and find damaged circuitry or components. I looked for brown and or swollen capacitors etc.
Tutorials on best practices on using a multi-meter to solve these kinds of problems.
I have many different tools soldering irons testers and other safety tools to identify at least the problem. Hopefully I can replace it and build some confidence. Does anyone have any knowledge of electronic or electrical repair. My appologies in advance if my wording is incorrect or has pulled the wrong topic players into the question. Thank you for your interest.
I got into one of those printer cartridge supply groups. Big mistake. Before I knew it, I had 10 cartridges lucky me. So when the printer went crazy then the display died completely. I wanted to see if I could troubleshoot it with my multimeter and find the problem and order a resistor, diode, capacitor, chip or other? it may need. Just for the challenge and to utilize the 10 cartridges. I don't really have the money for another printer and these are being discontinued along with the cartridges. So with that said. I wanted to try to fix this.
Does anyone know what the controller looks like (I assume it is different from the display panel with buttons?) on this model or knows how I can see the breakdown of each circuit board on this model HP Laserjet M1217 nfw MFP?
Does anyone have any knowledge or know of videos I can watch on how to troubleshoot test and find damaged circuitry or components. I looked for brown and or swollen capacitors etc.
Tutorials on best practices on using a multi-meter to solve these kinds of problems.
I have many different tools soldering irons testers and other safety tools to identify at least the problem. Hopefully I can replace it and build some confidence. Does anyone have any knowledge of electronic or electrical repair. My appologies in advance if my wording is incorrect or has pulled the wrong topic players into the question. Thank you for your interest.
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No this time I did not. A family member accidentally plugged it up just as I did when she and I were cleaning up my home office. I have a giant sticker that says do not plug this directly to the UPS. She did not know what the UPS was. I was not paying attention and should have told her. I have the extension next to it which is safe to plug to. She did not understand. It has happened with scanners as well. Neat Desk. I fried it myself another accident...! After all, a plug, for the most part, looks like any other plug...at least what most of us think of. I am attempting this because recently I have had some luck with my Cars Hybrid Battery and just last week troubleshot my microwave and fixed a microswitch issue and got it working again. I have also built some cool things like a small spot welder out of some scrapyard microwave parts. So I have been getting into building useful stuff. This all came out of a situation where my refrigerator went out. I call a repairman. He opened the back pulled a small board out and said there is your problem. He pointed to a small resistor I that was burned. Went to his truck popped a new one in $400.00 total. He was in and out in 20 minutes. I asked if I could have the board. I took it and looked up the burned part. Ordered a $2.38 cent resistor and wallah. I have an almost new one. So I started thinking I could find the problem and troubleshoot it if I simply used my head and brains and not give up on the problem. You know be resourceful like my father before me. A highly respected and talented patent carrying engineer. So here I am looking to save a dollar and figure it out myself. Just to prove I am worthy.
It's probably the same part (controller board) that had to be repaired/replaced.
APC's take on UPS and Laser Printer
Due to the large amount of power consumed by these devices, APC does not recommend protecting laser printers with a UPS.
Resolution:
So the large current draw is actually causing your UPS to fail and then probably you get a power spike.
Due to the large amount of power consumed by these devices, APC does not recommend protecting laser printers with a UPS.
Resolution:
In most cases, a separate surge protection device is adequate for laser printers. It is recommended the Laser Printer have its own designated circuit, as the high current draw of a Laser Printer can "sag" the utility line causing low voltage situations. The Laser Printer should not be plugged into a UPS's Battery Outlets OR in to its Surge Only Outlets. These low voltage situations may cause an APC Back-UPS to transfer to battery operation repeatedly, eventually exhausting the unit's internal battery unnecessarily.
If you must use a UPS with a Laser Printer it is important to size your UPS appropriately. APC recommends a Smart-UPS series product that is sized for the maximum power draw of the laser printer as defined by the manufacturer. This is typically a 1500va or larger UPS. Even small Laser Printers can have very high maximum power draws, due to the nature of the technology. We do not recommend the use of Back-UPS products with a laser printer.
So the large current draw is actually causing your UPS to fail and then probably you get a power spike.
ASKER
Is the controller the "Control Panel" with the display and buttons or is the controller some circuit board on the inside? I ask because sometimes my terms are not always the correct ones. I get mixed up between the slang and the real terminology the experts use...! Go figure.
What did you replace the first time? Replace it again. There is probably a circuit board inside. I have no clue.
ASKER
The Control panel display. As seen above. This time it is different though. I already ordered another one of these. This time not the same result. It turns on just no display. I am wondering since it came out of Shenzen China....where other bad things are going on. The Control Panel Display is not working. That is why I asked if maybe a controller is a board on the inside and the control panel display is technically different...? I have looked all over for a burned spot or something that looks suspect like a swollen capacitor but nothing looks out out of sorts other than it just isn't working on the display. I could have been sent a dud but who knows.
Control Panel Display
Control Panel Display
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