HP LaserJet Pro 400 color (M451dn)

[Hansoon]

According to the customer, his HP LaserJet Pro 400 color (M451dn) color printer does not take up paper from the tray2 (Cassette). I have not yet seen the machine myself, since the location is remote. According to the customer's information, there is no take up roller for tray 2 but a take-up segment. For me, hard to see how it's being operated in the manual. There is a clutch called CL1, but that's for the tray 1. The manual mentions a SL2 solenoid for the tray 2 present in the machine which is the first culprit in my eyes, but where to find SL2 in this beauty?

Since this printer is rather aged, and I do not want to spend too much time, I would love to know if it's a big deal to reach that solenoid and how to come there. Regarding HP, I'm a total noob....... 🙄

Thanks for any input.

Hans

[ZoZo]

There's a pickup roller...

Anything else, junk it, those things are antiques by now.

[Hansoon]

OK, got it, thanks.

However, ....IF.... for some reason I would like to work on that solenoid, how to come there? Does one really has to dismantle the whole machine for it??

Hans

[Lance15]

There is no documented procedure to get to the solenoid as is typical for these lower-end units. You'll have to figure it out. I don't mean to be so direct, but, that's how these lower-end models just are.

[ZoZo]

I've never been that deep inside one before, most of my customers opt to replace little desktop machines if the cost of repair is more than a couple hundred bucks. Considering those machines are so compact I'd imagine you're not getting to it easily & would likely have to take the main drive assembly out.

[Hansoon]

Thanks guys.

Will go into the dumpster.
What a waste of resources....., customer still has loads of toner.

Hans

[tonerjockey]

if its like the color pro MFC 477fnd there was a solenoid inside the tray 2 feed chute.
it wasn't spared separately, but by purchasing the feed unit.
i took one apart once to look for it. it was the worst job ever. it took hours i think to get everything out. literally so much to get it out. then you had to try to remember just how everything went back, hoping it would work.
i never found anything that looked bad about the part, ? clutch or solenoid. but i didn't buy the feed unit and so it still didn't work after that.

luckily it was a Junker at the customer and when i stated seeing that type of paper feed issue, where after abut 15 sheets, the paper feed roller sol. would pop and roller turned, ramming the fresh sheet into the trail edge of the prior one and would signal a jam at the fuser entrance.

i never found any advice back then to help. so that customer junked a few for that problem.

best of luck with this one.