Lamar 1400 message "Perform Scheduled

Machine might have calling for a clean cycle for a while, if it does not get one it lock up until cleaned.

This just means that the techs at Facebook have turned off the Facebook website for a period of time to install new software. They can't install it while the site is up and running. The time period that the site is down is usually not long and is usually late at night or on weekends (unless it's an emergency). There's nothing you can do until they restore the website. Scheduled maintenance happens at most websites, so you may see this message occasionally at other sites too.

Hi, please open the cover where is motor and controller board motor, and see if there are some loose cable. And if NOT tight very well all connector, and wires with a plier.
and turn ON again. If the machine after that present the same problem, you must replac the Controller board motor.
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Check the connector to the belt motor.

This means that the printer is due for it's scheduled maintenance. Things like paper feed rollers, separation roller, transfer roller and fusing unit are due. Now if I were you I would just ignore it as long as you are not having a lot of jamming problems or double imaging/print rubbing off issues. I have seen these HP's run way past the maintenance schedule. You will do absolutely no harm if you continue to run it. The parts that are due to be replaced will continue to wear and eventually you may have to do at least some or all of the maintenance but for now I would not worry about it at all unless like I said you are having problems. As a side note I work on HP laser printers for school districts that do not want to spend money on printers so I have seen lots of these printers with the "perform maintenance" indicators on for a year or more with no problems.
Good Luck and Thank You for using Fixya.

you need a technician with a diagnostic tool.. The thing about these cars is every time you do something you need to reset the counter on the cars computer.. This can only be done with a diagnostic tool

This issue is just like changing your oil or the timing belt on your car. If you don't fix it correctly it leads to other problems. So, be warned. :+)

Here's what the Lexmark KB says:

On the Lexmark T520/522 series printers, we recommend that the maintenance kit be replaced after every 250,000 pages. If possible, an authorized service technician should replace the maintenance kit parts on these printers.

On the Lexmark T620/622 series printers, we recommend that the maintenance kit be replaced after every 300,000 pages. The maintenance kit parts for these printers are customer-installable, but some dismantling of the rear area of the printer is involved.

Note: The maintenance kit may need to be replaced more often if the customer is running heavy media (like card stock or labels) through the printer.
It is possible to clear the maintenance error message without replacing the kit. The printer will still operate, but some print quality problems may arise. However, this is not recommended as the message serves as a reminder that maintenance is due. If the printer is under warranty, the customer has to purchase the maintenance kit and have it replaced in order to keep the warranty active, although the on-site replacement itself may be covered under the warranty.
The parts that make up the maintenance kits are:
A fuser unit
A transfer roller
A charge roller
To find the part number of the maintenance kit needed for your printer, see Printers / Maintenance kits.
Clearing the maintenance message
To clear the message, you will need to go into the printer's configuration mode. Do the following:

1. Press and hold the SELECT and the RETURN buttons as you power the printer on.
2. Hold the buttons for six to eight seconds after turning on the power, then release them. (If you receive the maintenance message, press the Go or the Select button to continue past it.)
3. Now, press the right Menu arrow until you see RESET MAINT CNT.
4. Select this. You may need to press the Select button again. The printer display should briefly flash SAVED.
5. Power the printer off and then back on in the normal way. The printer should now power up normally.
6. If it does not and the error returns, repeat the above procedure.

Contact clubhouse, overiding or attempting to change setting may cause more damage than good. Especially if you don't know what you are doing.

Press and hold for 6 seconds the UP buttons for Speed and Incline.
Then you're ready to run again!  YAY!

There is a great video that shows step by step how to install the fuser, transfer roller, charge roller, pick up tires and then reset the 80 Scheduled maintenance message