Info code=021 - Panasonic Panafax UF-885 Plain Paper Laser Fax

Press

function
7
monitor key slowly 4 times
* star key
6
scroll down to SHIPMENT SET
set
2

wait for reboot

It sounds like you had a power failure.

Press

function
7
monitor key slowly 4 times
asterisk key *
6
set
scroll down to SHIPMENT SET
set
2

fax machine should now reboot,

Press

Function
7
monitor slowly 4 times
*
6
scroll down to SHIPMENT SET
set
2

wait for the fax to initialize and come back to READY

panasonic uf744 check print info.code=021

press
function
7
monitor key 4 times slowly
*
6
scroll down to SHIPMENT SET
set
2
set

wait for the machine to re-intialize

here is the manual


http://service.us.panasonic.com/OPERMANPDF/UF585.PDF

Hi, machine error/info codes usually require service. Attempting the following involves some risk, you may loose complete access to your unit or not do anything at all. It is strongly recommended that you call a qualified service personnel/professional. However, if you feel like giving it a try while praying..... reset the system: Power on, wait for a minute or two, Function button, 7 (keypad), Monitor button (4X), soon as you hear the beep punch * (keypad). You will now be in the service menu. If no service menu, stop, do not power off, unplug. If in service menu, 7 (keypad), Set, go to Reset Option (arrow down one step), Set. Unit will prompt you to reset, press 1 for yes, system will confirm that it has completed resetting. Go back to main menu (Stop button), power down, wait again for a minute or two, power up. Please remember that resetting may, can and will erase all your personal settings and preferences including day/date/time, etc. The above steps may make your unit completely useless. If still you have the 021 code, you can brute force it to reset. Power on without a toner cartridge. In self-test, it will check itself and reset many functions to determine faults (including toner cartridge and your code 021). Wait again for a minute or two, Power off, reinseert the toner cartridge, wait again for a minute or two, and power up. If all else fails (including the prayer) pls go back to the first paragraph. The above steps are not mine but were described by a good samaritan. Hope this works out for you and lots of luck.

this code means the fuser unit has gone over temperature, as a sftey feature the mc will have to have the fuser unit reset then if the reset (which is done through service mode) doesnt fix it then it may need a new thermostat or lamp.

I see that when there is not paper in the cassette or the cassette is not shut all the way.