[Electrical] add paper to tray 1

[Sharptech56]

I have got a MX-C402SC that says "add paper to tray 1" . The reason is because the tray won't lift . Now CLUM the lift up motor for tray 1 works in test mode and CSPD1 is the sensor that signals the lift motor
also functions properly in test mode . I have changed both and tried them in tray 2 and they work fine I have also changed the PCU board and the cassette but no lift. Any help would be appreciated.

[MFP_RX]

Re: add paper to tray 1

Lots of bad sensors in these machines. For no lift I have found CPED1 to be bad. It should change state in test mode. Check this bulletin MFP-TB-1025. Good Luck

[spanky]

Re: add paper to tray 1

The upper limit sensor for the tray is bad. Replace it and you will get lift.

[blackcat4866]

Re: add paper to tray 1

Could it be one of those lovely Sharp 73 photointerrupters that have worked so well in the past? =^..^=

[Sharptech56]

Re: add paper to tray 1

Thanks I will give it a try

[Dartplyr]

Re: add paper to tray 1

absolutely, fixed the exact problem today. take out the feed station and change both sensors

[Sharptech56]

Re: add paper to tray 1

I replaced the upper limit and paper out detectors and yes they are the same sharp detectors that fail in other Sharp mfp's
Thanks for the help.

[blackcat4866]

Re: add paper to tray 1

Congratulations on your success. =^..^=