Utax 2500ci kyocera taskalfa 2251ci c7911

[avio2]

hello i have strong problem here
in advance i have changed main drive (DR895A) for problem noise and very long stabilization - reassembly and worrk correct but minimun noise to DR895C and i have changed this : AFTER C7911

i have changed in sequence : DV 8325K - PWB DRUM DLP CONNECT- PWB ENGINE CONNECT and the machine not work!!!!!!!!!!!!
i have tested whit simulation - motor-sensor and (clutch for rotate dv k)and work correctly!!!!!

it seems to me that the dv tries to fit in but for life i can't understand why and i haven't touched them

anyone have idea for this?
thank's in advance

[Scottb]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

have you check for bent pins where the DV connector plugs into

[avio2]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

have you check for bent pins where the DV connector plugs into

i have check this and moved the eprom dv card to the rear but not work!!!!!!! ever c7911

[Scottb]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

i have check this and moved the eprom dv card to the rear but not work!!!!!!! ever c7911

In that case maybe when you were replacing the drive unit the DV wire got unplugged in the back of the machine.

If it wasn't giving the C7911 before the drive unit replacement, and it came up immediately after power on. it was something that you did in the back of the machine...ie...leaving something unplugged or possibly unknowingly severing a wire.

[KYO_OEM]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

Maybe NO DV or DK would recognized.
What do you see at U117 + U984? (diff. and real SNs or not)

[avio2]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

In that case maybe when you were replacing the drive unit the DV wire got unplugged in the back of the machine.

If it wasn't giving the C7911 before the drive unit replacement, and it came up immediately after power on. it was something that you did in the back of the machine...ie...leaving something unplugged or possibly unknowingly severing a wire.

[avio2]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

Maybe NO DV or DK would recognized.
What do you see at U117 + U984? (diff. and real SNs or not)

yes sn dv k equal sn dv y

[KYO_OEM]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

look for attachment

[KYO_OEM]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

by the way,
why you didn`t ask Enrico/ Milano if you fight against UTAX 2500?

[avio2]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

look for attachment

thank i have check this bt and move and fixed pwb more rear to sk dlp

[KYO_OEM]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

if still present, remove step by step each Dv and DK , TR and Fuser until you see correct serialnumbers.
Maybe 1 DV or DK breaks the serial communication line.
Maybe yellow or bk Dv is faulty
i hate this error, have had 2 cases like this, after mounting from MK kit suddenly C791x.
Also after mounting back from original parts...
Finally we used these systems for trash.

[avio2]

[KYO_OEM]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

IC2 structure.JPG

[avio2]

[avio2]

Re: Utax 2500ci kyocera taskalfa 2251ci c7911

sn correct all part dv c-m-y dr c-m-y-k tr and fuser
only sn k is bad

you have a BIG HAMMER?