af2045 id sensor

[banginbishop]

Ok i have the above m/c giving me problems. I done a service inc dev - set up ok. ordered a new pcu as the old one was broken. Fitted the new pcu and done the id set up but the copies came out faint. Checked the vsp/vsg etc and what should have been 4.0v for a brand new drum and 0.25v for the patch was either 3.88v and 0.01v or over 2-3v for the patch. Now the way i look at it is as the m/c is thinking it has too much toner in it i.e the patch is reading to high so its refusing to pump toner in so im thinking the id sensor is faulty.

any other ideas - ive attached the first page of the smc.

[jonhiker]

I will try performing the 2801 and 2805 a second time and re-check the VSG &VSP readings to see if it comes to normal. What happens after a forced toner add(only once!) and then run about 50 partial skyshots to see if the density holds.
If the problem persists, then i would replace the ID sensor(A232 2367) and the TD sensor(B213 3065)

[aabarnes1]

Did you cover the dev entrance during dev init.? Did you init. the id sensor and clean it? Also clean the transfer roller. Stop the copy half wat thru and inspect the image on the pcu. Manually input all your values to default and go from there

[banginbishop]

I never do a Developer Initialization twice or TD twice - screws the dev settings up. When i first checked the vsp vsg figures they were 3.8v (grid) and 0.01v (patch), i then cleaned the id senser and the figures for vsdp and vsm came in from 0.1v but the vsp was way over the 0.25v. I cleaned it again and the figures when back to the old set of 0.01v which is why im leaning towards the id sensor being screwed hence vsp is above 0.25v m/c thinks its overtoned so witholds the toner.

I have stopped the copy half way and the image is faint on the drum which i expected and on inspection of the dev unit - its starved of toner. sky shots are grey not black, transfere roller is clean as a whistle (full pm) and to be honest ive never had a problem with setting dev up with the entrance open.

[aabarnes1]

I never do a Developer Initialization twice or TD twice - screws the dev settings up. When i first checked the vsp vsg figures they were 3.8v (grid) and 0.01v (patch), i then cleaned the id senser and the figures for vsdp and vsm came in from 0.1v but the vsp was way over the 0.25v. I cleaned it again and the figures when back to the old set of 0.01v which is why im leaning towards the id sensor being screwed hence vsp is above 0.25v m/c thinks its overtoned so witholds the toner.

I have stopped the copy half way and the image is faint on the drum which i expected and on inspection of the dev unit - its starved of toner. sky shots are grey not black, transfere roller is clean as a whistle (full pm) and to be honest ive never had a problem with setting dev up with the entrance open.

It sounds like your td sensor then, do you have a spare dev unit you could try?

[banginbishop]

new dev unit the old one seized up and broke the auger inside a few months ago.

[Besserwisser]

HI there

Did you use the right developer B079 9640.... ??

[banginbishop]

went back today to fit an id sensor but before i took it apart i took a meter reading and discovered the CQ perfect. checked the vsp/vsg both correct so im no nearer to working out what was causing it but its working fine.