IP7250 paper problem

[Hugorm]

Can you help with possible reasons for A4 paper not being forwarded all the time?
I've several IP7250s and two of them is having problems with forwarding paper from bottom tray.
I can't find the reason (cleaning makes no difference an wheels seem ok - free from dust).
I thought maybe firmware, the two with problem is version 1.101 one with normal paper feed is version 1.090?

 

[The Hat]

two of them is having problems with forwarding paper from bottom tray.

Try using a different ream of paper, if for whatever reason the paper your using is slightly to large (And it Happens) then the printer wont feed it..

 

[Hugorm]

Try using a different ream of paper, if for whatever reason the paper your using is slightly to large (And it Happens) then the printer wont feed it..

I use same paper on all printers (Navigator 80gr office quality)n.
I tried turning - I tried 60gr poor quality.
The paper does not get picked up (some times). Number of pages of paper in tray make no difference.

 

[PeterBJ]

I have also had this problem with two Canon printers, an iP7250 and an iP3600. The iP7250 was OK again after cleaning the pick up rollers. See this thread. The iP3600 also failed to feed paper from the cassette. The printer was almost new and the pick up rollers were clean. I didn't solve the problem. I kept the printhead and the cartridges and dumped the printer.

I remember reading about a Canon printer that had the same problem. It was caused by a spring no longer in its proper place so that the pick up rollers did not press against the paper. Reinstalling the spring in its proper place solved the problem. Maybe that is the cause of your problem?

 

[Hugorm]

I have also had this problem with two Canon printers, an iP7250 and an iP3600. The iP7250 was OK again after cleaning the pick up rollers. See this thread. The iP3600 also failed to feed paper from the cassette. The printer was almost new and the pick up rollers were clean. I didn't solve the problem. I kept the printhead and the cartridges and dumped the printer.

I remember reading about a Canon printer that had the same problem. It was caused by a spring no longer in its proper place so that the pick up rollers did not press against the paper. Reinstalling the spring in its proper place solved the problem. Maybe that is the cause of your problem?

I've check the spring around the paper feed and found no differences between the three printers.
On the sheet not being fed there are two marks after the rollers trying to feed - but paper is not forwarded.
This indicates more pages in the tray, but no change.
Something is preventing the paper from forwarding (no curls - no nothing - just two marks).
After pressing the button with the yellow light the marked paper is forwarded. If not I just have to take out the tray and put it back in.

 

[PeterBJ]

The iP3600 I gave up on behaved in exact the same way, also with marks from the rollers slipping on the paper.

If you can eject the paper by pressing a button, then I think something mechanical in the printer has come out of sync.

 

[Hugorm]

The iP3600 I gave up on behaved in exact the same way, also with marks from the rollers slipping on the paper.

If you can eject the paper by pressing a button, then I think something mechanical in the printer has come out of sync.

Mechanical out of sync?
Could it be firmware related?
Two (2) NG is version 1.101 - one (1) OK is version 1.090.
Should I compare E-prom print outs?

 

[PeterBJ]

Service tools can only be used for getting some info and changing some settings. They cannot repair a mechanical or electronic error.

The EEPROM printout lists the two or maybe ten most recent error codes. Maybe this could tell what went wrong. If the printer cannot load a sheet of paper, then the save EEPROM function will be useful.

Maybe something is wrong with a cassette? You could try the cassette from the OK printer in one of the faulty printers.

If this doesn't help then I'm out of ideas.