Digital BW, The Print

sdmey4@... wrote:

> In a message dated 10/24/2004 12:28:38 AM Pacific Daylight Time, 
> E.Dinkla@... writes:
> 
> 
>>Most likely dust in front of that paper sensor or ink on it. It 
>>measures paper thickness and more.
>>
>>Ernst
>>
> 
> Well, I did locate the sensor and cleaned it but still have the error.
> The gear with the sensor flag on it in not engaged with the gear underneath 
> it?
> Since I know the sensor is clean and it seems unlikely that it decided to 
> fail during this procedure, it must have something to with the gears and the 
> "home position"
> I have the gear with sensor flag facing the sensor. Anybody have there 7000 
> open ?
> I'm not sure it the PG sensor gear(black) should be engaged with the white 
> gear underneath it. Is it safe to power the printer on without the right cover 
> on. I'm thinking it might help if I could see whats going on during power up/
> Steve M.

Only experience with 9000's but:

You mean the gear at the right of the head capping position ?
If you turn them by hand while moving the head carriage to the 
right it will snap in easily.

The real horizontal position of the head carriage itself is 
measured on the transparent code strip above the head carriage, 
the home position is related to the spot where the coded strip 
starts at the right and the metal strip there ends. Sometimes the 
head carriage sensor will not cover the coded strip enough and 
errors are created. (9000's problem so far) Dust on the sensor or 
coded strip can give similar problems. But your PG error must be 
related to a paper sensor in my book :-)

I have had a kaput paper sensor on the head carriage (left side 
head carriage, above cutter), when the head carriage started to 
move it would reach the first paper edge and return immediately 
to its capping position. Replaced the sensor and it worked again. 
Can't recall the error code then but I guess I replaced the 
sensor based on the head's movement.

Ernst