MPC 4503 DF problem

[Timmytronic]

Hi. Has anyone had the DF cause an issue on the double pass model where it jams juts after the sensor on the feed in on fresh white paper but anything printed with 1/4 page of text seems fine. ?

I have a DF on a machine that if the paper is printed on more than 1/4 page of text is fine but anything with none or very little text jams. Maybe it's a firmware update which I will try. I have replaced all the rollers and cleaned the sensors.

If this does does not work I have a spare single pass DF, are these interchangeable or do I need any other parts or software?

Thank for your time and and hope you have all had a fun summer.

Tim.

[copier tech]

Re: MPC 4503 DF problem

Does it jam it you do a DF free run in sp mode? SP6009

[ruben]

Re: MPC 4503 DF problem

Do you have a ridiculous number of jams at 16 (registration sensor)?

If so, replace the feed assembly (D684-2101), the old assemblies had two black rollers inside the feed belt, the new ones have light grey and white rollers.

Also, order the 04 double feed mod, D684-2313 & 2314, I have seen quite a bit of double feed problems with these DFs.

As a precaution we install both these mods on all the 03s and 04s now (with reverse DFs).

[andy227]

Re: MPC 4503 DF problem

Ruben, is there a tech bulletin re these new DF assemblies ?

[Timmytronic]

Re: MPC 4503 DF problem

Hi. I have replaced the feed assembly today and it is the same. It also does it in SP free run so I am still thinking a sensor. Maybe a firmware update for it. Can you change the DF from a double pass to single pass as i have a spare.

Thanks loads guys.

Tim.

[ruben]

Re: MPC 4503 DF problem

Hi. I have replaced the feed assembly today and it is the same. It also does it in SP free run so I am still thinking a sensor. Maybe a firmware update for it. Can you change the DF from a double pass to single pass as i have a spare.

Thanks loads guys.

Tim.

Did the new feed assembly have the different coloured rollers?

You can swap them easily, the upper rear cover has a removable section for the secondary scanner cable to go through. No extra boards are needed to be installed, both cables go to the same PWB. The single pass feeder uses slightly different sized locator pins (the ones at the rear of the scanner unit).

[COPIERMAN]

Re: MPC 4503 DF problem

if you think it is a sensor have you done the sensor check for it. see if they change states. If it is single pass then 6-011-001 thru 023. if old style 6-007-001 thru 023

[COPIERMAN]

Re: MPC 4503 DF problem

ADF
6007 [ADF INPUT Check]
Gets sensor information from ADF. Displays signal level of sensor as it is.
6-007-001 Original Length 1 (B5
Detection Sensor)
ENG [0 or 1 / 0 / 1/step]
6-007-002 Original Length 2 (A4
Detection Sensor)
ENG [0 or 1 / 0 / 1/step]
6-007-003 Original Length 3 (LG
Detection Sensor)
ENG [0 or 1 / 0 / 1/step]
6-007-004 Original Width 1 ENG [0 or 1 / 0 / 1/step]
6-007-005 Original Width 2 ENG [0 or 1 / 0 / 1/step]
6-007-006 Original Width 3 ENG [0 or 1 / 0 / 1/step]
6-007-007 Original Width 4 ENG [0 or 1 / 0 / 1/step]
6-007-008 Original Width 5 ENG [0 or 1 / 0 / 1/step]
6-007-009 Original Detection ENG [0 or 1 / 0 / 1/step]
6-007-011 Skew Correction ENG [0 or 1 / 0 / 1/step]
6-007-013 Registration Sensor ENG [0 or 1 / 0 / 1/step]
6-007-014 Exit Sensor ENG [0 or 1 / 0 / 1/step]
6-007-015 Feed Cover Sensor ENG [0 or 1 / 0 / 1/step]
6-007-016 Lift Up Sensor ENG [0 or 1 / 0 / 1/step]
6-007-023 Rear Edge Detection ENG [0 or 1 / 0 / 1/step]

6-011-009 Original Detection ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when original is set.
6-011-010 Separation Sensor ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when there is a paper at sensor
area.
6-011-011 Skew Correction ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when there is a paper at sensor
area.
6-011-012 Scan Entrance Sensor ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when there is a paper at sensor
area.
6-011-013 Registration Sensor ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when there is a paper at sensor
area.
6-011-014 Exit Sensor ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when there is a paper at sensor
area.
6-011-015 Feed Cover Sensor ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when cover is open.
6-011-016 Lift Up Sensor ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when lift up.
6-011-018 Pick-Up Roller HP Sensor ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when pick up roller is not in
home position.
6-011-021 Bottom Plate HP Sensor ENG [0 or 1 / 0 / 1/step]
Gets sensor information from ADF. Gives 1 when bottom plate is not in
home position.

[Timmytronic]

Re: MPC 4503 DF problem

Hiya. Sorry for the delay. Had such a busy time. So. The rollers are light grey and not dark. I decided to fit the Single scan DF as the customer is using it a lot and it seems more robust. I have fitted the little controller board and now when I switch on the machine it has 620-02 which is a communication error. So for some reason it doesn't like that. Do I have to tell the machine it's got the different DF on. The old one was for the sake machine but double scan for duplexing and not single scan.

Thanks loads. Tim.

[slimslob]

Re: MPC 4503 DF problem

Hiya. Sorry for the delay. Had such a busy time. So. The rollers are light grey and not dark. I decided to fit the Single scan DF as the customer is using it a lot and it seems more robust. I have fitted the little controller board and now when I switch on the machine it has 620-02 which is a communication error. So for some reason it doesn't like that. Do I have to tell the machine it's got the different DF on. The old one was for the sake machine but double scan for duplexing and not single scan.

Thanks loads. Tim.

[FrohnB]

Re: MPC 4503 DF problem

We've had success in "wedging" the hole where the bushing for the shaft of the Reverse Roller is. Had a string of these document feeders that showed exact same symptoms. 016, or 014 jams and paper stopping right before the transport rollers. I had one kick my butt for quite some time until we ended swapping DF's for customer. Once we had the problem feeder back at the shop, we tried everything from wrapping the one-way barrel with tape, using the update mod, other feed assemblies, etc. and to no avail. Another tech in our office played around with it for a day or so, and found that you can move the white reverse (separation) roller up/down and side-to-side quite a bit. He took the feed guide out, and between the bushing for the sep. roller shaft and the hole that bushing goes in to, took a small scrap of paper and shimmed that bushing. So far, it has fixed every DF of ours that had this issue.

[Timmytronic]

Re: MPC 4503 DF problem

We've had success in "wedging" the hole where the bushing for the shaft of the Reverse Roller is. Had a string of these document feeders that showed exact same symptoms. 016, or 014 jams and paper stopping right before the transport rollers. I had one kick my butt for quite some time until we ended swapping DF's for customer. Once we had the problem feeder back at the shop, we tried everything from wrapping the one-way barrel with tape, using the update mod, other feed assemblies, etc. and to no avail. Another tech in our office played around with it for a day or so, and found that you can move the white reverse (separation) roller up/down and side-to-side quite a bit. He took the feed guide out, and between the bushing for the sep. roller shaft and the hole that bushing goes in to, took a small scrap of paper and shimmed that bushing. So far, it has fixed every DF of ours that had this issue.

Hi. Thank you for the info. I will try this before slims idea as I had to put the old one back on. Have you a pic of where you put the paper shim?

Thank you. Tim.

[FrohnB]

Re: MPC 4503 DF problem

I will try to get a picture up here as soon as i can.

[Mark Bbb]

Re: MPC 4503 DF problem

perhaps a very stupid reply, but have you cleaned the "anti reflection plate" of this sensor?
Paper dust might fall onto it and will activate the sensor due to it's reflection ...
???
stupid

[Mark Bbb]

Re: MPC 4503 DF problem

perhaps a very stupid reply, but have you cleaned the "anti reflection plate" of this sensor?
Paper dust might fall onto it and will activate the sensor due to it's reflection ...
???
stupid

i don't now what happend but the last word "stupid" is an error...