IR 5020 will not print or copy mulitpule pages without jamming

[TechGeek]

I usually work on sharp copiers but have been assigned to work on a IR 5020 copier.

Printing: I can print single page prints to the copier with no jamming but as soon as i try and print two or more pages the copier will jam just before entering the finisher.

Copying: If i place one original on the glass or the doc feeder i can make 5, 10, 50, 100, or as many as i need to. Once i place two or more originals in the doc feeder and try and make a copy the copier will jam just before entering the finnisher just like when printing.

I believe that the mechanics of the copier are OK since i can make multiple copies of one original. I am thinking that there may be an image processing problem or maybe an board problem. Any quick response will be greatly appreciated.

[Oze]

Do you know how to check the jam codes?
"ADDITIONAL FUNCTIONS > HOLD DOWN 2 AND 8 TOGETHER > ADDITIONAL FUNTIONS"
That'll put you into service mode then:
"COPIER > JAM" will show you the list of jam codes..

[TechGeek]

Thank you I'll get the jam codes and let you know

[mjarbar]

Hello,

Without knowing the jam codes it will be hard to say but from what you have said it does sound like a problem with the doc feeder.

Chances are that it is either a pick up or delay jam so would check the rollers and sep pads for ware and tear, make sure there isn't dust in the sensors etc.

[Kopyrtek]

Sounds like you have an inverter problem.With only one original making multiple copies, it doesnt invert.There is a solenoid at the fixing exit that will stick or get weak.More than likely the problem you have.If you try to duplex one copy you may find that you have a jam in the same place.

[20YRSEXP]

I agree the invertion or turn around/delivery area is your issue. Is the trail edge tearing or crumpling? The machine has over 750,000 copies? If you said yes to these questions I would rebuild the delivery area. replace the outer delivery rollers, auxilliary rollers and inner delivery rollers. It wouldn't hurt to replace the sensor arms in that area also.

[TechGeek]

I went out today and wrote down the most frequent jam codes / error codes

Copier Meter 275,000
Jam code 0114 and 0113 were the most frequent (44 out of 50 displayed)
Error codes E713, E713, and E607 reported from printer

No lead or trail edge problem noticed just stops and shows jam in display.

I'm still baffled why i can tell the computer to 100 pages of a single page print job and print OK but, if i have a two page print job and ask it to print 100 pages the first page will stop just before the first finisher sensor and shows jam on the display. The same is true if i use the doc feeder.

EUREKA!! I have just found something in the service manual that explains everything. When making multiple copiers of a single original the output is face up. When making copies with multiple originals the out put is face down which in return in return means the paper needs to be inverted so i concur the problem is in the inverter/reversal section.

I'll check it out tomorrow and let you guys know. Thanks for all of your help.

[Brian8506]

Definitely an inverting problem. Best thing to do is replace inverter roller, and delivery roller. Also check the white plastic flapper on the left side of the duplex for broken "wings"

[Karsten]

Sounds like you have an inverter problem.With only one original making multiple copies, it doesnt invert.There is a solenoid at the fixing exit that will stick or get weak.More than likely the problem you have.If you try to duplex one copy you may find that you have a jam in the same place.

I agree with the turnover problem. There is actually a gate that sends the paper either to the finisher or down to the duplex/turnover unit. at the end of that gate (rear of the machine) is a white plastic "arm" (has a spring attached). I have seen this arm being cracked where it is mounted on the shaft.

[Brian8506]

I forgot about what Karsten said. That white gate trigger can cause the paper to exit the machine when it's supposed to invert and vice versa.