Constant Jam 71 in the document handler

Impossible to answer without 'make model (what is is)' which should be written as the first three words! Fixya scripts should offer the correct category.

You can Edit that in and the question will be put back to the top of the list.

Or you can just Google

make model carriage jam message

https://www.google.com/search?q=Continual+carriage+jam+message+Paper+feeds+half+sheet+then+carriage+jam+message+appears+and+printer+stops


..

You probably need to set the user settings to "long doc" mode.

1) When the machine is in the standby state,
press the NEW FILE key and Count Only key
simultaneously. During the user mode, the
LEDs of the NEW FILE key and Count Only
key illuminate and the address (U01-U10)
and data (the last digit) appear on the
counter display.
2) When changing the address, use the NEW
FILE key. Each time NEW FILE is pressed,
the address changes, cycling from U01 to
U10.
3) When changing the data, use the Count Only
key. Each time Count Only is pressed, the
data changes.
4) Pressing the Stop key exits the user mode.

Long document mode =U10; 0=normal and 1=long document mode.

Happy Scanning!
Scan-R-Store

Scan Store provides service and maintenance contracts on all Canon Fujitsu...

The error code 71 indicates a problem with the scanner motor for document feed. Could be timing problem, or motor problem. If tries to feed documents probably timing, no feed motor.

My advice? try running an old birthday card or something similar through several times on nozzle check

Hi,

When ever you face such type of issue, the Scanner will display U-2 error with the Red led blinking and the TWAIN display will be "The multi feed is detected.(Code DS32006)".

To resolve the issue, please follow the steps provided below:

#Check if the documents satisfy paper specification? Please refer to the Operator’s Guide for paper specification, paying
attention to the following points:

• Is there any print within 10mm x 10 mm square in the center of documents on the top?
• Is multi feed error detected by paper length when scanning documents with different length?
• Is there perforation in the center of documents?

#Check ADF and clean pick roller, Pad ASY and around DF sensor with care.

#Replace Pick roller and Pad ASY and see if the error is removed. Check the consumable counter from the TWAIN driver screen. When the counter exceeds the permitted values, replace Pick roller or Pad ASY. If the error still occurs, confirm that the cable is correctly connected then replace the sensor.

Hope the above information will be helpful.

Please revert if you have further queries.

Thanks & regards,

TechSatya

Hmm, this is too general symptom too troubleshoot. But never mind. Printer cannot feed the paper for several reasons:
Auto sheet feeder (paper feeding mechanisme) is faulty;usually generate error message on the monitor or/and error code on LCD display
Paper end did not reach paper sensor because the paper not set properly or another material block the paper path.
To find out more about this error,please check the following article exclusively for Canon printer.

Paper feed error
Paper jam error

Source: Canon Inkjet Forum

Advice is terribly difficult without a model number of your machine

Replace the paper feed roller

Fiend your solution direct from Lexmark. Here is your solution



http://www.lexmark.com/printer/prob676ijt65/solution
855

Hi! I have the same issue. The only solution I still use: select print from document with no paper in the hp's feeder. Let the printer go on "paper out" message, now put the paper into the feeder and press the print button on the printer. Success!