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Troubleshooting > Troubleshooting When Feeding Paper
Troubleshooting When Feeding Paper
Clearing Paper Jam under Print Head
When the paper jam under the print head occurs, the following message appears.
"System error. 7940"
Follow the steps below to clear the jammed paper, and clean the image conveying belt to prevent ink stains on the back
of the paper in the following print.
1
Turn off and on the main power switch
After powering on the machine, a jam code "J0010" appears.
2
Press [Status/Job Cancel] key to confirm the jam location
3
Wear the rubber gloves
4
Look at the jam guidance on the operation panel to clear the
jammed paper under the print head and CIS regist section
5
[Home] key > [...] > [Professional Settings] > [U740 Setup] > [06
Feed Belt] > [02 Execute] > [Start] key
“E0070” appears on [01 STEP]. Conveying belt goes to removal position.
6
When "AUTO0700" appears on [01 STEP], [02 Execute] > [Start]
key
The image conveying belt moves to the original position, and head cleaning starts.
7
After “Power off” is displayed on the operation panel, turn off
the power switch
When clearing paper jam under the print head, prepare the following.
• Rubber gloves
• Screw driver
• Kim towel white or BEMCOT
• Designated deionized water
When turning off the power switch, do not turn on it again immediately. Wait more
than 5 seconds, and then turn on the main power switch.
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