Utax DF 420, Service Manual, Page: 28 / 53

3MJ
1-4-1
1-4 Troubleshooting
1-4-1 Paper misfeed detection
(1) Paper misfeed indication
When paper jams, the machine immediately stops operation and the occurrence of a paper jam is indicated on the opera-
tion panel.
To remove the jammed paper, lower the process table.
To reset the paper misfeed detection, detach and refit the process table to turn the tray open/close switch off and on.
(2) Paper misfeed detection conditions
Figure 1-4-1
Section Description Conditions Specified time
Finisher 80
Jam between the fin-
isher and machine Paper ejection is not output from the machine to the doc-
ument finisher within specified time of the paper convey-
ing switch (PCSW) turning on. 15 s
81
Finisher paper entry
nonarrival jam The paper conveying switch (PCSW) is not turned on
even if a specified time has elapsed after the machine
eject signal was received. 2598 ms
83
Finisher paper entry
jam The paper conveying switch (PCSW) does not turn off
within specified time of its turning on when paper is con-
veyed to the process table from the paper conveying unit. 1869 ms + Paper
length
84
Finisher eject jam The paper conveying switch (PCSW) is not turned on
within the specified time when paper is ejected to the fin-
isher tray from the process table. 2570 ms
The paper conveying switch (PCSW) does not turn off
within specified time of the its turning on when paper is
ejected to the finisher tray from the process table. 1869 ms + Paper
length
PCSW