Canon imagePRESS C800 Series, Troubleshooting Manual

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Chapter 1
1-14
Cause
While the trailing edge of the paper passes through the registration roller, if the same paper is slipped slightly at the nip of the secondary transfer roller, the behavior
of paper becomes unstable.
At this time, if the paper comes in contact with the ITB that is located in upstream of the secondary transfer roller, the toner image on ITB is deranged and the above
mentioned symptom occurs.
Under high temperature and high humidity environment, if the speed of the registration roller is higher than that of the secondary transfer roller and the paper is fed
in a sort of pushing manner, the behavior of the paper becomes unstable and likely to have the symptom.
Service work
1) Have the customer log in from System Management Mode in user mode.
2) Go to Preferences > Paper Settings > Paper Type Management Settings, select an appropriate paper type from among the list, press "Duplicate" button and then
"OK" button.
3) Enter any name as the duplicated paper type and press "OK" button.
4) Select the paper type duplicated in the step 3) and press "Details/Edit".