28 February '91
3. Paper leading edge jams under the drum.
Is the printing pressure correctly applied to the drum?
Yes
No
Does the printing pressure solenoid turn on?
Yes
Is the clearance between the printing pressure stopper and the
stopper pin correct?
Is the printing pressure timing correct?
Yes
No
Adjust the timing. (See page 5-56.)
Is the paper detecting pin moving normally?
Yes
No
Adjust the pin position. (See page 5-54.)
Is the upper second feed roller moving normally? (The upper second feed
roller should move up when the pressure roller contacts the drum.)
No
Adjust the roller up/down timing.
No
Check the solenoid in I/O check mode.
No
Adjust the clearance. (See page 5-58.)
7-14