Riso ComColor IS900C Instruction Manual page 122

X02-1101/W56-1300/S98-0114/Z-folding
X02-1101: The paper gate detects paper lifting or wavy condition during the paper feeding
W56-1300: The paper size detected by the system does not match with transferred paper size
When paper is jammed with Z-folding condition on the BP belt with above errors, BP belt rotation might not be smooth.
Especially A3 paper has this symptom relatively.
Checking points
1. Clean the both sides of BP belt
2. Apply Head cleaner C underneath of BP belt
3. If Z-folding paper jam still occurs, reduce the BP suction value from 100 to 80 using TM1809 (Default is 100)
Registration roller
Guide roller
122
Slow down
BP unit
Apply some liquid underneath of BP belt
790-14076-005 HEAD CLEANER C (1000 ml)
Z-folding
Maintenance
Paper Jam