Olivetti DF-790 Service Manual page 86

Problem
(3)
Paper jams.
(Center-folding unit)
(4)
Paper jams.
(Mail box)
Abnormal noise is
heard.
Service Manual
Causes/check procedures
Paper outside specifications is used.
Check if the surfaces of the following roll-
ers are dirty with paper powder.
CF paper conveying roller 1
CF paper conveying pulley
CF paper conveying roller 2
CF paper conveying pulley
CF paper entry roller
CF paper entry pulley
CF paper conveying roller 3
CF paper conveying pulley
CF eject roller
CF eject pulley
Check if the contact between the CF
paper conveying roller 1,2,3 and CF
paper conveying pulley is correct.
Check if the contact between the CF
paper entry roller and CF paper entry pul-
ley is correct.
Check if the contact between the CF
eject roller and CF eject pulley is correct.
Paper outside specifications is used.
Check if the surfaces of the following roll-
ers are dirty with paper powder.
Paper conveying rollers
Paper conveying pulleys
Eject roller
Eject pulley
Check if the contact between the Paper
conveying rollers and Paper conveying
pulleys is correct.
Check if the contact between the Eject
roller and Eject pulley is correct.
Check if the rollers, pulleys and gears
operate smoothly.
Use only paper conforming to the speci-
fications.
Clean with isopropyl alcohol.
Check visually and remedy if necessary.
Check visually and remedy if necessary.
Check visually and remedy if necessary.
Use only paper conforming to the speci-
fications.
Clean with isopropyl alcohol.
Check visually and remedy if necessary.
Check visually and remedy if necessary.
Grease the bushes and gears.
1-4-33
3NB/3ND/3N0/3NK
Corrective measures
Y113480-7