Utax AK 740, Service Manual

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3N0/3NK/3PD/3PG
1-4-49
1-4-5 Mechanical problems
If the part causing the problem was not supplied, use the unit including the part for replacement.
Problem Causes/check procedures Corrective measures
(1)
Paper jams.
(Bridge unit) Paper outside specifications is used. Use only paper conforming to the speci-
fications.
Check if the surfaces of the following roll-
ers are dirty with paper powder.
BR conveying roller
BR conveying pulley Clean with isopropyl alcohol.
Check if the contact between the BR
conveying roller and BR conveying pulley
is correct. Check visually and remedy if necessary.
(2)
Paper jams.
(Finisher) Paper outside specifications is used. Use only paper conforming to the speci-
fications.
Check if the surfaces of the following roll-
ers are dirty with paper powder.
Paper entry roller,Paper entry pulley
Middle roller,Middle pulley
Main tray eject roller ,Eject pulley
Left sub tray feed roller,Feed pulley
Left sub tray eject roller,Eject pulley Clean with isopropyl alcohol.
Check if the contact between the paper
entry roller and paper entry pulley is cor-
rect. Check visually and remedy if necessary.
Check if the contact between the middle
roller and middle pulley is correct. Check visually and remedy if necessary.
Check if the contact between the Main
tray eject roller and eject pulley is correct. Check visually and remedy if necessary.
Check if the contact between the left sub
tray feed roller and feed pulley is correct. Check visually and remedy if necessary.
Check if the contact between the Left sub
tray eject roller and eject pulley is correct. Check visually and remedy if necessary.