3NB/3ND/3N0/3NK
1-4-32
1-4-4 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.
Paper conveying roller
Paper conveying pulley
Feedshift roller
Feedshift pulley
Eject roller 1,2
Eject pulley 1,2
Clean with isopropyl alcohol.
Check if the contact between the paper
conveying roller and paper conveying
pulley is correct.
Check visually and remedy if necessary.
Check if the contact between the feed-
shift roller and feedshift pulley is correct.
Check visually and remedy if necessary.
Check if the contact between the eject
roller 1,2 and eject pulley 1,2 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.
Y113480-7
Sevice Manual
Содержание DF-790
Страница 1: ...SERVICE MANUAL Options DF 790 BF 730 MT 730 AK 730 PH 7C Code Y113480 7...
Страница 4: ...This page is intentionally left blank...
Страница 10: ...This page is intentionally left blank...
Страница 30: ...3NB 3ND 3N0 3NK 1 2 12 5 Remove tape from the bridge drive unit Figure 1 2 15 Tape Service Manual Y113480 7...
Страница 32: ...3NB 3ND 3N0 3NK 1 2 14 3 Remove tape and pad Figure 1 2 18 Tape Pad Service Manual Y113480 7...
Страница 34: ...3NB 3ND 3N0 3NK 1 2 16 This page is intentionally left blank Service Manual Y113480 7...
Страница 53: ...3NB 3ND 3N0 3NK 1 3 19 This page is intentionally left blank Y113480 7 Sevice Manual...
Страница 87: ...3NB 3ND 3N0 3NK 1 4 34 This page is intentionally left blank Y113480 7 Sevice Manual...
Страница 93: ...3NB 3ND 3N0 3NK 1 5 6 This page is intentionally left blank Y113480 7 Sevice Manual...
Страница 127: ...3NB 3ND 3N0 3NK 2 2 10 This page is intentionally left blank Y113480 7 Sevice Manual...
Страница 149: ...3NB 3ND 3N0 3NK 2 3 22 This page is intentionally left blank Y113480 7 Sevice Manual...