3N0/3NK/3PD/3PG
1-4-29
8140
DF tray error 1
When the main tray has
ascended, DF tray sensor 1 or
DF tray upper surface sensor
does not turn on within 20 s.
DF tray motor
1. Execute U240 Motor - Tray to check the
finisher operation (see page 1-3-7).
2. Manipulate the main tray up and down to
check it is smoothly operable.
3. Check that the drive from the motor
reaches the main tray.
4. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DF tray motor and DF Main
PWB(YC16)
5. If the wiring is disconnected, shorted or
grounded, replace the wiring.
6. Replace the DF tray motor.
DF tray sensor 1
DF tray upper
surface sensor
1. Execute U241 Finisher - Tray U-Limit,
Tray Top to check the finisher switch
(see page 1-3-9).
2. Check that the sensor and its mounting
bracket are correctly positioned.
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DF tray sensor 1 and DF Main
PWB(YC22)
DF tray upper surface sensor and DF
Main PWB(YC21,YC13)
4. Replace the DF tray sensor 1 or DF tray
upper surface sensor.
DF main PWB
Replace the DF main PWB. (see page 1-5-2)
Code
Contents
Causes
Check procedures/
corrective measures
Summary of Contents for AK 740
Page 1: ...Service Manual RFXPHQW LQLVKHU D 07 3 LUVW GLWLRQ Date 2 0 20 3 SM06 ...
Page 2: ...Service Manual RFXPHQW LQLVKHU D 07 3 LUVW GLWLRQ Date 2 0 20 3 SM06 ...
Page 4: ...Revision history Revision Date Pages Revised contents ...
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Page 17: ...3N0 3NK 3PD 3PG 1 1 4 2 Mail box option Figure 1 1 2 1 2 1 Trays 1 7 2 Mailbox cover ...
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Page 155: ...1 1 INSTALLATION GUIDE DF 791 3000 sheet finisher Installation Guide ...
Page 170: ...AK 740 Bridge unit Installation Guide ...
Page 172: ...MT 730 B Mail box Installation Guide ...