• Fatal SC codes, or "A" Level SC codes, alert the operator to a problem that is a potential fire
hazard. These fatal SC codes are related to problems that occur in the fusing unit: SC541, SC542,
SC543, SC544, SC545, SC559.
• When Fuser SC Detect is switched on, the machine will shut down after the third consecutive fusing
jam error. This setting should remain on for safety.
• Also, a fatal error (fusing related SC code) occurs, the machine cannot be serviced until the service
technician releases the error by clicking [Fuser SC Reset] on the Service Mode screen.
• After correcting the problem that caused the fatal SC code to be issued, the service technician
must execute [Fuser SC Reset] in order to recover full operation of the machine. Otherwise the
machine will continue to issue the same SC code even after the problem has been corrected.
When an Error Occurs
The machines have different operation panels and components so this affects how each machine alerts
the operator when a problem occurs.
• When an error occurs, the alert indicator on the operation panel lights and the machine stops.
• A buzzer will sound an alert on the 4in1. Press any key on the operation panel to turn the buzzer
off. (This is the fax speaker that also functions as an error alarm.)
• There is no buzzer alert for the printer or 3in1. The SC number can be displayed on the Service
Mode screen of the Smart Organizing Monitor. ( page 159)
• The printer has no panel display. When an error occurs only the alert lamp lights [1].
6. Troubleshooting
190
Содержание M178-21
Страница 2: ......
Страница 24: ...22 ...
Страница 69: ... Front cover Left cover 1 Disconnect the fusing unit harness A 1 2 Free the harness B 2 Basic Procedures 67 ...
Страница 71: ...6 Disconnect the thermistor harness 1 7 Disconnect the exit sensor 1 Basic Procedures 69 ...
Страница 90: ...Friction Pad 1 Remove 3 screws 3 2 Release 2 tabs 2 4 Replacement and Adjustments 88 ...
Страница 103: ...Solenoid 101 ...
Страница 105: ...2 Remove the breaker switch screw A 1 3 Disconnect and remove the switch B 2 Switches 103 ...
Страница 108: ...4 Replacement and Adjustments 106 ...
Страница 117: ...Ground Plate 1 Note the correct position for the ground plate before re installation Fusing Unit 115 ...
Страница 133: ...3 On the left side slide the base of the supply plug off its mount 4 Disconnect both connectors 2 PCB 131 ...
Страница 143: ...Filling the AIO with New Toner 1 Remove the round cap of the toner supply tank with a screwdriver Refilling the AIO 141 ...
Страница 190: ...5 System Maintenance Reference 188 ...
Страница 221: ...MEMO 219 ...
Страница 222: ...MEMO 220 EN ...
Страница 224: ......
Страница 226: ...2 ...
Страница 237: ...Scan Area TWAIN Driver Flatbed Margin Width mm A Left 0 B Right 0 C Leading 0 D Trailing 0 Machine Specifications 13 ...
Страница 250: ...MEMO 26 ...
Страница 251: ...MEMO 27 ...
Страница 252: ...MEMO 28 EN ...