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• Automatic restart deals with cases when you accidentally unplugged the AC power cord or
unexpected power outages. By keeping the power flag ON, after the resumption of power,
the machine will start up automatically.
In rare cases, when you reconnect the AC power cord to a power outlet, the machine does not
start automatically. In this case, the machine has not failed. The cause is due to the timing of
releasing the residual charge. If you press the main power switch while the residual charge was
already released, the power ON flag will not be set. At this time, start the machine manually by
pressing the main power switch.
Shutdown Method
1. Press the main power switch on the left side of the machine.
2. Take out the power cord
3. Wait 3 minutes (this is the time required if you will remove the rear cover and access the interior of
the machine, to take out the controller board for example).
• If some LEDs on any of the boards are blinking or lit, current is still flowing. After the shutdown
process, the main power is turned off automatically.
When the shutdown is complete
Main power LED: Off
Operation panel LED: Off
• How to start from shutdown
• To start the machine, press the main power switch. However, if you press the main power switch
between the beginning and the end of a shutdown, the machine will not start.
Forced Shutdown
In case normal shutdown does not complete for some reason, the machine has a forced shutdown
function.
To make a forced shutdown, press and hold the main power switch for 6 seconds.
In general, do not use the forced shutdown.
• Forced shutdown may damage the hard disk and memory, and can cause damage to the machine.
Use a forced shutdown only if it is unavoidable.
4. Replacement and Adjustment
86
Summary of Contents for SP C440dn
Page 1: ...Model Z P2 Machine Codes M257 Field Service Manual April 2015...
Page 2: ......
Page 30: ...1 Product Information 28...
Page 73: ...9 Install the securing holder E 10 Reassemble the machine Tray Heater 71...
Page 86: ...3 Preventive Maintenance 84...
Page 92: ...5 Left cover B Right Cover 1 Open the duplex unit A 4 Replacement and Adjustment 90...
Page 128: ...5 Open the upper cover A 4 Replacement and Adjustment 126...
Page 131: ...4 The left stay A x 4 5 Rear holder bracket A x 2 Image Transfer 129...
Page 139: ...3 Remove the two screws 4 ID sensor board bracket A x 1 Image Transfer 137...
Page 141: ...4 Exit the SP mode Image Transfer 139...
Page 146: ...2 Temperature Humidity sensor A x 1 x 1 4 Replacement and Adjustment 144...
Page 187: ...3 Bracket A x 1 4 Release the paper feed unit A x 1 Paper Feed 185...
Page 201: ...5 Inner left upper cover page 94 6 Paper exit unit holder A x 1 Paper Exit 199...
Page 211: ...6 Release the left arm A x 1 Duplex Unit 209...
Page 215: ...3 Duplex lower guide plate A 4 Duplex upper guide plate A x 7 Duplex Unit 213...
Page 220: ...8 Right and left arms A x 2 each 4 Replacement and Adjustment 218...
Page 221: ...9 Duplex By pass motor bracket with the frame A x 6 10 Guide plate A x 4 Duplex Unit 219...
Page 230: ...Controller Box Removal E HVPS CB Board Right Cover Open F BCU 4 Replacement and Adjustment 228...
Page 245: ...5 Disconnect the connector 6 Disconnect the six connectors x 1 Electrical Components 243...
Page 254: ...4 Replacement and Adjustment 252...
Page 564: ...5 System Maintenance Reference 562...
Page 637: ...Model Z P2 Machine Codes M257 Appendices February 2015...
Page 638: ......
Page 640: ...2...
Page 648: ...1 Appendix Specifications 10...
Page 652: ...MEMO 14...
Page 653: ...MEMO 15...
Page 654: ...MEMO 16 EN...