Load Sheets. /Remove Sheets; Open Ink Tank Cover; The Printer Cannot Be Turned On - Canon imageprograf ipf700 Service Manual

Chapter 6

6.1.2.3 Load sheets. /Remove sheets.

<Cause>
In the cut media mode, the media sensor detected absence of cut media.
When the cut media mode is switched to the roll media mode, the media sensor detected presence of paper.
<Probable fault location>
Operation method, media sensor, or main controller PCB
<Countermeasure>
1) Operation check
Check whether the message changes when cut media is loaded or unloaded.
2) Visual check
Remove foreign substances from the media sensor if any.
3) Media sensor
Select [SERVICE MODE]>[I/O DISPLAY] to check the operation. If the operation is abnormal, replacement
is required.
4) Cable continuity check
If continuity of the cable between the media sensor and the main controller PCB is abnormal, replacement is
required.
5) Replace the main controller PCB.

6.1.2.4 Open Ink Tank Cover

<Cause>
When the power is turned on, the machine detected absence of the tank.
<Probable fault location>
Operation method, ink tank, ink tank unit, or main controller PCB
<Countermeasure>
1) Operation check
Check whether the message changes when ink tanks of all colors are installed.
2) Visual check
Remove foreign substances from the contacts if any.
3) Cable continuity check
Check continuity of the cable between the ink tank and the main controller PCB. If it is abnormal, replace the
cable.
4) Replace the ink tank.
5) Replace the ink tank unit.
6) Replace the main controller PCB.

6.1.2.5 The printer cannot be turned on.

<Example of symptom>
Nothing appears when the power button is pressed.
<Cause>
Improper connection of connector, defective power connector, defective power supply PCB, defective operation
panel, or defective main controller PCB
<Countermeasure>
1) Power cord
Reconnect the power cord.
2) Connector check
Reconnect the connectors of the operation panel (J2), main controller (J1801,J2601), and power supply PCB
(J1,J45).
3) Cable continuity check
If continuity of the cable between the operation panel and the main controller PCB is abnormal, replace the
cable.
If continuity of the cable between the main controller PCB and the power supply PCB is abnormal, replace the
6-2
0014-0914
0014-0915
0014-0916