The Printer Cannot Be Turned On; The Printer Is Shut Down During Power-On Or Printing; The Printer Cannot Be Connected Over The Network; Printing Error (Ink Remains.) - Canon iPF700 Series Service Manual

Chapter 6

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) Replace the power supply PCB.
4) Replace the operation panel.
5) Replace the main controller PCB.

6.1.2.6 The printer is shut down during power-on or printing.

<Example of symptom>

The printer is shut down during power-on or printing.

<Cause>
Defective printhead, head relay PCB, or carriage relay PCB
<Countermeasure>
1) Replace the printhead.
2) Replace the head relay PCB.
3) Replace the carriage relay PCB.
4) Replace the main controller PCB.

6.1.2.7 The printer cannot be connected over the network.

<Example of symptom>
The printer cannot print over the network.
<Cause>
Defective cable, incompatible hub, or defective main controller PCB
<Countermeasure>
1) Cable check
Reconnect the LAN cable.
2) Check communication settings.
If the hub is incompatible, auto negotiation may fail.
Select [Ethernet Driver] from the [Interface Setting] menu on the operation panel, and then set the network communication speed and transfer mode according to
the hub specifications.
3) Replace the hub.
Explain to the customer that the printer is normal.
4) Replace the main controller PCB.

6.1.2.8 Printing error (Ink remains.)

<Example of symptom>
Step 1
-The interface is not recognized.
-Test printing is normal but printing from the host computer is abnormal.
Step 2
-Nothing is printed.
-Both test printing and printing from the host computer are abnormal.
-Texture appears in the image.
<Cause>
Defective host computer, defective interface cable, extended interface board, dirty carriage rail, defective printhead, defective purge unit, defective linear scale,
defective carriage unit, defective head relay PCB, defective carriage relay PCB, or defective main controller PCB
<Countermeasure against trouble in step 1 >
1) Interface cable
Visually check the connector. If the connector is damaged or deformed, replace it.
2) Personal computer
Connect the personal computer in which the printer driver has been installed to the printer and check whether print data is transmitted normally. If print data is
transmitted normally, explain to the customer that the personal computer needs to be replaced.
3) When an extended interface board (IEEE1394 board) is used, replace it.
4) Replace the main controller PCB.
< Countermeasure against trouble in step 2 >
1) Dirty carriage rail
Visually check the carriage rail, and remove foreign substances from the carriage rail if any.
2) Purge unit
Visually check the cap and wiper, and remove foreign substances from them if any.
3) Nozzle row alignment check
Select [Main menu]>[Print adjustment]>[Manual head alignment]>[Advanced adjustment] to align the nozzle rows.
Carry out mechanical slant adjustment.
4) Printhead
If the trouble persists after head cleaning, replace the printhead.
5) Linear scale
If the linear scale is dirty, clean it. If the trouble persists, replace the linear scale.
6) Replace the carriage relay PCB.
7) Replace the head relay PCB.
8) Replace the carriage unit.
9) Replace the main controller PCB.
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