6.1 Troubleshooting
6.1.1 Outline
6.1.1.1 Outline of Troubleshooting
iPF765 / iPF760 / iPF750 / iPF755
1. Outline
Troubles subject to troubleshooting are classified into those shown on the display (warning, error, and service call) and those not shown on the display.
The code of warning and error is shown by combining alphanumeric characters of eight digits and four digits.
The code of service call error is shown by the initial character of "E" and combining alphanumeric characters of three digits and four digits.
No code number is displayed when a warning occurs. Selecting [SERVICE MODE] > [DISPLAY] > [WARNING] in service mode allows you to check the warning
log.
2. Precautions for Troubleshooting
1) Check the environmental conditions and the media used for printing.
2) Before performing troubleshooting, make sure that all connectors and cables are connected properly.
3) When servicing the printer with the external cover removed and the AC power supplied, be extremely careful to avoid electric shock and shorting electrical
devices.
4) In the following sections, the troubleshooting steps are described such that the component related to the most probable cause of the problem will be repaired or
replaced first, being followed by components with less problem probability. If multiple components have the same problem probability, the steps are described
beginning with the easiest one.
After performing each step, check to see if the problem has been resolved by making test prints. If the problem persists, proceed to the next step.
5) After completion of the troubleshooting, check that all connectors and cables have been reconnected and screws have been tightened firmly.
6) Whenever you have performed replacement or repair services, make test prints to check whether the problem has been resolved.
6.2 Location of Connectors and Pin Arrangement
6.2.1 Main controller PCB
iPF765 / iPF760 / iPF750 / iPF755
J1001 (USB)
Pin Number
1
VBUS
2
D-
3
D+
4
GND
5
GND
6
GND
J1201 (Network)
Pin Number
1
TX+
2
TX-
3
RX+
4
-
5
-
6
RX-
7
-
8
-
J4101
1
J4102
J1801
1
1
1
J4201
1
J3901
1
J3301
1
J3302
1
J4501
1
1
J3202J3201
1
J2601
1
J3303 J3001
1
1
Signal name
IN/OUT
IN
IN/OUT
IN/OUT
-
-
-
Signal name
IN/OUT
OUT
OUT
IN
-
-
IN
-
-
J3602
1
J3601
1
J3401
1
J2951
1
J2801
F-6-1
T-6-1
USB VBUS(+5V)
USB data (-)
USB data (+)
USB GND
GND (Connector shell)
GND (Connector shell)
T-6-2
Ethernet data TX line (+)
Ethernet data TX line (-)
Ethernet data RX line (+)
Not used
Not used
Ethernet data RX line (-)
Not used
Not used
J1201
1
1
J1001
Function
Function
Chapter 6
0013-1940
0023-2571
6-1