Chapter 4 Troubleshooting
4-2. Troubleshooting
4-7 CL-E720DT
4-2-3. Problems in Printing
Symptoms Checks Remedies
No print
(Overheating
problems)
1. Is the “SA Head” over heated?
(The LCD displays “Alarm Head Hot”.)
2. Is the “SA PF Motor” over heated?
(The LCD displays “Error PFMotor
Hot”.)
3. Is “Error System Fail” displayed on the
LCD?
1. Wait until the “SA Head” gets cool.
Printing resumes automatically.
2. Wait until the “SA PF Motor” gets
cool.
Printing resumes automatically.
3. Turn OFF the power and then turn
it ON.
No print
1. Is the head block securely closed?
(The LCD displays “Error Head Open”.)
2. Is the interface cable firmly connected
between the printer and the host?
3. Is the “SA Head Cable” firmly connected
between the “SA Head” and the “SA
Main PCB” (J2)?
4. Does the transparent/reflective sensor
detect presence of media?
5. Is +24V DC supplied to the “SA Main
PCB” (at pins 6 to 9 of J13)?
J5
To Unit Power Supply
Front
J13
J2
1
9
[Bottom right of the “SA Main PCB”]
6. “SA Head” is broken.
7. Failure in the head driver circuit.
8. Failure in the control circuit.
1. Close the head block correctly.
2. Connect it firmly.
3. Connect it firmly.
4. To check, see “4-2-4 Sensor
Proble
ms".
5. Replace the “Unit Power Supply”.
6. Replace the “SA Head”.
7. Replace the “SA Head”.
8. Replace the “SA Main PCB”.
(Continued)
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General
Weight and Dimensions
