EPSON
Table 3-8. Repairing the Printer Mechanism (Continued)
Problem |
| Symptom |
| Cause |
| Checkpoint |
| Solution |
Chapter 3 Troubleshooting
Table 3-8. Repairing the Printer Mechanism (Continued)
Problem |
| Symptom |
| Cause |
| Checkpoint |
| Solution |
Carriage operation is abnormal.
The carriage | There is a lack | ∙ | Move the | Replace |
moves slightly | of lubrication, |
| carriage by | the oil |
and then stops. | or foreign |
| hand to check if | pad. |
| material is |
| it moves | Remove |
| stuck on the |
| smoothly. | the CR |
| CR shaft or oil | ∙ | Check the CR | shaft, |
| pad. |
| shaft and oil | clean it, |
|
|
| pad to see if | and then |
|
|
| they are | lubricate |
|
|
| sufficiently | it. |
|
|
| lubricated. |
|
| The HP sensor | Check the | Replace | |
| is defective. | operation of the | the HP | |
|
| HP sensor. (See | sensor. | |
|
| Table |
| |
| Foreign | Check the HP | Remove | |
| material is | sensor. | any | |
| lodged |
|
| foreign |
| between the |
|
| material. |
| HP sensor |
|
|
|
| terminals. |
|
|
|
| The HP sensor | Check the | Connect | |
| is not properly | connection. | CN4. | |
| connected to |
|
|
|
| CN4. |
|
|
|
The carriage | The HP sensor | Check the | Replace | |
moves left | is defective. | operation of the | the HP | |
(toward the |
| HP sensor. (See | sensor. | |
home position) |
| Table |
| |
and strikes the |
|
|
|
|
printer frame. |
|
|
|
|
|
|
|
|
|
Printing is | No image is | The common | Check the | Replace |
abnormal. | printed. | wires in the | common wires | the print |
|
| print head FFC | in the print head | head FFC. |
|
| are dis- | FFC. |
|
|
| connected or |
|
|
|
| there is no |
|
|
|
| continuity. |
|
|
| The printer | The print head | Measure the coil | Replace |
| does not print | is defective. | resistance of the | the print |
| certain dots. |
| print head. It | head. |
|
|
| should be |
|
|
|
| approx. 16.4 Ω. |
|
|
|
| (See Table |
|
|
| The common | Check the | Replace |
|
| wires in the | continuity in the | the print |
|
| print head FFC | FFC. | head FFC. |
|
| are dis- |
|
|
|
| connected, or |
|
|
|
| there is no |
|
|
|
| continuity. |
|
|