100
Maintenance
Fault Finding
Fault Finding
In connection with service of the printer it is good practice to remove paper dust and lint from the paper path, cutter and sensor areas. Paper dust, when accumulated, may interfere with printer functions such as optical sensors.
To avoid smudging the paper, do not apply oil on the cutting knife.
Table 6 • Fault Finding
Sympton | Suggest Actions | |
|
| |
Nothing is printed when you press | • Check that the paper roll is turned the correct way | |
the |
| with thermal sensitive layer facing up. |
mode, but the document is | • Check that the paper used meets the paper | |
transported, cut and ejected. |
| specification. See Paper Specification on page 112. |
| • Check that the print head ribbon cable is fully | |
|
| inserted into the connectors at each end. |
|
|
|
Paper jam | • | Check |
|
| |
Printer does not work at all | • Check that the paper release lever is lowered (print | |
|
| head presses against the paper). |
| • Check that power is supplied to the printer. | |
| • Check the function of the | |
|
| |
• Check that both ends of the interface cable are | ||
works strangely in normal |
| properly connected. |
operation. | • Application program might be incorrect. Contact | |
|
| system manager. |
| • If using the serial interface, ensure that all | |
|
| communications parameters match the PC's serial |
|
| port configuration |
|
| |
No cutting | • Check that the connectors for the cutting | |
|
| |
|
| control board. |
|
| |
Bad cutting (uneven top and | • Switch OFF printer and remove any obstructing | |
bottom document edges). |
| paper particles in cutter and presenter modules. |
|
|
|
Inconsistent cutter operation | • | Check |
|
|
|
Paper is fed straight through the | • | Check presenter sensor. |
printer. Paper does not loop. | • Check setting of parameter p9. | |
|
| |
Missing print or irregular spots. | • Paper may be too humid. Let it adapt to ambient | |
|
| temperature and humidity for approximately 24 |
|
| hours before use. |
| • The paper used might not meet the paper | |
|
| specification. See Paper Specification on page 112. |
|
| |
White longitudinal lines in the | • Faulty print head, replace print module. | |
printout. |
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| TTP 7030™ Technical Manual | 10/05/2009 |