CBM1000 Service Manual
l Paper feed failure
Phenomenon | Cause |
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| Check Method |
| Remedy |
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Paper is not fed or | Faulty connection of the | Check connection of the | Connect the | connector | |||||||||
fed irregularly | motor connector |
| motor connector. |
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| correctly. |
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| Defective motor |
| Measure the | supply | If the supply voltage is | ||||||||
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| voltage with a DC volt- | normal, replace the mo- | |||||||||
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| meter or oscilloscope. | tor. |
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| Faulty DC output volt- | Check | whether | the | Use the | specified | AC | ||||||
| age from the | AC | specified AC adapter is | adapter. |
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| adapter |
| used. |
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| Low DC output voltage | Check | the | DC | voltage | Supply the specified AC | |||||||
| from the AC adapter |
| with a DC voltmeter. | voltage | to | the | AC | ||||||
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| adapter. |
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| Faulty control PCB assy |
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| Replace the control PCB | ||||
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| assy. |
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| Faulty mounting of the | Check mounting condi- | Mount the platen roller | ||||||||||
| platen roller |
| tion of the platen roller. | properly. |
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| Paper feed failure |
| Check | whether | or | not | Eliminate | unnecessary | |||||
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| the paper is jamming or | paper in the paper path | |||||||||
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| torn and caught in the | and set paper properly. | |||||||||
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| paper path. |
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| Foreign substance | in | Remove the gear holder | Eliminate | the foreign | ||||||||
| the gear |
| and check for any for- | substance. |
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| eign substance | caught |
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| in the gears. |
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| Broken gear |
| Remove the gear holder | If the gear is broken, | |||||||||
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| and | check | for | any | replace it with new one. | ||||||
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| breakage of the gears. |
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– 21 – | CITIZEN |
