Adjustment and Troubleshooting
Fault | Signs | Cause & Check | Solution |
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Ghost & Image | • The printed image | 1. The printed image is too light | 1. All of Items 1, 2, 3 |
Contamination | is too light or dark, | or dark, or partially | (a) Clean the contacts on the |
| or partially | contaminated black. | toner cartridge. |
| contaminated black. | (a) Check if foreign substance | (b) Clean the contact points on |
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| or toner are stuck to the | the set. |
| • Totally | terminals (point of contact) | (c) If the terminal assembly is |
| contaminated black. | of the toner cartridge or set. | damaged repair or replace |
| (Black image | (b) Check if the terminal | the terminals in the set or |
| printed out) | assembly is normal. | replace the cartridge |
| • The density of | 2. Totally contaminated black. | 2. In Item 2 |
| printouts is too dark | (Black image printed out) | This is particularly related to |
| and ghost occurs. | (a) Check if foreign | problems with the charge roller |
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| substances are stuck to | contact. Pay close attention to |
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| the terminal (point of | the charge roller contacts. |
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| contact) of the toner |
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| cartridge or set. | 3. In Item 3 |
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| (b) Check if the terminal | This is particularly related to |
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| assembly is normal. | problems with the developer |
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| (Especially check the | bias voltage contact. Pay close |
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| charge roller terminal.) | attention to the charge roller |
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| contacts. |
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| 3. The printed image is dark and |
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| ghost occurs. |
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| (a) Check if foreign |
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| substances are stuck to |
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| the terminal (point of |
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| contact) of the toner |
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| cartridge or set. |
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| (b) Check if the terminal |
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| assembly is normal. |
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| (Especially check the |
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| developer roller terminal.) |
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Service Manual