2Dark background (Figure 6.2- B )
•Was each ID exposed to external light for a long time?
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| Yes | Replace the ID unit. | Note: Reset the counter after replacement. |
▼ | No |
| Are the rollers in the fuser unit contaminated? | |
• |
| |||
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| Yes | Replace the fuser unit. |
|
▼ | No |
| Adjust the setting of “MEDIA TYPE”. |
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• |
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| ||
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| Light: 60 g/sq.m. Med. light: 64~74 g/sq.m. Medium: 75~90 g/sq.m. | |
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| Med. heavy: 91~104 g/sq.m. Heavy: 105~122 g/sq.m. Ultra heavy: 123~175 g/sq.m. | |
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| No | Set the “MEDIA TYPE” properly. |
|
▼ | No |
| Is each LED head assy connected to the junction board(Y71 PWB) correctly? | |
• |
| |||
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| No | Connect each LED head assy to the junction board(Y71 PWB) appropriately. | |
▼ | Yes | Is +3.8V supplied to the following POWER connector pins on the junction board (Y71 PWB)? | ||
• | ||||
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| +3.8 V: Pins 1, 2, 3, 4, 5, 6, 7 and 8 |
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| • | Yes | Is +3.8V supplied to the following cable connector pins between the junction board (Y71 | |
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| PWB) and each LED head assy? |
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| YPOW connector Pin 3: LED head assy yellow | |
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| MPOW connector Pin 3: LED head assy magenta | |
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| CPOW connector Pin 3: LED head assy cyan | |
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| BPOW connector Pin 3: LED head assy black | |
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| No Replace the junction board(Y71 PWB). | |
| ▼ | Yes | Check the cable connection, or replace the LED head assy. | |
| • | |||
▼ | No |
| Check the cable connection, or replace the | |
• |
| |||
|
| Yes | End |
|
▼ | No |
| Is +32V supplied to the POWER connector pins on the engine board (K73 PWB)? | |
• |
| |||
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| +32V: Pins 7, 8, 9 and 10 |
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|
| No | Check the cable connection, or replace the | |
▼ | Yes | Is +32V supplied to the POWER connector pins of the engine board (K73 PWB)? | ||
• | ||||
|
| No | Replace the engine board. |
|
▼ | Yes | Check the cable connection, or replace the | ||
• | ||||
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| assy. Recovered? |
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|
| Yes | End |
|
▼ | No |
| Is each ID terminal connected to the contact assembly correctly? (See Figure 6.3.) | |
• |
| |||
|
| No | Connect the ID terminals with the contact assembly correctly. | |
▼ | Yes | Replace the ID unit. |
| |
• |
| |||
| Notes: | When replacing the engine board (K73 PWB), demount the EEPROM chip from the old | ||
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| engine board and remount it on the new one. | |
41388601TH Rev.2 | 119 / |
