Epson AcuLaser C2600 Service Manual page 134

EPSON AcuLaser C2600/2600
2.5.5 Control of Consumables and Components Needing Periodic Replacement
The method to detect the life of consumables and components needing periodic replacement and how to detect that they are replaced are given in the following table.
Unit Name Detection of New Unit
Photoconductor The printer determines that the unit is
unit new when the fuse for detecting new
part of the unit is conducting energized.
Toner cartridge The printer judges the cartridge as new
by detecting the new flag in the CSIC.
Fuser unit The printer determines that the unit is
new when the fuse for detecting new
part of the unit is energized.
Operating Principle
Table 2-11. List of Life Control
The lifetime of the unit is controlled by counting the following items. The unit is detected or warned that it has reached the end of
life when any one of them reaches/satisfies a prescribed value/condition.
• The number of Vsync detection
→ the number of rotations of photoconductor
• The number of printed pages
• Detecting a full state of the Photoconductor waste toner box
When the waste toner collection space in the photoconductor unit is detected as full by the waste tower full state detection
sensor, the status becomes "Near-End". Once the status turns to "Near-End", the printer starts to count the number of printed
dots to inform "End" status when the amount of dots exceed a given level.
02006501
The lifetime of the unit is controlled by counting the following items. The unit is detected or warned that it has reached the end of
life when any one of them reaches/satisfies a prescribed value/condition.
• The number of printed dot
• Operating time of the developer drive motor
→ operating rotating time of the developer roller
The lifetime of the unit is controlled by counting the following items. A warning message will appear when any one of them
reaches/satisfies a prescribed value/condition.
• The time taken for the paper to pass through the gate roller
→ the time taken for the paper to pass through the fixing roller
• Operating time of the main drive motor
→ operating time of the fixing roller
• Heat roller central area high-temperature time (detected by the thermistor located at the center of the roller)
Monitors the temperature of the roller and counts the time in which the temperature reaches or exceeds the predetermined
level since the continuance high temperature may damage the rubber part of the heat roller.
• Heat roller end area high-temperature time (detected by the HR thermistors located at the one end of the roller)
02006601 Monitors the temperature of the roller and counts the time in which the temperature reaches or exceeds the predetermined
level since the continuance of high temperature may damage the rubber part of the heat roller.
• Pressure roller high-temperature time (detected by the PR thermistor)
Monitors the temperature of the roller and counts the time in which the temperature reaches or exceeds the predetermined
level since the continuance of high temperature may damage the rubber part of the heat pressure roller.
• The number of cool-down cycles when printing on narrow paper
The left and right margins of the heat roller become hotter than its central portion when printing on a narrow paper because the
margins does not contact with the paper. To prevent this, the printer runs the cool-down cycle and the number of the cycles is
counted.
Control
Factors for Judging the Lifetime
Revision B
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