夏普753维护代码vk消除
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显影计数到,为了保证打印质量更换显影组件
Maintenance Code VK
VK = 100,000 pages printed on the developer counter or 715,000 revolutions of the developer unit (as mixing can occur even when pages are not being printed). Developer can break down over time and or the seals can be damaged - so service by a technician is indicated. If maintenance was recently performed and the developer replaced then the counter needs to be reset.夏普753维护代码vk消除
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