Drum
SM 4-39 C274
Replacement
and
Adjustment
4.9.7 INK DETECTION ADJUSTMENT
Purpose: To ensure that the CPU detects a no ink condition.
Before attempting this procedure, wipe off the ink around the ink roller. To do this,
set SP3-6 (Ink Detection) to OFF, and feed paper until ink ends. The setting value
returns to default value if the power is switched off/on.
Standard: 4.0 ± 0.2μs
Rear cover ( Covers / Boards – Rear Cover)
1. Access SP6-40.
2. Turn VR101 [A] on the MPU board until the display is “4.0 ± 0.2μ” (4.0 ± 0.2μs).
When the drum has ink inside, the machine displays “----“.
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