Ricoh B079, Руководство по обслуживанию

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TECHNICAL SERVICE BULLETIN
Copyright
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2003 RICOH Corporation. All rights reserved. Page 1 of 1
BULLETIN NUMBER: B079/B082 – 004 07/07/2003
APPLICABLE MODEL:
GESTETNER – 3532/4532
LANIER - LD035/LD045
RICOH – Aficio 2035/2045
SAVIN – 4035/4045
SUBJECT: OFFSET WITH 128MM PITCH
SYMPTOM:
Ghost images appear in solid image and highlight areas at a pitch of approximately 128mm (circumference
of the fusing roller).
CAUSE:
A relatively large amount of toner is applied to the development roller and then transferred onto the paper,
which cannot be completely fused to the paper surface. The extra toner then attaches to the fusing roller and
is transferred onto the copy when the roller rotates around again, causing the ghost image.
SOLUTION:
1. Increase SP2201-2 (Development Bias Adjustment – ID Sensor Pattern)
by 50V , and then change
SP2210 (ID Sensor Pattern Interval) to a value of 1 .
2. Print out about 5 pages of an image containing a high Black coverage ratio, such as a photograph.
3. Check the value of SP3103-2 (Vsp) and make sure it is between 0.2–0.3V. If it is not, repeat Step 2 until
it falls within this range.
4. Check to see if the symptom still occurs, and if it does, repeat Steps 1–3 until copy quality returns to
normal.
Important:
1. After completing the above procedure, return SP2210 (ID Sensor Pattern Interval) to its default of 10.
2. The image density can decrease if the development bias (SP2201-2) is raised too high, so be sure to
raise it gradually as described in Step 1 above, i.e. only by 50V.
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COPY
QUAL
IT
Y