Ricoh A172 - SUBJECT: A172;A199 SERVICE TIPS; The Service Tips are divided into the following sections:

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SUBJECT: A172/A199 SERVICE TIPS
SCOPE:
In our continuing effort to assist field technicians in resolving service-related issues, TSC is providing the
attached A172/A199 Service Tips.
This information will assist you to quickly isolate possible causes of copy quality related service calls and as
a result decrease unnecessary parts replacement.
The data / measurements provided are not factory Specifications, but reflect the average voltage measured
on several test units.
The Service Tips are divided into the following sections:
• Checking Drum Ground
• Confirming Charge Current
• Confirming Charge Grid Voltage
• Charge Grid PWM Check Procedure
• Development Check Points
• Confirming Development Bias Voltage
• Transfer Belt Area
• Confirming Transfer Belt Bias Voltage
• Confirming Transfer Roller Bias Voltage
• Paper Feed Check Points
• Fusing Unit Check Points
Continued…
Note:
This copy is intended as a master original
for reproduction of additional bulletins.
„
ELECTRICAL
„
MECHANICAL
„
COPY QUALITY
CONTROL NO. 308