Field Service Ver. 2.0 Jul - Olivetti d-Color MF651 Service Manual

Field Service Ver. 2.0 Jul. 2009

22.2 How to identify problematic part
• This chapter is divided into two parts: "Initial check items" and "Troubleshooting proce-
dure by a particular image quality problem."
• When an image quality problem occurs, first go through the "Initial check items" and, if
the cause is yet to be identified, go to "Troubleshooting procedure by a particular image
quality problem."
22.2.1 Initial check items
A. Initial check items 1
• Check first to see if image data is properly transmitted between scanner and memory,
and between memory and printer.
Enter the Service Mode, select [State Confirmation]
HDD Adj.] [Memory Bus Check], and select and carry out
[Scanner Memory] and [Memory PRT] checks.
NOTE
• For the bus check as the internal process between the
scanner and the memory, there are two types, "scanner
internal check" and "check for the scanner and the mem-
ory." NG1 or NG2 is displayed depending on the type of
NG detected.
Y110571-1
Action
Service Manual
22. IMAGE QUALITY PROBLEM
Result
[Memory/ OK Initial check items 2
NG P.820
(action as instructed)
Next Step
859