Minolta Di450 Service Manual page 253

Touch Panel
Display
Memory Check Writes data in the image memory and reads it out to check for exact
correspondence.
The Touch Panel shows the percentage of processing completed of
each diagnostic sequence and the number of diagnostic sequences
carried out. If a fault is encountered, it gives the message of "NG"
together with the address at which the fault occurred.
<Procedure>
1. Press the Start key to start the diagnostic sequence.
2. Press the Stop key to stop the diagnostic sequence.
Comp./Expansion Comp.: Checks to determine if the image data has been properly
compressed in memory.
Expansion: Checks to determine if the compressed image data is
properly expanded in memory.
The Touch Panel shows the percentage of processing completed of
the diagnostic sequence. If the sequence has been completed okay, it
gives the message of "OK"; if a fault was encountered, it gives the
message of "NG" together with the corresponding malfunction code.
<Procedure>
• Press the Start key to start the diagnostic sequence.
Prn. I.R. → Memory: Checks for correct image signal transfer between I.R.
I.R. Men.
and memory.
The Touch Panel shows the percentage of processing completed of
the diagnostic sequence. If the sequence has been completed okay, it
gives the message of "OK"; if a fault was encountered, it gives the
message of "NG" together with the corresponding malfunction code.
<Procedure>
1. Touch "IR → Memory".
2. Press the Start key to start the diagnostic sequence.
Memory → Printer: Checks for correct image signal transfer between
memory and printer.
The Touch Panel shows the percentage of processing completed of
the diagnostic sequence. If the sequence has been completed okay, it
gives the message of "OK"; if a fault was encountered, it gives the
message of "NG" together with the corresponding malfunction code.
During the sequence, the copier also produces a test copy which can
be checked for correct image.
<Procedure>
1. Touch either "Memory → Prn1" or "Memory → Prn".
2. Load the Multi Bypass Table with A4 lengthwise paper.
3. Press the Start key to start the diagnostic sequence.
Operation
S-22