IBM 4247 Maintenance Information page 187

3. The following displays:
4. Press the Micro
Press the Load/Form Feed key to skip to step 5.
The current path status displays:
where:
v C: is status of the Cutsheet sensor
v F: is status of the Front fanfold sensor
v R: is status of the Rear fanfold sensor
v x will be B or F to indicate PATH BLOCKED or PATH FREE
v P:yy will be P:OP or P:CL to indicate the position of lower rollers: OPEN or CLOSED
The display is continuously updated to indicate sensor status changes. Inserting paper into a path will
change the display from :F (free) to :B (blocked).
Press the Micro
5. The following displays:
This part of the test is intended for use by Product Engineering, and allows the user to examine internal
sensor threshold values stored in NVRAM.
6. Press the Load/Form Feed key to skip to step 7 on page 188.
Press the Micro
key to display sensor status.
key to go to step 5.
key to enter.
Y PATH STATUS N
C:x F:x R:x P:yy
Y THRESHOLD N
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Chapter 2. Diagnostics