IBM 4247-V03, Maintenance Information

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or -
v
During T&D08: With the
AFTA=0
or the
FIXED=1
mode, you begin the AFTA Calibration portion of T&D08, but
get the message
TD12 FRU 3 [14] PRESS A KEY
.
To determine if the cause of the
055 AFTA ERROR
message is a bad #5B printhead needle, follow these steps:
1. Power off the printer, and remove all paper from the printer.
2. Power on the printer and enter the operator menu to change to FIXED=1 mode.
3. Load 1-part paper and print some characters.
4. Examine the DP characters, such as an uppercase H, looking for missing dots. Count down 5 dots from the
top of the character.
5. Inspect the printhead cable for damage and a poor connection at the printhead. Replace the cable, if
indicated.
6. If the cable is OK, replace the printhead.
Running T&D08:
v
Press the Micro
↑
key to run the test.
v
Press the Micro
↓
key to skip the test.
v
Press the Load/Form key to end the test.
If T&D07 (Sensor Tuning) was not completed before beginning T&D08 (AFTA Calibrate Test) , the following
message displays:
1. Ensure the paper bail and a ribbon cartridge are installed.
2. Install 20 lb (80 g/m
²
) paper into the rear tractor.
3. Press the Load/Form key to select FF.
4. The printer will now load the paper and perform the AFTA operation.
The following 2 messages display sequentially:
+ AFTA X -
YES <- STORE -> NO
Chapter 2. Diagnostics
109