Toshiba A20-S259 - Satellite - Pentium 4 2.66 GHz Maintenance Manual page 138

3 Tests and Diagnostics
Subtest 02 Function
This subtest is for IBM compatible printers, and tests the following functions:
This subtest prints the various print types shown below:
Subtest 03 Wrap around
NOTE: To execute this subtest, a printer wraparound connector must be
connected to the printer port in the Port Replicator. The printer
wraparound connector (34M741986G01) wiring diagram is described in
Appendix F.
This subtest checks the output and bi-directional modes of the data control and
status lines through the parallel port wraparound connector.
3-26
Normal print
Double-width print
Compressed print
Emphasized print
Double-strike print
All characters print
Satellite A20 Maintenance Manual (960-444)
3.9 Printer Test