Initialize Sensitivity; Vertical Alignment - Epson PowerLite 4100 Operator's Manual

88 Configuration
character set settings and options are printed out when you select "Status
Print?" (Page 56) or "Print All Options?" (Page 58).

Initialize Sensitivity

Pressing YES prints out the active setting:
Low (factory default)
High
The initialize sensitivity setting applies only to the INIT* signal (Pin 31) on
the parallel interface.
Low: Low sensitivity means that the printer requires an active-low INIT*
pulse of at least 100 ms in order to reset the printer to its power-up default
settings.
In most situations, prefer low sensitivity, especially when using overly long
parallel interface cables (over 10 ft) or when dealing with an electronically
noisy computer-printer connection.
High: High sensitivity means that the printer requires an active-low INIT*
pulse of at least 1.66 µs in order to reset the printer to its power-up default
settings.
Use high sensitivity when the INIT* pulse is short, such as with an IBM
3197 terminal.

Vertical Alignment

Pressing YES allows you to adjust the printer's right-versus-left-pass
timing for firing printhead pins. See "Vertical Image Alignment" (Page
110) for the procedure.