Specifications

Figure 7–4: Vertical Timing Pattern Sample Printouts
RE7584
C. Key 6: Vertical timing pattern No. 3. If a few of the rows of three dots at one or other side of the
column are sloped (the five dots in the center column may also become erratic) as shown below,
the vertical timing is too late. in this case, adjust R27 clockwise until pattern No. 2 is obtained
then adjust R27 counterclockwise until normal pattern No. 1 is obtained.
Note: In rare cases, printer lock up may result from over adjusting R27. This may be cleared by
powering the printer down & up again.
A. Key 6: Vertical timing pattern No. 1. Normal, no adjustment required.
B. Key 6: Vertical timing pattern No. 2. If the five dots at the center of the columns form a shape
as in pattern No. 2, the vertical timing is too early. Adjust R27 on SMIH board counterclockwise
until a normal pattern is obtained.
PRINT QUALITY ADJUSTMENT PROCEDURES 7–11