Oki PH640 User Manual page 23

4-2-2. Using 57.5 or 75.5 mm Wide Paper Roll
When using a paper roll 57.5 or 75.5 mm wide, install the supplied paper guide on the
printer.
To change the effective print width (roll paper width), change the setting using the
memory switch configuration Utility.
For details on setting the memory switches, refer to the software manual on the CD-ROM.
(1) Install the roll paper guide in the unit as illustrated below.
To use a 75.5 mm width paper roll, align the roll paper guide in hole [1], and to use a 57.5
mm wide paper roll, align it in hole [2].
(2) Install the roll paper guide in the unit by aligning it with the holes and grooves as illustrated
below.
Important:
After using a 57.5 mm paper roll, do not change to a 79.5 or 75.5 paper roll.
This is because the printer head has deteriorated as a resutl of a portion of
the head having been in direct contact with the platen.
After using a 75.5 mm paper roll, do not chane to a 79.5 mm paper roll
for the same reason.
[ 1 ]
[ 2 ]
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Paper guide