Oki ML620 User Manual

ML620/ML621 User’s Guide 86
PROBLEM CAUSE SOLUTION
Improper continuous forms feed
No line feed, and no paper
feed.
Paper is off the Pin Tractors. Reload paper correctly.
The adjust lever position does not match
the paper type.
Set the adjust lever to the correct position.
Paper distortion or jam. Forms are loaded with their left holes out of
line with the right ones.
Load forms with their left holes in line with
the right ones.
Inadequate distance between the left and
right Pin Tractors, making for loose paper.
Relocate the Pin Tractors to tighten the paper.
Skewed paper feeding. Move the paper to make it straight.
Paper movement is blocked. Remove the blockage.
Paper source is too far from the printer. Move the paper source nearer to the printer.
Paper not specied for the printer. Use paper types specied for this printer.
Several blank lines appear in
the print-out
Skip-over perforation spacing is set. Cancel the skip-over perforation spacing.
The selected skip-over
perforation spacing does not
match the physical tear-off
perforation positions.
The paper length selected in the application
does not match the physical paper length.
Match the paper length selected in the
application with the physical paper length in
use.
Select the paper length in number of lines in
the application.
Abnormal switch-over between cut sheet and continuous forms modes
No cut sheet feed. The printer is in continuous forms mode. Set the Paper Type lever to cut sheet mode.
No continuous forms feed. The printer is in cut sheet mode. Set the Paper Type lever to continuous forms
mode.

Oki ML620 Specifications

General

Color	-
Maximum resolution	288 x 72 DPI
Mean time between failures (MTBF)	25000 h
Sound pressure level (printing)	55 dB
Sound pressure level (quiet mode)	52 dB
Standard interfaces	USB 2.0
Windows operating systems supported	Windows 2000, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
AC input voltage	120 V
Dimensions (WxDxH)	438 x 375 x 191 mm