Ricoh MPC 1800 Quick Manual page 9

2 Troubleshooting
Adjusting the Print Heads
Printing the Test Pattern for Adjusting the Print Head Position
This machine uses the inkjet printing system. Because the ink is sensitive to environmental conditions, varia-
tions in temperature or humidity for example can result in blurring or broken vertical lines. Clean the print
heads if blurring occurs or vertical lines appear broken on prints.
⋅ Make sure the envelope lever is raised. If it is not, you will be unable to print. For details about the
envelope lever position, see p. 22, "Names and Locations".
⋅ Make sure that both the one-sheet bypass tray and the one-sheet output tray are closed. The machine
cannot print if any tray is left open.
⋅ Check that A4L or 8
⋅ Do not attempt any other operations while the test pattern is printing out.
Press the {User Tools/Counter} key.
Select [Maintenance] using { U } or
{ T } , and then press the {OK} key.
Select [Adjustment] using { U } or { T },
and then press the {OK} key.
Select [Head Position Adjust] using
{ U } or { T } , and then press the {OK}
key.
Select the type of print head position
adjustment you require using { U } or
{ T } , and then press the {OK} key.
The type of print head position adjustment you should select depends on the write mode for the
print heads you want to adjust. Select [2.Printer High Speed] to adjust the print heads for printing
on plain paper in fast mode (300 dpi). Otherwise, select [1.Standard].
Press the {Start} key.
The test pattern for print head position adjustment is
printed. Check the test pattern. For details about check-
ing the test pattern, see p. 10, "Checking the Test Pat-
tern to Adjust the Print Head Position".
1
/ x 11L size paper is loaded in Tray 1. If it is not, the test pattern cannot be printed.
2
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