Initial Check; Introduction - Brother MP-21C Service Manual

CHAPTER IV TROUBLE SHOOTING
1.

INTRODUCTION

1.1

Initial Check

If a malfunction or incorrect print appears, make an initial check, then follow the basic
procedure below:
(1) Operating environment
Check if:
1) The source voltage stays within ±10% from the rating voltage shown on the
rating plate.
2) The printer is installed on a solid, level surface.
3) The room temperature is maintained between 10 ο C and 35 ο C (50 ο F and
95 ο F). The relative humidity is maintained between 20% and 80%.
4) The printer is not exposed to ammonia fumes or other harmful gases.
5) The printer is not located in a hot or humid area (such as near water or a
humidifier).
6) The printer is not exposed to direct sunlight.
7) The room is well-ventilated.
(2) Paper
Check if:
1) A recommended type of print paper is used. (If the paper is too thin, or
tends to curl, paper jams or paper feed problems may occur, or prints may be
blurred.)
2) The print paper is damp.
[If so, use fresh paper and check whether the print quality improves or not.]
(3) Ink cartridge
Check if:
1) Both of the ink cartridges are loaded correctly.
2) If there is ink remaining, the LED which indicates ink empty is not on.
(If the LED is on, install the indicated color ink.)
IV-1