Hioki 8841 - Page 440

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20.1 Main tenance and Inspection
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Moisten this side with cleaning alcohol
NOTE
■ Printer Head Cleaning
In normal use, the printer does not require periodic maintenance. However,
depending on usage conditions, the thermal head may become contaminated
by dust or paper scraps. If the print seems light or if there are dropped
sections, clean the head as described below.
Procedure1
1. Press the
SYSTEM
key to display the SELF CHECK screen.
2. Move the flashing cursor to the
PRINTER CHECK
item.
3. Press the
cleaning
function key for about 5 seconds. During this interval, the
printer prints 100% black section.
4. If this method does not alleviate the problem, perform the steps of cleaning
method 2 as described below.
Procedure2
1. Moisten printer paper on the rear with alcohol and set the paper in the
printer. (If the front side of the paper is moistened, discoloring will occur.)
2. Lower the head up/down lever and move the printer paper back and forth to
clean the head.
･ Do not use organic solvents such as thinners.
･ After extended use, paper residue (visible as a white powder-like substance)
may accumulate on the roller. While a small amount of residue has no
adverse effect, the roller can be cleaned using a air-blow brush (such as sold
as a camera accessory).
･ Always use the paper cutter integrated in the printer cover to cut printer
paper. If the paper is cut near the thermal head, a large amount of paper
residue may accumulate on the roller.