Adjustment Items - Epson SC-F2000 Service Manual

SC-F2000

4.1.3 Adjustment Items

The following table describes the general outline of the adjustments.
NOTE: PGPP: Premium Glossy Photo Paper (250)
Adjustment Items
Apply a specified tension to the CR timing belt.
Measure the tension of the belt using the sonic
CR Belt Tension Check
tensimeter to check if it is within standards. If not,
adjust the tension.
Check the CR Scale for any abnormality such as
CR Scale Check damage or dirt and check if the scale can be
properly read by the encoder.
Reduce misalignment of ink droplets fired to paper
Manual Uni-d Adjustment
during unidirectional printing.
Reduce misalignment of ink droplets fired to paper
Manual Bi-D Adjustment
during bidirectional printing.
Adjust the print start position on the top, the right
and left ends, and the bottom of the media. Print the
adjustment pattern using the Service Program. By
1st Dot Adjustment
measuring the adjustment pattern and entering the
result, the print start position is automatically
adjusted.
ADJUSTMENT
[Blue]: Button or menu name on the program screen / [Black]: Button or menu name on the operation panel of the printer
Table 4-2. Adjustment Items
Overview
When the belt tension is out of standards, the following
symptoms may occur.

Belt tension is high:
The life of the belt will be shortened. High load applied
to the carriage causes frequent wait control over the
carriage movements to prevent overheating. If the tension
is too high, the shaft of the motor leans and the brush in
the motor becomes worn, and will result in CR overload
error.

Belt tension is low:
Slipping of the teeth of timing belt occurs and banding
vertical banding occurs near both the right and left ends.
When the CR Scale is not read properly, the carriage will not
operate normally.
If this adjustment is not made, print quality problems such as
misaligned lines, grainy image, banding may occur.
If this adjustment is not made, print quality problems such as
misaligned lines, grainy image, banding may occur.
If the adjustment is not executed, the width of the media is
not correctly detected. As a result, the print position may be
misaligned, or the margins may be too narrow or too wide,
or the image may be cut off.
Symptoms that the Adjustment is Needed
Overview
Revision C
Service
Printer Mode Jig Media
Program
Normal Tensimeter
√
mode U-507
Normal
√
mode
Normal
√
PGPP
mode
Normal
√
PGPP
mode
Normal
√
mode
Confidential
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