Epson SC-F9200 series, Service Manual

Page: 278 / 412

SC-F9200 Series Revision C
ADJUSTMENT Overview 278
SE Group Confidential (Related Staff Only)
Media
Feed
related
Manual Adjustment for
Media Feeding Adjusts the amount of media feeding which
usually varies between the printers. If paper feeding accuracy lowers, print quality
problems such as banding may occur. Normal
mode
√
PGPP p.341
PF Scale Check
Check the PF Scale for any abnormality such as
damage or dirt and check if the scale can be
properly read by the encoder. When the PF Scale is not read properly, paper
feeding may become impossible and an error may
occur.
Normal
mode
√
p.340
PF Motor Measurement
& Automatic Adjustment
The PF Motor is designed to stop when the
amount of heat generation (motor temperature)
during motor operation reaches a predetermined
limit. The amount of heat generation is estimated
based on the electrical characteristics of the
motor, which vary by motor and power supply of
the printer. Therefore, to get the motor control to
work properly, the electrical characteristics
values of the motor need to be measured and
stored in the memory on the Main Board.
If this adjustment is not made, the estimation of
the motor temperature cannot be made properly
and may cause the following symptoms.

Even though there is no problem with the
motor temperature, the printer pauses during
printing because it judges that the motor is in
high-temperature state.

Despite the motor is in a high-temperature
state, a lower motor temperature is estimated
and the printer does not stop. This may cause
the printer to malfunction.
Normal
mode
√
p.356
Rear AD Adjustment
Adjust the detection sensitivity of the PE Sensor
so that it can recognize the paper inserted in the
printer correctly. Let the sensor detect the
Standard Sheet (translucent media) which is hard
to recognize to check the result on the Control
Panel. (By using the media which is hard to
recognize, paper can be recognized regardless of
the environmental condition or the media)
If the adjustment is not executed, paper
recognition failures may occur (e.g. paper empty
error occurs even with paper inserted, some
media are not recognized).
Serviceman
mode
√
Standard
Sheet
p.358
Table 4-2. Adjustment Items
Class Adjustment Items Overview Symptoms that the Adjustment is Needed Printer Mode
Service
Program
Jig Media Page