SHARP SP2134 Technical Report

Date: May. 30, 1997

COPIER : SF-2020

No. : SP-2134

1.MEASURE TO ALLEVIATE PROBLEMS OF ELECTRICAL NOISE.

2.CHANGE IN THE SIMULATION LIST.

1. Measure to alleviate problems of electrical noise.

1.Model Name: SF-2020/1020/2120/1 120

2.General: As a measure to reduce electrical noise, the MM interface harness used in the

machines bound for the 200 V series market destinations (the U.K., Germany, Europe)
is now being used for all market destinations.

3.Action: From 1997 April production.

2. Change in the simulation list.

1.Model Name: SF-2020/1020/2120/1 120

2.General: Changes and additions in a portion of the simulation list and trouble list has been

carried out in the models listed above. Please refer to the supplementary page for
details concerning these changes and additions.

SHARP CORPORATION Reprography Division

1/5

Green

C

Main code Sub code Content

50 02 Leading edge image position adjustment (measurement value substitution).

Just as with simulation 50-1, the settings for the leading edge image position and leading void position are carried out.
The settings for the leading edge image position are carried out by this simulation through the direct input of the measured
leading edge misalignment L1 and L2.

51 02

No. of copies display section

Decimal place no. 3 Decimal place 2 and decimal place 1

A
bL2
C Leading edge void adjustment
d Rear edge void adjustment

(Example)
For a case whereby L1 = 24.5 mm, [2], [4], and [5] are input. After input has been carried out, the display of the no. of
copies display section will be A45.
Points of caution to be observed when the input of L1 and L2 is carried out.

•The effective no. of decimal places for L1 and L2 is 3.
(the display, however, is only the lower 2 decimal places, and the top decimal place (decimal place 3) is pushed
out and now displayed.)

•L1 and L2 should be input to the first decimal point (when the first decimal point is “0,” the last input should be “0.”

•When the input of numerical value of L1 and L2 is carried out, and more than 4 decimal places are input, the newest 3

decimal places are considered to be in effect.
On the other hand if only 2 decimal places are input, the lowest decimal place (decimal place 1) from the last input
becomes the top decimal place (decimal place 3).

(Example)
When the last input value was 245, and the next input is 24, the value which is stored in memory is 524.

•After L1 and L2 has been input, calculations and renewal (memory) of the register adjustment A and B of simulation 50-1

are carried out only after the print button is set to ON. Register adjustment A and B values are not renewed when the
magnification display, or the CA keys are ON.

Register volume adjustment.
The settings for the copy paper sagging volume in the register section are carried out. Warm-up for the simulation run is
started, and the current set tray register volume is displayed in the no. of copies display.
The READY lamp is illuminated once the warm-up is finished, and copy operations are commenced when the print button
is ON.
There are several items to be displayed, and therefore data classification is carried out by the 3rd decimal place of the no.
of copies display, and the data is displayed by the lower decimal places.
Display changes are carried out by the magnification display key.

1~99

Display data

L1

2/5

No. of copies display section

Decimal place no. 3 Decimal place 2 and decimal place 1

A
b Manual register volume
C ADU paper feeding register volume

* Details concerning adjustments are as described below. Adjustments are carried out for the amount of time (register
volume) between when the paper transport sensor (PPD) is set to ON to when the paper feeding operations are set to
OFF during paper feeding operations. Adjustment range is from 1 to 99.
The register volume is calculated as (set value) x 1 msec + 70 msec.
Settings:

A-manual (initial value: 50)
B-Cassette
C-ADU register volume

HOUND A (B-Cassette initial setting: 40)
In accordance with software internal processing for WLT, A3, LG, B4, full skap, LTR, and A4R, +15 is added to the
simulation setting.
(Example)
When the simulation setting is 40, +15 is added in accordance with the software internal processing, and the actual value
becomes 55.
HOUND B (B-Cassette initial setting: 40)
In accordance with software internal processing for WLT, A3, LG, and B4, +20 is added to the simulation setting.
(Example)
When the simulation setting is 40, +20 is added in accordance with the software internal processing, and the actual value
becomes 60.
ADU (C-ADU register volume initial setting: 45)

1~99

Tray register volume

Display data

← Initial setting:40
← Initial setting:50
← Initial setting:45

(Hound B only)