Sony UP-D70XR, Руководство по обслуживанию

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3-1
UP-D70XR
3-1. Motor
motor name main function
1. Capstan drive motor . Drive of capstan roller
(stepping motor) . Drive of paper delivery roller
2. Head drive motor . UP/DOWN of head
(DC motor) 1) Home position
2) Ribbon forward & paper forward position
3) Printing position
.
Drive of pinch roller
1) Pressure
2) Release
.
Drive of paper delivery pinch roller
1) Pressure
2) Release
3. Ribbon take-up motor . Drive of ribbon rewind reel (take-up)
(DC motor)
4. Ribbon supply motor . Drive of ribbon rewind reel (Supply)
(DC motor)
5. Paper feed motor . Drive of paper feed roller
(DC motor) . Drive of pick-up roller
. Drive of bar code detection gear
6. Paper feed lever motor
.
Drive of paper feed lever
(DC motor) 1) Home position
2) Printing position
3) Paper feed position
.
Control of bar code detection
1) Bar code detection possible
2) Bar code detection impossible
.
Drive of separation roller
1) Pressure
2) Release
3-2. Timing of Mechanical Operation
Mechanical operation separates thermal head UP/DOWN operation for four positions. The following
three operations are performed one motor (Head drive motor) by assembling cam composition and link
composition. Paper feed lever operation and control of bar code detection gear are performed by another
motor (Paper feed lever motor).
Following is the timing table.
Head drive motor
Position 0 1 2 3
Operation Home position Beginning detection of ribbon Paper forward rewind, Printing
and paper feed delivery paper
Head UP MIDDLE MIDDLE DOWN
Capstan OFF OFF ON ON
Paper delivery roller ON ON OFF OFF
Section 3
Mechanical Operation