Mechanical Operation; Motor; Timing Of Mechanical Operation - Sony UP-D70XR Service Manual

3-1. Motor

motor name
1. Capstan drive motor
(stepping motor)
2. Head drive motor
(DC motor)
3. Ribbon take-up motor
(DC motor)
4. Ribbon supply motor
(DC motor)
5. Paper feed motor
(DC motor)
6. Paper feed lever motor
(DC motor)

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
Operation Home position
Head UP
Capstan OFF
Paper delivery roller ON
UP-D70XR
Section 3

Mechanical Operation

main function
. Drive of capstan roller
. Drive of paper delivery roller
. UP/DOWN of head
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
. Drive of ribbon rewind reel (take-up)
. Drive of ribbon rewind reel (Supply)
. Drive of paper feed roller
. Drive of pick-up roller
. Drive of bar code detection gear
. Drive of paper feed lever
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
1
Beginning detection of ribbon
and paper feed
MIDDLE
OFF
ON
2 3
Paper forward rewind, Printing
delivery paper
MIDDLE DOWN
ON ON
OFF OFF
3-1