Overview; Cam Drive - Sanyo DVP-P1EX Technical Information

2-2.

Overview

The mechanism is run by the following three types of motors:
the "COMPL, MOTOR CAM
(4K000)
STEPPING ", and the "COMPL, HOUSING REEL T
(2E000)
".
These motors are controlled by the CPU, which detects the
position of each movement by means of head position sensor
(Cam Sensor MC-1), ribbon encode sensor (Reel Sensor MC-
(MC-3)
2), ribbon top sensor
(MC-5)
paper exit sensor , as explained in the "Circuit Move-
ment Details."

2-3. Cam Drive

The cams ("CAM, MECHANISM L:
5L000
NISM R: ") are run by the "COMPL, MOTOR CAM
(6A000)
" through the following set mechanism modes: Standby
Paper exit Paper/Ribbon advance
per-supply Print .
Chart 1 provides the Cam Drive related timing chart.
- The angle of revolution of the cam is detected by the
"COMPL PWB, MC-1" upper head position sensor (cam
sensor). The mechanism mode position is detected based
on the combined power output signals of S1, S2, and S3.
Mode
Cam Symbol
Head Position
S1
Sensor
(Cam sensor)
output
S2
(Photoelectric
current
present: L)
S3
(MC-1)
released
Head Position
(1A000)
pressured
Head Pressure
(1A000)
fixed
Paper Guide
(5I000)
play
Non-paper-exit
released
Pinch Rollers
(5A000, 5D000,
pressured
5E000)
released
Paper-exit Pinch
Roller (5B000)
pressured
Paper-Supply released
Gear (6K000)
in contact
released
S Reel Brake
(5M000)
locked
(6A000)
", the "ASSY, MOTOR
(MC-4)
, paper top sensor , and
5K000
"; "CAM, MECHA-
Standby Paper Exit
- The pressure and release of the head ("COMPL, HOLDER
1A000
TPH: ").
- The setting of the paper guide ("COMPL, GUIDE, PAPER:
5I000
"), and the play of the head ("COMPL, HOLDER TPH:
1A000
") when under pressure.
- The pressure and release of the non-paper-exit pinch rollers
("COMPL, HOLDER, PINCH SIDE:
HOLDER, PINCH PICK:
PINCH EXIT F:
- The pressure and release of the paper-exit pinch roller
("COMPL, HOLDER, PINCH EXIT:
- The release and connection of the paper-supply gear
("GEAR, RELAY PICK UP:
- The locking and release of the S reel brake ("SLIDE, LEVER
5M000
TPH: ").
Note 1: The Cam I.D. symbols are the numbers etched into
Pa-
the "CAM,MECHANISM L
Note 2: The code in letters and numbers in parentheses
indicate identifying Loc. No. in the Parts Price List.
Paper/Ribbon Advance Paper Supply
Chart 1
–5–
5A000
5D000
", and "COMPL, HOLDER,
5E000
")
5B000 ").
6K000
").
(5K000)
".
", "COMPL,
Print