Epson Stylus Color 800, Руководство по обслуживанию

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EPSON Stylus
&2/25
800
Rev. A
2-6
2.2.5 Platen Gap (PG) Adjust Mechanism
The PG adjust mechanism, located at the left of the printer mechanism, consists of the PG lever, PF sub
lever, right/left parallelism adjust bushings, and CR guide shaft. PG adjust mechanism is equipped to keep
the proper platen gap according to the paper thickness to prevent ink from having friction. The PG lever
joins to the CR guide shaft which has an eccentricity via PG sub lever, and switching the lever from “0” to
“+” rotates the CR shaft and the platen gap changes from narrow to wide. Figure 2-6 show the PG adjust
mechanism.
2.2.6 CR Lock Mechanism
The CR lock lever, locate at the right side of the printer mechanism, is composed of the PF motor, PF
roller assembly, Stopper lever (CR lock lever) and so on. When there is no paper loaded and no data
stored, CR lock mechanism fixes the CR unit to the capping position. This operation is accomplished by
rotating the PF motor clockwise with the specified steps to set the stopper lever at the right end of the PF
roller to the left of the CR unit. The stopper lever is then release from the set position when the PF motor
rotates counterclockwise with the specified steps. The drive from the PF motor is transmitted in the
following order;
1) PF motor pinion gear 2) Combination gear 14, 31.5 3) Gear 70
4) PF roller assembly 5) Stopper lever
The figure below shows the CR lock mechanism.
PG Lever Po
PG Lever Position 0
PG Lever
PG Sub Lever CR Guide Shaft
Figure 2-6. PG Adjust Mechanism
PF Motor Pinion Gear
PF Motor
Combination Gears
14, 31.5
PF Roller Assembly
Timing Belt
HP Sensor
CR Motor
Stopper Lever Gear 17 Gear 19 Gear 70
Paper Eject
Roller
Paper Guide
(Front)
Compression Spring
5.85
Figure 2-7. CR Lock Mechanism