Stylus C40UX/C40SX/C20UX/C20SX | Revision A |
2.1.3 Carriage Mechanism
The carriage mechanism consists of Carriage motor (CR motor), Carriage unit (including printhead), CR timing belt, CR guide shaft, CR guide frame, CR home & I/C detector (HP/PE/IC sensor) etc. The carriage mechanism moves the carriage back
CR home position is detected with the HP/PE/IC sensor and the detection plate molded in the CR unit as following figure. When the CR home position is detected with this sensor, HIGH signal is output to the CPU.
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| Right side view |
HP/IC detection Lever |
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and forth according to the drive from the carriage motor. The following stepping motor is mounted to drive CR mechanism. (See the table below.)
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Items | Specifications | |
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Type | ||
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Drive Voltage | +42 V +/ - 5% (DRV IC voltage) | |
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Coil Resistance | 10.8 Ω +/ - 10% (per phase at 25 degree) |
CR HP detection plate |
CR HP detection plate
HP/IC detection
Lever
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| Low signal |
| High signal |
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Inductance | 15 mH +/ - 20%(1KH 1VmA) |
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Drive Method | |
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Driver IC | XC901503FNR2 |
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The drive from CR motor is transferred to the CR unit via CR timing belt. And the CR home position is detected with the HP/PE/IC sensor. This sensor is available as CR HP detector only in the HP (home position) detection sequence & pump operation sequence. (not available in the paper feeding sequence for the CR HP detector because it is used for only PE sensor during the paper feeding sequence.) Moreover, unlike the previous products, this printer dose not have the PG adjustment mechanism.
Figure 2-5. CR home position
Unlike the previous products, I/C detection sensor is not built in the CR unit.
The I/C is detected with the HP/PE/IC sensor and the detection plate molded on the I/C cover as following figure. The I/C installation condition is monitored only when the CR unit moves to the I/C detection position (HP detection sequence). So, this sensor function is not available in the paper feeding sequence. When the I/C is not installed into the CR unit, HIGH signal is output to the CPU.
HP/IC detection Lever |
| Right side view |
I/C detection plate
HP/PE/ICSensor | CR Motor | HP/IC detection |
Lever |
| High signal | Low signal |
I/C detection plate |
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Figure | I/C detection position |
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CR unit
CR Timing belt
Figure 2-4. Carriage Mechanism (Top view)
Operating Principles | Overview | 28 |
