EPSON Stylus Color 900

Revision C

2.2.4 Paper Feed Mechanism

The paper feed mechanism manages constant paper feeding during printing through to paper ejection. Unlike previous models, the PF motor of this printer only drives the paper feed mechanism, having no connection with the carriage lock mechanism nor the pump mechanism. See Figure 2-5 and Table 2-11 for the cross section of the paper feed mechanism and the PF motor specifications, respectively.

Table 2-11. PF Motor Specifications

No.

Items

Specifications

 

 

 

1

Type

4-phase / 200-pole / HB-type stepping motor

 

 

 

2

Drive voltage

42 VDC ± 5% (Applied to the driver)

 

 

 

3

Coil resistance

8.1 Ω ± 10%

 

 

 

4

Drive mode

Bipolar constant current drive mode

 

 

 

For the printer-specific feature, the PF motor pinion transfers torque to the PF drive gear without any transmission gear in between. The gears used for the PF motor pinion and the PF drive gear are very precise.

Therefore, note the points below when handling them:

1. Do not touch the gear surface with your bare hands.

See Table 2-12 and Table 2-13 for the PE sensor specifications and the PE sensor switch mode, respectively.

Table 2-12. PE Sensor Specifications

No.

Item

Specifications

 

 

 

1

Type

Transmission-type photoelectric transfer

system

 

 

 

 

 

2

Drive voltage

5 VDC ± 5% (Applied to the driver)

 

 

 

3

Collector resistance

30 VDC or less

 

 

 

Table 2-13. PE Sensor Switch Mode

Paper

Switch mode

 

Output voltage

 

installation

 

 

 

 

 

 

 

 

Not installed

Open

0.7

VDC or less

 

 

 

 

Installed

Closed

2.4

VDC or more

 

 

 

 

P a p e r

A c t u a t o r

P E s e n s o r

N o t c h e d rSo ulleb rr o l l e r P F d r iv e ge a r

2.Keep other parts or tools for servicing such as screw drivers away from the gears.

The PE sensor in the paper feed mechanism is used to check the following:

1.During paper loading, checks if the leading edge of the paper from the ASF is correctly transported.

2.Checks if the paper loaded meets the specifications.

3.Checks if the paper is properly ejected after printing is over.

4.Checks if paper is jamming.

P a p e r e je c t io n

P F ( p o w d e r y - c o a t e d ) r o lle r r o lle r

P F m o t o r p in io n

Figure 2-5. Paper Feed Mechanism

Operating Principles

Printer Mechanism Operating Principles

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Epson SEIJ98006 manual Paper Feed Mechanism, PF Motor Specifications, PE Sensor Specifications, PE Sensor Switch Mode
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SEIJ98006 specifications

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In summary, the Epson SEIJ98006 combines advanced printing technologies, high performance, and user-friendly features to deliver high-quality results for a diverse range of applications. Whether for business or creative purposes, this printer stands out as a reliable choice for those seeking efficiency and excellence in their printing needs.
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