Epson R2000 Service Manual

							EPSON Stylus Photo R1900/R2880/R2000Revision EDisassembly And Assembly Removing the Motors 131
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4.5.3  ASF Motor1.Remove the ASF Assy. (p.106)
2. Release the ASF Motor cable from the cable hook and disconnect the relay 
connector.
3. Remove the two C.B.P. M3 x 8 screws that secure the ASF Motor and remove the 
ASF Motor.
Figure 4-163. Removing the ASF Motor
Secure the grounding wire and the ASF Motor together with the 
screw in the middle of the printer. 
Cable Hook
ASF Motor
4) C.B.P. M3x8
Grounding Wire 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision EDisassembly And Assembly Removing the Sensors 132
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4.6  Removing the Sensors4.6.1  CR Encoder1.Remove the Carriage Shaft / Carriage Unit. (p.98)
2. Remove the two C.B.P. M2.6 x 5 screws that secure the CR Encoder Sensor 
Board.
3. Disconnect the FFC of the PW Sensor and Ink Mark Sensor from the connector on 
the CR Encoder Sensor Board, and remove the CR Encoder Sensor Board.
Figure 4-164. Removing the CR Encoder Sensor Board
4.6.2  PF Encoder1.Remove the Upper Housing / Printer Cover. (p.81)
2. Disconnect the FFC from the PF Encoder Sensor Board.
3. Remove the C.B.S. M3 x 8 screw that secures the PF Encoder Sensor Holder.
Figure 4-165. Removing the FFC and the Screw that Secures
the PF Encoder Sensor Holder
FFC
Connector
13) C.B.P. M2.6x5
(3±0.5 kgf.cm)
CR Encoder
Sensor Board
PF Encoder Sensor Holder
5) C.B.S. M3x8
(6±1 kgf.cm)
Connector
FFC 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision EDisassembly And Assembly Removing the Sensors 133
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4. While pressing the guide pin on the PF Encoder Sensor Holder using tweezers, 
slide the holder upwards to release the three tabs, and remove the PF Encoder 
Sensor Holder.
Figure 4-166. Removing the PF Encoder Sensor Holder
4.6.3  Ink Mark Sensor / PW sensor1.Remove the Carriage Shaft / Carriage Unit. (p.98)
2. Remove the C.P.B. (P1) M1.7 x 5 screw that secures the PW Sensor Holder, and 
remove the PW Sensor Holder from the Carriage Unit.
Figure 4-168. Removing the PW Sensor Holder
3. Disconnect the FFC from the Ink Mark Sensor and the PW Sensor connector, and 
remove the Ink Mark Sensor and PW Sensor.
Figure 4-169. Removing the Ink Mark Sensor and PW Sensor
Make sure that the PF Scale is in the slit on the PF Encoder Sensor.
Figure 4-167. Reinstalling the PF Encoder Sensor Holder
Tabs
Guide pin
PF Encoder Sensor
PF Scale
Slit
PW Sensor Holder
12) C.P.B. (P1) M1.7x5
(0.8±0.2 kgf.cm)
Carriage Unit Bottom Side
Connector
Ink Mark SensorPW sensor 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision EDisassembly And Assembly Removing the Sensors 134
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4.6.4  CDR Sensor1.Remove the Paper EJ Frame Assy / Front Cover / CDR Tray Base. (p.112)
2. Disengage the two hooks that secure the CDR Sensor and remove the CDR 
Sensor.
Figure 4-170. Removing the CDR Sensor
Make sure that the FFC is routed as shown in Figure 4-169







After replacing or removing the Ink Mark Sensor and the PW Sensor, 
always make the required adjustments referring to the following.
“Chapter 5 Adjustment (p.137)”
Hooks
CDR Sensor 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision EDisassembly And Assembly Removing the Sensors 135
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4.6.5  PE Sensor Holder1.Remove the APG Assy. (p.89)
2. Remove the PE Sensor connector cable from the five tabs on the Release Holder 
Assy and the two tabs on the Head Cable Cover.
Figure 4-171. Releasing the Cables
3. Release the tabs that secure the PE Sensor Holder from the notch on the Main 
Frame with a flathead screwdriver, and slide the PE Sensor Holder upwards and 
then remove it toward you.
Figure 4-172. Removing the PE Sensor Holder
Tabs
PE Sensor connector cable
Tabs
Release Holder Assy.
Head Cable Cover
PE Sensor Holder
Front SideTab
Align the four tabs and guide pin on the PE Sensor Holder with the 
positioning holes on the Main Frame correctly so that there is no 
gap between the PE Sensor Holder and the Main Frame.
Figure 4-173. Reinstalling the PE Sensor
Tabs
Guide Guide pin 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision EDisassembly And Assembly Removing the Sensors 136
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4.6.6  Cover Open Sensor1.Remove the Panel Unit. (p.78)
2. Remove the C.B.P. M3 x 8 screw that secures the Cover Open Sensor and remove 
the Cover Open Sensor.
Figure 4-174. Removing the Cover Open Sensor
Align the guide pins with the positioning holes shown in Figure 
4-174.
4) C.B.P. M3x8
Guide pins and 
Positioning holes
Cover Open Sensor 
						

							Confidential
CHAPTER
5
ADJUSTMENT 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment Items and Overview 138
Confidential5.1  Adjustment Items and OverviewThis chapter describes adjustments to be made after the disassembly/reassembly of this product.5.1.1  Servicing Adjustment Item ListThe items, purposes and outlines of the Adjustment Program are given in the following table.
Table 5-1. Adjustment Items
Adjustment
Purpose
Method Outline
PF Belt Tension 
AdjustmentThis adjustment is made to reduce the load on the PF motor and 
to ensure paper feed accuracy.See  5.2.1 PF Belt Tension Adjustment  (p.144).
PF Roller Shaft Center 
Support Position 
AdjustmentThis adjustment is made to compensate the deflection amount on 
the PF Roller Shaft and to maintain the appropriate paper feed 
amount.See  5.2.3 PF Roller Shaft Center Support Position Adjustment  (p.149).
ASF Guide Roller LDs 
Position AdjustmentThis adjustment is made to optimize the positions of the LD 
Roller Shaft and Retard Roller in order to maintain the paper 
feed accuracy.See  5.2.5 ASF Guide Roller LDs Position Adjustment  (p.159).
PG Adjustment This adjustment is made to ensure the correct distance between 
the head surface and the Front Paper Guide, and to adjust the 
parallelism between the 0 digit side and the 130 digit side to 
ensure consistent print quality.See  5.2.2 PG Adjustment  (p.145).
EEPROM Data Copy This adjustment is made to read out the necessary information 
from the EEPROM using the D4 function. If this copy is 
completed successfully, all the other adjustments required after 
replacing the main board are no longer necessary.1. Select this function in the Adjustment Program.
2. Read out the data from the defective board.
3. After replacing the board with a new one, write the read data to the new board.
Initial Setting After replacing the Main Board, information common to Main 
Boards is written by market setting.1. Select and execute this function in the Adjustment Program.
2. Write the initial settings to the EEPROM.
USB ID Input A USB ID is given to each printer to identify a specific printer 
when using multiple printers of same model.1. Select this function in the Adjustment Program and enter the serial number of the printer.
2. The correction value is saved to the specific EEPROM address of the Main Board.
Head ID Input When replacing the Print Head, this adjustment is made to 
reduce head manufacturing variations, which may cause 
individual differences in print quality.1. Enter the ID of the Head QR Code Label (Stylus Photo R1900: 29 digits, Stylus Photo R2880: 
17 digits), which is applied to the Print Head, into the program.
2. The ID is stored in the EEPROM of the Main Board.
Supplement: Read the QR code label from left to right on the top row and from top to bottom in 
due order.)
Head angular adjustment This adjustment is made to correct the error in the Print Head 
mounting position (Head angle) to make the nozzle line straight 
with respect to the paper feeding direction. Angular 
displacement is also checked for.1. Select this function in the Adjustment Program and print the adjustment pattern.
2. After checking the displacement amount of the pattern, enter the pattern number which has the 
smallest amount of displacement. 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment Items and Overview 139
ConfidentialMulti Sensor Adjustment 
(Ink Mark Sensor 
Adjustment)This adjustment is made to correct a detection position error, 
which is caused by the displacement of the Ink Mark Sensor 
mounting position, on a software basis.1. Select and execute this function in the Adjustment Program.
2. Pattern printing and adjustment are automatically executed.
Supplement: Be sure to confirm that there are no dots missing before executing this adjustment.
Bi-D adjustment This adjustment is made to correct the print timing in the go and 
return paths in bi-directional printing.1. Select and execute this function in the Adjustment Program.
2. Pattern printing and adjustment are automatically executed.
Supplement: Be sure to confirm that there are no dots missing before executing this adjustment.
First dot position 
adjustmentThis function adjusts the print starting position in the CR main 
scanning direction.1. Select this function in the Adjustment Program and print the adjustment pattern.
2. Select a pattern number 5mm away from each edge, and enter that number in the program.
3. The correction value is saved to the specific EEPROM address of the Main Board.
PW adjustment This adjustment is made to correct the PW Sensor mounting 
position on a software basis to improve a paper detection error 
caused by the variation of the mounting position.1. Select this function in the Adjustment Program and print the adjustment pattern.
2. Select a pattern number 5mm away from each edge, and enter that number in the program.
3. The correction value is saved to the specific EEPROM address of the Main Board.
Initialize PF 
deterioration offsetThe deterioration amount of the PF Roller Shaft is reflected to 
the paper feed correction amount. Every time a sheet of paper is 
fed, the deterioration amount is counted on the basis of the 
original counter value setting.When the PF Roller Shaft or 
Printer Mechanism has been replaced during repair, the PF 
deterioration counter must be reset.1. Select and execute this function in the Adjustment Program.
2. Reset the PF deterioration counter.
Disenable PF 
deterioration offsetThe PF deterioration compensation counter can be reset only 
when the PF Roller Shaft is new. To reduce the ancillary work in 
servicing, enter the maximum value (value for which 
deterioration compensation is not made) if the PF Roller Shaft 
has not been replaced.1. Select and execute this function in the Adjustment Program.
2. Reset the PF deterioration counter.
PF adjustment This correction is made when the actual paper feed amount 
differs greatly from the theoretical value due to paper slip, PF 
roller tolerances, etc. during paper feed for printing.1. Select this function in the Adjustment Program and print the adjustment pattern.
2. Select or measure the adjustment value, and write it to the specific EEPROM address on the 
Main Board.
PF adjustment (Bottom 
Margin)This correction is made when the actual paper feed amount 
while printing on the bottom of paper differs greatly from the 
theoretical value due to paper slip, exit roller tolerances, etc.1. Select this function in the Adjustment Program and print the adjustment pattern.
2. Select or measure the adjustment value, and write it to the specific EEPROM address on the 
Main Board.
Colorimetric calibration This adjustment is made to adjust the ink discharge amount. See  5.2.4 Colorimetric Calibration  (p.153).
Table 5-1. Adjustment Items
Adjustment
Purpose
Method Outline 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment Items and Overview 140
ConfidentialCR motor heat protection 
controlThis adjustment is made to measure the manufacturing 
variations of the CR Motor and PS Board to make the most of 
the motor capabilities for motor heat generation control.1. Select/execute this function in the Adjustment Program.
2. After execution, the variations are automatically measured and the measurement values are 
written to the EEPROM on the Main Board.
CR motor heat protection 
control
(Maximum value)CR Dispersion Measurement can be performed only when the 
Carriage Shaft is new. To reduce the ancillary work in servicing, 
enter the worst value (on which heat generation limit is easily 
imposed) if the Carriage Shaft has not been replaced.1. Select/execute this function in the Adjustment Program.
2. After execution, the dispersions are automatically measured and the worst value is written to the 
EEPROM on the Main Board.
Table 5-2. Maintenance Functions
Function Item
Purpose
Method Outline
Ink charge This function is used for Print Head replacement to drain 
Shipping Liquid of the after-sales service part in the head flow 
path and simultaneously fill ink in the head flow path to make all 
nozzles printable and stabilize the ink in the Print Head.1. Select this function in the Adjustment Program.
2. Transfer the factory-set command (CL execution command (Initial Ink Charge) is used as the 
command) to the printer to make the printer perform Initial Ink Charge operation.
Head cleaning This function is used to execute cleaning 3 (CL3) when ink is 
not delivered from the Print Head properly, e.g. dot missing or 
skewed injection.1. Select this function in the Adjustment Program.
2. Execute CL3.
Waste ink pad counter This function is used to read and reset the Waste Ink Counters. 1.In the Adjustment Program, select data read or reset from this function.
Before executing this function, replace the Waste Ink Pads on both the 0 digit and 130 digit side.
High Voltage Module 
inspectionThis function is used to confirm the supply voltage from the 
module falls within the specified range correctly.1. Select this function in the Adjustment Program, set the High Voltage Module to On.
2. Using the tester, measure the voltage between the frame (near 130 digit side) and the screw 
securing the electrode cable to confirm the measured voltage falls within the range of 240V to 
500V. (For the location of the screw securing the electrode cable, see Figure 4-62. (p96).)
Table 5-3. Additional Functions
Function Item
Purpose
Method Outline
Final check pattern print A4 size Use this to check if the all adjustments have been properly 
made.The all adjustment patterns are printed automatically.
US Letter size
EEPROM dump Use this to read out the EEPROM data for analysis. The all EEPROM data is automatically read out and stored as a file.
Printer information 
checkManual CL counter Use this to read out information on the printer operations. The printer information is automatically read out.
I/C exchange CL counter
Timer CL counter
Print path counter
Table 5-1. Adjustment Items
Adjustment
Purpose
Method Outline