Epson B 1100 Service Manual
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WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C Operating Principles Overview 22 Confidential 2.1 Overview This chapter explains the operating principles of the mechanical sections and electrical circuits in this product. The main components of this product are as follows. 2.2 Printer Mechanism Like the conventional model, this product uses DC motors and stepping motors as power sources. The following table describes the motor types and their applications.The basic mechanism is almost same as the Epson Stylus Photo R1900. The schematic diagram below shows the printer mechanism. Figure 2-1. Printer Mechanism Outline Board NameModel Number Control circuit board CA58 MAIN Power supply circuit board C698 PSB/PSE Control panel board C698 PNL Relay Board CA58 SUB-B CR Relay Board CA58 SUB Table 2-1. Motors Motor NameTypeApplications/Functions CR MotorDC motor with brushesUsed for carriage driving. Makes little noise during driving. The CR linear scale and CR encoder sensor are used to control the motor. PF MotorDC motor with brushesDrives the Paper loading rollers at the time of fixed- value paper loading or paper feed/eject operation. To grasp the paper feed pitch, the precision gear surface is fitted with the PF scale and the PF encoder sensor is used to control the motor. APG MotorDC motor with brushesDrives the Carriage Unit at the time of PG setting. The two APG Sensors are driven vertically to control the motor. ASF Motor4-phase, 48-pole PM type stepping motorDrives the paper feed operation of the ASF. Since this is a stepping motor, any scales or photo sensors to know the driving conditions are not required. Pump Motor4-phase, 48-pole PM type stepping motorDrives the pump, wiper, etc. of the Ink System. Since this is a stepping motor, any scales or photo sensors to know the driving conditions are not required. Rear Paper Eject Roller Front Paper Eject Roller PW Sensor CR Scale PF Roller PF Encoder SensorPF ScalePF Motor Carriage Unit Ink System Unit Pump Motor Carriage Shaft APG Sensors APG Motor APF Sensor Timing Belt CR Encoder Sensor LD Roller Retard Roller PE Sensor ASF Motor CR Motor PF Roller Cover Open Sensor
WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C Operating Principles Printhead Specifications 23 Confidential 2.3 Printhead Specifications The Printhead of this product is a F-Mach head. The following shows the arrangement of the nozzles and the color arrangement of each nozzle line when viewed the Print Head from behind. Figure 2-2. Nozzle Arrangement Note * : #1,#61 and #121 nozzles of C column are used only for flushing, and are not used for printing. Table 2-2. Nozzle Lines and the Corresponding Ink Color InkLine BlackA column: #1 to #180 B column: #1 to #180 YellowC column*: #1 to C#60 Magenta C column*: #61 to C#120 CyanC column*: #121 to C#180 2.258 (64/720inch) C column C#3 C#2 C#15.644 (160/720inch) 0.071 (1/360inch) Carriage movement direction Paper feed direction C#180 C#179 C#178 B#3 B#2 B#1B#180 B#179 B#178 A#3 A#2 A#1 A#180 A#179 A#178 B column A column
WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C Operating Principles PG Setting 24 Confidential 2.4 PG Setting As this printer uses an Auto PG (APG), an appropriate PG position is set according to the used paper type. The following table indicates the PG positions, the main applications of each position, and the relationships between the two sensors used with the APG. Note * : The signal output is “Low” while the PG positions are changed. Table 2-3. ApplicationPG Position PG (– –)PG (–)PG (Typ)PG (+)PG (++)Release Printing • Photo paper (A4 or more) • Photo paper (Less than A4)• Plain paper • Exclusive paper • PG (-) rub avoidance• Envelope • PG (Typ) rub avoidance – – Non-printing • Position for phase alignment at reassembly• PG adjustment position • Standby position after power-on –• Initialization at power-on • Cleaning (wiping) • Ink Cartridge replacement• Paper jam removal PG value 1.0mm 1.2mm 1.7mm 2.1mm 4.5mm – SensorPG (– –)PG (–)PG (Typ)PG (+)PG (++)Release APG Sensor 1* High High High High High High APG Sensor 2 Low Low Low Low High High
WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C Operating Principles Motors & Sensors 25 Confidential 2.5 Motors & Sensors Motors Sensors Figure 2-3. Motors and Sensors Layout Table 2-4. List of Motors Fig.NameSpecific A PF MotorType: DC Motor Drive voltage: 42 V DC ± 5% Armature resistance: 12.2 ± 10% B APG MotorType: DC Motor Drive voltage: 42 V DC ± 5% Armature resistance: 64.7 ± 15% C ASF MotorType: 4-phase 48-pole PM type stepping motor Drive voltage: 42 V DC ± 5% Winding resistance: 7.0 ± 10% (per phase at 25°C) D CR MotorType: DC Motor Drive voltage: 42 V DC ± 5% Armature resistance: 23.6 ± 10% EPump MotorType: 4-phase 48-pole PM type stepping motor Drive voltage: 42 V DC ± 5% Winding resistance: 10.3 ± 10% (per phase at 25°C) Table 2-5. List of Sensors Fig.NameSpecific 1 PF Encoder sensor Type: Rotary Encoder Drive voltage: 3.3 V DC ± 5% 2 APG Sensor (1)Type: Transmissive photo interrupter Drive voltage: 3.3 V DC ± 5% Sensor output: • High: In the domain of each PG position • Low: Between PG positions 3 APG Sensor (2)Type: Transmissive photo interrupter Drive voltage: 3.3 V DC ± 5% Sensor output: • High: In the domain of large PG • Low: In the domain of small PG 4 ASF SensorType: Transmissive photo interrupter Drive voltage: 3.3 V DC ± 5% Sensor output: • High: Home position • Low: Other than home position 5PE SensorType: Transmissive photo interrupter Drive voltage: 3.3 V DC ± 5% Sensor output: • High (2.4 V or more): No paper • Low (0.4 V or less): Paper exists 6 CR Encoder sensor Type: Linear Encoder Drive voltage: 3.3 V DC ± 5% 7PW SensorType: Reflective photo interrupter Drive voltage: 3.3 V DC ± 5% Sensor output: • High: No paper • Low: Paper exists 8Cover Open SensorType: Mechanical contact Drive voltage: 3.3 V DC ± 5% Sensor output: • High: Cover closed • Low: Cover open Table 2-5. List of Sensors Fig.NameSpecific 1 2 3 4 6 E D C A 8 B 5 7
WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C Operating Principles Power-On Sequence 26 Confidential 2.6 Power-On Sequence This section describes the power-on sequences. Condition Completing ink charge. No paper on the paper path. The Printhead is capped with the Cap of the Ink System. PG position is set to PG Typ. The Carriage is locked by the CR lock. The following explains how to use the simplified diagrams in Table 2-6. The diagrams show the movement of each component as seen from the front of the printer. Figure 2-4. Carriage Movement PG Typ. PG ++ HP 0 130 Digit number of CR Carriage PF RollerLD Roller The condition of the CR lock Red: CR lock is set White:CR lock is released The above shows the CR lock is set. PG position Shows “PG Typ.” position. The rotation direction of the ASF Motor Clockwise: LD Roller rotates backward Counterclockwise: LD Roller rotates normally (Paper is fed)The following shows clockwise rotation. PG variation by APG Motor drive PG becomes narrower (down-arrow): Clockwise rotation PG becomes wider (up-arrow): Counterclockwise rotation The following shows when PG is narrow. The rotation direction of the PF Motor Clockwise: Paper is fed normally Counterclockwise: Paper is fed backward The above shows clockwise rotation. Table 2-6. Operation of the power-on sequence OperationMovement of each componentPump Motor*1 1. Checking waste ink overflow 1-1. Reads out the protection counter value to check waste ink overflow.--- 2. APG initialization 2-1. The APG Motor rotates counterclockwise until the PG position is set to PG++ to initialize the APG mechanism.--- 3. Seeking the home position 3-1. The carriage moves to the 0-digit side slowly and confirms it touches the Right Frame.--- 3-2. The carriage moves to the 130-digit side slowly and confirms it touches the CR lock. --- 3-3. The carriage moves to the 0-digit side slowly and confirms it touches the Right Frame, and the home position is fixed. Afterward, the carriage position is monitored according to the signals from the CR Encoder. --- 4. Releasing the CR lock 4-1. The Pump motor rotates counterclockwise and releases the CR lock.CCW 4-2. The carriage slowly moves to the 130-digit side to the CR lock check position. --- 4-3. The carriage slightly moves to the 130-digit side. --- (Continue to the next page) PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130
WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C Operating Principles Power-On Sequence 27 Confidential 4-4. The Pump Motor rotates counterclockwise to set the Wiper of the Ink System, and then the Pump Motor rotates clockwise to retract the Wiper. CCW CW 4-5. The carriage slowly returns to its home position. --- 5. Setting the APG to PG Typ. 5-1. The APG Motor rotates clockwise and sets to PG Typ.--- 6. PF-ASF initialization 6-1. The PE Sensor detects no paper and the ASF Sensor detects that the ASF is on its home position, and then the PF Motor rotates clockwise for approx. one second. --- 6-2. While monitoring the ASF Sensor, the ASF Motor slowly rotates counterclockwise until the ASF gets out of its home position. --- 6-3. The ASF Motor rotates clockwise and the ASF Sensor detects that the ASF is on its home position. --- 7. Low temperature operation sequence*2 7-1. The carriage moves back and forth between 0- digit side and the 130-digit side for two times.--- 8. CR Motor measurement 8-1. The carriage slowly moves to the 130-digit side.--- Table 2-6. Operation of the power-on sequence OperationMovement of each componentPump Motor*1 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 8-2. The carriage performs a load measurement while moving to the VH Check position, and records the detected voltage of the PW sensor at the specified three positions, then stops. --- 8-3. The carriage detects the voltage of the PW sensor at the carriage stop position (the black area at the Paper Guide Front). --- 8-4. The carriage performs a load measurement while moving to the 0-digit side, and stops. --- 9. PF Motor measurement 9-1. The PF motor rotates clockwise for approx. two seconds, and performs a load measurement.--- 9-2. The carriage returns to its home position. --- 10. Detecting ink cartridge and initializing ink system *3 10-1. The carriage moves to the 130-digit side to check the ink end sensor. The ink remaining is detected after completing the check.--- 10-2. The carriage slowly returns to its home position. --- 11. CR lock setting 11-1.The Pump Motor rotates clockwise, and sets the CR lock.*3CW (Continue to the next page) Table 2-6. Operation of the power-on sequence OperationMovement of each componentPump Motor*1 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130
WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C Operating Principles Printer Initialization 28 Confidential Note *1 : The rotation directions of the Pump Motor and their corresponding functions are as follows. Clockwise: Cap closing/Pump suction/Wiper retracting/CR locking Counterclockwise: Cap opening/Pump release/Wiper setting/CR unlocking *2 : Executes when the detected temperature is under 5 oC (41oF) by the thermistor on the Printhead. *3 : The empty suction operation may occur depending on the situation. 2.7 Printer Initialization There are four kinds of initialization method, and the following explains each initialization 1. Hardware initialization This printer is initialized when turning the printer power on, or printer recognized the cold-reset command (remote RS command). When printer is initialized, the following actions are performed. (a) Initializes printer mechanism (b) Clears input data buffer (c) Clears print buffer (d) Sets default values 2. Operator initialization Initialization when resetting the USB software, and the following are performed. (a) Clears input data buffer (b) Clears print buffer (c) Sets default values 3. Software initialization The ESC@ command also initialize the printer. When printer is initialized, the following actions are performed. (a) Clears print buffer (b) Sets default values 4. IEEE 1284.4 “rs” command initialization The printer recognized the IEEE 1284.4 “rs” command. When printer is initialized, the following action is performed. Initialization when an error occurs. (a) Initializes printer mechanism (b) Clears input data buffer (c) Clears print buffer (d) Sets default values Initialization in normal operation (a) Clears input data buffer (b) Clears print buffer (c) Sets default values 11-2. The carriage moves to the 130-digit side slowly and confirms it touches the CR lock. --- 11-3. The carriage returns to its home position. --- Table 2-6. Operation of the power-on sequence OperationMovement of each componentPump Motor*1 PG Typ. PG ++ HP 0 130 PG Typ. PG ++ HP 0 130
WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C Troubleshooting Overview 30 Confidential 3.1 Overview This chapter describes unit-level troubleshooting. 3.1.1 Troubleshooting according to Error Messages After checking the printer LED and STM3 error indications, you can grasp the fault location using the check list in this section. When you find the fault location, refer to Chapter 4 “Disassembly and Reassembly” and change the corresponding part and/or unit. The following table indicates the check point reference tables corresponding to the error states (LED and STM3). Table 3-1. List of Error Messages Error StatusLED IndicationsSTM3 MessageSee the table for TroubleshootingPowerPaperInk Communication error ---Communication error Check all connections and make sure all devices are on. If the power was turned off during printing, cancel the print job. If the error does not clear, see your printer documentation.Refer to Table 3-2 ?Troubleshooting of Communication Error? (P.32) Model Difference ---Different device from specified Attempting to connect to a different device from that specified in the driver. Check the driver settings and the device. Printer cover open error-Flash-Printer cover open Close the printer cover.Refer to Table 3-3 ?Troubleshooting of Printer Cover Open Error? (P.34) Paper out error - Light -Paper out or not loaded correctly Reload the paper, then press the Paper button on the printer or click the [Continue] button if it appears on the screen. To cancel the print job, click the [Cancel] button if it appears on the screen.Refer to Table 3-4 ?Troubleshooting of Paper Out Error? (P.35) Paper jam error -Flash-Paper jam Press the Paper button on the printer or click the [Eject] button when it appears on the screen. Remove any remaining jammed paper by hand.Refer to Table 3-5 ?Troubleshooting of Paper Jam Error? (P.37) Multi-feed error - Light -Page not printed or multi-page error A page has not been printed, multiple pages have been fed into the printer at once, or the wrong paper size has been fed into the printer. Remove and reload the paper. Press the Paper button if necessary.Refer to Table 3-6 ?Troubleshooting of Multi-feed error? (P.38)