Confidential
CHAPTER 8 MAINTENANCE MODE
This chapter describes the maintenance mode which is exclusively designed for the purpose of
checks, settings and adjustments using the keys on the control panel.
In the maintenance mode, you can update memory (EEPROM: electrically erasable
programmable read-only memory) contents for optimizing the drive conditions of the
head/carriage unit, paper feed roller or paper ejection roller (if they have been replaced) or for
setting the CIS scanner area, for example. You can also customize the EEPROM according to the
shipment destination of the machine concerned. In addition, you can perform operational checks
of the LCD, control panel PCB or sensors, perform a print test, display the log information or
error codes, and modify firmware switches (WSW).
CONTENTS
EMBEDDED AND FULL MAINTENANCE PROGRAMS..............................................8-1
ENTRY INTO THE MAINTENANCE MODE.................................................................8-3
LIST OF MAINTENANCE-MODE FUNCTIONS...........................................................8-4
USER-ACCESS TO THE MAINTENANCE MODE.......................................................8-5
DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS ........................8-7
EEPROM Parameter Initialization (Function code 01, 91) ................................8-7
Printout of Scanning Compensation Data (Function code 05) ...........................8-8
Firmware Switch Setting and Printout (Function codes 10 and 11) .................8-12
Operational Check of LCD (Function code 12) ...............................................8-15
Operational Check of Control Panel PCB (Function code 13) .........................8-16
Sensor Operational Check (Function code 32) ...............................................8-18
Transfer of Received FAX Data and/or Equipment's Log (Function code 53) ..8-20
Fine Adjustment of Scanning Start/End Position (Function code 54) ..............8-22
8.5.10 Acquisition of White Level Data and CIS Scanner Area Setting
8.5.11 Updating of Paper Feeding Correction Value (Function code 58)....................8-24
8.5.12 Travel Check of the Head/Carriage Unit, Initial Setup Mode,
and Ink Absorber Count (Function code 63)....................................................8-27
8.5.13 Alignment of Vertical Print Lines in Monochrome (Function code 65) .............8-28
8.5.14 Margin Adjustment in Near-edge Printing (Function code 66) .........................8-30
8.5.16 Initial Adjustment of PWM Value (Aging of the Head/Carriage Unit)
Summary of Contents for FAX 1840C
Page 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS MFC3340CN 3240C FAX1940CN 1840C 1835C ...
Page 9: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Page 18: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 50: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 91: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Page 96: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 167: ...5 69 Confidential Viewed from the left ...
Page 171: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 191: ...6 18 Confidential Vertical Alignment Check Patterns ...
Page 193: ...6 20 Confidential Margin Check Pattern ...
Page 202: ...Confidential CHAPTER 7 CLEANING ...
Page 205: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Page 216: ...8 9 Confidential Scanning Compensation Data List a b c d e f i ...
Page 236: ...8 29 Confidential 1st sheet 2nd sheet Vertical Alignment Check Patterns ...
Page 239: ...8 32 Confidential Margin Check Pattern ...
Page 249: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Page 253: ...9 2 Confidential ...
Page 254: ...9 3 Confidential ...
Page 371: ...B Power Supply PCB U S A and Canadian models Confidential ...
Page 372: ...B Power Supply PCB European and Asian models Confidential ...
Page 401: ...Confidential February 05 SM FAX032 8XA901 5 Printed in Japan ...