Toshiba e-Studio 166/206 2007 Service Manual Set (P/N SME060035A0)

The service manuals explain machine operation and component replacement, while the Service Handbook supplies fault isolation, service modes, adjustments, and preventive maintenance. The circuit and parts publications support board diagnosis and component identification.

The two service-manual revisions share most content; B0 adds revised CIS flat-harness installation notes. Related-model publications and individual bulletins have their own applicability limits, so their inclusion does not extend every procedure to every model listed in the set.

Searchable Text, Bookmarks, and Diagram Detail

Search and diagram navigation: Main text supports PDF search, but many circuit and board-layout labels are not searchable. The main manuals and parts catalog have embedded bookmarks; most short updates do not. Some bookmarks in the five-page Ver11 handbook extract have inaccurate targets. Small schematic, connector, and board-layout labels require zooming.

The ZIP download contains 65 printable PDFs totaling 1,633 pages, including original covers, front matter, blank pages, and six introductory supply-information pages. The total includes both service-manual revisions, separate update extracts, and the repeated copies identified above.

Copier Mechanisms, Fault Diagnosis, and Board Circuits

These selected topics outline the contents. Further examples include cartridge-detection logic and control-panel state tables.

• Scanner and laser assemblies: Step-by-step removal and replacement instructions for scanner/CIS hardware, the laser optical unit, control-panel components, covers, and PC boards.
• Paper transport and drives: Drawer and bypass feeding, registration components, main and toner drives, fuser/exit assemblies, power supply, and option installation.
• Drum and development systems: Process-unit service, drum cleaner and chargers, developer removal, recovered-toner mechanisms, and related adjustment requirements.
• Diagnostics and calibration: Jam and service-call codes, input/output checks, test and list printing, Adjustment Mode 05, Setting Mode 08, and image troubleshooting.
• Electrical and board diagnosis: System diagrams, harness connections, ASIC pin/signal references, and MAIN, SRAM, LDR, SNS, FUS, and LPNL circuits.
• Parts and preventive maintenance: Exploded assembly views, service-parts tables, regional component differences, PM kits, replacement/cleaning checklists, and dedicated service jigs.
• Field and operator support: Production-change bulletins, corrected repair procedures, copying instructions, TOSHIBA Viewer functions, and unpacking/setup documentation.

The repair publications are written for qualified service technicians; the separate operator manuals cover routine copying and user maintenance.

Machine Operation and Image Adjustments

The service manuals follow the operating path from original scanning and image processing through laser exposure, drum charging, development, transfer, fusing, and paper exit. Functional chapters explain initialization, warming-up, drawer and bypass feed sequences, abnormality detection, and power-supply behavior.

The handbook develops the adjustment work further: auto-toner sensing, registration and image dimensions, copy/print/scan density and sharpness, and high-voltage output. Mechanical adjustments address CIS and scanner-drive belts, paper sideways deviation, and the developer doctor-to-sleeve gap.

MR-2017 ADF procedures cover position, height, skew, leading edge, horizontal position, copy ratio, and opening/closing sensor setup. These procedures connect mechanical alignment with the image and feed symptoms addressed in the diagnostic sections.

Board Replacement, Firmware, and Regional Fit

MAIN/SRAM replacement material covers counter recovery, retained adjustment data, initialization, and subsequent checks. The corrected SRAM replacement bulletin includes model-specific destination settings, while later updates document additional service-data changes.

Firmware support covers the system and ADF through dedicated download jigs and the USB Software Update Tool. The older TOSHIBA Viewer firmware-updating subsection applies only to e-STUDIO163/203; the Software Update Tool section covers e-STUDIO163/166/203/206.

Option references include the KA-1640PC/C platen cover, MR-2017/C ADF, MY-1027/C paper feed unit, GC-1240/C expansion memory, KK-1660/C manual pocket, MF-1640U/E damp heater, and MH-1640 desk. Model headings, regional identifiers, and bulletin application points distinguish the relevant parts and procedures before repair work is selected.

Circuit Tracing and Parts Identification

Representative references include the e-STUDIO166/206 system block diagram, scanner-motor drive and CIS exposure/CCD circuits, MAIN-board image-processing configuration, laser-diode and polygon-motor control, high-voltage and fuser-control circuits, and AC/DC wire-harness drawings.

The PC Board Repair Manual adds ASIC pin and signal descriptions alongside board schematics. Its shared-family and option circuits require attention to the model heading; they complement the mechanical removal, adjustment, and safety procedures in the service manuals and handbook.

The parts PDF combines e-STUDIO166/206 difference sheets with the underlying e-STUDIO163/203 catalog. Those differences must be read with the base exploded views and service-parts tables when identifying 166/206 components.

Illustrated groups cover exterior panels and frames, control panel, optical frame and drive, main drive, bypass and registration sections, platen and charger assemblies, cleaner, developer and recycle path, fuser, drawer, supplies, replacement units, and PM kits. Regional entries distinguish components such as MAIN boards, laser units, supplies, and fuser units.

Together, the operating sequences, fault checks, circuit references, and parts differences help technicians trace a symptom to the relevant assembly and identify the applicable replacement configuration.

Service Tools and Component Repair Notes

Dedicated tools include doctor-sleeve jig P/N 4402048100, scanner belt-tension jig P/N 6LE60640000, and high-voltage measurement jig P/N 6LA91605000. Firmware tooling includes ADF download jig P/N 44205829000 and system download jigs P/N 6LA41994000 / 6LA41995000. The handbook also supplies grease specifications.

The sealed laser optical unit is finely adjusted and sensitive to contamination; service coverage treats it as a replacement assembly rather than a field-disassembly job. CIS installation notes address flat-harness damage from the metal-plate edge, and MAIN-board instructions identify the flat-harness orientation associated with a CA2 fault.

Fuser procedures distinguish the center and side heater lamps and their mounting orientation. Repair notes address pressure-roller installation that can deform its ground plate, excessive force that can deform the fuser roller, and drum-separation-finger handling that can scratch the drum.

Service work can expose the technician to retained high voltage, hot fuser components, moving drives, laser radiation, and ESD-sensitive boards. Follow the publications’ power-isolation and ESD precautions, and restore interlocks, covers, and safety devices before operational testing.

Field Updates and Operator Functions

The 54 bulletin/update PDFs include notices, replacement pages, illustrations, and attachments issued from 2006 through March 2009. Subjects include developer-sleeve noise, multiple drawer feeding, solid-black/C97 faults, fuser-harness trapping, ADF closure, heater-lamp and thermostat fasteners, power-supply changes, and harness updates.

Before/after part numbers, interchangeability notes, and production application points support selection of the relevant countermeasure. Some supplied notices concern related models or options rather than both e-STUDIO166 and 206.

The US copying manual is specific to the e-STUDIO166; the EU and Other Locations versions cover both models. TOSHIBA Viewer documentation reflects the Windows 2000/XP environment and covers USB drivers, local/network printer setup, scanning, email scanning, and GDI printing. Its fax functions apply only to the listed fax-equipped e-STUDIO167/207/237 models.

Selected Developer, Calibration, and Jam-Timing Data

The developer section specifies a doctor-to-sleeve gap of 0.45 ± 0.05 mm after reassembly. Printer primary-scan reproduction-ratio adjustment checks a 200 ± 0.5 mm span on an A3/LD grid test chart.

The operating-sequence section documents a 1.808-second interval from registration-clutch activation to leading-edge detection at the exit sensor. Failure to detect the sheet within that interval produces an E01 jam indication.